FPGA & CPLD
Subcategories
Products (124)
A42MX16-3PQG100 - 24K Gates FPGA 83 I/O | Microchip
The Microchip Technology (Microsemi) A42MX16-3PQG100 is a 24,000-system-gate antifuse FPGA from the MX family, supplied in a 100-pin PQFP (100-BQFP) package with 83 user I/Os. Fabricated on 0.45 um CMOS technology, it delivers maximum toggle frequencies of 142 MHz and 237 MHz depending on cell type, and operates from 3.3V or 5.0V supplies. An FPGA (Field Programmable Gate Array) is a semiconductor device containing configurable logic blocks (CLBs) and programmable interconnects that designers configure after manufacturing. Within the programmable logic hierarchy - FPGA -> programmable logic device -> digital integrated circuit - the MX family is unique because it uses antifuse programming technology, which is one-time programmable (OTP). Unlike SRAM-based FPGAs, antifuse devices retain their configuration permanently, require no external configuration memory, and provide inherent design security against bitstream extraction. Key features include 608 configurable logic cells, a flexible 5.0V-tolerant architecture, and low power consumption typical of antifuse technology. The speed grade -3 designation indicates the fastest commercial timing tier within the A42MX16 family, making it suitable for glue logic consolidation and state machines with tight timing. Because configuration is stored in antifuse elements, the device is immune to configuration readback attacks, a key differentiator versus SRAM FPGA competitors. The MX family positions itself as a reliable, single-chip ASIC alternative, allowing legacy PLD/CPLD integration into one low-cost, high-volume device. Typical applications include industrial control, aerospace and defense systems needing design security, telecommunications line cards, and legacy 5V system obsolescence bridging. Design consideration: antifuse FPGAs are one-time programmable - functional changes require a new device, so verify the design fully in simulation or with a development device before committing production units. Pricing as of 2026-08-30 from distributor data.
A42MX16-3PQG160I - 24K Gate 5V MX FPGA, 160-PQFP | Microchip
The Microchip Technology (formerly Microsemi/Actel) A42MX16-3PQG160I is a member of the 42MX FPGA family, offering 24,000 system gates and 125 user I/Os in a 160-pin Ceramic Quad Flat Pack (PQG160/BQFP) package with speed grade 3 and industrial temperature rating (-40C to +85C). Built on a 5.0V-tolerant architecture, it serves as a reliable single-chip ASIC alternative for high-volume, legacy system integration. An FPGA (Field-Programmable Gate Array) is a type of programmable logic device that implements digital circuits through configurable logic blocks and routing fabric. Within the programmable logic hierarchy, the MX family sits alongside PLDs and CPLDs as a bridge between discrete logic and full ASIC design, enabling consolidation of multiple legacy PLDs into one low-cost, one-time-programmable device. Key features include the antifuse-based one-time-programmable architecture, which is inherently resistant to configuration readback attacks and retains programming through power cycles without an external configuration PROM. The 5.0V tolerant I/O structure makes the MX family uniquely suited for replacing 5V bus-legacy designs where modern low-voltage FPGAs cannot interface directly. Speed grade 3 denotes the fastest commercial bin within the 42MX16 offering. The MX architecture combines combinatorial and sequential modules with dedicated routing, providing predictable timing for glue logic, bus interfacing, state machines, and address decoding. Because configuration is stored in antifuse elements, there is no boot-up latency, an advantage in industrial control, avionics-adjacent and military-adjacent upgrade programs, and telecommunications infrastructure where deterministic power-up is required. Typical applications include legacy PLD integration, industrial automation controllers, communication backplane interfacing, and test equipment, all of which benefit from the 5V-tolerant I/O and non-volatile configuration. Design consideration: as a one-time-programmable device, verify design completion and run full functional simulation before programming; plan a design migration path within the 42MX family (for example A42MX24) to preserve gate-count headroom for future revisions.
A42MX16-3TQG176 - 24K Gate FPGA 176-TQFP | Microchip
The Microchip Technology A42MX16-3TQG176 is an MX family CMOS Field Programmable Gate Array (FPGA) delivering 24,000 equivalent system gates, 608 Configurable Logic Blocks (CLBs), and 140 user I/Os in a 176-terminal TQFP (Thin Quad Flat Package) surface-mount package. The speed grade -3 supports a maximum clock frequency of 129 MHz. The MX FPGA family is a line of flash-based, single-chip ASIC alternatives from Actel (now Microchip). An FPGA (Field Programmable Gate Array) is a semiconductor device containing configurable logic blocks and programmable interconnects that designers configure after manufacturing, positioned in the programmable logic hierarchy between CPLDs and high-end FPGAs. The MX family integrates legacy PLD designs into a single, low-cost, high-volume device. Key features include a 5.0 V architecture with inherent tolerance for legacy 5V industrial signal environments, antifuse-style nonvolatile programming that retains configuration at power-up without an external boot PROM, and anti-tamper security since configuration data is not stored in an accessible bitstream format. The 608 CLBs and 140 I/Os provide sufficient density for glue logic consolidation, bus interfacing, and legacy ASIC replacement. The MX architecture uses a sea-of-modules structure with combinational and sequential logic modules connected by a segmented routing fabric. Programming is performed once at programming stations, after which the device behaves as a fixed-logic ASIC, giving deterministic timing and low static power typical of antifuse/flash-based programmable devices. Typical applications include industrial control units (ECU logic), telecom line-card glue logic, military/aerospace legacy upgrades, and consolidation of multiple PAL/GAL/PLD devices into one chip. The 5V tolerant architecture makes it particularly suited to retrofit designs built around 5V buses. Design consideration: MX devices are one-time-programmable; verify the design in simulation and, where possible, validate on a similar-chip debugging approach before committing production units.
A42MX16-TQG176A - 24K Gate 5V FPGA, 176-TQFP | Microchip
The Microchip (Microsemi) A42MX16-TQG176A is a member of the 42MX FPGA family, providing 24,000 system gates (608 logic cells), 140 user I/Os, and system performance up to 153 MHz in a 176-pin TQFP surface-mount package. It operates from a single 5.0V supply and carries an automotive temperature grade designation. An FPGA (Field-Programmable Gate Array) is a class of programmable logic IC whose interconnect and logic functions are configured by the designer after manufacturing, occupying the middle of the programmable-logic hierarchy between simple CPLDs and high-density system-on-chip FPGAs. The MX family is positioned as a reliable, single-chip ASIC alternative, built on 0.45 um flash/antifuse-backed technology for high-volume, cost-sensitive designs and legacy PLD integration. Key features include the efficient 5.0V MX architecture that directly interfaces with legacy 5V logic without level shifting, 153 MHz system speed for moderate-performance sequential designs, and a compact yet thermal-friendly TQFP-176 footprint with 0.5 mm pitch leads suitable for standard surface-mount assembly. The A grade suffix indicates automotive quality screening, supporting extended-reliability transportation and industrial programs. Technically, the MX fabric combines combinational and sequential modules with dedicated routing, allowing designers to consolidate multiple legacy PLDs, glue logic, and state machines into one low-cost device while preserving pinout stability across the A42MX09/A42MX16/A42MX24/A42MX36 family members. Typical applications include industrial automation controllers, transportation and automotive subsystems, motor-drive sequencing, legacy MIL/AERO logic upgrades, and high-volume embedded control boards that need deterministic single-chip logic at low unit cost. When designing with this device, verify the 5V supply rail integrity and decouple VCC/VPP per the Microsemi 40MX/42MX datasheet (DS2136/DS2316); also confirm programmer compatibility (Silicon Sculptor / FlashPro family tooling) early in the project.
A42MX16-VQG100I - MX FPGA 24K Gates 5V 100-TQFP | Microchip
The Microchip (Microsemi/Actel) A42MX16-VQG100I is a member of the 42MX family of antifuse-based FPGAs, offering 24,000 system gates, 608 logic cells, and 83 user I/Os in a 100-pin VQFP/TQFP surface-mount package. It operates on a flexible 5.0V architecture with 3.3V/5V I/O compatibility and supports clock rates up to 103 MHz/172 MHz on a 0.45um process. An FPGA (Field-Programmable Gate Array) is a type of programmable logic IC that implements custom digital circuits after manufacturing. The MX family uses Actel antifuse technology, a one-time-programmable interconnect that is inherently non-volatile, low-power, and resistant to configuration upset - making MX devices a reliable, single-chip ASIC alternative for high-volume designs and legacy PLD consolidation. Key features include the cost-effective 5.0V architecture, single-chip operation without external configuration devices, industrial temperature range (-40C to +85C) denoted by the -I suffix, and secure antifuse programming that leaves no bitstream to read back. With 24K system gates, the device integrates glue logic, bus interfaces, and state machines that previously required multiple discrete PLDs. Technically, the 42MX architecture combines combinatorial logic modules with sequential modules, routing through low-resistance antifuse elements. This yields deterministic timing, low static power, and immunity to configuration errors compared to SRAM FPGAs. The trade-off is one-time programmability: design changes require a new device rather than a re-flash. Typical applications include industrial control systems, military/defense upgrades, legacy ASIC/PLD integration, 5V bus interfacing, and high-volume embedded controllers where non-volatile, tamper-resistant logic is required. Designers should verify design freeze before programming, as antifuse devices cannot be reworked in the field. Use Microchip Libero SoC for design entry and programming file generation.
A42MX24-1PLG84I - 36K Gate MX FPGA, PLCC-84 | Microchip
The Microchip Technology A42MX24-1PLG84I (originally Actel/Microsemi) is a member of the MX FPGA family, delivering 36,000 system gates with 912 logic cells in an 84-pin LCC (J-Lead, PLCC-84) surface-mount package. It operates from a dual 3.3V/5V supply (3V~3.6V or 4.5V~5.5V) across an industrial temperature range of -40C to +85C. An FPGA (Field-Programmable Gate Array) is a semiconductor device containing configurable logic blocks and programmable interconnects that the designer wires together after manufacturing, sitting in the programmable-logic hierarchy between CPLDs and full ASICs. The MX family is specifically positioned as a single-chip ASIC alternative and a platform for consolidating legacy PLDs into one low-cost, high-volume device. Key features include up to 2.5 kbits of configurable dual-port SRAM, fast wide-decode circuitry (D-modules arranged around the device periphery, providing CPLD-like wide-input AND functions), and up to 202 user-programmable I/O pins across the family (72 I/O in this package per distributor data). The 0.45um CMOS process and 5V-tolerant architecture make it well suited to legacy 5V system designs that modern FPGAs no longer support. The antifuse-based MX architecture provides non-volatile, secure configuration that is live at power-up, eliminating the external configuration PROM required by SRAM FPGAs - an important reliability benefit in industrial and defense-adjacent systems. Typical applications include legacy PLD consolidation, glueless bridge logic, industrial control, and mil-aerospace program sustainment where a proven, stable design must remain in production. Design consideration: this device is in Last Time Buy status per distributor data (Microchip USA), with a 10-week manufacturer lead time - new designs should evaluate current Microchip FPGA families, while existing designs should secure lifetime quantities.
A42MX24-1PQG160 - 36K Gate 5V FPGA 125 I/O PQFP-160 | Microchip
The Microchip Technology (Microsemi) A42MX24-1PQG160 is a 36,000-system-gate FPGA from the 42MX family, housed in a 160-pin PQFP (BQFP) package with 125 user I/O. Fabricated on a 0.45um CMOS process, it operates from a 3.3V/5.0V supply and integrates 912 Configurable Logic Blocks (CLBs) plus D-modules with wide-decode circuitry for fast, wide-input AND functions similar to CPLD architectures. An FPGA (Field-Programmable Gate Array) is a semiconductor device containing an array of configurable logic blocks and programmable interconnects that the designer wires together after manufacturing, making FPGAs a flexible single-chip alternative to ASICs within the broader programmable logic hierarchy (FPGA -> programmable logic device -> digital IC -> semiconductor). Key features of the MX family include a reliable, flexible 5.0V-tolerant architecture, single-chip operation that consolidates legacy PLDs, glue logic, and system functions, and act-one antifuse-free SRAM-based-style configuration supporting high-volume production. The MX platform is positioned by Microchip as a cost-effective, low-risk ASIC replacement for legacy and industrial designs, with the A42MX24 die also offered in industrial temperature, military, and space-grade variants. Architecturally, the 42MX family arranges D-modules around the device periphery, providing wide-decode capability, while the CLB array delivers registered and combinational logic with predictable routing. The -1 speed grade supports system clock rates in the 100 MHz class, with the A42MX24 series specified at up to 114.75 MHz maximum toggle performance per Microchip product documentation. Typical applications include industrial control, legacy system re-design, integration of multiple PLDs into one low-cost device, communications backplane glue logic, and motor/control interface logic in 5V industrial environments where modern low-voltage FPGAs are inconvenient. Design considerations: budget I/O for the 125 available user pins, follow Microchip datasheet DS2136 for configuration and power-up sequencing, and verify lead-time and lifecycle status since the 0.45um MX family targets legacy designs. Pricing below reflects distributor data as of 2026-08-30.
A42MX24-3PLG84I - 36K Gate FPGA 84-PLCC | Microchip
The Microchip Technology A42MX24-3PLG84I is a member of the 42MX FPGA family, delivering 36,000 system gates (912 logic cells) built on a 0.45 um antifuse architecture in an 84-pin PLCC (J-lead) package. It operates from dual 3.3V/5V supplies and carries an industrial temperature rating, making it a proven single-chip ASIC alternative for high-volume, cost-sensitive systems. A field programmable gate array (FPGA) is an integrated circuit that engineers configure after manufacturing to implement custom digital logic. The MX family sits within the broader taxonomy of FPGA > programmable logic device > semiconductor, and unlike SRAM-based FPGAs, its antifuse-based programming is non-volatile and radiation-tolerant by construction, requiring no configuration device at power-up. Key features include 36K system gates with D-modules arranged around the device periphery providing fast, wide-input AND decode functions similar to CPLD architectures, an efficient flexible 5.0V-tolerant architecture, and legacy PLD integration on a single low-cost device. Speed grade -3 denotes the fastest commercial/industrial bin in the family. The 84-PLCC (29.31x29.31 mm) surface-mount package offers through-hole-like mechanical robustness favored in aerospace, industrial, and defense retrofits. Architecturally, the device combines combinatorial R-modules, sequential C-modules, and wide-decode D-modules, enabling glue logic consolidation, bus interfacing, and state-machine implementation with deterministic timing. Microsemi (now Microchip) positioned MX as a high-volume ASIC replacement platform. Typical applications include legacy system obsolescence redesign, industrial control glue logic, military/aerospace interface bridging, and communications backplane control. Design consideration: verify power sequencing of the 3.3V and 5.0V rails and confirm last-time-buy status against your lifecycle plan, as the MX family is in end-of-life transition. Prices as of 2026-08-30.
A42MX24-3PQG160I - 36K Gate 5V FPGA 160-BQFP | Microchip
The Microchip Technology (Microsemi) A42MX24-3PQG160I is a member of the Actel/Microsemi 42MX FPGA family, delivering 36,000 system gates, 912 logic cells, and 125 user I/O in a 160-pin BQFP (PQFP) package with 0.65 mm pin pitch. Fabricated on a 0.45 um process, it operates from a 5.0 V core supply with 3.3V/5.0V mixed-voltage I/O and is rated for the industrial temperature range of -40C to +85C. An FPGA (Field-Programmable Gate Array) is a class of programmable logic IC that sits above CPLDs and below ASICs in the integration hierarchy; the MX family is unique in using antifuse technology, which is one-time programmable, non-volatile, and inherently latch-up and configuration-pulse immune. This makes MX devices a reliable single-chip ASIC alternative for high-volume, cost-sensitive systems. Key features include the 42MX fabric of C-Modules (combinational), S-Modules (sequential with D flip-flops), and D-Modules (wide-decode AND functions similar to CPLD architectures). MultiPlex I/O supports both 3.3V and 5.0V operation, programmable PCI support, and a low-power mode. The -3 speed grade indicates the fastest timing bin in the family. The architecture is optimized for integrating legacy PLD, PAL, and GAL designs into a single low-cost device, and the 5.0 V tolerance makes it especially well suited for industrial systems, motor control, and military/defense boards that still run on 5 V rails. Typical applications include glue logic consolidation, bus interfacing, legacy ASIC replacement, and PCI bridge logic. Design consideration: antifuse FPGAs are one-time programmable - finalize your Libero/Designer netlist before programming, and verify I/O bank voltage assignments against the 160-BQFP pinout in the 40MX/42MX datasheet (DS2316).
A42MX24-F - 24k-Gate 5V Antifuse FPGA | Microchip Technology
The A42MX24-F is a member of the Actel 40MX/42MX FPGA families, now manufactured by Microsemi and sold by Microchip Technology. It integrates 24,000 system gates in a single-chip, non-volatile antifuse device supplied in a fine-pitch BGA package (suffix -F). The architecture operates from a 5.0V core with MultiPlex I/Os that support mixed-voltage systems at both 5.0V and 3.3V. An antifuse FPGA is a one-time-programmable, non-volatile programmable logic device whose switching elements are permanent metal-to-metal antifuse interconnects. Unlike SRAM-based FPGAs, antifuse devices need no configuration ROM, power up instantly, and offer inherent design security plus resistance to configuration upset. Within the programmable-logic hierarchy, MX sits between CPLDs and high-density SRAM FPGAs as a reliable, low-cost, single-chip ASIC alternative. Key features include D-modules arranged around the device periphery, which provide wide-decode circuitry delivering fast, wide-input AND functions similar to CPLD architectures. The MultiPlex I/O structure is fully compliant with the PCI Local Bus Specification (version 2.1), enabling programmable PCI operation, low-power mode, and high-performance 5.0V or 3.3V interfacing. Architecturally, the 42MX device combines combinational C-modules and sequential S-modules, giving efficient mapping of both random glue logic and registered pipelines. The D-module wide-decode resources accelerate address decoding, state-machine output decode, and bus interfacing tasks. As a non-volatile antifuse solution, the device requires no external boot device and exhibits near-zero standby configuration overhead. Typical applications include legacy PLD consolidation onto a single low-cost device, high-volume industrial control boards, 5V PCI add-in cards, and ASIC prototyping where design security matters. Its 5V-tolerant, 5V-capable I/O makes it uniquely valuable in mature 5V industrial and transportation systems. When designing with the A42MX24-F, remember that antifuse programming is permanent: verify the programmed design thoroughly before committing to volume, and plan I/O standards and power budgets around the 5.0V architecture.
A42MX24-TQG176 - 36K Gate MX FPGA, TQFP-176 | Microchip
The Microchip (Microsemi) A42MX24-TQG176 is a member of the Actel MX antifuse FPGA family, delivering 36,000 system gates with up to 150 usable I/O in a 176-pin Thin Quad Flat Pack (TQFP-176) surface-mount package. Operating from 3.3V/5V supplies, it is a one-time-programmable, single-chip ASIC alternative for high-volume, low-cost digital designs. An antifuse FPGA is a field-programmable gate array whose programmable interconnect elements are open circuits that permanently close when programmed. Unlike SRAM-based FPGAs from Xilinx or Altera, antifuse devices such as the 42MX family retain their configuration through power cycles, require no external configuration PROM, and exhibit no configuration readback - making them inherently resistant to bitstream cloning and radiation-induced configuration upsets. Key features include a 5.0V-tolerant architecture, a sea-of-modules fabric combining C-modules (combinational logic) and S-modules (sequential logic), plus D-modules around the device periphery that provide fast, wide-input AND decode functions similar to CPLD architectures. The A42MX24 provides 912 logic cells, supporting legacy PLD integration into a single low-cost device per Microchip product documentation. Technically, the MX family is built on a 0.45-micron antifuse CMOS process, achieving deterministic interconnect delays ideal for safety- and reliability-focused designs. Because programming is permanent, timing does not vary with reconfiguration, simplifying signal-integrity analysis in industrial control and avionics heritage platforms. Typical applications include glue logic consolidation, legacy PLD and ASIC integration, industrial automation control, and MIL/aerospace heritage system sustenance where firmware-update capability is not required and configuration security matters. Design consideration: since the device is one-time-programmable, thoroughly verify the design in simulation and, if possible, prototype on a larger MX device before committing to production programming.
A42MX36-2BGG272 - 54K Gate 5V FPGA, 202 I/O | Microchip
The A42MX36-2BGG272 is a 54,000-gate Field Programmable Gate Array (FPGA) from Microchip Technology (formerly Microsemi) 42MX family, packaged in a 272-ball BGA (BBGA) with 1.27 mm ball pitch and 202 user I/Os. It provides 1184 Configurable Logic Blocks (CLBs) with a maximum clock frequency of 91 MHz for the -2 speed grade, all operating from a single 5.0V supply. The MX family is a class of antifuse-style, one-time-programmable FPGAs designed as a reliable, single-chip ASIC alternative. Within the broader hierarchy of FPGA and programmable logic devices, MX devices occupy the cost-effective, high-volume segment, enabling designers to integrate legacy PLD and glue-logic designs into a single low-cost, low-risk device. The 5.0V architecture makes it especially valuable for industrial systems still standardized on 5V signaling. Key features include 2438 logic cells, dual-port SRAM blocks optimized for FIFO and LIFO buffering, high gate utilization, and dedicated I/O clusters. The dual-port SRAM blocks provide an optimal solution for high-speed buffered applications, and Microsemi ACTgen Macro Builder software rapidly generates memory functions from the SRAM blocks. Design entry is supported through Microchip Libero SoC / Designer tool flows with ACTgen macro libraries. The device supports both commercial and industrial/military temperature ranges across the family, and the largest family member (A42MX36) is additionally offered in CQ208 and CQ256 ceramic packages screened to MIL-STD-883 levels for defense and aerospace programs, with PQ208 and CQ208 pin compatibility enabling plastic-to-ceramic conversion. Typical applications include legacy 5V industrial control, military/aerospace upgrades, ASIC prototyping, bus-interface logic consolidation, and high-volume embedded systems replacing multi-chip PLD implementations. Design consideration: MX devices are one-time-programmable, so verify the bitstream thoroughly in simulation before programming; plan power distribution across the 272-BGA footprint, and note that the -2 grade supports up to 91 MHz system clocks.
A42MX36-2PQG208I - 54K Gate 5V FPGA PQFP-208 | Microchip
The A42MX36-2PQG208I is a Microsemi (now Microchip Technology) MX family FPGA delivering 54,000 system gates with 1,184 logic cells and up to 176 user I/Os in a 208-pin plastic quad flat package (PQFP/BFQFP). The -2 speed grade supports toggle rates of 98 MHz/164 MHz, and the device operates over the industrial temperature range (-40C to +85C) with a dual 3.3V/5V supply architecture. An FPGA (Field-Programmable Gate Array) is a semiconductor device containing programmable logic blocks and interconnects that designers configure after manufacturing, sitting within the broader hierarchy of programmable logic: PLD -> CPLD -> FPGA -> system-on-chip. The MX family is an antifuse-based, one-time-programmable FPGA platform, which means configuration is non-volatile, instant-on at power-up, and inherently immune to configuration-stream corruption - a key reliability trait versus SRAM FPGAs. Key features include the 5.0V-tolerant MultiPlex I/O architecture supporting mixed-voltage systems at both 5.0V and 3.3V, programmable PCI support fully compliant with the PCI Local Bus Specification version 2.1, a low-power mode, and a 0.45um antifuse process technology. As the largest member of the 42MX family, the A42MX36 is positioned as a single-chip ASIC alternative for high-volume, cost-sensitive designs and legacy PLD integration. Typical applications include industrial control and automation, legacy 5V system upgrades, mil/aerospace boards requiring ceramic-package upgrade paths, telecommunications line cards, and glue-logic consolidation. The dual-voltage I/O makes it especially valuable when interfacing modern 3.3V logic with legacy 5V buses. Design considerations: the antifuse fabric is one-time-programmable, so verify timing closure in Libero SoC before programming production devices; the plastic PQFP-208 footprint is pin-compatible with the CQ208 ceramic package for prototyping-to-production conversion.
A42MX36-3PQG208I - 54K-Gate FPGA, 176 I/O | Microchip Technology
The Microchip Technology (Microsemi) A42MX36-3PQG208I is a member of the actel/Microsemi MX FPGA family, offering 54,000 system gates, 1184 logic cells, and 176 usable user I/Os in a 208-pin Plastic Quad Flat Pack (PQFP/BFQFP) with 0.5 mm lead pitch. The device operates at 3.3V/5V mixed-voltage levels and supports system clock rates of 108 MHz/180 MHz depending on the routing resource, fabricated on a 0.45 um CMOS process with a -3 speed grade and industrial temperature range (-40C to +85C, denoted by the I suffix). An MX FPGA is a type of field-programmable gate array - a reprogrammable or one-time-programmable logic device that implements custom digital circuits from a hardware description language such as VHDL or Verilog. Within the FPGA hierarchy, the MX family occupies the low-power, 5V-tolerant, high-reliability segment, positioned as a single-chip ASIC alternative for legacy PLD integration and defense/aerospace designs. The 42MX family features antifuse-based architecture, ensuring non-volatile, live-at-power-up configuration. Key features include MultiPlex I/O supporting mixed-voltage 3.3V and 5.0V systems, programmable PCI compatibility (fully compliant with the PCI Local Bus Specification version 2.1), a low-power mode, and 2560 total flip-flop-equivalent capacity. According to the Microchip 40MX/42MX Families Datasheet (DS2136), the A42MX36 is the largest family member and is also available in CQ208/CQ256 ceramic packages screened to MIL-STD-883 levels; the CQ208 and PQ208 devices are pin-compatible for easy prototyping and plastic-to-ceramic conversion. Typical applications include industrial control, aerospace and defense electronics, bridge logic, bus interface, and state-machine replacement in systems requiring 5V-tolerant I/O and long-lifecycle supply. Design consideration: because the MX family is 0.45 um technology, plan I/O voltage levels early in mixed-rail designs; use the pin-compatible ceramic CQ208 variant for prototyping before committing to production plastic parts.
A54SX08-PLG84 - 8K Gate SX FPGA, 84-PLCC | Microsemi
The Microsemi (now Microchip Technology) A54SX08-PLG84 is an 8,000-gate SX-family antifuse field programmable gate array (FPGA) with 512 logic cells, 69 user I/O, and clock frequencies up to 240 MHz, housed in an 84-pin PLCC (PLG84) J-lead package operating from 3.3V/5V supplies. An FPGA (field programmable gate array) is a semiconductor device containing a matrix of configurable logic blocks (CLBs) interconnected by programmable fabric, allowing designers to implement custom digital circuits after manufacturing. Within the programmable logic hierarchy, the A54SX08 belongs to the Actel/Microsemi SX family of antifuse FPGAs - one-time-programmable (OTP) devices positioned below flash-based and SRAM-based FPGAs in system architecture. Antifuse programming gives the SX family inherent resistance to configuration bitstream readback, a key security and reliability trait in defense and industrial designs. Key features include 8K equivalent system gates, 512 programmable cells organized into Cluster and FastConnect routing structures, 240 MHz maximum toggle performance on a 0.35 um CMOS process, and dual 3.3V/5V tolerant I/O operation. The 84-lead PLCC package uses a 1.27 mm pin pitch with J-bend terminations, offering a robust, reworkable surface-mount footprint popular in legacy board designs and space-constrained industrial assemblies. Technically, the SX architecture combines C-cell (combinational) and R-cell (register) modules with dedicated flip-flops, delivering fast pin-to-pin timing that simplifies system interface design and supports parallel board-level development. The antifuse interconnect adds less parasitic capacitance than SRAM switches, contributing to the family's speed and low dynamic power. Typical applications include glue logic consolidation, industrial control, military/aerospace subsystems, communications line cards, and legacy board sparing - anywhere a small, secure, one-time-programmable FPGA in a through-hole-rework-friendly PLCC is required. Design consideration: because antifuse FPGAs are OTP, verify your netlist thoroughly in simulation and via the Libero/Designer tools flow before programming; there is no in-system reconfiguration as with SRAM FPGAs. This page synthesizes distributor pricing availability, drop-in speed-grade alternatives, and practical sourcing guidance not found in the manufacturer datasheet.
A54SX16-2PQG208 - 24K Gate SX FPGA 175 I/O | Microsemi
The Microsemi A54SX16-2PQG208 is an SX-family antifuse field programmable gate array (FPGA) with 24,000 system gates, 1452 logic cells, 175 user I/O, and a -2 speed grade, housed in a 208-pin BFQFP (PQFP 28x28 mm) package. It operates from dual supply rails of 3.0V to 3.6V and 4.75V to 5.25V, with an internal core at 3.3V nominal, over a commercial temperature range of 0C to +70C. An antifuse FPGA is a type of programmable logic device in which interconnects are permanently formed at programming time by dielectric breakdown of an antifuse element. Unlike SRAM-based FPGAs, antifuse devices are non-volatile and radiation-tolerant by nature, require no configuration PROM, and power up instantly. The device sits in the taxonomy: FPGA -> field programmable gate array -> programmable logic device -> digital IC. Key features include the Actel sea-of-modules architecture, which delivers gate-array-like routability and deterministic timing, 0.35 um CMOS antifuse technology, and system-level performance up to roughly 320 MHz toggle rates as cited by distributor listings for this speed grade. Dual 3.3V/5V supply support eases integration into legacy 5V backplanes and mixed-voltage industrial systems, a capability largely absent from modern SRAM FPGAs. Technically, the SX family uses C-cells for combinational logic and R-cells for sequential logic in a segmented routing fabric, giving designers predictable propagation delays without the configuration volatility of SRAM fabrics. The 175 programmable I/O pins support a broad range of standard drive levels, and the 208-pin QFP offers practical hand-inspection and rework characteristics compared with ball-grid alternatives. Typical applications include industrial control and automation, 5V-legacy interface bridging, telecommunications line cards, military and avionic subsystems requiring non-volatile instant-on logic, and obsolescence redesign where a proven one-time-programmable FPGA is preferred. Design consideration: antifuse FPGAs are one-time programmable; reserve design margin and verify pinout before programming, because a functional change requires a new device. Budget the 5.25V rail for the I/O bank and 3.3V for the core. This page synthesizes distributor pricing context, drop-in alternatives within the SX family, design notes, and FAQ content not consolidated in the manufacturer datasheet.
A54SX16P-2VQG100 - 16K Gate FPGA 320MHz | Microsemi/Microchip
The Microsemi (Microchip) A54SX16P-2VQG100 is a CMOS FPGA from the SX family delivering 16,000 usable gates (924 logic cells, 1452 CLBs) with a maximum toggle rate of 320 MHz, housed in a 100-pin VQFP (TQFP-100) surface-mount package operating at 3.3V/5V. An FPGA (Field-Programmable Gate Array) is a semiconductor device containing a matrix of configurable logic blocks (CLBs) interconnected by programmable routing resources. In the system hierarchy, an FPGA sits between fixed-function ASICs and general-purpose processors, allowing designers to implement custom digital logic without fabricating a custom chip. The SX family uses a sea-of-modules architecture that simplifies design time, reduces design cost and power consumption, and shortens time to market for performance-intensive applications. Key features include 16K equivalent gates, a 0.35um CMOS process, a combinatorial CLB delay as low as 0.7 ns, and dual 3.3V/5V I/O supply support, which eases integration into legacy 5V backplane systems as well as modern 3.3V designs. Technically, the SX architecture organizes logic into fast array modules and decode modules, giving predictable, short interconnect delays suited to glue logic, state machines, bus interfaces, and high-speed control paths. The -2 speed grade defines the timing performance tier, and the commercial temperature suffix supports 0C to +70C operation. Typical applications include industrial control and automation, communications and networking interface logic, test and measurement instrumentation, and military/aerospace legacy design maintenance where the SX family remains a reference platform. A key design consideration is that this device is antifuse-programmable (one-time programmable), so it retains configuration at power-up without an external configuration PROM, but design changes require a new device. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet.
A54SX32-1CQ208 - 48K Gate SX FPGA, 208-CQFP | Microchip
The Microchip Technology A54SX32-1CQ208 is a 48,000-system-gate SX-family FPGA (field-programmable gate array) delivering 174 programmable I/O pins, up to 240 MHz system performance, and dual-voltage operation (3.0 V to 3.6 V core and 4.75 V to 5.25 V I/O) in a 208-pin BFCQFP ceramic quad flat package with tie bar. An FPGA is a semiconductor device containing a matrix of configurable logic blocks (CLBs) interconnected by programmable interconnects, allowing designers to implement custom digital circuits after manufacturing. FPGAs sit within the broader hierarchy of programmable logic ICs, sitting above CPLDs in density and below ASICs in volume cost, and are a cornerstone of modern digital system design. Key features of the A54SX32-1CQ208 include 2880 configurable logic modules in a sea-of-modules architecture, a 0.35 um CMOS process, and pin-to-pin family migration options across the SX and SX-A families. The sea-of-modules architecture simplifies design timing closure, reduces design cost and power consumption, and shortens time-to-market for performance-intensive applications. Architecturally, the SX family uses a two-module fabric (sequential and combinational modules) that yields high gate utilization and predictable routing delays. The ceramic CQFP package with tie bar provides excellent mechanical reliability and thermal performance, making it suitable for harsh-environment and long-lifecycle systems. Typical applications include aerospace and defense control logic, industrial automation controllers, communications infrastructure glue logic and protocol bridging, and test and measurement equipment where one-time-programmable antifuse reliability is valued. Design consideration: this part is a legacy one-time-programmable (antifuse) FPGA and is RoHS non-compliant (contains lead per the ceramic package construction), so verify regulatory exemptions or consider newer family members for new designs. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
A54SX32-1CQ208B - 48K Gate FPGA 174 I/O CQFP-208 | Microchip
The Microchip Technology A54SX32-1CQ208B is an antifuse FPGA from the SX-A family delivering 48,000 system gates, 2880 logic modules, and 174 user-programmable I/O in a 208-pin BFCQFP (ceramic quad flat package) with tie bar. It operates from a 3.3 V supply (3.0 V to 3.6 V) with a 5.0 V tolerant dual-supply option (4.75 V to 5.25 V), in a military-grade commercial temperature range of -55C to +125C per distributor listings. A field-programmable gate array (FPGA) is a semiconductor device containing a fabric of configurable logic blocks and programmable interconnects that engineers configure after manufacturing, sitting within the broader hierarchy of programmable logic: FPGA -> programmable logic device -> digital logic IC. The SX-A family uses Actel's antifuse programming technology, in which a one-time-programmable interconnect element is permanently set during programming, so configuration data is retained without any external configuration memory. Key differentiators include the sea-of-modules architecture, which places dedicated combinational and sequential logic modules close together for high routing efficiency and predictable timing; antifuse interconnect, which removes configuration-cell loading for fast internal propagation; and a ceramic CQFP package with a tie bar suited to high-reliability and mil/aero socketed or soldered assemblies. Technical depth: the 48,000-gate fabric of 2880 modules supports synchronous designs at high internal clock rates, while 174 I/O allows wide data buses. Dual-supply support (3.3 V and 5 V rails) eases integration into legacy 5 V backplanes common in defense and industrial retrofit programs. Typical applications include military and avionics glue-logic consolidation, bus interface bridging in 5V legacy systems, industrial control, and long-lifecycle embedded systems where one-time-programmable, non-volatile configuration without external boot flash is valued. Design consideration: antifuse FPGAs are one-time-programmable, so use thorough simulation before programming and budget for socketed or spare-device strategies during development. This page synthesizes distributor inventory, drop-in family alternatives, and lifecycle context not found on any single datasheet or distributor page.
A54SX32-2PQ208I - SX-A FPGA 48k Gates 174 I/O 208-QFP | Microchip
The Microchip Technology A54SX32-2PQ208I is an SX-A family antifuse FPGA delivering up to 48,000 system gates, 174 user I/O, and 320 MHz internal performance in a 208-pin BFQFP (PQ208) surface-mount package with industrial temperature rating (-40C to +85C). A field-programmable gate array (FPGA) is a type of configurable logic IC that implements user-defined digital circuits through programmable interconnect and logic modules. Within the programmable logic hierarchy (FPGA -> programmable logic device -> digital logic IC -> semiconductor), the Actel SX/SX-A family is unique in using a antifuse (one-time programmable) architecture rather than SRAM cells, giving it nonvolatile configuration, instant-on power-up, and high resistance to configuration SEUs. Key features of the A54SX32-2PQ208I include 320 MHz internal toggle performance, 3.7 ns pin-to-pin clock-to-out, 0.1 ns input setup, and 0.25 ns clock skew, enabling single-chip 66 MHz PCI integration. The sea-of-modules architecture supports 100% resource utilization with 100% pin locking, so routing the design never forces board respins. Dual-voltage operation (3.3V core logic with 5.0V-tolerant I/O per the SX family datasheet) simplifies mixed-voltage board designs. Technically, the device offers 2880 logic modules in the SX32 die, fabricated on a CMOS process with antifuse interconnect. Because configuration is stored in antifuses rather than external memory, no configuration PROM is needed, reducing BOM count and boot time to zero - a significant advantage over SRAM FPGAs in industrial and aerospace systems. Typical applications include industrial automation controllers, telecommunications infrastructure line cards, and aerospace/defense subsystems where nonvolatile, radiation-tolerant-architecture programmable logic is valued. Design consideration: this part contains lead and is RoHS non-compliant, so it is restricted to exempt applications; verify procurement and environmental requirements early. Note the -2 speed grade when compiling timing-constrained designs. This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.
A54SX32-2TQG176I - 48K Gate SX-A FPGA 176-TQFP | Microsemi
The Microsemi (Microchip) A54SX32-2TQG176I is a 48,000-system-gate antifuse FPGA from the SX family with 147 user I/O pins, operation up to 320 MHz, and dual supply rails of 3V to 3.6V and 4.75V to 5.25V, housed in a 176-pin TQFP (24x24 mm) package with industrial temperature rating (-40C to +85C). An FPGA (Field-Programmable Gate Array) is a semiconductor device containing a matrix of configurable logic blocks and programmable interconnects that the designer wires together after manufacturing. The SX family belongs to the antifuse FPGA category: unlike SRAM-based FPGAs, its programming connections are one-time programmable (OTP), which means the configuration is non-volatile, instantly available at power-up, and inherently resistant to configuration readback attacks. Antifuse FPGAs sit within the broader programmable logic hierarchy alongside flash-based and SRAM-based FPGAs, CPLDs, and ASICs. Key features of the A54SX32-2TQG176I include a sea-of-modules architecture that delivers gate-level ASIC-like performance, 1,800 logic cells (modules), 0.35 um fabrication technology, and a -2 speed grade. The dual-rail supply architecture supports both 3.3V and 5V I/O environments, easing integration into mixed-voltage legacy systems common in industrial and aerospace platforms. Technically, the sea-of-modules fabric implements logic in a repeating array of C-cells (combinational) and R-cells (sequential/register), interconnected through antifuse program points. This structure minimizes routing delay variability and enables deterministic, predictable timing compared to SRAM FPGA routing, with typical system-level performance up to 320 MHz as cited by distributors. Because the antifuse is programmed only once, the device also avoids configuration-scrubbing complexity in radiation-sensitive or high-reliability environments, a hallmark reason Actel/Microsemi parts are entrenched in avionics and defense designs. Typical applications include industrial control and automation, communications and networking line cards, medical instrumentation, and military/aerospace subsystems where instant-on, non-volatile configuration and supply-chain-proven longevity matter. The 147 user I/O count fits glue-logic consolidation, bus interface bridging, and protocol conversion roles. A critical design consideration: antifuse devices are one-time programmable, so a design error requires a physical part swap. Budget for programming yields and keep programmed spare inventory; use Libero/Microsemi toolchains for place-and-route and verify timing before commit. This page synthesizes distributor pricing, drop-in speed-grade and family alternatives, and practical design notes not found in the manufacturer datasheet, verified as of 2026-09-03.
A54SX32-CQ208M - 48K-Gate SX FPGA, 174 I/O | Microchip Technology
The Microchip Technology A54SX32-CQ208M (formerly Actel) is a 48,000-gate antifuse FPGA from the SX family with 2880 logic modules, 174 user I/O, and a 208-pin ceramic CQFP package with tie bar (208-BFCQFP). It operates from a dual supply of 3V to 3.6V (core) and 4.75V to 5.25V (I/O) across a military temperature range of -55C to +125C. An FPGA (Field-Programmable Gate Array) is a semiconductor device containing a sea of programmable logic blocks and interconnects that designers configure after manufacturing. Within the programmable-logic hierarchy, the SX family sits in the one-time-programmable (OTP) antifuse FPGA category, which contrasts with SRAM-based FPGAs: the antifuse configuration is non-volatile, radiation-tolerant in behavior, and immune to configuration bitstream upsets at power-up, making the technology a predecessor to Microchip's RTAX and ProASIC lines. Key features include the sea-of-modules architecture that delivers very high routing efficiency and predictable timing, 48K system gates for mid-density integration, 174 programmable I/O for wide bus interfaces, and a ceramic CQFP package suited to harsh environments. The dual 3.3V/5V supply scheme allows direct interfacing with legacy 5V systems while running a lower-voltage core for reduced power. Technically, the SX family uses a fine-grained logic module array in which each module can implement combinational or registered functions with minimal delay, enabling several-hundred-MHz-class internal performance for its generation. Because configuration is via antifuse, there is no external configuration PROM, reducing BOM count and improving design security. Typical applications include military and aerospace embedded control, industrial high-reliability glue logic and bus bridging, and communications equipment requiring non-volatile, tamper-resistant logic. Design consideration: the ceramic CQFP is a hand- or wave-solder-friendly through-hole-companion surface package; verify tie-bar grounding and thermal relief per the Microchip 54SX family datasheet before layout. This page synthesizes distributor availability, same-package drop-in speed-grade alternatives, and practical design notes not found in the manufacturer datasheet.
RTAX1000S-1CGS624V - 1M-Gate Rad-Tolerant FPGA | Microchip
The Microchip Technology (Actel/Microsemi) RTAX1000S-1CGS624V is a radiation-tolerant, antifuse-based FPGA with 1,000,000 equivalent system gates, 12096 CLBs, and 18144 dedicated logic cells, housed in a 624-ball ceramic column grid array (CGS624) package qualified for space-flight systems. A radiation-tolerant FPGA is a field-programmable gate array engineered to survive the total ionizing dose (TID), single-event latchup (SEL), and single-event upset (SEU) environments encountered in orbital and deep-space missions. Within the power-management hierarchy of spacecraft avionics, the FPGA sits between the radiation-hardened processor and the payload interfaces, implementing glue logic, bus interfaces, telemetry encoding, and payload data-path functions. The RTAX-S family is the flight-proven backbone of this category, descended from the commercial Axcelerator architecture. Key differentiating features include the non-volatile antifuse programming technology, which delivers true live-at-power-up operation with no configuration device required, single-chip form factor that eliminates external boot flash (a common failure point in space systems), embedded SRAM blocks with built-in FIFO control logic, segmentable clock circuitry, and chip-wide highway routing resources for predictable high-fanout timing. Architecturally, the RTAX1000S is built on a CMOS process with a 1.5V nominal core supply. The logic fabric comprises registered logic cells organized into Cluster Logic Blocks (CLBs), supported by embedded SRAM modules and clock-management resources. Radiation tolerance is achieved through a combination of design hardening and the inherently SEU-immune antifuse routing, which cannot be reprogrammed by ionizing particle strikes. Typical applications include satellite command and data handling, payload processing and telemetry formatting, spacecraft bus interface bridging (MIL-STD-1553, SpaceWire front-ends), launch-vehicle avionics, and instrumentation for scientific probes where live-at-power-up operation is a mission requirement. Designers should note that RTAX-S devices are one-time programmable: logic must be fully verified via the Microchip (Microsemi) Libero IDE flow and, ideally, prototyped on a reprogrammable ProASIC3E-based Aldec adaptor before committing flight hardware. This page synthesizes distributor pricing signals, drop-in alternatives within the RTAX-S/SL family, and practical design notes not found in the manufacturer datasheet.
RTAX1000S-LG624V - 1M-Gate Rad-Tolerant FPGA | Microchip
The Microchip (Microsemi/Actel) RTAX1000S-LG624V is a radiation-tolerant, antifuse-based FPGA delivering 1,000,000 equivalent system gates with 18,144 logic cells and 12,096 CLBs, housed in a 624-pin ceramic column grid array (CG624/LG624) package qualified for space-flight systems. A radiation-tolerant FPGA is a programmable logic device engineered to survive the total ionizing dose (TID), single-event latchup (SEL), and single-event upset (SEU) environments encountered in low-Earth-orbit and deep-space missions. Within the programmable logic hierarchy (FPGA -> programmable logic IC -> semiconductor), the RTAX-S/SL family sits in the space-grade segment, complementing commercial families such as Axcelerator and ProASIC3 from which it is derived. The RTAX1000S-LG624V belongs to the RTAX-S/SL and RTAX-DSP radiation-tolerant FPGA family, which extends to densities of up to four million equivalent system gates. Key features include true single-chip operation enabled by antifuse programmability (no external configuration PROM required), live-at-power-up (LAPU) behavior that makes the device functional immediately when power is applied, and low-power CMOS technology operating from a 1.5V nominal core supply. Embedded SRAM blocks with built-in FIFO control logic, segmentable clock resources, and chip-wide highway routing provide system-level integration capability. Technically, the RTAX1000S is based on the commercial Axcelerator architecture and uses an antifuse interconnect that is programmed once, making the configuration inherently immune to configuration upsets caused by radiation - a decisive advantage over SRAM-based FPGAs in orbit. This one-time programmability eliminates the need for configuration scrubbing at the device level. Typical applications include satellite payload processing, spacecraft avionics and telemetry interfaces, space-flight bus controllers, and radiation-exposed instrumentation where reprogrammability is traded for SEU-hard configuration and single-chip reliability. Design considerations: because the device is one-time programmable, thorough simulation and prototyping (for example with Aldec RTAX-S/SL adaptor boards using ProASIC3E devices) is essential before committing flight hardware. Core supply is 1.5V nominal per the PROTO datasheet entry. This page synthesizes verified distributor data, same-family drop-in alternatives, and practical design guidance not consolidated in the manufacturer datasheet.