A54SX32-2TQG176 - SX FPGA 48K Gates 147 I/O TQFP-176 | Microsemi
MPN: A54SX32-2TQG176 ✗ End of Life| Qty | Unit Price | Extended |
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| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
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Drop-in alternatives for A54SX32-2TQG176 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX32-2TQG176I
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$55.1 / Unit
View Datasheet →A54SX32-1TQG176
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$43.6 / Unit
View Datasheet →A54SX32-TQG176
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$31.2 / Unit
View Datasheet →A54SX32-TQG176I
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$86.75 / Unit
View Datasheet →A54SX32A-1TQG176I
✅ Drop-In📋 Reference alternative (not in catalog)
A54SX32-2TQG176 Maximum Ratings & Electrical Characteristics
| Family | Actel SX (54SX) |
| System Gates | 48000 |
| Logic Modules / CLBs | 2880 |
| User I/O | 147 |
| Maximum Clock Frequency | 320 MHz |
| CLB Combinatorial Delay (max) | 0.7 ns |
| Core Supply Voltage | 3 V to 3.6 V |
| I/O Supply Voltage | 4.75 V to 5.25 V |
| Process Technology | 0.35 um CMOS, antifuse |
| Programming Technology | One-time programmable antifuse (non-volatile) |
| Speed Grade | -2 (commercial) |
| Package | 176-TQFP (24 x 24 mm), 0.5 mm pitch |
| Mounting Type | Surface Mount |
A54SX32-2TQG176 176-tqfp (24 x 24 mm), 0.5 mm pitch Pin Configuration Guide
Complete pinout information for A54SX32-2TQG176 (176-tqfp (24 x 24 mm), 0.5 mm pitch package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for A54SX32-2TQG176.
Refer to the datasheet for full pin configuration.
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
A54SX32-2TQG176 is suitable for 6 applications: Industrial Control and Automation, Communications and Networking Glue Logic, Avionics and Defense Systems, High-Speed State Machines and Timing Control, ASIC Prototyping and Emulation, Medical Equipment Control Logic.
Industrial Control and Automation
The A54SX32-2TQG176 fits industrial PLC I/O scanning, sequencer, and interlock logic where a deterministic, instantly-configured FPGA is preferred over a microprocessor. Its 48,000 gates and 2,880 logic modules absorb address decoding, motor-control state machines, and safety interlocks in one chip, while the 4.75V-5.25V I/O rail interfaces directly with legacy 5V industrial buses and sensors without level shifters. Because the antifuse configuration is non-volatile, the controller is live at power-up with no boot delay or configuration corruption risk in electrically noisy factory environments. Placing the device on a 3.3V core and 5V I/O tree with local 0.1uF decoupling per supply pin yields the cleanest I/O signaling; its 0.7 ns combinatorial delay keeps scan-cycle jitter far below mechanical actuator response times.
Recommended
Communications and Networking Glue Logic
In telecom and networking line cards, the A54SX32-2TQG176 consolidates backplane interface bridging, bus arbitration, and protocol-conversion logic that historically required dozens of TTL devices. The 320 MHz maximum toggle capability and 0.7 ns worst-case CLB delay comfortably handle 100 MHz-class timing closures, and the antifuse interconnect adds no configuration-load time at card power-up - valuable in hot-standby or redundant-path equipment. The 147 user I/Os with 3.3V/5V capability let one device span both modern 3.3V PHY domains and legacy 5V backplanes. Designers should budget I/O switching current for simultaneous-switching analysis and use short, impedance-controlled traces on high-speed nets; the 24x24 mm TQFP keeps flight times short compared with larger, denser BGA alternatives on two-layer backplane stubs.
Recommended
Avionics and Defense Systems
Actel antifuse FPGAs such as the A54SX32-2TQG176 have long been used in avionics, munitions, and secure communications equipment because the one-time-programmable interconnect cannot be reconfigured or read back by an attacker and survives single-event upset better than SRAM cells in many scenarios. The 48,000-gate capacity implements bus interfaces, telemetry encoders, and built-in-test logic, while the non-volatile configuration removes the boot-device failure point critical in size-, weight-, and power-constrained platforms. The 5V-tolerant I/O simplifies integration with MIL-standard 5V logic. For temperature extremes, specify the pin-identical industrial/commercial-grade siblings (A54SX32-2TQG176I) or consult Microchip's radiation-tolerant RTAX line for higher-reliability orbits, verifying timing with the military temperature tables in the 54SX datasheet.
Recommended
High-Speed State Machines and Timing Control
The A54SX32-2TQG176's 0.7 ns CLB combinatorial delay and 320 MHz speed grade suit microseconds-critical state machines: laser or sensor timing generators, test-sequence controllers, and deterministic handshake arbitration. The sea-of-modules architecture places each logic module a short antifuse hop from its neighbors, so predictable, low-skew clock trees are straightforward to meet with global clock resources described in the 54SX datasheet. Because configuration is fixed in silicon, the state machine begins operation within nanoseconds of power application, unlike soft-configuration SRAM designs. Designers should register inputs and outputs near the I/O ring to keep routing delays symmetric, and simulate worst-case (-2 speed grade, commercial temperature) timing in Libero before release, since antifuse devices cannot be patched in the field.
Recommended
ASIC Prototyping and Emulation
With 48,000 system gates in a single antifuse array, the A54SX32-2TQG176 serves as a target or emulation vehicle for small ASIC control blocks and gate-array conversions, particularly in systems already standardized on 5V I/O. The 0.35 um CMOS process timing (0.7 ns CLB delay) gives realistic first-order correlation to gate-array timing of the same era, and the 147 I/Os expose internal nodes for instrumentation. Because each device is one-time programmable, teams typically budget several devices per iteration, trading unit cost for a configuration-secure, instant-on prototype that behaves identically in the lab and in the field. Verify floorplan-dependent timing in Libero after each place-and-route pass rather than relying on synthesis estimates, as antifuse routing choices affect net delays.
Recommended
Medical Equipment Control Logic
Diagnostic and laboratory medical devices use the A54SX32-2TQG176 for deterministic control sequencing: sample-handling motor coordination, safety interlocks, and front-end acquisition handshakes where the instant-on antifuse configuration eliminates boot-state ambiguity - a consideration in devices that must present a defined safe state at power-up. The 5V-tolerant I/O bank connects directly to legacy analog-front-end boards common in installed medical platforms, while the 48,000-gate capacity integrates interface logic that would otherwise require CPLD plus PAL cascades. Use the industrial-grade A54SX32-2TQG176I for equipment validated outside commercial temperature ranges, and add 0.1uF plus 10uF decoupling at both supply rails to protect measurement signal integrity from I/O switching noise in mixed-signal enclosures.
Recommended
Recommended Products Summary
Engineering reference data for A54SX32-2TQG176 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX32-2TQG176I | A54SX32-1TQG176 | A54SX32-TQG176 | A54SX32A-1TQG176I |
|---|---|---|---|---|---|
| Package | 176-TQFP (24x24 mm) | 176-TQFP (24x24 mm) - same | 176-TQFP (24x24 mm) - same | 176-TQFP (24x24 mm) - same | 176-TQFP (24x24 mm) - same |
| Brand | Microsemi | Microsemi | Microsemi | Microsemi | Microsemi |
| System Gates | 48000 | 48000 | 48000 | 48000 | 48000 (SX-A family) |
| User I/O | 147 | 147 | 147 | 147 | [DATA_NEEDED] |
| Speed Grade | -2 (commercial) | -2 (industrial) | -1 | standard | -1 (SX-A) |
| Temperature Grade | Commercial | Industrial | Commercial | Commercial | Industrial |
| Supply Voltage | 3V-3.6V core / 4.75V-5.25V I/O | 3V-3.6V core / 4.75V-5.25V I/O | 3V-3.6V core / 4.75V-5.25V I/O | 3V-3.6V core / 4.75V-5.25V I/O | [DATA_NEEDED] |
| Programming Technology | Antifuse (OTP, non-volatile) | Antifuse (OTP, non-volatile) | Antifuse (OTP, non-volatile) | Antifuse (OTP, non-volatile) | Antifuse (OTP, non-volatile) |
Key Differentiators
- Fastest -2 speed grade in the TQFP-176 family (vs A54SX32-1TQG176)
- Cost-equivalent industrial-grade sibling available (vs A54SX32-2TQG176I)
- Configuration readback security (vs SRAM-based FPGAs (e.g., contemporary Xilinx 4000-series))
Design Notes
The A54SX32-2TQG176 requires two supply domains: a 3V-3.6V core rail and a 4.75V-5.25V I/O rail. Provide local 0.1uF ceramic decoupling at every supply pin pair plus bulk 10uF per rail, and follow the power-up requirements in the Microchip 54SX family datasheet to avoid latch-up during ramp. Because the I/O ring runs at 5V, compute ground-bounce from simultaneous-switching outputs when many 5V I/Os transition together; group switching outputs to adjacent ground pins.
Antifuse FPGAs are one-time programmable - there is no field reconfiguration. Budget physical devices for every design iteration, lock the pin assignment early (moving I/O after board layout is impossible without new silicon), and complete worst-case timing sign-off in Libero at the -2 speed grade before committing a programming file. Also plan lifecycle risk: this is a legacy part; qualify the pin-compatible A54SX32-2TQG176I as a second source on the same footprint.
The 176-TQFP (24x24 mm, 0.5 mm pitch) requires a standard TQFP-176 land pattern with approximately 0.25 mm-wide pads; verify against the Microchip package drawing before release. For 320 MHz-class internal operation, keep clock traces short and guarded, use a solid ground plane on layer 2, and terminate long 5V I/O stubs to control ringing. Thermal load is low for typical gate utilization, so board-level heatsinking is normally unnecessary, but confirm against your switching activity estimate.
Compliance Information
Compliance data was not present in the verified web data for this legacy part; confirm RoHS/REACH status with Microchip before procurement.
