A54SX16-1PQG208I - 24K Gate FPGA 175 I/O | Microchip Technology
MPN: A54SX16-1PQG208I ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $62.5 | $62.50 |
| 10 | $56.25 | $562.50 |
| 100 | $49.8 | $4,980.00 |
| 500 | $44.6 | $22,300.00 |
| 1,000 | $39.9 | $39,900.00 |
Drop-in alternatives for A54SX16-1PQG208I — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX16P-1PQG208I
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View Datasheet →A54SX16-2PQG208I
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View Datasheet →A54SX16P-PQG208I
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View Datasheet →A54SX16P-1PQG208
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View Datasheet →A54SX16-1PQG208
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View Datasheet →A54SX32-1PQG208I
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$44.9 / Unit
View Datasheet →A54SX16-1PQG208I Maximum Ratings & Electrical Characteristics
| Family | SX (Actel/Microsemi) |
| System Gates | 24000 gates |
| Logic Cells / Modules | 924 cells |
| Logic Array Blocks (LABs) | 1452 |
| Programmable I/O | 175 |
| Internal Performance | up to 280 MHz |
| Clock-to-Out (Pin-to-Pin) | 3.7 ns |
| Input Set-Up | 0.1 ns |
| Clock Skew | 0.25 ns |
| Supply Voltage | 3.3 V (5.0 V tolerant I/O) |
| Process Technology | 0.35 um |
| Programming Technology | Antifuse (one-time programmable) |
| Speed Grade | -1 |
| Operating Temperature | -40C to +85C |
| Package | 208-BFQFP (PQG208) |
| Mounting Type | Surface Mount |
A54SX16-1PQG208I 208-bfqfp (pqg208) Pin Configuration Guide
Complete pinout information for A54SX16-1PQG208I (208-bfqfp (pqg208) 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 A54SX16-1PQG208I.
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
A54SX16-1PQG208I is suitable for 6 applications: 66 MHz PCI Interface Integration, Industrial Control and Automation, Aerospace and Defense Subsystems, Communications and Networking Equipment, Glue Logic Consolidation and Board Redesign, Secure Embedded Controllers.
66 MHz PCI Interface Integration
The A54SX16-1PQG208I directly targets 66 MHz PCI compliance as a single-chip solution, per the SX family datasheet. Its 3.7 ns pin-to-pin clock-to-output, 0.1 ns input setup, and 0.25 ns clock skew provide the deterministic timing margins required for PCI load-and-hold analysis at 66 MHz, while 100% resource utilization with 100% pin locking lets designers fully pack the 24K gates without losing routing flexibility. Used as a PCI bridge or host interface between a host processor and application-specific logic, the antifuse device powers up instantly with no configuration device and offers 3.3V operation with 5V-tolerant I/O for mixed-voltage backplanes. Verify timing with the -2 speed grade if your worst-case PCI setup analysis leaves under 1 ns margin.
Recommended
Industrial Control and Automation
In factory automation, motor-control sequencing, and PLC I/O subsystems, the A54SX16-1PQG208I consolidates glue logic, state machines, and interface bridges into one 24,000-gate antifuse FPGA, replacing multiple discrete CPLDs and TTL devices on a single 208-pin QFP footprint. The industrial -40C to +85C rating matches unconditioned cabinet environments, and 3.3V single-supply operation with 5V-tolerant I/O interfaces directly with legacy 5V sensors and modern 3.3V controllers. Because the configuration is nonvolatile antifuse, boards boot instantly after power interruption - critical for equipment without configuration controllers. Estimated benefit: replacing 5-10 SSI/MSI devices cuts board area and inventory while the read-back-protected bitstream prevents field copying of proprietary control algorithms.
Recommended
Aerospace and Defense Subsystems
The SX family's sea-of-modules antifuse architecture is widely deployed in defense electronics for command decoding, interface conversion, and telemetry formatting, where one-time programmability, instant-on startup, and immunity to configuration upsets are valued. The A54SX16-1PQG208I provides 24K system gates and 175 I/O with deterministic routing delays that simplify worst-case timing sign-off for military qualification documentation. Its read-back-protected antifuse configuration secures proprietary or classified bitstreams - unlike SRAM FPGAs whose configuration stream is exposed at boot. For space-level programs needing radiation tolerance, migrate within the same Actel ecosystem to the RTAX family (e.g., RTAX250SL-CQ208V) using similar design methodology, though package and pinout verification is required before board reuse.
Recommended
Communications and Networking Equipment
Telecom line cards, protocol converters, and backplane adapters use the A54SX16-1PQG208I for framing logic, elastic buffers, and bus bridging between processors and PHY devices. The 280 MHz internal performance headroom handles multi-channel serial interfaces, while 0.25 ns clock skew supports synchronous parallel data capture across wide buses. The device's 175 programmable I/O cover 8/16/32-bit data paths plus control in one package, and its low static power suits always-on network infrastructure. Because the design is locked in antifuse, delivered systems exhibit fixed timing behavior across the entire production fleet - an advantage for carrier equipment requiring repeatable bit-error performance. Estimated benefit: single-chip integration of a CPLD plus several bus transceiver support functions reduces per-card BOM cost.
Recommended
Glue Logic Consolidation and Board Redesign
Legacy boards carrying random logic - address decoders, interrupt controllers, wait-state generators, and bus formatters - can be consolidated into one A54SX16-1PQG208I with 100% resource utilization enabled by the SX architecture's high module efficiency. The 208-pin QFP provides abundant I/O (175 user pins) for replacing multi-device bus connections, and 3.3V/5V-tolerant I/O bridges legacy TTL islands to modern controllers. Consolidation shrinks PCB area, cuts assembly cost, and improves reliability by reducing solder-joint count. Because antifuse programming is permanent, complete the redesign in the Actel Libero/Designer flow with full simulation before committing production devices. The same footprint accommodates the A54SX32 upward migration if the consolidated design grows beyond 24K gates.
Recommended
Secure Embedded Controllers
Applications requiring design secrecy - licensed equipment, encrypted peripheral controllers, anti-cloning protection - benefit from the A54SX16-1PQG208I's antifuse configuration, which cannot be read back after programming, unlike SRAM FPGA bitstreams that traverse the boot bus. The 24K gate capacity implements state machines, authentication logic, and custom bus interfaces, while instant-on startup eliminates the configuration window that attackers can exploit on SRAM devices. Industrial -40C to +85C operation supports outdoor and unconditioned deployments. Design consideration: because the antifuse bitstream is burned in and irreversible, budget for programming yield and keep programmed spare inventory, and use the manufacturer's recommended programmer flow to minimize fuse-map errors in secure production.
Recommended
Recommended Products Summary
Engineering reference data for A54SX16-1PQG208I — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX16P-1PQG208I | A54SX16-2PQG208I | A54SX16-1PQG208 | A54SX32-1PQG208I |
|---|---|---|---|---|---|
| Package | 208-BFQFP (PQG208) | 208-BFQFP (PQG208) - same | 208-BFQFP (PQG208) - same | 208-BFQFP (PQG208) - same | 208-BFQFP (PQG208) - same |
| Brand | Microchip Technology (Microsemi/Actel) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 24,000 | 24,000 | 24,000 | 24,000 | 32,000 |
| Speed Grade | -1 (standard) | -1 | -2 (faster) | -1 | -1 |
| Programmable I/O | 175 | 175 | 175 | 175 | [DATA_NEEDED] |
| Power Variant | Standard SX16 | Low-power SX16P | Standard SX16 | Standard SX16 | Standard SX32 |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C | -40C to +85C | Commercial (0C to +70C) | -40C to +85C |
| Programming Technology | Antifuse OTP, 3.3 V | Antifuse OTP, 3.3 V | Antifuse OTP, 3.3 V | Antifuse OTP, 3.3 V | Antifuse OTP, 3.3 V |
Key Differentiators
- Nonvolatile antifuse with no configuration device (vs A54SX16-2PQG208I (SRAM-FPGA comparison baseline: typical SRAM devices))
- Deterministic timing for 66 MHz PCI single-chip solutions (vs A54SX16P-1PQG208I)
- Same-footprint upward migration to 32K gates (vs A54SX32-1PQG208I)
Design Notes
The A54SX16-1PQG208I is one-time programmable: the antifuse bitstream is burned in permanently and cannot be erased or updated. Lock your design in the Actel/Microchip Designer (Libero SoC) flow - complete functional simulation, timing verification against the -1 speed grade, and pin assignment freeze - before submitting devices for programming. Keep unprogrammed spare inventory if field changes are foreseeable, or migrate to the pin-compatible SX-A family for designs still in flux.
Supply the device from a clean 3.3 V rail; I/O are 5V tolerant, so no level shifting is needed when interfacing legacy 5V buses. Decouple each VCC/VSS pin pair of the 208-pin QFP with 0.1 uF ceramics placed within 2-3 mm of the pin, plus bulk 10 uF per rail quadrant. For thermally or battery-constrained systems, consider the A54SX16P-1PQG208I low-power variant, which drops static current while remaining footprint-compatible.
Use a dedicated ground plane under the 208-pin QFP with low-inductance via fan-out for all ground pins to keep the 0.25 ns clock-skew specification meaningful at the board level. Route 66 MHz PCI-class clocks with controlled impedance and length matching to the FPGA clock pin. Do not connect JTAG/programming pins to shared headers with other logic - keep the programming header isolated so the programmer can access the device without bus contention.
Compliance Information
The 'G' in PQG208 denotes the green/lead-free package suffix per Microchip/Microsemi ordering-code convention; explicit RoHS/REACH certification status should be confirmed on the Microchip product page.
