A54SX32-2PQG208I - 48K Gate SX FPGA 208-QFP | Microchip
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Drop-in alternatives for A54SX32-2PQG208I — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX32-1PQG208I
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View Datasheet →A54SX16P-2PQG208I
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View Datasheet →A54SX32-2PQG208I Maximum Ratings & Electrical Characteristics
| Logic Family | Actel SX (54SX) |
| System Gates | 48000 |
| Logic Modules | 1800 |
| Number of User I/O | 174 |
| Maximum System Frequency | 320 MHz |
| Process Technology | 0.35 um antifuse |
| Core Supply Voltage | 3.3 V / 5 V |
| Program Type | One-Time Programmable (antifuse) |
| Speed Grade | -2 |
| Temperature Range | -40C to +85C (Industrial) |
| Package | 208-pin PQFP (PQG208 / 208-BFQFP) |
| Mounting Type | Surface Mount |
| Architecture | Sea-of-modules (RX and R modules) |
| Configuration | Non-volatile, no configuration PROM required |
| Development Software | Microchip Libero SoC |
A54SX32-2PQG208I 208-pin pqfp (pqg208 / 208-bfqfp) Pin Configuration Guide
Complete pinout information for A54SX32-2PQG208I (208-pin pqfp (pqg208 / 208-bfqfp) 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 A54SX32-2PQG208I.
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
A54SX32-2PQG208I is suitable for 6 applications: Industrial Control and Automation, Telecommunications Line-Card Interface Logic, Defense and Avionics Subsystems, Legacy ASIC Replacement and Prototyping, Test and Measurement Instrument Logic, Security and Surveillance Systems.
Industrial Control and Automation
The A54SX32-2PQG208I consolidates PLC I/O decoding, interlock logic, encoder interfaces, and sequencer state machines into one OTP device. Its 174 user I/Os absorb the many discrete and parallel signals typical of factory automation backplanes, while the -2 speed grade supports up to 320 MHz internal decode paths, far exceeding the tens-of-MHz needs of control logic with generous timing margin. The industrial temperature rating of -40C to +85C suits unheated cabinets and outdoor drives. Because the antifuse fabric is non-volatile, logic is active the instant 3.3 V or 5 V is applied - no configuration controller or PROM is needed - improving fault recovery after power dips on noisy plant floors.
Recommended
Telecommunications Line-Card Interface Logic
Telecom line cards require dense glue logic bridging backplane buses to framer and transceiver devices. The A54SX32-2PQG208I provides 48K gates of address decoding, bus formatting, and interrupt aggregation with predictable, routing-independent timing thanks to the sea-of-modules architecture - a key benefit when timing budgets are set by backplane specifications. Dual 3.3 V/5 V I/O compatibility lets it interface directly with legacy 5 V TTL line-card components while running core logic at 3.3 V. The 208-pin PQFP supports 0.5 mm pitch assembly on standard card processes, and OTP programming eliminates configuration-download failures that can strand a channel card offline.
Recommended
Defense and Avionics Subsystems
Defense programs value the A54SX32-2PQG208I because its antifuse interconnect cannot be read back or altered in the field, providing hardware-level design security unavailable in SRAM FPGAs. Instant-on operation simplifies power sequencing in avionics racks where configuration time is added to boot-critical paths. The industrial temperature range covers many sheltered and uncooled avionics enclosures from -40C to +85C. Designs must accept the industrial qualification grade; for radiation-tolerant space applications, Microchip's RTAX families are the specified path. Typical uses include bus bridges for MIL-STD-style interfaces, discrete-to-digital conversion, and safe-and-arm logic consolidation.
Recommended
Legacy ASIC Replacement and Prototyping
The SX family's gate-array-like sea-of-modules architecture made it a common target for converting masked gate-array or small ASIC designs to programmable silicon. The A54SX32-2PQG208I's 48K-gate density with 1800 modules maps well to mid-size glueless integration projects, and the 208-pin PQFP replaces ceramic QFP ASIC packages on legacy footprints with careful pin-mapping. Because timing is deterministic and does not vary with software-tool versions the way SRAM FPGA timing can, converted designs hold timing over production lifetime. Designers should complete full HDL simulation and static timing closure in Libero SoC before committing, since antifuse parts are one-time programmable.
Recommended
Test and Measurement Instrument Logic
Instrument builders use the A54SX32-2PQG208I for trigger logic, counter/timer channels, and parallel bus interfacing where deterministic propagation delay matters more than raw gate count. The -2 speed grade's 320 MHz capability supports fast trigger comparators and time-to-digital front ends, while the 174 I/Os interface parallel measurement buses and relay-control arrays. Instant-on antifuse configuration means the instrument is logic-ready before the host CPU completes boot, enabling hardware self-test at power-up. The 208-pin PQFP's conventional surface-mount construction simplifies service and board-level repair compared with BGA packages, supporting long service-life commitments in laboratory equipment.
Recommended
Security and Surveillance Systems
Surveillance and access-control hardware benefits from the A54SX32-2PQG208I's tamper-resistant OTP fabric, which holds door-control sequencing, sensor-bus arbitration, and video-switch glue logic without any externally readable bitstream. The industrial temperature range supports outdoor camera enclosures and unconditioned gate controllers from -40C to +85C. With 174 user I/Os, one device terminates multiple RS-style discrete sensor loops and parallel alarm buses, and 3.3 V/5 V I/O tolerance bridges older 5 V sensor electronics to modern 3.3 V controllers. Non-volatile instant-on operation keeps security logic enforcing policy immediately after power restoration following outages.
Recommended
Recommended Products Summary
Engineering reference data for A54SX32-2PQG208I — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX32-1PQG208I | A54SX32-PQG208I | A54SX32-2PQG208 | A54SX16P-2PQG208I |
|---|---|---|---|---|---|
| Package | 208-pin PQFP (PQG208) | 208-pin PQFP - same | 208-pin PQFP - same | 208-pin PQFP - same | 208-pin PQFP - same |
| Brand | Microchip Technology (Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 48 K | 48 K | 48 K | 48 K | Lower (SX16P die) |
| User I/O | 174 | 174 | 174 | 174 | [DATA_NEEDED] |
| Speed Grade | -2 (up to 320 MHz) | -1 | Standard | -2 | -2 |
| Temperature Range | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | 0C to +70C (Commercial) | -40C to +85C |
| Supply Voltage | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V |
| Program Technology | Antifuse OTP (0.35 um) | Antifuse OTP | Antifuse OTP | Antifuse OTP | Antifuse OTP (SX16P flash-based P variant) |
Key Differentiators
- Fastest industrial-temperature grade in the 208-pin PQFP footprint (vs A54SX32-PQG208I)
- Industrial temperature rating for field deployments (vs A54SX32-2PQG208)
- Full 48K-gate density on the shared footprint (vs A54SX16P-2PQG208I)
Design Notes
Decouple both VCC and the programming-related supply pins per the 54SX datasheet power recommendations: place 0.1 uF ceramic capacitors at each VCC/VDDA pin pair plus bulk 10 uF local to the device. The SX family supports both 3.3 V and 5 V I/O operation; set I/O banks to match legacy 5 V TTL peripherals only if all connected devices are 5 V tolerant. Power-up sequence matters less than for SRAM FPGAs (no configuration fetch), but hold VPP-related pins at their datasheet-specified levels - do not repurpose them as user I/O.
The 208-pin PQFP uses a 0.5 mm pin pitch; route fanout breakout with 4-5 mil trace/space on the outer layers and use dogbone or via-in-pad escapes on inner rows. Allocate a solid ground plane under the device to control return paths for the up-to-320 MHz internal switching. Because QFP leads are susceptible to solder bridging during reflow, inspect with 10x magnification or AXI. Follow the JEDEC-style PQFP land pattern in the Microchip package drawing rather than scaling footprint coordinates.
The A54SX32-2PQG208I is one-time programmable: a design bug discovered after programming cannot be patched - you consume another device. Budget 5-10% attrition in production planning and burn in a verification bitstream on engineering builds. Also avoid confusing part variants when ordering: -2 vs -1 changes timing models, and the missing I suffix means commercial temperature only. Finally, re-run static timing analysis whenever you substitute a different speed grade; passing -2 timing does not guarantee passing -1 timing.
Compliance Information
Compliance data not stated in the provided web data; verify RoHS/REACH status on the official Microchip product page for A54SX32 before procurement.
