A54SX16A-1PQG208M - 24K Gate Antifuse FPGA 208-PQFP | Microchip
MPN: A54SX16A-1PQG208M ✓ Active| Qty | Unit Price | Extended |
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Drop-in alternatives for A54SX16A-1PQG208M — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX16A-PQG208M
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$451.23 / Unit
View Datasheet →A54SX16A-2PQG208
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View Datasheet →A54SX16A-1PQG208I
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A54SX16P-1PQG208M
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$28.5 / Unit
View Datasheet →A54SX32A-1PQG208I
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View Datasheet →A54SX32A-1PQG208M
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View Datasheet →A54SX16A-1PQG208M Maximum Ratings & Electrical Characteristics
| Family | SX-A (Antifuse FPGA) |
| System Gates | 24,000 gates |
| Typical Gates | 16,000 gates |
| Logic Cells (Modules) | 924 cells |
| User I/O | 175 |
| Speed Grade | -1 |
| Core Supply Voltage | 2.5 V |
| I/O Voltage Support | 2.5 V, 3.3 V, 5 V |
| Process Technology | 0.22 um / 0.25 um CMOS antifuse |
| Programming Type | One-time programmable (OTP) antifuse |
| Maximum Toggle Rate | 263 MHz |
| Package | 208-pin BFQFP (PQFP), 28x28 mm class body |
| Mounting Type | Surface Mount |
| Lead Finish | Lead free (G suffix) |
| RoHS Status | Compliant (lead-free per distributor listing) |
A54SX16A-1PQG208M 208-pin bfqfp (pqfp), 28x28 mm class body Pin Configuration Guide
Complete pinout information for A54SX16A-1PQG208M (208-pin bfqfp (pqfp), 28x28 mm class body 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 A54SX16A-1PQG208M.
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
A54SX16A-1PQG208M is suitable for 6 applications: Industrial Control and Automation, Telecommunications and Networking Line Cards, Aerospace and Defense Secure Logic, Microprocessor Board Glue Logic, Medical Instrumentation Control Interface, Test and Measurement Equipment.
Industrial Control and Automation
The A54SX16A-1PQG208M consolidates address decoding, bus interfacing, sequencers, and discrete control logic in factory automation and process-control equipment. Its 24K system gates and 175 user I/Os give enough capacity to replace dozens of 74-series devices, cutting board area and BOM count, while its support for 5 V, 3.3 V, and 2.5 V I/O signalling lets it bridge legacy 5 V PLC signals to modern 3.3 V microcontroller buses without level translators. Because the antifuse fabric is non-volatile, control logic is active the instant 2.5 V core power appears, eliminating FPGA configuration delay at machine power-up. Static power is very low, so it suits fanless cabinets where thermal budget is limited. Program once during production; the one-time-programmable fabric also prevents field tampering with control logic.
Recommended
Telecommunications and Networking Line Cards
In telecom and networking equipment, the A54SX16A-1PQG208M implements framing logic, backplane bus bridges, status aggregation, and clock-domain glue functions on line cards. The -1 speed grade fabric supports clock rates in the tens to low hundreds of megahertz (family toggle capability up to 263 MHz), sufficient for many T1/E1, backplane, and management-bus tasks. Its 5 V tolerant-capable I/O family (2.5/3.3/5 V support) interfaces directly with legacy telecom rails common in NEBS-style shelves. The antifuse architecture's deterministic power-up behavior matters in systems where traffic must resume instantly after power events, and its low static power contributes to the tight power-per-slot budgets of high-density shelves. The 208-PQFP offers 175 I/Os for wide parallel backplanes.
Recommended
Aerospace and Defense Secure Logic
Antifuse FPGAs like the A54SX16A are a classic choice for defense and aerospace designs because the programming data physically resides in antifuse links that cannot be read back as a bitstream, providing inherent design-security against reverse engineering. The A54SX16A-1PQG208M's one-time programmability also means there is no configuration upset from single-event effects on a configuration memory, an important radiation-tolerant design pattern (space flight versions of Actel families are derived from the same architecture). With 24K gates and 175 I/Os, it implements telemetry encoding, actuator control sequencing, and bus interfaces. Designers should perform full simulation before programming since no rework is possible, and follow Microchip programming-house flow for OTS devices in high-reliability programs.
Recommended
Microprocessor Board Glue Logic
Embedded CPU boards frequently need chip-select generation, wait-state logic, interrupt controllers, and bus transceiving around a processor. The A54SX16A-1PQG208M absorbs all of this into one 208-pin device, replacing legacy PAL/GAL/PLD clusters that are increasingly unavailable. The SX-A architecture's flip-flop-rich R-cells handle state machines for bus handshaking at processor clock rates, while 2.5/3.3/5 V I/O support matches mixed-rail boards spanning old 5 V peripherals and new 3.3 V SoCs. Non-volatile antifuse configuration means the FPGA is ready before the CPU comes out of reset, avoiding the boot-order problems SRAM FPGAs create. One-time programming is acceptable here because glue-logic images are frozen at board release.
Recommended
Medical Instrumentation Control Interface
Diagnostic and monitoring instruments use the A54SX16A-1PQG208M to sequence front-end acquisition hardware, generate timing strobes for sensors, and consolidate control-panel interfaces. The device's low static power supports benchtop and portable instruments with modest thermal budgets, and its 175 I/Os accommodate wide parallel sensor buses, display drivers, and actuator controls on one device. Antifuse determinism guarantees identical power-up state on every instrument unit, simplifying regulatory validation where repeatable startup behavior must be documented. Since the logic image is fixed in manufacturing, the design is immune to accidental field reconfiguration, a reliability plus for devices intended to operate unattended in clinics. Pair with precision analog front-ends for acquisition chains.
Recommended
Test and Measurement Equipment
Bench instruments and automated-test fixtures employ the A54SX16A-1PQG208M as a timing generator, relay-matrix controller, and host-interface bridge. The SX-A fabric's up to 263 MHz toggle capability and deterministic antifuse routing deliver repeatable edge timing across units, which matters when instruments are calibrated individually. The 208-PQFP's 175 I/Os drive large relay or multiplexer matrices directly through appropriate drivers, and the 5 V tolerant I/O support eases integration with legacy rack hardware. Because test equipment firmware images rarely change after release, the one-time-programmable model carries no practical penalty, and it eliminates the configuration-storage failure mode. Low static current also helps battery-backed and always-on measurement subsystems.
Recommended
Recommended Products Summary
Engineering reference data for A54SX16A-1PQG208M — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX16A-PQG208M | A54SX16A-2PQG208 | A54SX16A-1PQG208I | A54SX32A-1PQG208I |
|---|---|---|---|---|---|
| Package | 208-PQFP (BFQFP) | 208-PQFP (BFQFP) - same | 208-PQFP (BFQFP) - same | 208-PQFP (BFQFP) - same | 208-PQFP (BFQFP) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 24,000 | 24,000 | 24,000 | 24,000 | 32,000-class (higher) |
| User I/O | 175 | 175 | 175 | 175 | [DATA_NEEDED] |
| Speed Grade | -1 | -1 class | -2 (faster) | -1 | -1 |
| Temperature Range | Commercial (M suffix) | [DATA_NEEDED] | [DATA_NEEDED] | Industrial (-40 to +85 C class) | Industrial |
| Lead Finish | Lead free (G) | Original (non-G, leaded) | Lead free (G) | Lead free (G) | Lead free (G) |
| Programming | One-time programmable antifuse | OTP antifuse | OTP antifuse | OTP antifuse | OTP antifuse |
| Recompilation Required for Migration | N/A | No (same die) | No (same die, faster bin) | No (same die, temp variant) | Yes (different density) |
Key Differentiators
- Non-volatile instant-on configuration (vs SRAM FPGAs (e.g., Xilinx XC4000-class))
- Inherent design security (vs A54SX16A-PQG208M vs SRAM-based competitors)
- Lead-free finish at identical footprint (vs A54SX16A-PQG208M)
- Faster speed bin available in same footprint (vs A54SX16A-2PQG208)
Design Notes
The A54SX16A is one-time programmable: once antifuses are blown, the device cannot be erased or reprogrammed. Complete gate-level simulation, timing closure, and (ideally) prototype validation using the same design flow (Microchip Libero/Designer) before submitting the fuse map to programming. Order engineering lots and verify on real hardware before releasing production programming files. Assign unused I/Os per datasheet guidance to avoid floating inputs, and confirm VPP programming pins are accessible on the PCB or via a programming header if in-system programming is planned.
Power the 2.5 V core rail and the selected I/O bank rails (2.5 V, 3.3 V, or 5 V per bank assignment) separately with local 0.1 uF ceramic decoupling at each supply pin pair, plus bulk 10 uF near the device. Because antifuse FPGAs draw negligible static current, dynamic power dominates: use the Microchip power calculator with your actual toggle rates (up to 263 MHz capability) rather than worst-case data-sheet numbers to size the regulator. Do not connect VPP during normal operation; it is used only in the programming step.
The 208-PQFP has 0.5 mm fine pitch leads: specify a 0.2 mm-width stencil aperture for solder paste and use OSP or ENIG finish for reliable gulling. Route a solid ground plane under the device and keep high-fanout clock nets short; SX-A timing is fixed after routing, so lock critical clock placement in the design tool. For mixed 5 V/3.3 V systems, verify each bank's voltage assignment against the pinout tables in the SX-A datasheet before layout, because bank voltage compliance is per-pin-group, not per-device.
Compliance Information
Lead-free status per distributor listing (PCB Electronics: LEAD FREE) and G-suffix package code. Full REACH, halogen-free, and conflict-minerals declarations should be obtained from Microchip product environmental compliance documents.
