A54SX72A-PQG208M - 108K-Gate Antifuse FPGA 217MHz | Microchip
MPN： A54SX72A-PQG208M ✓ 啟用中A54SX72A-PQG208M 概覽
A field-programmable gate array (FPGA) is a semiconductor device containing a matrix of configurable logic blocks and programmable interconnects that designers program to implement custom digital circuits. The A54SX72A belongs to the antifuse FPGA subcategory: unlike SRAM-based FPGAs, its antifuse interconnect elements are one-time programmable, so the configuration is permanent, inherently non-volatile, and immune to configuration readback - a hardware security advantage for defense and industrial designs.
Key features include the 108K system gate capacity for integrating multiple logic functions into a single low-cost chip, the 217 MHz system speed supported by dedicated global and quadrant clock networks (CLKA, CLKB, QCLK), and the antifuse architecture which removes the need for an external configuration PROM and eliminates configuration bitstream loading time at power-up.
Technically, the SX-A family uses a sea-of-modules architecture with combinational C-cells and sequential R-cells, implemented in a 0.25 um CMOS process. The device is designed in using Microchip's Libero SoC design suite (historically Actel Designer flow) and programmed at the board house or by the user with standard programming hardware.
Typical applications include industrial control, networking line cards, glue logic integration,ASIC prototyping, and secure military/avionics systems where a non-volatile, single-chip programmable solution reduces BOM cost and board area.
When designing with this device, remember the antifuse is one-time programmable - verify the design thoroughly in simulation before programming, and check that 2.5 V core and I/O voltage rails are properly sequenced.
This page synthesizes verified distributor data, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet. Pricing as of 2026-09-03.
直接替換替代品，適用於 A54SX72A-PQG208M — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： A54SX72A-PQG208M （相同外形與佔位） — 差異在於 Package, Clock Networks, System Gates, Process Technology, Programming Technology.
A54SX72A-PQG208A
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查看資料表 →A54SX72A-2PQG208
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查看資料表 →A54SX72A-1PQG208M
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查看資料表 →A54SX32A-PQG208M
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查看資料表 →A54SX72A-PQG208M 最大額定值與電氣特性
| Family | SX-A (Antifuse FPGA) |
| System Gates | 108000 |
| ASIC Gates | 72000 |
| Module Cells / Registers | 4024 |
| User I/O | 171 |
| Maximum Frequency | 217 MHz |
| Supply Voltage (Core) | 2.5 V |
| Process Technology | 0.25 um CMOS |
| Programming Technology | Antifuse (one-time programmable) |
| 封裝 | 208-pin PQFP (BFQFP), 28 mm x 28 mm x 3.4 mm |
| 安裝類型 | Surface Mount |
| Packaging | Tray |
| Clock Networks | CLKA, CLKB, QCLK (global and quadrant clocks) |
A54SX72A-PQG208M 208-pin pqfp (bfqfp), 28 mm x 28 mm x 3.4 mm 腳位配置指南
A54SX72A-PQG208M（208-pin pqfp (bfqfp), 28 mm x 28 mm x 3.4 mm 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： A54SX72A-PQG208M.
請參閱 資料表 以查看完整腳位配置。
典型應用
A54SX72A-PQG208M 適用於 6 應用s: Industrial Control and Automation, Secure Military and Avionics Systems, Networking and Communications Line Cards, ASIC Prototyping and Emulation, Glue Logic Integration and Board Cost Reduction, Test and Measurement Instrumentation.
Industrial Control and Automation
The A54SX72A-PQG208M fits industrial control and factory automation designs that need deterministic, instant-on logic with no configuration boot delay. Its 108,000 system gates and 171 user I/Os are sufficient to integrate PLC sequencing logic, motor control state machines, and sensor interface glue logic into one 2.5 V antifuse device, replacing several discrete chips and cutting BOM cost. Because the antifuse configuration is non-volatile and permanent, the FPGA begins operating within microseconds of power application - a key advantage over SRAM FPGAs that must load a bitstream from external flash. Designers typically clock it from the global CLKA/CLKB networks at rates up to 217 MHz, far above industrial sequencing requirements, leaving timing margin for I/O-heavy designs.
推薦
Secure Military and Avionics Systems
Antifuse FPGAs are a natural fit for defense and avionics platforms where configuration security matters. The A54SX72A-PQG208M's one-time-programmable interconnect cannot be read back or modified after programming, eliminating the bitstream-extraction and live-configuration-attack surface inherent to SRAM FPGAs. With 108K system gates, it handles mission computer glue logic, bus interface bridging, and telemetry encoding at up to 217 MHz. The device draws no configuration power-up current spike because there is no bitstream load, simplifying power supply design in constrained avionics rails. For extended-temperature airframe environments, the pin-compatible A54SX72A-1PQG208I industrial-grade variant can be substituted without PCB change, and the design flow remains within Microchip Libero so one codebase serves both grades.
推薦
Networking and Communications Line Cards
The 217 MHz maximum toggle rate and quadrant clock (QCLK) architecture make the A54SX72A-PQG208M suitable for legacy networking line-card logic: address decoding, backplane interface bridging, framing, and error-checking state machines. Its 171 user I/Os support wide parallel data buses across a backplane, and the 2.5 V core with antifuse interconnect provides predictable, low-jitter timing that helps meet interface setup-and-hold budgets. On a single 28 mm x 28 mm PQFP footprint it replaces multiple PAL/GAL and discrete glue devices, reducing board area and component count. Because configuration is permanent, line cards power up ready to pass traffic with zero image-load latency - useful in redundant telecom systems where failover time is specified in milliseconds.
推薦
ASIC Prototyping and Emulation
Design teams use the A54SX72A-PQG208M to prototype and emulate medium-size ASIC and gate-array functions before committing to mask production. Its 72,000 ASIC-gate capacity matches many control and interface blocks, and because the antifuse array behaves deterministically after programming, timing measurements taken on the FPGA correlate closely to final logic behavior for the same netlist. Designers compile the RTL in Microchip Libero, iterate in simulation, then program engineering lots through the tray-packaged parts. The 171 I/Os allow direct attachment of logic analyzers and stimulus hardware for verification. Multiple boards can be daisy-chained to partition larger ASICs across several devices, with global CLKA/CLKB clocks distributing a common verification clock across partitions.
推薦
Glue Logic Integration and Board Cost Reduction
A primary commercial motivation for the SX-A family is single-chip integration of mixed glue logic. The A54SX72A-PQG208M consolidates address decoders, bus transceivers, interrupt controllers, and handshaking state machines that would otherwise occupy dozens of 7400-series devices, reducing board area, assembly cost, and inventory complexity. At 108K system gates there is ample headroom for consolidation plus future fixes routed as spare gates. The antifuse fabric's low static power suits always-on equipment, and instant-on operation removes complex power-up sequencing that SRAM FPGAs require. The 2.5 V core suits modern low-voltage boards while I/O buffers interface to legacy 3.3 V logic domains within datasheet limits, making the part a practical bridge between old and new board generations.
推薦
Test and Measurement Instrumentation
Bench and automated test equipment benefits from the A54SX72A-PQG208M's deterministic timing and instant-on behavior. Its 217 MHz capability supports counter/timer channels, pattern generators, and trigger state machines, while 171 I/Os connect directly to DUT fixtures through level shifters. Because the antifuse configuration cannot be disturbed by noise or radiation-induced configuration upsets, instruments power up with identical, repeatable behavior run after run - important for calibration traceability. Designers use the global CLKA/CLKB networks to derive precision measurement clocks from a single reference input. The 2.5 V core supply keeps internal power dissipation moderate even at full toggle rates, simplifying thermal design inside sealed instrument enclosures with passive cooling.
推薦
推薦產品摘要
工程參考資料，適用於 A54SX72A-PQG208M — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | A54SX72A-PQG208A | A54SX72A-1PQG208I | A54SX72A-FPQG208 | A54SX72A-2PQG208 | A54SX32A-PQG208M |
|---|---|---|---|---|---|---|
| Package | 208-PQFP (28x28 mm) | 208-PQFP - same | 208-PQFP - same | 208-PQFP - same | 208-PQFP - same | 208-PQFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 108000 | 108000 | 108000 | 108000 | 108000 | Lower (SX32A density) |
| Maximum Frequency | 217 MHz | 217 MHz | 217 MHz (family max) | 217 MHz | 217 MHz (-2 speed grade) | 217 MHz |
| Core Supply Voltage | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V |
| Speed Grade | Standard | Standard (A grade) | -1 | Standard (F grade) | -2 (faster) | Standard |
主要差異化特點
- Non-volatile antifuse configuration with zero boot latency (對比A54SX32A-PQG208M)
- Faster speed grade option in the identical footprint (對比A54SX72A-PQG208A)
- Industrial temperature availability without redesign (對比A54SX72A-1PQG208I)
設計說明
The A54SX72A core operates at 2.5 V; supply it with a clean LDO or buck output and decouple each VCC pin pair with 0.1 uF ceramic capacitors placed within 2 mm of the pin, plus bulk 10 uF per rail quadrant. Verify I/O bank voltage domains before assigning pins - SX-A I/O configurations tie groups of pins to shared supply rails, so mixing voltage standards on one bank will fail DRC in Libero. Estimated power: at moderate utilization the antifuse fabric draws far less static current than SRAM FPGAs, but dynamic power scales with toggle rate; budget power using Libero's power calculator before finalizing the regulator.
Antifuse devices are one-time programmable - there is no rework path after programming. Always complete full gate-level simulation and timing analysis in Libero before submitting devices for programming, and program one pilot unit to validate on hardware before committing the whole lot. A second frequent pitfall: assigning clocks to ordinary I/O instead of the dedicated CLKA/CLKB/QCLK global networks causes large clock skew; per the SX-A datasheet, use the quadrant clock resources described in Microchip's quadrant clock application notes for any clock above roughly 50 MHz.
The 208-PQFP has a 0.5 mm pin pitch with gull-wing leads; specify a solder-mask-defined footprint per the mechanical drawing in the SX-A datasheet with approximately 0.3 mm-wide pads and 1.5 mm center-to-center row spacing. Use no-clean or water-wash flux processes compatible with fine pitch, and inspect with 10x magnification or X-ray for bridging on the inner rows, which are hard to rework. The package body is 28 mm x 28 mm x 3.4 mm - allow clearance for the lead tips which extend beyond the body outline.
With 171 I/Os in a PQFP, simultaneously switching output (SSO) noise is the main signal-integrity risk. Limit the number of outputs switching in the same bank on the same edge, and add 22-33 ohm series termination on fast edges driving long bus traces. Ground every GND pin - never treat ground pins as spares - and distribute ground return paths under each bus group. For clock inputs, route CLKA/CLKB as short as possible with a series termination to damp ringing before the global clock buffer amplifies it across the die.
合規資訊
Compliance attributes could not be confirmed from the verified web data retrieved for this page; verify RoHS/lead-free status on the Microchip product page or the DigiKey listing (part 4294530) for the exact ordering code before BOM commitment.
