A54SX32-PQG208I - SX FPGA 48K Gates 174 I/O | Microchip
MPN： A54SX32-PQG208I ✓ 啟用中A54SX32-PQG208I 概覽
An FPGA (Field-Programmable Gate Array) is a semiconductor device containing a fabric of configurable logic blocks and interconnects that the designer programs after manufacturing. Within the programmable logic hierarchy, the A54SX32 sits at the device level under FPGA -> programmable logic -> digital logic IC. The SX family uses a sea-of-modules architecture built on a patented antifuse interconnect, which delivers ASIC-like routability and performance with no configuration storage element required.
Key features include one-time-programmable antifuse technology that eliminates the need for external boot flash and removes configuration-bitstream security concerns, sub-10 ns deterministic interconnect delays, 174 user-input/output pins on the 208-pin QFP body, and low static power consumption typical of antifuse CMOS fabric.
Technically, the device integrates combinational and sequential logic modules (the 1800-cell array) with dedicated clock resources, achieving deterministic, delay-predictable routing that SRAM FPGAs of the era could not match. The antifuse elements add near-zero capacitance to the routing network, which is the primary reason for the 240 MHz toggle capability at 0.35 um geometry.
Typical applications include industrial control and automation logic, glueless bus interfacing and bridge logic, telecommunications and data-communication line-card control, and military/avionic systems where instant-on and configuration-security properties of antifuse technology are valued.
A key design consideration is that antifuse FPGAs are one-time programmable: any functional change requires a new device, so reserve engineering margin in I/O count and module utilization before committing the design. Use Libero SoC (Designer) toolchain for place-and-route and timing sign-off.
This page synthesizes verified distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
直接替換替代品，適用於 A54SX32-PQG208I — 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： A54SX32-PQG208I （相同外形與佔位） — 差異在於 Package, Family, System Gates, Operating Temperature, Architecture.
A54SX32-1PQG208I
✅ 直接替換聯絡詢價
查看資料表 →A54SX32-2PQG208
✅ 直接替換聯絡詢價
查看資料表 →A54SX32-2PQ208I
✅ 直接替換聯絡詢價
查看資料表 →A54SX32A-PQG208I
✅ 直接替換📋 參考替代品（不在目錄中）
A54SX32A-1PQG208I
✅ 直接替換聯絡詢價
查看資料表 →A54SX32A-PQ208I
✅ 直接替換聯絡詢價
查看資料表 →A54SX32-PQG208I 最大額定值與電氣特性
| Logic Gates | 32000 gates (48K system gates) |
| Logic Modules (Cells) | 1800 |
| User I/O | 174 |
| Maximum System Frequency | 240 MHz |
| 供應電壓 | 3.3 V / 5 V |
| Process Technology | 0.35 um CMOS |
| Programmable Technology | Antifuse (one-time programmable) |
| Architecture | Sea-of-modules (Actel SX family) |
| 封裝 | 208-BFQFP (PQG208) |
| 安裝類型 | Surface Mount |
| 工作溫度 | -40C to +85C (industrial) |
| Family | SX (A54SX32) |
| Speed Grade | Standard (dash -) grade |
| RoHS 狀態 | Lead free / RoHS Compliant |
| Configuration | Non-volatile, no boot PROM required |
| Packaging | Tray |
A54SX32-PQG208I 208-bfqfp (pqg208) 腳位配置指南
A54SX32-PQG208I（208-bfqfp (pqg208) 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： A54SX32-PQG208I.
請參閱 資料表 以查看完整腳位配置。
典型應用
A54SX32-PQG208I 適用於 6 應用s: Industrial Control and Automation Logic, Telecommunications Line-Card Control, Avionics and Defense Embedded Control, Bus Interface and Glueless Bridge Logic, Test and Measurement Instrumentation, Secure Embedded Systems and IoT Gateways.
Industrial Control and Automation Logic
The A54SX32-PQG208I fits industrial control and factory automation systems where deterministic, glitch-free logic replaces multiple PAL/GAL devices and discrete glue logic. Its 32K gates and 1800 modules consolidate bus arbitration, I/O expansion decoding, and sequencer state machines into one -40C to +85C industrial-grade device. Because the antifuse fabric needs no boot flash, the PLC or motor-control card is functional within nanoseconds of power application, improving fault-recovery behavior in production lines. The 174 user I/Os on the 208-pin QFP directly interface 5V-tolerant industrial buses, and the low static power of 0.35 um antifuse CMOS reduces cabinet heat versus SRAM FPGAs of comparable density.
推薦
Telecommunications Line-Card Control
Telecom line cards benefit from the A54SX32-PQG208I's 240 MHz class performance and predictable, delay-deterministic routing for framer backplane interfaces, HDLC controllers, and hot-swap supervision logic. The sea-of-modules architecture delivers consistent interconnect delays regardless of utilization, simplifying timing closure at the 3.3V backplane signaling levels common in central-office equipment. The industrial temperature grade tolerates uncoiled equipment-room conditions, and the antifuse fabric's immunity to configuration upsets removes the configuration-corruption failure mode that SRAM FPGAs exhibit across years of continuous uptime, a critical reliability consideration for carrier-grade availability targets.
推薦
Avionics and Defense Embedded Control
Defense and avionics subsystems select the A54SX32-PQG208I for its inherent configuration security and instant-on behavior. The one-time-programmable antifuse bitstream cannot be dumped or reversed from a powered-off board, protecting proprietary control algorithms in munitions interfaces, radar timing generators, and secure telemetry encoders. The SX family's radiation tolerance heritage from Actel supports high-reliability programs, and for space-grade migration paths, Microchip's RTAX families extend the same antifuse philosophy. The industrial -40C to +85C rating covers most airborne equipment bays, while deterministic routing timing eases DO-254-style design verification of safety-critical logic paths.
推薦
Bus Interface and Glueless Bridge Logic
The A54SX32-PQG208I excels as bridge logic between incompatible buses - PCI-to-local-bus bridges, microprocessor bus expansion, and legacy-interface emulation. With 174 user I/Os, one device absorbs dozens of 74-series transceiver and decoder packages, cutting board area and assembly cost. The 3.3V/5V mixed capability lets a single device talk to both legacy 5V TTL backplanes and modern 3.3V processors without level-shifting circuitry. Designers should reserve at least 20% module headroom because the antifuse is one-time programmable: protocol updates after layout freeze require a new device, making early utilization planning the key trade-off in bridge-logic deployments.
推薦
Test and Measurement Instrumentation
Bench and automated test equipment uses the A54SX32-PQG208I for timing generators, pattern generators, and trigger-logic aggregation. The 240 MHz-class fabric and deterministic delays allow sub-nanosecond skew control across the 174 I/Os, which directly determines measurement timing accuracy in stimulu/response instruments. The antifuse fabric introduces no configuration load transient at power-up, so instruments present a stable high-impedance state within microseconds - useful when the FPGA powers a measurement front-end. Industrial grading covers bench environments, and the one-time-programmable model suits released instrument firmware baselines that require change-controlled, non-updatable logic revisions.
推薦
Secure Embedded Systems and IoT Gateways
Security-focused embedded designs leverage the A54SX32-PQG208I's non-readable antifuse configuration as a hardware root of trust for IoT gateways and industrial edge nodes. Unlike SRAM FPGAs whose bitstream travels over an external flash bus at every boot, the A54SX32 contains no extractable configuration image, eliminating a primary cloning attack vector. Its 48K system gates implement AES-class crypto cores, secure-boot checkers, and tamper-monitoring state machines alongside interface logic. Combined with a low-power supervisory MCU such as the MSP430FR5994, the gateway achieves instant-on secure operation with negligible standby current - a combination SRAM FPGA architectures cannot match without elaborate bitstream-encryption overhead.
推薦
推薦產品摘要
工程參考資料，適用於 A54SX32-PQG208I — 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 | A54SX32-1PQG208I | A54SX32-2PQG208 | A54SX32-2PQ208I | A54SX32A-PQG208I |
|---|---|---|---|---|---|
| Package | 208-BFQFP (PQG208) | 208-PQFP (PQG208) - same | 208-PQFP (PQG208) - same | 208-PQFP (PQ208) - same footprint | 208-PQFP (PQG208) - same |
| Brand | Microchip Technology (Microsemi/Actel) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Logic Gates | 32000 (48K system gates) | 32000 | 32000 | 32000 | 48000 (SX-A) |
| Logic Modules | 1800 | 1800 | 1800 | 1800 | 2880 |
| Supply Voltage | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 2.5 V |
| Process Technology | 0.35 um | 0.35 um | 0.35 um | 0.35 um | 0.25 um |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C | 0C to +70C (commercial) | -40C to +85C | -40C to +85C |
主要差異化特點
- Instant-on, non-volatile antifuse configuration (對比SRAM FPGAs (e.g., Xilinx Spartan of same era))
- Legacy 5V-tolerant I/O mixing (對比A54SX32A-PQG208I)
- Industrial temperature at standard grade (對比A54SX32-2PQG208)
- Lower module density than SX-A successor (對比A54SX32A-PQG208I)
設計說明
The A54SX32-PQG208I operates from 3.3V/5V supplies on 0.35 um antifuse CMOS. Decouple each VCC/VDDA pin pair with 0.1 uF ceramic capacitors placed within 5 mm of the pin, plus bulk 10 uF per supply domain. Because the antifuse fabric draws essentially no configuration current at power-up, inrush is dominated by I/O charging of board capacitance - size the supply rail for simultaneous switching output (SSO) currents when many of the 174 I/Os toggle in the same bank. Verify I/O bank current limits in the 54SX family datasheet before finalizing power distribution.
The antifuse fabric is one-time programmable: there is no erase or reconfiguration. Complete full post-layout timing simulation and hardware prototype validation on an engineering lot before production programming with Silicon Sculptor. Also confirm speed-grade ordering on your purchase order - A54SX32-PQG208I is the standard grade; the -1 and -2 suffixes denote faster timing that may be required if your design closes timing with less than 10% slack in the Libero timing report.
The 208-pin PQFP has 0.5 mm pitch gull-wing leads. Use a 0.2 mm wide stencil aperture with 5-6 mil paste for fine-pitch solder joints, and route the 174 user I/Os with controlled impedance on high-speed nets. Provide a solid ground plane under the device and keep clock distribution traces short with series termination near the driver. QFP lead coplanarity should be verified on receipt since mature-package lots may have been in storage - bake per JEDEC J-STD-033 if moisture indicators show exposure.
Estimated: an SX-class device at typical industrial logic utilization dissipates on the order of hundreds of milliwatts, far below the PQFP-208 free-air capability, so no heatsink is normally required. However, exact power depends on switching activity and I/O loading; compute junction temperature as TA + P * theta_JA using the theta_JA value from the Microchip 54SX family datasheet for your airflow condition, and keep TJ below the absolute maximum rating with at least 20C margin.
合規資訊
Per xsourcepart data: Lead free / RoHS Compliant. REACH, halogen-free, and conflict-minerals status not stated in provided data.