A54SX08A-TQG144A - SX-A FPGA 12K Gates 113 I/O | Microchip
MPN： A54SX08A-TQG144A ✓ 啟用中A54SX08A-TQG144A 概覽
A field programmable gate array (FPGA) is an integrated circuit that implements custom digital logic through programmable interconnect and configurable logic blocks. The SX-A family belongs to the FPGA hierarchy within programmable logic devices (PLDs), sitting above CPLDs in gate capacity and using antifuse programming technology that permanently fixes the configuration at programming time.
Key features include a 0.25 um CMOS process, a single 2.5V core supply, non-volatile antifuse interconnect that requires no external configuration memory or boot time, and low dynamic power consumption. Because the configuration is stored in antifuse elements rather than SRAM, the device is inherently secure against design theft and immune to configuration readback.
The SX-A architecture uses act-3 style logic modules with dedicated flip-flops, supporting high-speed pipelined designs. Registered performance reaches the 200+ MHz class, making it suitable for glue logic consolidation, bus bridging, address decoding, and state machines that replace multiple discrete TTL/CMOS devices in a single low-cost chip.
Typical applications include industrial control, telecommunications line-card logic, military and aerospace (the automotive-grade TQG144A suffix supports extended temperature screening), test equipment, and legacy system sustainment where an antifuse FPGA with fixed one-time programming is preferred over SRAM FPGAs.
Designers should plan the pinout early using Libero SoC (formerly Actel Designer) software, since antifuse programming is permanent and the device cannot be reprogrammed. Verify I/O standards and drive strengths against the SX-A datasheet during floorplanning.
This page consolidates verified distributor availability, drop-in alternatives within the same TQFP-144 footprint, pricing tiers, and practical design guidance not found in the manufacturer datasheet alone.
直接替換替代品，適用於 A54SX08A-TQG144A — 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： A54SX08A-TQG144A （相同外形與佔位） — 差異在於 Package, Family, System Gates, Process Technology, Mounting Type.
A54SX08A-1TQG144A
✅ 直接替換📋 參考替代品（不在目錄中）
A54SX08A-TQG144I
✅ 直接替換📋 參考替代品（不在目錄中）
A54SX08A-2TQG144I
✅ 直接替換聯絡詢價
查看資料表 →A54SX08A-TQG144
✅ 直接替換📋 參考替代品（不在目錄中）
A54SX16A-TQG144A
✅ 直接替換聯絡詢價
查看資料表 →A54SX08-1TQG144
✅ 直接替換聯絡詢價
查看資料表 →A54SX08A-TQG144A 最大額定值與電氣特性
| Family | SX-A (antifuse FPGA) |
| System Gates | 12000 |
| Typical Usable Gates | 8000 |
| Logic Modules / Cells | 512 |
| User I/O | 113 |
| Maximum System Frequency | 238 MHz |
| Core Supply Voltage | 2.5 V |
| Process Technology | 0.25 um CMOS |
| Programming Technology | Antifuse (one-time programmable) |
| Configuration Memory Type | Non-volatile (no external boot memory) |
| 封裝 | 144-LQFP / TQFP |
| 安裝類型 | Surface Mount |
| Temperature Grade | Automotive / extended |
| Design Software | Microchip Libero SoC (Actel Designer) |
A54SX08A-TQG144A 144-lqfp / tqfp 腳位配置指南
A54SX08A-TQG144A（144-lqfp / tqfp 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： A54SX08A-TQG144A.
請參閱 資料表 以查看完整腳位配置。
典型應用
A54SX08A-TQG144A 適用於 6 應用s: Industrial Control and Automation, Telecommunications Line Cards, Aerospace and Defense Logic, Legacy System Sustainment, Test and Measurement Equipment, Glue Logic Consolidation and Obsolescence Redesign.
Industrial Control and Automation
The A54SX08A-TQG144A consolidates PLC I/O decoding, sensor-interface glue logic, and sequencer state machines that would otherwise occupy multiple TTL/CMOS devices. Its 12,000 system gates and 113 user I/Os provide enough capacity for bus interfacing, address decoding, and interlocked control logic, while the 238 MHz registered performance comfortably covers industrial timing requirements. Because the antifuse configuration is non-volatile, the FPGA is instantly active at power-up with no configuration load delay - a key benefit for machinery that must reach an operational state immediately. Distributor data (Jotrin) explicitly positions this device as automotive-grade 2.5V logic in TQFP-144, supporting extended-temperature factory environments. Place it between a microprocessor bus and local I/O cards, decoupling each 2.5V supply pin with 0.1 uF ceramics.
推薦
Telecommunications Line Cards
Telecom line cards historically used SX-A antifuse FPGAs for framing, clock distribution, and backplane interface logic. The A54SX08A-TQG144A fits this role with 512 logic modules supporting pipelined datapaths at 238 MHz - sufficient for T1/E1-class framing counters and backplane handshaking. Its single 2.5V core supply simplifies power tree design on densely populated cards, and the antifuse configuration eliminates the configuration PROM and boot sequence required by SRAM FPGAs, improving card availability metrics. The 113 user I/Os cover data, address, and control pin requirements of a typical line card. Designers should reserve spare I/O for JTAG-bound test points and use Libero SoC timing reports to confirm closed-loop timing across the backplane interface before programming the one-time antifuses.
推薦
Aerospace and Defense Logic
Antifuse FPGAs have long been preferred in defense and aerospace designs because the programmed configuration cannot be read back, protecting proprietary logic, and because the non-volatile antifuse fabric is inherently immune to configuration upsets that affect SRAM cells. The A54SX08A-TQG144A's automotive-grade screening and TQFP-144 surface-mount package support rugged board assemblies, while its fixed one-time programming prevents accidental reconfiguration in the field. Typical uses include flight-hardware glue logic, telemetry encoders, and sensor-interface state machines requiring deterministic, instant-on behavior at power application. At 8,000 typical usable gates, it consolidates discrete 74-series logic on constrained boards. For flight builds, obtain full traceability documentation from Microchip USA or authorized distributors and screen lots to the project's specified level.
推薦
Legacy System Sustainment
Many legacy military, telecom, and industrial platforms were designed around the SX-A family and still require these exact devices for spares and repairs. The A54SX08A-TQG144A serves direct-sustainment needs because it is pin-to-pin and bitstream-compatible within the family: the TQG144A, TQG144I, and -1/-2 speed-grade variants share the same 144-pin TQFP footprint and terminals, so fielded PCBs accept any qualified variant without rework, as FindIC's cross-reference confirms for TQG144 vs TQG144A. Sustainment teams should qualify at least two source variants (for example, the -1 speed grade as a functional superset) to mitigate distributor stock gaps, and keep Libero SoC legacy toolchains available for re-spinning programming files when design documentation must be regenerated.
推薦
Test and Measurement Equipment
Bench and automated test instruments use small FPGAs for trigger logic, counter/timer functions, and backplane protocol bridging. The A54SX08A-TQG144A suits these roles with 238 MHz registered performance supporting precision event counting, and 113 flexible I/Os for front-panel, relay-control, and bus interfaces. The antifuse fabric contributes no configuration-load latency, so instruments are measurement-ready within microseconds of power-up, and the design cannot be corrupted by an interrupted reconfiguration during field use. Estimated dynamic power on the 0.25 um process keeps self-heating low in enclosed instruments; designers should verify thermal margin with Libero's power estimator using actual toggle rates. Decouple all supply pins and route high-speed trigger signals with controlled impedance where source-synchronous timing matters.
推薦
Glue Logic Consolidation and Obsolescence Redesign
A primary SX-A use case is replacing dozens of discrete 74-series devices, PALs/GALs, and small CPLDs with one secure single-chip solution, exactly as Microchip describes for the family: integrating multiple functions into a low-cost, single-chip solution. The A54SX08A-TQG144A's 12,000 system gates absorb address decoders, bus transceivers' control logic, wait-state generators, and interrupt controllers, cutting BOM count and board area. Because the antifuse device is one-time programmable, redesigned boards get tamper-resistant, boot-time-free logic at low unit cost. When executing an obsolescence redesign, map legacy PAL equations into Verilog/VHDL, verify I/O drive and voltage compatibility with surrounding 3.3V/5V-tolerant-era devices per the SX-A datasheet, and budget the TQFP-144 land pattern to match your existing layout for drop-in upgrades.
推薦
推薦產品摘要
工程參考資料，適用於 A54SX08A-TQG144A — 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 | A54SX08A-1TQG144A | A54SX08A-TQG144I | A54SX08A-2TQG144I | A54SX16A-TQG144A | A54SX08-1TQG144 |
|---|---|---|---|---|---|---|
| Package | TQFP-144 | TQFP-144 - same | TQFP-144 - same | TQFP-144 - same | TQFP-144 - same | TQFP-144 - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 12,000 | 12,000 | 12,000 | 12,000 | ~24,000 (2x) | 12,000 |
| User I/O | 113 | 113 | 113 | 113 | 113 | 113 |
| Speed Grade | Standard | -1 (faster) | Standard | -2 (fastest) | Standard | -1 |
| Core Supply Voltage | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V |
| Programming Type | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) |
主要差異化特點
- Non-volatile antifuse configuration with instant power-up (對比SRAM-based FPGAs)
- Pin-compatible upgrade to higher density (對比A54SX16A-TQG144A)
- Multiple qualified drop-in sourcing options (對比A54SX08A-1TQG144A)
設計說明
The A54SX08A-TQG144A uses a single 2.5V core supply. Decouple each VCC/VCCA pin pair with 0.1 uF ceramic capacitors placed within 2 mm of the pin, plus bulk 10 uF capacitance per supply rail. Antifuse FPGAs draw no configuration power, so current depends mainly on logic toggle rate - use Libero SoC's power estimator with your actual design activity factors rather than worst-case datasheet numbers to size the 2.5V regulator. Verify supply sequencing requirements against the SX-A family datasheet if other rails share the board.
Antifuse programming is permanent. Do not release the design to programming until timing is fully closed in Libero SoC and board-level simulation (including I/O loading) passes. Always program at least 10-20% spare devices, since a defective board rework consumes programmed parts. Also confirm the exact speed-grade and temperature suffix on purchase orders - mixing TQG144A (standard) with -1/-2 speed grades in a single build can cause lot-to-lot timing margin differences in marginal designs.
The TQFP-144 land pattern follows standard 0.5 mm pitch QFP footprints (approximately 28 x 28 mm body). Assign I/O early in Libero SoC floorplanning to minimize crossing signals and keep high-speed or source-synchronous groups on adjacent pins with nearby ground returns. Provide thermal relief via the ground plane; estimated: a 0.5 W dissipation with typical theta_JA for a 144-pin TQFP (~40-50 C/W class) yields roughly 20-25 C junction rise, comfortable in most enclosures, but confirm with the datasheet thermal table for your airflow conditions.
合規資訊
Distributor listings describe the device as automotive-grade; the 'G' in TQG144 conventionally indicates the green packaging variant in Microchip ordering codes, but formal RoHS/REACH declarations were not present in the provided data and must be confirmed with Microchip.
