A54SX08-VQ100 - SX FPGA 8K Gates 100-TQFP | Microsemi
MPN： A54SX08-VQ100 ✗ 停產A54SX08-VQ100 概覽
An FPGA (Field-Programmable Gate Array) is a semiconductor device containing programmable logic blocks and interconnects that designers configure after manufacturing. Unlike SRAM-based FPGAs, the Actel SX family uses antifuse programmable interconnect, which is one-time programmable: the configuration is permanent, immune to configuration readback attacks, needs no external boot flash, and powers up instantly with the design already loaded.
The SX family features a sea-of-modules architecture delivering ASIC-like density and performance. The A54SX08 offers 0.35 um process technology, 512 register cells, toggle rates to 240 MHz, and a flexible I/O structure supporting 3.3 V and 5.0 V signaling. The antifuse fabric also yields very low static power and high resistance to SEU configuration upsets compared with SRAM FPGAs.
Architecturally, the SX device is organized as an array of logic modules surrounded by horizontal and vertical routing channels, with dedicated clocks and I/O modules around the periphery. Logic is implemented in combinatorial and sequential modules that map efficiently from Verilog or VHDL via the Actel/Microchip Libero design flow.
Typical applications include glue logic integration, bus bridging, industrial control, communications line cards, mil-aerospace sub-systems, and replacement of multiple discrete 74-series devices where boot-time, security, and radiation tolerance of configuration matter.
A key design consideration is that antifuse devices are one-time programmable: prototype carefully and reserve spare gates and I/Os for late changes, since the programmed device cannot be reconfigured in-system.
This page synthesizes verified distributor data, cross-reference findings, pricing guidance, and drop-in alternative analysis not consolidated in the manufacturer datasheet.
直接替換替代品，適用於 A54SX08-VQ100 — 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： A54SX08-VQ100 （相同外形與佔位） — 差異在於 System Gates, Family, Process Technology, Package, Package / Case.
A54SX08-VQG100
✅ 直接替換聯絡詢價
查看資料表 →A54SX08-VQ100I
✅ 直接替換📋 參考替代品（不在目錄中）
A54SX16-2VQ100
✅ 直接替換聯絡詢價
查看資料表 →A54SX16-VQ100
✅ 直接替換 ⚠️ 規格未經驗證✗ 缺貨
聯絡詢價
查看資料表 →A54SX16P-VQ100
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →A54SX16P-VQG100M
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →A54SX08-VQ100 最大額定值與電氣特性
| Series | SX (Actel) |
| System Gates | 8000 |
| Logic Cells (Modules) | 512 |
| User I/Os | 81 |
| Maximum System Frequency | 240 MHz |
| Process Technology | 0.35 um |
| Supply Voltage (Core/IO) | 3 V ~ 3.6 V |
| Supply Voltage (VPP/Ring) | 4.75 V ~ 5.25 V |
| Program Technology | Antifuse (one-time programmable) |
| 封裝 / 外殼 | 100-TQFP (14x14 mm) |
| Supplier Device Package | 100-VQFP (14x14) |
| 安裝類型 | Surface Mount |
| Architecture | Sea-of-modules |
A54SX08-VQ100 100-vqfp (14x14) 腳位配置指南
A54SX08-VQ100（100-vqfp (14x14) 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： A54SX08-VQ100.
請參閱 資料表 以查看完整腳位配置。
典型應用
A54SX08-VQ100 適用於 6 應用s: Glue Logic Integration, Industrial Control and Automation, Communications Line Cards, Aerospace and Defense Subsystems, Test and Measurement Equipment, Legacy Board Redesign and Obsolescence Management.
Glue Logic Integration
The A54SX08-VQ100's 8K gates and 512 cells are sized to replace dozens of discrete 74-series logic devices, PALs, and GALs on a single board. Its 240 MHz toggle capability and deterministic antifuse timing make it well suited to address decoding, bus matching, and control-logic consolidation. Because the configuration is non-volatile, the board powers up functional with no boot controller or configuration flash, simplifying power sequencing versus SRAM FPGAs. The 81 user I/Os in the 100-TQFP provide ample interface count for legacy bus widths, and dual 3.3 V/5 V supply support eases interfacing with mixed-voltage legacy logic.
推薦
Industrial Control and Automation
In industrial controllers, PLC I/O cards, and motor-interface boards, the A54SX08-VQ100 provides deterministic, instantly-available control logic with 81 I/Os for sensors, encoders, and actuators. The antifuse fabric is immune to configuration upsets that can afflict SRAM FPGAs in electrically noisy factory environments, and the one-time-programmed design cannot be altered in the field. The 3.0-3.6 V core/IO supply integrates with modern 3.3 V logic while 5 V-tolerant interfaces bridge legacy equipment. Designers should reserve spare gates and I/Os for late feature additions, since antifuse devices cannot be reprogrammed after assembly.
推薦
Communications Line Cards
Telecom and datacom line cards use the A54SX08-VQ100 for framing, multiplexing, and backplane interface logic where 240 MHz-class toggle rates cover T1/E1 and lower-rate SONET overhead functions. The sea-of-modules architecture gives ASIC-like routing predictability, easing static-timing closure on fixed-latency paths. Non-volatile antifuse configuration means a line card is operational the moment power is applied - valuable in hot-swap and redundant-card systems. The 100-TQFP 14x14 mm package fits standard card form factors, and the 0.35 um fabric provides stable, well-characterized I/O timing for backplane signaling.
推薦
Aerospace and Defense Subsystems
Actel antifuse FPGAs are a traditional choice in defense electronics because the programmed configuration cannot be read back, protecting design IP, and the fabric tolerates radiation-induced configuration upsets far better than SRAM cells. The A54SX08-VQ100 suits payload interface logic, telemetry framing, and command decoding where 8K gates suffice. Instant-on behavior eliminates boot vulnerabilities during power transients, and the industrial-grade A54SX08-VQ100I variant extends the temperature envelope. For flight programs needing higher density in similar technologies, Microsemi's larger SX parts and RTAX radiation-hardened family (e.g., RTAX1000SL) offer upgrade paths.
推薦
Test and Measurement Equipment
Bench instruments and rack modules use the A54SX08-VQ100 for trigger logic, counter/timer functions, and bus interfacing. The 240 MHz toggle capability and low, deterministic clock-to-out timing of the antifuse fabric support precision event capture, while 81 I/Os accommodate multi-channel probe interfaces. Non-volatile configuration means the instrument front panel and measurement engine are live immediately at power-on - no configuration load time delays the first measurement. The 3.3 V/5 V mixed supply support simplifies designs that bridge modern digital sections with legacy 5 V instrumentation buses.
推薦
Legacy Board Redesign and Obsolescence Management
When maintaining long-lifecycle products, the A54SX08-VQ100 consolidates aging PAL/GAL and discrete-logic obsolescence risk into a single supported device, with the green A54SX08-VQG100 easing RoHS-driven board respins. The SX16 in the same 100-VQFP footprint (A54SX16-2VQ100, A54SX16P-VQ100) provides a guaranteed migration path if logic grows. Design teams should archive HDL sources and Libero project files, stock safety inventory, and qualify at least one same-footprint alternate in the approved-vendor list, since antifuse programming requires external programmers and mature-stock channels for ongoing production.
推薦
推薦產品摘要
工程參考資料，適用於 A54SX08-VQ100 — 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 | A54SX08-VQG100 | A54SX08-VQ100I | A54SX16-2VQ100 | A54SX16P-VQ100 |
|---|---|---|---|---|---|
| Package | 100-TQFP/VQFP (14x14 mm) | 100-VQFP (14x14 mm) - same | 100-VQFP (14x14 mm) - same | 100-VQFP (14x14 mm) - same | 100-VQFP (14x14 mm) - same |
| Brand | Microsemi (Actel/Microchip) | Microsemi | Microsemi | Microsemi | Microsemi |
| System Gates | 8000 | 8000 | 8000 | 16000-class | 16000-class |
| Maximum System Frequency | 240 MHz | 240 MHz | 240 MHz | 240 MHz (SX family class) | Higher (SX-A performance class) |
| Temperature Grade | Commercial (standard) | Commercial (green package) | Industrial | Standard | Standard |
| Recompilation Required for Replacement | - | No (identical die) | No (identical die) | Yes (different die) | Yes (different die) |
主要差異化特點
- Identical-die green package availability (對比A54SX08-VQG100)
- In-place capacity upgrade path (對比A54SX16-2VQ100)
- Non-volatile antifuse fabric vs SRAM competitors (對比SRAM FPGAs (Xilinx/Intel equivalents))
設計說明
The A54SX08-VQ100 uses dual supply domains per the SX family datasheet: 3.0-3.6 V for core/IO operation and a 4.75-5.25 V supply class for programming/charge-pump functions. Provide independent, well-decoupled rails (100 nF ceramic per supply pin plus 10 uF bulk per rail) and respect the specified power-up ramp. Antifuse FPGAs draw very low static current compared with SRAM FPGAs since there is no configuration bitstream being actively driven, but transient currents during high toggle-rate operation still require adequate decoupling near the package.
The device is one-time programmable: once programmed, the design is permanent. Reserve 20-30% spare gates and several spare I/Os in your floorplan to absorb late design changes without a board respin. Verify post-route timing simulation and static timing in the Libero/Designer toolchain before programming production units, and archive the programming fusemap files. Never rely on a single programmed prototype for functional sign-off - program and validate at least two units to rule out programming errors.
The 100-TQFP (14x14 mm) has 0.5 mm pin pitch; use a 4-mil trace/6-mil space fanout pattern or escape vias to route out all 100 pins on two signal layers. Keep unused I/Os configured per the SX datasheet recommendation (driven low or tristated with termination as applicable) to avoid floating inputs. For mixed 3.3 V/5 V systems, verify I/O banking assignments in the software before routing so that 5 V-tolerant signals land on appropriate banks, and follow SX-family application-note guidance on ground return paths for high toggle-rate outputs.
合規資訊
The standard VQ100 package's RoHS status was not stated in the verified data. The green-package variant A54SX08-VQG100 is the designated RoHS/green option per FindIC cross-reference; confirm compliance certificates with Microchip for the specific orderable suffix.