A54SX16P-1PQ208I - 16K Gate SX FPGA, 208-PQFP | Microchip
料号： A54SX16P-1PQ208I ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $68.5 | $68.50 |
| 10 | $62.1 | $621.00 |
| 100 | $55.8 | $5,580.00 |
| 500 | $49.9 | $24,950.00 |
| 1,000 | $44.2 | $44,200.00 |
A54SX16P-1PQ208I 概述
An FPGA (field-programmable gate array) is a semiconductor device containing a fabric of programmable logic blocks and interconnects that designers configure in the field via a hardware description language such as Verilog or VHDL. Within the product hierarchy, the A54SX16P belongs to the Actel SX family -> antifase FPGA -> programmable logic IC -> semiconductor. Unlike SRAM-based FPGAs, SX devices program at the factory (via embedded module programming), eliminating the need for external configuration PROMs and improving board security and power-up immediacy.
Key features include a sea-of-modules architecture delivering 3.7 ns pin-to-pin clock-to-out, 0.1 ns input setup, and 0.25 ns clock skew, supporting 66 MHz PCI integration in a single chip. The device operates from a nominal 3.3V supply (3.0V to 3.6V range) with 5.0V-tolerant I/O capability, easing mixed-voltage board designs. The 0.35 um CMOS process with antifase interconnect yields 100% resource utilization with 100% pin locking - a notable advantage over SRAM FPGA architectures of the era.
The SX architecture uses a sea-of-modules fabric with Combinatorial Modules (CMs) and Register Modules (RMs), achieving a combinatorial CLB delay of approximately 0.8 ns. Because routing is antifase-based, the device is non-volatile, secure against readback, and immune to configuration SEU at power-up, which historically made SX FPGAs popular in aerospace, industrial, and communications platforms.
Typical applications include 66 MHz PCI bus interface logic, industrial control and automation glue logic consolidation, telecommunications line-card logic, and legacy military/avionics boards requiring non-volatile programmable logic.
When designing with this device, budget the 3.3V core supply and account for the PQFP 28x28 mm footprint and 0.5 mm lead pitch in PCB layout; verify final timing with Microchip (Actel) Designer software after place-and-route.
This page synthesizes verified distributor data, drop-in alternatives, pricing context, and practical design notes not found in the manufacturer datasheet.
直接替换替代料： A54SX16P-1PQ208I ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： A54SX16P-1PQ208I （相同外形与封装尺寸） ——差异在于 Package, Family, System Gates, Speed Grade, Equivalent Gates.
快速对比工具——选择替代料号进行并排对比：
A54SX16P-1PQG208I
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →A54SX16P-PQG208I
✅ 直接替换✓ 有现货
$38.75 / 个
查看数据手册 →A54SX16P-2PQG208
✅ 直接替换✓ 有现货
$49.2 / 个
查看数据手册 →A54SX16P-PQG208
✅ 直接替换✓ 有现货
$47.95 / 个
查看数据手册 →A54SX16P-1PQG208M
✅ 直接替换✓ 有现货
$28.5 / 个
查看数据手册 →A54SX16P-PQ208I
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →A54SX16P-2PQG208I
✅ 直接替换✓ 有现货
$38.5 / 个
查看数据手册 →A54SX16P-1PQG208
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →A54SX16P-1PQ208I 最大额定值与电气特性
| Family | Actel SX (54SX) |
| Equivalent Gates | 16000 (24000 system gates per Microchip USA listing) |
| Logic Modules (Cells) | 924 |
| Configurable Logic Blocks (CLBs) | 1452 |
| User I/O | 175 |
| Maximum System Frequency | 280 MHz (320 MHz internal performance) |
| Clock-to-Out (Pin-to-Pin) | 3.7 ns |
| Input Set-Up Time | 0.1 ns |
| Clock Skew | 0.25 ns |
| Combinatorial CLB Delay | 0.8 ns |
| Supply Voltage (Core) | 3.0 V to 3.6 V (nominal 3.3 V) |
| I/O Voltage Support | 3.3 V with 5.0 V tolerance |
| Process Technology | 0.35 um CMOS, antifase interconnect |
| PCI Support | 66 MHz PCI single-chip integration |
| Temperature Grade | Industrial (-40C to +85C), suffix I |
| 封装 | 208-Pin PQFP (28x28 mm, 0.50 mm pitch, JESD-30 S-PQFP-G208) |
| 安装类型 | Surface Mount |
| Programming Technology | Antifase (non-volatile, factory/one-time programmable) |
A54SX16P-1PQ208I 208-pin pqfp (28x28 mm, 0.50 mm pitch, jesd-30 s-pqfp-g208) 引脚配置指南
A54SX16P-1PQ208I（208-pin pqfp (28x28 mm, 0.50 mm pitch, jesd-30 s-pqfp-g208) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： A54SX16P-1PQ208I.
请参阅 数据手册 以查看完整引脚配置。
典型应用
A54SX16P-1PQ208I 适用于 6 应用s: 66 MHz PCI Bus Interface, Industrial Control and Automation, Telecommunications Line Cards, Aerospace and Defense Legacy Sustainment, Test and Measurement Instrumentation, Legacy 5V/3.3V Mixed-Voltage Board Redesign.
66 MHz PCI Bus Interface
The A54SX16P-1PQ208I integrates a complete 66 MHz PCI target or master interface in a single chip. According to the Microchip 54SX datasheet, the SX P family was explicitly characterized for 66 MHz PCI compliance, with 3.7 ns pin-to-pin clock-to-out and 0.25 ns clock skew that keep critical path timing within the PCI 66 MHz budget. The 175 user I/O comfortably cover the 47-signal 32-bit PCI bus plus application glue logic, consolidating a discrete PCI bridge and support PLD into one device. Because the antifase fabric is non-volatile, the PCI interface is active the instant power is applied - important in systems where bus enumeration happens immediately at reset. The 3.3V core with 5V-tolerant I/O eases integration into legacy 5V PCI backplanes.
推荐
Industrial Control and Automation
The industrial temperature rating of -40C to +85C (suffix I) makes the A54SX16P-1PQ208I a natural fit for factory automation controllers, motor-drive sequencers, and PLC I/O consolidation. Its 16,000 gates and 924 modules are sufficient to merge address decoders, counters, interrupt controllers, and state machines that would otherwise occupy several 74-series or CPLD devices, cutting board area and BOM cost. The 3.0V to 3.6V supply tolerance absorbs industrial rail variation, while 5V-tolerant inputs directly interface legacy 5V sensors and encoders without level shifters. Non-volatile antifase programming means the control logic is running at power-up with no configuration controller, improving system availability and reducing component count in electrically noisy environments.
推荐
Telecommunications Line Cards
Telecom line cards historically used SX FPGAs for framing, HDLC controllers, backplane interface, and glue logic consolidation. The A54SX16P-1PQ208I's 280 MHz internal performance supports multi-channel serial handling at T1/E1 rates with wide margin, and its 0.8 ns combinatorial CLB delay keeps state-machine paths short. The 208-pin PQFP provides enough I/O (175) to address backplane connectors, line-interface chips, and microprocessor buses simultaneously. The antifase fabric's immunity to configuration upsets at power-up suits equipment that must re-establish service immediately after a power event. Designers should verify total timing with Actel Designer against the -1 speed grade files for the specific clock rates used.
推荐
Aerospace and Defense Legacy Sustainment
Actel antifase FPGAs were widely adopted in avionics, satellite, and defense electronics precisely because their non-volatile, readback-protected fabric resists configuration-cloning and powers up instantly. Boards still in service that use the A54SX16P-1PQ208I can be sustained with identical die builds: the -M temperature-suffix variant (A54SX16P-1PQG208M) covers extended/military ambients, and the same-package family allows re-sourcing without PCB changes. The 0.35 um CMOS process is well-characterized for total-ionizing-dose behavior relative to modern deep-submicron nodes, one reason these parts persist in heritage platforms. Any redesign should keep the same programming flow and re-verify pin locking in Actel Designer before committing to a new build.
推荐
Test and Measurement Instrumentation
Bench instruments, ATE boards, and protocol analyzers benefit from the A54SX16P-1PQ208I's combination of deterministic timing (0.25 ns clock skew, 0.1 ns setup) and instant-on behavior for trigger and timing-generation logic. The 175 user I/O let one device connect to front-panel interfaces, ADC/DAC control buses, and system backplanes simultaneously. Because the antifase fabric introduces no configuration latency, measurement channels are consistent from the first trigger after power-up - a subtle but real advantage over SRAM FPGAs whose first-capture behavior can differ during configuration. The 3.3V supply with 5V-tolerant inputs simplifies interfacing to legacy instrument buses operating at 5V TTL levels.
推荐
Legacy 5V/3.3V Mixed-Voltage Board Redesign
When consolidating an older board that mixes 5V TTL devices with 3.3V logic, the A54SX16P-1PQ208I's 5.0V-tolerant I/O (at 3.3V core supply, 3.0V-3.6V range) eliminates level-shifter components on inputs sourced from 5V drivers. The device can absorb decoders, bus transceivers' control logic, and interrupt aggregation, shrinking a two-era board into a cleaner single-fabric design. The 66 MHz PCI capability also lets designers add a modern PCI host interface to legacy systems in the same device. Layout-wise, the 28x28 mm PQFP with 0.5 mm pitch is hand-assemblable and rework-friendly compared with ball-grid alternatives, an advantage for low-volume industrial and repair-oriented production.
推荐
推荐产品汇总
工程参考数据： A54SX16P-1PQ208I ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | A54SX16P-1PQG208I | A54SX16P-2PQG208 | A54SX16P-PQ208I |
|---|---|---|---|---|
| Brand | Microchip Technology (Actel/Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 208-Pin PQFP (28x28 mm) | 208-Pin PQFP - same footprint | 208-Pin PQFP - same footprint | 208-Pin PQFP - same footprint |
| Equivalent Gates | 16000 (924 modules) | 16000 (924 modules) | 16000 (924 modules) | 16000 (924 modules) |
| User I/O | 175 | 175 | 175 | 175 |
| Speed Grade | -1 (280 MHz system) | -1 (280 MHz system) | -2 (faster, higher margin) | Standard (base timing) |
| Temperature Range | -40C to +85C (Industrial, I suffix) | -40C to +85C | 0C to +70C (Commercial) | -40C to +85C |
| Supply Voltage | 3.0 V - 3.6 V (3.3 V nominal), 5 V tolerant I/O | 3.0 V - 3.6 V, 5 V tolerant I/O | 3.0 V - 3.6 V, 5 V tolerant I/O | 3.0 V - 3.6 V, 5 V tolerant I/O |
关键差异点
- Industrial temperature rating （对比 A54SX16P-2PQG208)
- Faster speed grade available at same footprint （对比 A54SX16P-2PQG208I)
- Lead-free build option （对比 A54SX16P-PQ208I)
设计说明
The A54SX16P-1PQ208I operates from a nominal 3.3V core supply with an allowed range of 3.0V to 3.6V; a second 5.0V pin group (4.75V to 5.25V per Microsemi listings) may be used to enable 5V-tolerant/5V PCI operation depending on the pin group assignment. Decouple each VCC pin with 0.1 uF ceramic capacitors placed within 2 mm of the pin, plus bulk 10 uF at the board level. Because antifase devices draw no configuration current, supply ramp requirements are relaxed versus SRAM FPGAs, but verify per the 54SX datasheet power-up specification before finalizing the power supply design.
The 208-PQFP is a 28x28 mm body with 0.50 mm lead pitch (JESD-30 S-PQFP-G208). Use a standard gull-wing footprint with solder lengths per IPC, and place at least one ground plane under the device to control return paths for the 66 MHz PCI signals. Keep clock routing short and matched in length across the PCI bus group. All 208 pin assignments must be confirmed against the package pinout tables in the Microchip 54SX family datasheet before layout sign-off, since I/O functions are pin-locked in Actel Designer.
Do not substitute the commercial-temperature variants (A54SX16P-2PQG208, A54SX16P-1PQG208, A54SX16P-PQG208) into industrial -40C to +85C applications - they are rated 0C to +70C. Confirm the speed grade in the programming file matches the physical device (-1 vs -2): programming a -1 timing-constrained design into a standard-grade device can produce marginal timing. Finally, verify RoHS/lead-finish requirements per lot, since both green (PQG208) and original (PQ208) builds exist in the family.
合规信息
Compliance not stated in retrieved distributor snippets. Both green (PQG208 lead-free) and original (PQ208 SnPb) build variants exist in the SX family; confirm RoHS status per specific lot and suffix via Microchip certificate of conformance.
