A42MX36-PQG208A - 54K Gate 5V FPGA 208-QFP | Microchip
MPN： A42MX36-PQG208A ✓ 啟用中A42MX36-PQG208A 概覽
An FPGA (Field-Programmable Gate Array) is a semiconductor device containing a fabric of configurable logic blocks and programmable interconnects that designers configure in the field. Within the programmable logic hierarchy, the MX family sits as a cost-effective, single-chip ASIC alternative for high-volume systems, positioned above simple PLDs and below modern high-density FPGAs.
Key features include the flexible 5.0V architecture ideal for integrating legacy PLDs into a single low-cost device, MultiPlex I/Os supporting mixed-voltage 5.0V/3.3V systems, programmable PCI compliance with the PCI Local Bus Specification version 2.1, and a low-power mode. The A42MX36 is the largest member of the 40MX/42MX families and is fully tested over automotive and military temperature ranges.
The MX architecture uses a proven antifuse-based design flow with Libero SoC design tool support, enabling reliable, one-time programmable configurations immune to configuration-bit upsets in radiation-prone or high-vibration environments. High volume production makes MX a durable platform for long-lifecycle industrial programs.
Typical applications include legacy 5V system integration, industrial control, MIL/aerospace upgrades using pin-compatible CQ208 ceramic packages, PCI bus interfaces, and single-chip replacement of multiple PLDs and glue logic.
Design consideration: the 5.0V core supply is mandatory; plan power distribution and I/O banking for mixed 5.0V/3.3V operation, and verify pin compatibility between PQ208 and CQ208 packages when prototyping.
直接替換替代品，適用於 A42MX36-PQG208A — 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： A42MX36-PQG208A （相同外形與佔位） — 差異在於 Package, Family, PCI Compliance, RoHS Status, Operating Temperature.
A42MX36-PQG208I
✅ 直接替換聯絡詢價
查看資料表 →A42MX36-1PQG208
✅ 直接替換聯絡詢價
查看資料表 →A42MX36-FPQG208
✅ 直接替換聯絡詢價
查看資料表 →A42MX36-PQG208M
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
A42MX36-PQG208MX39
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
A42MX24-3PQG208I
⚡ 相同封裝聯絡詢價
查看資料表 →A42MX36-PQG208A 最大額定值與電氣特性
| Family | 42MX (MX FPGA) |
| System Gates | 54000 gates |
| CLBs | 1184 |
| Logic Cells | 2438 |
| User I/O | 176 |
| 供應電壓 | 5.0 V |
| I/O Voltage Support | 5.0 V / 3.3 V (MultiPlex I/O) |
| 最大時脈頻率 | 116 MHz |
| Process Technology | 0.45 um CMOS |
| 封裝 | 208-BFQFP (PQFP-208) |
| 安裝類型 | Surface Mount |
| PCI Compliance | PCI Local Bus Specification v2.1 |
| Low Power Mode | Yes |
| Programming Type | One-Time Programmable (antifuse) |
| Temperature Range | Automotive and military ranges tested |
| RoHS 狀態 | Lead free (per distributor listing) |
| Design Software | Microchip Libero SoC |
A42MX36-PQG208A 208-bfqfp (pqfp-208) 腳位配置指南
A42MX36-PQG208A（208-bfqfp (pqfp-208) 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： A42MX36-PQG208A.
請參閱 資料表 以查看完整腳位配置。
典型應用
A42MX36-PQG208A 適用於 6 應用s: Legacy 5.0V System Integration, Industrial Control and Automation, PCI Bus Interface Design, Aerospace and Defense Upgrades, Single-Chip ASIC Alternative, Test and Measurement Equipment.
Legacy 5.0V System Integration
The A42MX36-PQG208A natively operates at 5.0V, matching older board-level power rails that modern 3.3V/1.2V FPGAs cannot tolerate without level shifting. Its 54K gates and 176 user I/Os allow consolidating multiple legacy PLDs, PALs, and glue logic into one device, cutting board area and BOM cost. MultiPlex I/O supports 5.0V/3.3V mixed signaling, easing transitions where new peripherals coexist with 5V buses. The one-time-programmable fabric needs no boot flash, improving reliability in long-lifecycle industrial systems.
推薦
Industrial Control and Automation
In factory automation and motor-control backplanes, the A42MX36-PQG208A provides deterministic, one-time-programmable logic with 116 MHz capability and robust 5.0V noise margins suited to electrically harsh environments. Its automotive/military temperature screening ensures dependable operation beyond commercial limits. The low-power mode reduces dissipation in always-on control nodes. PCI v2.1 programmable compliance also allows direct interface to industrial PC backplanes without external bridge devices.
推薦
PCI Bus Interface Design
The MX family is fully compliant with the PCI Local Bus Specification version 2.1, with programmable PCI support delivered by the MultiPlex I/O structure at both 5.0V and 3.3V signaling levels. Designers can implement PCI target or master interfaces directly inside the 54K-gate fabric alongside custom application logic, eliminating a dedicated PCI ASSP. The 116 MHz maximum clock capability covers the 33 MHz PCI clock domain with ample margin for internal logic.
推薦
Aerospace and Defense Upgrades
For defense programs maintaining 5V-era platforms, the A42MX36 offers CQ208 ceramic packages screened to MIL-STD-883 levels, and the plastic PQ208 is pin-compatible with CQ208, allowing prototype on plastic and conversion to ceramic without PCB rework. The antifuse fabric is immune to configuration-memory upset, an advantage over SRAM FPGAs in radiation environments. The PQG208A automotive/military temperature screening supports ground-based and avionic legacy refresh applications.
推薦
Single-Chip ASIC Alternative
Microchip positions MX FPGAs as reliable, single-chip ASIC alternatives for high-volume products. Compared with an ASIC's NRE and long lead times, the A42MX36-PQG208A provides instant programmability, field updates via device replacement, and zero mask costs at moderate volumes. Its 54K-gate capacity suits protocol glue, bus bridging, and control datapaths. One-time programming also protects the design from cloning because the configuration cannot be read back.
推薦
Test and Measurement Equipment
Bench instruments and ATE often retain 5V subsystems where the A42MX36-PQG208A interfaces directly with legacy ADCs, drivers, and backplanes without translation devices. Its 176 I/Os handle wide parallel data buses for timing and control sequencing, and the 116 MHz fabric clock supports fast state machines. One-time-programmable configuration guarantees the instrument powers up instantly with no configuration latency, which matters in rack systems with strict boot-time requirements.
推薦
推薦產品摘要
工程參考資料，適用於 A42MX36-PQG208A — 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 | A42MX36-PQG208I | A42MX36-1PQG208 | A42MX36-FPQG208 | A42MX24-3PQG208I |
|---|---|---|---|---|---|
| Package | 208-BFQFP (PQFP-208) | 208-BFQFP - same | 208-BFQFP - same | 208-BFQFP - same | 208-BFQFP - same |
| Brand | Microchip Technology (Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 54000 | 54000 | 54000 | 54000 | 24000 |
| User I/O | 176 | 176 | 176 | 176 | 146 |
| Supply Voltage | 5.0 V | 5.0 V | 5.0 V | 5.0 V | 5.0 V |
| Programming Type | One-Time Programmable (antifuse) | One-Time Programmable | One-Time Programmable | One-Time Programmable | One-Time Programmable |
主要差異化特點
- Automotive temperature screening (對比A42MX36-PQG208I)
- Full 54K-gate density in PQFP-208 (對比A42MX24-3PQG208I)
- No configuration flash required (對比SRAM-based FPGA vendors)
設計說明
The A42MX36 requires a clean 5.0V supply. Provide bulk and 0.1uF ceramic decoupling at each VCC/GND pair on the 208-pin PQFP, and budget current per the Libero SoC power estimator for your design. When driving 3.3V I/O banks via MultiPlex I/O, verify bank voltage assignments so no 3.3V-only device receives 5V signaling.
MX devices are one-time programmable (antifuse): a design error cannot be corrected in-system. Complete full simulation and, ideally, prototype on the pin-compatible CQ208/PQ208 pair before final programming. Also note speed grade suffixes affect timing closure - re-run static timing when switching between A, 1, and MX39 grade devices.
The 208-pin PQFP has 0.5 mm-pitch leads; use a land pattern per the datasheet DS2316 package drawing with no-clean flux to avoid bridging. Keep PCI and high-speed clock traces impedance-controlled and short; distribute ground returns under the device with a solid plane on layer 2 for signal integrity at the 116 MHz internal clock rates.
合規資訊
Distributor listing (PCB Electronics Supply Chain) indicates LEAD FREE for A42MX36-PQG208A. AEC-Q100 qualification not stated in provided data; MX devices are specified for automotive temperature ranges but formal AEC-Q100 status is unknown.