A42MX24-1PQG208I - 36K Gate MX FPGA, 208-PQFP | Microchip
料号： A42MX24-1PQG208I ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
A42MX24-1PQG208I 概述
An FPGA (Field-Programmable Gate Array) is a semiconductor device containing a fabric of configurable logic blocks and programmable interconnects that the designer configures after manufacturing. Within the programmable logic hierarchy, the MX family sits as a low-cost, high-volume FPGA -> programmable logic device -> ASIC alternative, originally from Actel/Microsemi and now sold under Microchip Technology.
Key features include a flexible 5.0V/3.3V architecture with MultiPlex I/Os supporting mixed-voltage systems, programmable PCI support fully compliant with the PCI Local Bus Specification (version 2.1), low-power mode, and D-modules with wide-decode circuitry arranged around the device periphery providing fast, wide-input AND functions similar to CPLD architectures. S-modules and C-modules implement up to 8-input logic functions for efficient combinational and sequential design.
The 42MX architecture uses antifuse-based one-time-programmable technology, giving inherent resistance to configuration upset and making the device a reliable single-chip ASIC alternative for consolidating legacy PLDs into a single low-cost device. This makes the MX family popular in high-volume industrial, defense, and medical platforms where configuration volatility is undesirable.
Typical applications include industrial automation control, legacy PLD consolidation, glue logic integration, motor control interfaces, and mixed 5V/3.3V system bridging. The 176 I/O count and PCI compliance also support embedded bus interface designs.
Design consideration: because MX devices are one-time programmable, verify the bitstream thoroughly in simulation before programming; the 5V-tolerant MultiPlex I/O simplifies interfacing with legacy 5V logic but observe the 3.3V/5V supply sequencing guidance in datasheet DS2316.
直接替换替代料： A42MX24-1PQG208I ——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： A42MX24-1PQG208I （相同外形与封装尺寸） ——差异在于 Package, Logic Cells, System Gates, Operating Temperature, RoHS Status.
快速对比工具——选择替代料号进行并排对比：
A42MX24-1PQG208M
✅ 直接替换✓ 有现货
$43.2 / 个
查看数据手册 →A42MX24-PQG208I
✅ 直接替换📋 参考替代料（不在目录中）
A42MX16-1PQG208I
✅ 直接替换✓ 有现货
$299.95 / 个
查看数据手册 →A42MX36-1PQG208
✅ 直接替换✓ 有现货
$45.3 / 个
查看数据手册 →A42MX36-PQG208I
✅ 直接替换✓ 有现货
$55 / 个
查看数据手册 →A42MX24-1PQG208I 最大额定值与电气特性
| Family | MX (42MX) |
| System Gates | 36000 |
| Logic Cells | 912 |
| User I/O | 176 |
| Process Technology | 0.45 um |
| 电源电压 | 3.3 V / 5 V |
| Speed Grade | -1 |
| 工作温度 | -40C to +85C (Industrial) |
| 封装 | 208-BFQFP (PQFP), gull-wing |
| Terminal Count | 208 |
| 安装类型 | Surface Mount |
| Programming Technology | Antifuse (one-time programmable) |
| PCI Compliance | PCI Local Bus Specification v2.1 |
| Wide-Decode Modules | D-modules (CPLD-style wide AND) |
| Low Power Mode | Yes |
A42MX24-1PQG208I 引脚配置
| 引脚 1 | IO — User programmable I/O (bank 0) |
| 引脚 20 | VDD — Core supply (5.0V or 3.3V per configuration) |
| 引脚 21 | GND — Ground |
| 引脚 27 | CLOCK — Global clock input (HCLK) |
| 引脚 52 | VPP — Programming voltage supply (antifuse programming) |
| 引脚 78 | IO — User programmable I/O (bank 1) |
| 引脚 105 | GND — Ground |
| 引脚 130 | VDD — Core supply |
| 引脚 160 | IO — User programmable I/O (bank 2) |
| 引脚 200 | IO/GCLR — User I/O or global clear function |
典型应用
A42MX24-1PQG208I 适用于 6 应用s: Legacy PLD Consolidation, PCI Bus Interface Designs, Industrial Automation Control, Mixed 5V/3.3V System Bridging, Medical Equipment Logic, Defense and High-Reliability Logic.
Legacy PLD Consolidation
The A42MX24-1PQG208I is an ideal platform for integrating legacy PLDs, PALs, and GALs into a single low-cost device. Microchip positions MX as a high-volume, single-chip ASIC alternative; the 36K gates and 912 cells absorb multiple 22V10-class devices, while 5.0V-tolerant MultiPlex I/O connects directly to legacy TTL/5V buses without level shifters. Because the antifuse fabric is one-time programmable, replacement designs behave identically at every power-up, avoiding configuration-file management in fielded industrial equipment.
推荐
PCI Bus Interface Designs
The A42MX24 is fully compliant with the PCI Local Bus Specification version 2.1, so it can implement PCI target or basic master interfaces at both 5.0V and 3.3V signaling levels. The -1 speed grade supports the required PCI timing, and MultiPlex I/Os deliver programmable PCI drive characteristics. Placing the PCI state machine plus glue logic inside one 208-PQFP device removes discrete bus-interface components, reducing BOM cost and board area in industrial and embedded control backplane designs.
推荐
Industrial Automation Control
Industrial controllers benefit from the industrial temperature rating (-40C to +85C), 5V/3.3V mixed-voltage I/O, and low-power mode of the A42MX24-1PQG208I. D-modules arranged around the die periphery provide CPLD-style wide-input AND decode functions that accelerate address decoding, machine-state decoding, and safety-interlock logic. The antifuse fabric is immune to configuration upset from noise or brown-out events common on factory floors, and the 176 I/Os interface sensors, actuators, and legacy PLC backplanes directly.
推荐
Mixed 5V/3.3V System Bridging
Many retrofit systems combine a modern 3.3V processor with legacy 5V peripherals. The A42MX24 MultiPlex I/O architecture supports both 5.0V and 3.3V operation on the same die, letting one device bridge voltage domains while performing protocol translation or buffering. Designers partition banks between 5V-tolerant inputs and 3.3V outputs, eliminating bus-switch ICs. The 208-PQFP gull-wing package simplifies inspection and rework compared with BGA alternatives in repairable industrial boards.
推荐
Medical Equipment Logic
Medical devices with long service lives value the MX family's stable, non-volatile antifuse configuration and Microchip's long-standing support of the MX platform for continuity of supply. The A42MX24-1PQG208I implements interface glue logic, data-acquisition sequencing, and sensor-timing control in diagnostic equipment, while the deterministic one-time-programmable fabric eases design verification and regulatory documentation because the configured netlist cannot change in the field. The 36K-gate capacity covers typical control and interface blocks with margin.
推荐
Defense and High-Reliability Logic
Antifuse FPGAs are historically favored in defense and avionic platforms because the configuration is inherently non-volatile and resistant to configuration upset, with no external configuration PROM to attack or fail. The A42MX24-1PQG208I's industrial temperature range and one-time programming support high-reliability flow requirements, and the device consolidates discrete decode and interface logic to reduce part count. Designers compile with Microsemi Libero/Designer and verify timing before programming, since the antifuse cannot be reconfigured.
推荐
推荐产品汇总
工程参考数据： A42MX24-1PQG208I ——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 | A42MX24-1PQG208M | A42MX24-PQG208I | A42MX16-1PQG208I | A42MX36-1PQG208 | A42MX36-PQG208I |
|---|---|---|---|---|---|---|
| Package | 208-PQFP (PQG208) | 208-PQFP - same | 208-PQFP - same | 208-PQFP - same | 208-PQFP - same | 208-PQFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 36000 | 36000 | 36000 | Lower (A42MX16 die) | Higher (A42MX36 die) | Higher (A42MX36 die) |
| User I/O | 176 | 176 | 176 | 176 | 176 | 176 |
| Speed Grade | -1 | -1 | Standard | -1 | -1 | Standard |
| Supply Voltage | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V |
| PCI Compliance | PCI v2.1 | PCI v2.1 | PCI v2.1 | PCI v2.1 | PCI v2.1 | PCI v2.1 |
关键差异点
- Fastest -1 speed grade in the A42MX24 PQG208 family （对比 A42MX24-PQG208I)
- Balanced 36K-gate density （对比 A42MX16-1PQG208I)
- Lower cost than larger A42MX36 variants （对比 A42MX36-1PQG208)
设计说明
The A42MX24 operates from 5.0V and/or 3.3V supplies depending on I/O bank configuration. Follow the DS2316 datasheet power-up sequencing and decoupling guidance: place 0.1uF ceramic decoupling capacitors at each VDD pin pair and bulk capacitance near the board entry. The programming supply (VPP) is only required during antifuse programming and must be isolated per the datasheet notes in end-use systems.
MX antifuse devices are one-time programmable: a design that simulates clean but has marginal timing cannot be reconfigured. Run static timing analysis in Microsemi Libero/Designer with the -1 speed grade library before committing silicon, and verify the 5V/3.3V I/O standard assignment per bank, since MultiPlex I/O configuration is fixed at programming time.
The 208-PQFP gull-wing package requires attention to lead coplanarity and solder paste stencil design; use the DS2316 package drawing for land pattern dimensions. Tie unused I/O to defined logic levels or configure as outputs to avoid floating inputs, and keep the global clock (HCLK) trace short with a solid ground return for lowest jitter.
合规信息
Compliance data not present in provided web data. The -G suffix in PQG208 is generally associated with Microchip green/RoHS molding variants, but explicit certification data was not provided; verify on the Microchip product page.
