A42MX24-TQG176M - 36K Gate 5V MX FPGA, 176-TQFP | Microchip
部品番号: A42MX24-TQG176M ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $78.5 | $78.50 |
| 10 | $71.2 | $712.00 |
| 100 | $64.8 | $6,480.00 |
| 500 | $59.4 | $29,700.00 |
| 1,000 | $54.9 | $54,900.00 |
A42MX24-TQG176M 概要
An FPGA (Field-Programmable Gate Array) is a class of programmable logic IC that implements user-defined digital circuits through configurable logic blocks and interconnect. Within the programmable logic hierarchy, the MX family sits as a single-chip ASIC alternative: unlike SRAM FPGAs it is non-volatile, and unlike antifuse families it is reprogrammable in-system. This positions MX as an ideal platform for integrating legacy PLDs, glue logic, and CPLDs into a single, low-cost, high-volume device.
Key features of the A42MX24 include 36K system gates, dual-voltage 3.3V/5V operation, and D-modules with wide-decode circuitry around the device periphery that provide fast, wide-input AND functions similar to CPLD architectures, enabling efficient state machines and address decoding. The architecture combines C-modules and S-modules for flexible combinational and sequential logic mapping.
Technically, the MX family uses a flexible 5.0V-tolerant fabric with 0.45um flash-based configuration storage, so designs retain their programming through power cycles without external configuration devices. The 176-TQFP package is a widely available gull-wing surface-mount format compatible with standard reflow assembly.
Typical applications include industrial control systems, military and defense upgrades of 5V-era designs, legacy PLD consolidation, bus interfacing, and high-volume embedded systems where a reliable single-chip ASIC alternative is required.
Design consideration: budget power distribution for the 3.3V/5V dual-rail requirements and verify I/O bank voltage assignments against the 40MX/42MX datasheet before pin locking.
ドロップイン代替品: A42MX24-TQG176M — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: A42MX24-TQG176M （同一形状・フットプリント） — 相違点: Package, Process Technology, Supply Voltage, RoHS Status, System Gates.
クイック比較ツール — 並列比較する代替部品を選択:
A42MX24-1TQG176I
✅ ドロップイン✓ 在庫あり
$23.9 / 個
データシートを見る →A42MX16-TQG176M
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$61.2 / 個
データシートを見る →A42MX16-3TQG176
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$1 / 個
データシートを見る →A42MX09-TQG176A
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$32.1 / 個
データシートを見る →A42MX24-3TQ176I
✅ ドロップイン📋 参考代替品（カタログ未掲載）
A42MX24-TQG176M 最大定格＆電気的特性
| Family | MX (42MX) |
| System Gates | 36,000 |
| Logic Cells | 912 |
| Number of I/O | 150 |
| 電源電圧 | 3.3 V / 5 V |
| Process Technology | 0.45 um |
| Programmability Type | Flash-based, non-volatile, reprogrammable |
| パッケージ | 176-TQFP (LQFP) |
| 実装タイプ | Surface Mount |
| Special Blocks | D-modules with wide-decode circuitry |
| Packaging Suffix M | Tray packing |
| RoHS ステータス | Lead Free (G = green/lead-free suffix) |
| カテゴリ | FPGAs (Field Programmable Gate Array) |
| ASIC Alternative | Single-chip ASIC alternative, single-chip solution |
A42MX24-TQG176M 176-tqfp (lqfp) ピン配置ガイド
A42MX24-TQG176M (176-tqfp (lqfp) パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: A42MX24-TQG176M.
詳細は データシート をご参照ください。
主な用途
A42MX24-TQG176M の用途: 6 件s: Legacy PLD and Glue Logic Consolidation, Industrial Control Systems, Military and Defense Legacy Upgrades, Bus Interfacing and Protocol Bridging, High-Volume Embedded Systems, State Machines and Sequencing Logic.
Legacy PLD and Glue Logic Consolidation
The A42MX24-TQG176M is explicitly positioned by Microchip as a platform for integrating legacy PLDs into a single, low-cost device. Its 36K system gates and 912 cells absorb multiple 22V10-class CPLDs, PALs, and GALs, while the 5.0V-tolerant fabric directly drives and receives 5V TTL-level signals that legacy boards use. D-modules with wide-decode circuitry provide fast wide-input AND functions similar to CPLD architectures, ideal for address decoding and chip-select generation. Because the fabric is flash-based and non-volatile, the replacement retains configuration at power-on without a boot PROM, simplifying BOM and startup behavior in service-critical legacy equipment.
おすすめ
Industrial Control Systems
In factory automation and motor control backplanes, 5V logic levels remain common, and the A42MX24's dual 3.3V/5V operation lets it interface directly with legacy sensors, drives, and PLC I/O cards without level shifters. The 150 user I/O in the 176-TQFP package provide ample parallel signal count for relay control, encoder interfaces, and status buses. The flash-based fabric tolerates the power interruptions typical of industrial environments and restarts deterministically. Designers should budget the device power supply for the 5V rail and verify I/O bank assignments per the 40MX/42MX datasheet before pin locking to avoid rework on the 4-layer control PCB.
おすすめ
Military and Defense Legacy Upgrades
Defense platforms originally designed around 5V Actel MX devices frequently require ongoing production replacements decades after original design. The A42MX24-TQG176M, descended from the Actel/Microsemi MX family, preserves the original architecture, timing, and 5.0V I/O characteristics so existing bitstreams port without redesign. The non-volatile flash configuration eliminates configuration-storage parts that fail screening, and the 0.45um mature process offers stable, documented long-term supply. Distributors including FTC Electronics and Microchip USA serve the defense channel for this MPN. For extended-temperature deploys, pair with the industrial-grade A42MX24-1TQG176I variant on the identical footprint.
おすすめ
Bus Interfacing and Protocol Bridging
The A42MX24's D-module wide-decode blocks give it CPLD-like wide-input decode speed, making it effective as a bridge between parallel buses (ISA-like backplanes, VME-adjacent boards, or proprietary 8/16-bit buses) and modern digital logic. With 150 I/O and 5V-tolerant pins, one device can terminate an entire legacy bus while presenting a clean 3.3V interface to a microprocessor. The 36K gate budget accommodates bus arbiters, wait-state generators, and interrupt controllers. Because MX is reprogrammable in-system, bus timing tweaks discovered during integration can be re-fitted without touching the PCB, shortening bring-up cycles on multi-revision hardware.
おすすめ
High-Volume Embedded Systems
Microchip markets MX as a high-volume, low-cost single-chip ASIC alternative. At 36K system gates, the A42MX24 replaces a mask ASIC for volumes where NRE cost cannot be justified, with the added benefit of field reprogrammability for post-shipment fixes. The 176-TQFP package is compatible with standard reflow assembly lines and widely supported by contract manufacturers. The M suffix tray packing suits high-speed pick-and-place lines ordering in thousands. Distributor data shows 7 Octopart-listed sources, ensuring supply-chain redundancy for multi-year production programs such as meters, gateways, and industrial instruments.
おすすめ
State Machines and Sequencing Logic
The MX architecture's combination of C-modules and S-modules maps wide state machines efficiently, and D-modules implement fast decode of state outputs for glitch-free control sequencing. In power-supply controllers and test fixtures, the A42MX24 sequences rails, generates enables, and monitors fault lines at 5V logic levels. The non-volatile flash configuration means the sequencer is active within microseconds of power application, earlier than an SRAM FPGA that must load configuration first, a decisive advantage in power-fault and brownout handling. With 36K gates there is ample room for counters, comparators, and fault-latch logic alongside the main sequencer.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: A42MX24-TQG176M — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | A42MX24-1TQG176I | A42MX16-TQG176M | A42MX09-TQG176A | A42MX24-3TQ176I |
|---|---|---|---|---|---|
| Package | 176-TQFP | 176-TQFP - same | 176-TQFP - same | 176-TQFP - same | 176-TQFP - same |
| Brand | Microchip Technology (Actel/Microsemi legacy) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 36,000 | 36,000 | 24,000 | 9,000 | 36,000 |
| 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 |
| Speed Grade | Standard (slowest bin) | -1 (one grade faster) | Standard | A variant | -3 (fastest) |
主な差別化要因
- 5V-tolerant flash FPGA fabric （vs A42MX16-TQG176M)
- Highest speed grade availability （vs A42MX24-1TQG176I)
- Green lead-free package code （vs A42MX24-3TQ176I)
設計ノート
The A42MX24 operates from dual 3.3V/5V rails. Decouple each supply with at least 0.1uF ceramic capacitors per power pin plus bulk 10uF near the device. The 5.0V-tolerant I/O banks must each be assigned a consistent voltage in Libero before routing; mixing 5V legacy signals and 3.3V logic on one bank risks exceeding I/O specifications. Measure inrush at power-up since the flash fabric draws configuration current briefly at startup.
The 176-TQFP gull-wing package requires a footprint per the Microchip/Microsemi MX datasheet mechanical drawing with 0.5mm lead pitch. Use a ground plane under the device and return each ground pin directly to it. For the M (tray) packing, ensure your assembly line moisture baking procedure follows the MSL rating on the moisture barrier bag label before reflow.
Do not confuse ordering-code suffixes: G = green/lead-free package, M = tray packing, I = industrial temperature, and the numeric prefix (-1, -2, -3) is the speed grade. A42MX24-3TQ176I lacks the G (non-green package) while sharing the die. Pin-lock early in Libero SoC because D-module wide-decode resources are located around the device periphery and pin assignments directly affect achievable decode timing.
コンプライアンス情報
G suffix denotes green/lead-free package. Distributor listings (Abacus Technologies) report EU RoHS compliant, REACH compliant, DRC conflict free. Not an automotive AEC-Q100 device.
