A42MX24-TQG176M - 36K Gate 5V MX FPGA, 176-TQFP | Microchip
MPN: A42MX24-TQG176M ✓ NakahandaA42MX24-TQG176M Ulas
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.
Mga alternatibo na pwedeng ilagay na A42MX24-TQG176M — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok A42MX24-TQG176M (parehas na form factor at footprint) — pagkakaiba sa Package, Process Technology, Supply Voltage, RoHS Status, System Gates.
A42MX24-1TQG176I
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →A42MX16-TQG176M
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →A42MX16-3TQG176
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →A42MX09-TQG176A
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →A42MX24-3TQ176I
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
A42MX24-TQG176M Mga Pinakamataas na Rating at Electrical Characteristics
| Family | MX (42MX) |
| System Gates | 36,000 |
| Logic Cells | 912 |
| Number of I/O | 150 |
| Volte ng Pagbibigay | 3.3 V / 5 V |
| Process Technology | 0.45 um |
| Programmability Type | Flash-based, non-volatile, reprogrammable |
| Packhaging | 176-TQFP (LQFP) |
| Uri ng Pagpapasok | Surface Mount |
| Special Blocks | D-modules with wide-decode circuitry |
| Packaging Suffix M | Tray packing |
| Tindminan RoHS | Lead Free (G = green/lead-free suffix) |
| Kategorya | FPGAs (Field Programmable Gate Array) |
| ASIC Alternative | Single-chip ASIC alternative, single-chip solution |
Gabay sa Pin Configuration ng A42MX24-TQG176M 176-tqfp (lqfp)
Pin configuration para sa A42MX24-TQG176M (176-tqfp (lqfp) package). Kasama sa digital IC na ito ang GPIO, mga communication interface (UART, SPI, I2C), at mga power pin. Sumangguni sa datasheet ng manufacturer para sa mga alternatibong function ng pin at mga opsyon sa configuration. Mahalaga para sa disenyo ng embedded system at PCB layout.
Wala ng detalyadong pinout data na magagamit para sa A42MX24-TQG176M.
Sumangguni sa datasheet para sa buong pin configuration.
Tipikal na mga Gamit
A42MX24-TQG176M ay nararapat para sa 6 aplikasyons: 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.
Inirekomenda
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.
Inirekomenda
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.
Inirekomenda
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.
Inirekomenda
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.
Inirekomenda
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.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for A42MX24-TQG176M — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | 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) |
Pangunahing mga Pagkakaiba
- 5V-tolerant flash FPGA fabric (kumpara saA42MX16-TQG176M)
- Highest speed grade availability (kumpara saA42MX24-1TQG176I)
- Green lead-free package code (kumpara saA42MX24-3TQ176I)
Talaan ng Disenyo
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.
Impormasyon ng Pagsunod sa Kautusan
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.
