A42MX24-TQG176M - 36K Gate 5V MX FPGA, 176-TQFP | Microchip
MPN: A42MX24-TQG176M ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 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 |
Drop-in alternatives for A42MX24-TQG176M — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
A42MX24-1TQG176I
✅ Drop-In✓ In Stock
$23.9 / Unit
View Datasheet →A42MX16-TQG176M
✅ Drop-In✓ In Stock
$61.2 / Unit
View Datasheet →A42MX16-3TQG176
✅ Drop-In✓ In Stock
$1 / Unit
View Datasheet →A42MX09-TQG176A
✅ Drop-In✓ In Stock
$32.1 / Unit
View Datasheet →A42MX24-3TQ176I
✅ Drop-In📋 Reference alternative (not in catalog)
A42MX24-TQG176M Maximum Ratings & Electrical Characteristics
| Family | MX (42MX) |
| System Gates | 36,000 |
| Logic Cells | 912 |
| Number of I/O | 150 |
| Supply Voltage | 3.3 V / 5 V |
| Process Technology | 0.45 um |
| Programmability Type | Flash-based, non-volatile, reprogrammable |
| Package | 176-TQFP (LQFP) |
| Mounting Type | Surface Mount |
| Operating Temperature | [DATA_NEEDED: operating temperature range] |
| Special Blocks | D-modules with wide-decode circuitry |
| Packaging Suffix M | Tray packing |
| RoHS Status | Lead Free (G = green/lead-free suffix) |
| Category | FPGAs (Field Programmable Gate Array) |
| ASIC Alternative | Single-chip ASIC alternative, single-chip solution |
| Moisture Sensitivity Level | [DATA_NEEDED: MSL level] |
A42MX24-TQG176M 176-tqfp (lqfp) Pin Configuration Guide
Complete pinout information for A42MX24-TQG176M (176-tqfp (lqfp) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for A42MX24-TQG176M.
Refer to the datasheet for full pin configuration.
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
A42MX24-TQG176M is suitable for 6 applications: 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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
Recommended Products Summary
Engineering reference data for A42MX24-TQG176M — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 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 |
| User I/O | 150 | 150 | [DATA_NEEDED] | [DATA_NEEDED] | 150 |
| 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) |
| Temperature Range | Commercial [DATA_NEEDED: exact range] | Industrial | Commercial | A variant | Industrial |
| Packing | Tray (M) | [DATA_NEEDED] | Tray (M) | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- 5V-tolerant flash FPGA fabric (vs A42MX16-TQG176M)
- Highest speed grade availability (vs A42MX24-1TQG176I)
- Green lead-free package code (vs A42MX24-3TQ176I)
Design Notes
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.
Compliance Information
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.
