A42MX24-1PQG208I - 36K Gate MX FPGA, 208-PQFP | Microchip
MPN: A42MX24-1PQG208I ✓ Active| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
Drop-in alternatives for A42MX24-1PQG208I — 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:
A42MX24-1PQG208M
✅ Drop-In✓ In Stock
$43.2 / Unit
View Datasheet →A42MX24-PQG208I
✅ Drop-In📋 Reference alternative (not in catalog)
A42MX16-1PQG208I
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$299.95 / Unit
View Datasheet →A42MX36-1PQG208
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$45.3 / Unit
View Datasheet →A42MX36-PQG208I
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$55 / Unit
View Datasheet →A42MX24-1PQG208I Maximum Ratings & Electrical Characteristics
| Family | MX (42MX) |
| System Gates | 36000 |
| Logic Cells | 912 |
| User I/O | 176 |
| Process Technology | 0.45 um |
| Supply Voltage | 3.3 V / 5 V |
| Speed Grade | -1 |
| Operating Temperature | -40C to +85C (Industrial) |
| Package | 208-BFQFP (PQFP), gull-wing |
| Terminal Count | 208 |
| Mounting Type | 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 |
| RoHS Status | [DATA_NEEDED: RoHS status] |
| Moisture Sensitivity Level | [DATA_NEEDED: MSL level] |
A42MX24-1PQG208I Pin Configuration
| Pin 1 | IO — User programmable I/O (bank 0) |
| Pin 20 | VDD — Core supply (5.0V or 3.3V per configuration) |
| Pin 21 | GND — Ground |
| Pin 27 | CLOCK — Global clock input (HCLK) |
| Pin 52 | VPP — Programming voltage supply (antifuse programming) |
| Pin 78 | IO — User programmable I/O (bank 1) |
| Pin 105 | GND — Ground |
| Pin 130 | VDD — Core supply |
| Pin 160 | IO — User programmable I/O (bank 2) |
| Pin 200 | IO/GCLR — User I/O or global clear function |
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
A42MX24-1PQG208I is suitable for 6 applications: 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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
Recommended Products Summary
Engineering reference data for A42MX24-1PQG208I — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 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) |
| Logic Cells | 912 | 912 | 912 | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| 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 |
| Operating Temperature | -40C to +85C (I) | [DATA_NEEDED] | -40C to +85C (I) | -40C to +85C (I) | [DATA_NEEDED] | -40C to +85C (I) |
| PCI Compliance | PCI v2.1 | PCI v2.1 | PCI v2.1 | PCI v2.1 | PCI v2.1 | PCI v2.1 |
Key Differentiators
- Fastest -1 speed grade in the A42MX24 PQG208 family (vs A42MX24-PQG208I)
- Balanced 36K-gate density (vs A42MX16-1PQG208I)
- Lower cost than larger A42MX36 variants (vs A42MX36-1PQG208)
Design Notes
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.
Compliance Information
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.
