A42MX24-PL84 - 36K Gate FPGA, 84-PLCC | Microchip Technology
MPN: A42MX24-PL84 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $194.4 | $194.40 |
| 10 | $184.68 | $1,846.80 |
| 100 | $174.96 | $17,496.00 |
| 500 | $165.24 | $82,620.00 |
| 1,000 | $155.52 | $155,520.00 |
Drop-in alternatives for A42MX24-PL84 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
A42MX24-PL84I
β Drop-Inπ Reference alternative (not in catalog)
A42MX24-1PL84M
β Drop-Inπ Reference alternative (not in catalog)
A42MX24-2PLG84IX39
β Drop-Inπ Reference alternative (not in catalog)
A42MX36-PL84
β Drop-Inπ Reference alternative (not in catalog)
A42MX09-PL84
β‘ Same Packageπ Reference alternative (not in catalog)
A42MX24-PL84 Maximum Ratings & Electrical Characteristics
| Family | 42MX (MX FPGA) |
| System Gates | 36000 |
| Logic Cells | 912 |
| User I/O | 72 |
| Process Technology | 0.45 um CMOS |
| Supply Voltage 1 | 3.0 V to 3.6 V |
| Supply Voltage 2 | 4.75 V to 5.25 V |
| Package | 84-LCC (J-Lead) / 84-PLCC |
| Mounting Type | Surface Mount |
| Programming Technology | Antifuse (non-volatile) |
| Module Types | C-modules, R-modules, D-modules (wide decode) |
| Operating Temperature | [DATA_NEEDED: operating temperature range] |
| Speed Grade | [DATA_NEEDED: speed grade] |
| Configuration Memory | Internal, non-volatile (no external config device required) |
| RoHS Status | unknown |
| MSL Level | [DATA_NEEDED: moisture sensitivity level] |
| Typical Applications | ASIC replacement, legacy PLD integration, 5V system interfacing |
A42MX24-PL84 84-lcc (j-lead) / 84-plcc Pin Configuration Guide
Complete pinout information for A42MX24-PL84 (84-lcc (j-lead) / 84-plcc 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-PL84.
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-PL84 is suitable for 6 applications: Legacy PLD Consolidation, Industrial Control Systems, ASIC Prototyping and Low-Volume Replacement, Aerospace and Defense Obsolescence Upgrades, Bus Interfacing and Glue Logic, Test and Measurement Equipment.
Legacy PLD Consolidation
The A42MX24-PL84 directly addresses Microchip's stated MX family mission: integrating legacy PLDs into a single low-cost device. Its 36,000 gates and 912 cells absorb multiple 22V10-class PAL/GAL devices and small CPLDs, while D-module wide-decode circuitry accelerates address decoding and chip-select functions. Dual 3.3V/5V supplies let the fabric interface directly with 5V legacy buses without level shifters, and antifuse non-volatile configuration eliminates external configuration memory, simplifying board-level replacement of older multi-chip logic clusters.
Recommended
Industrial Control Systems
Industrial controllers built around 5V logic benefit from the A42MX24-PL84's 4.75V-5.25V supply tolerance and 72 configurable I/O. The antifuse fabric gives instant-on operation - no configuration boot delay - which matters for machine safety interlocks and motor sequencing logic that must be valid at power-up. Its 0.45um process with mature reliability data suits long-lifecycle factory equipment, and deterministic routing supports fixed-timing state machines. According to the DS2316 datasheet, D-modules provide fast wide-input decode ideal for PLC I/O map decoding.
Recommended
ASIC Prototyping and Low-Volume Replacement
Microchip positions MX FPGAs as a reliable, single-chip ASIC alternative. For gate arrays between roughly 10K and 50K gates where ASIC NRE is unjustified, the A42MX24-PL84 provides one-time-programmable implementation with ASIC-like security - the configured bitstream cannot be extracted, unlike SRAM FPGAs. At 36,000 gates and 912 cells it suits medium-glue-logic ASIC replacements. The PLCC-84 package supports socketed prototyping, and pricing near $194 as of 2026-08-30 makes low-volume runs economically viable versus mask-charge ASICs.
Recommended
Aerospace and Defense Obsolescence Upgrades
The 42MX family includes military temperature variants (A42MX24-1PL84M, -55C to +125C per Microchip USA), making the family a standard choice for defense platforms extending the life of legacy 5V systems. Antifuse devices are inherently radiation-tolerant in configuration (no configuration memory upset) and require no external boot device, improving system-level reliability. When an obsolete Actel 1200XL or 3200DX must be replaced, Microchip's migration application note recommends 42MX equivalents, frequently available in matching packages, preserving PCB footprints in military hardware.
Recommended
Bus Interfacing and Glue Logic
With 72 user I/O and CPLD-style wide-decode D-modules, the A42MX24-PL84 excels at bus bridging, address decoding, wait-state generation, and interrupt control between microprocessors and peripherals. The 3.3V/5V dual-supply architecture allows a single device to straddle a 5V microprocessor bus and 3.3V peripheral bank without external translators - eliminating several SN74LVC translation devices per design. Deterministic pin-to-pin delays in the antifuse fabric let designers meet hard setup/hold budgets that timing-closure-challenged SRAM FPGAs may not guarantee on small designs.
Recommended
Test and Measurement Equipment
Bench instruments and automated test fixtures need reconfigurable sequencing, trigger logic, and interface handshaking that the A42MX24-PL84 supplies economically. Instant-on antifuse configuration ensures test stimulus logic is live immediately at power-up, and the 5V rail compatibility matches older instrumentation backplanes. At 36,000 gates the fabric comfortably hosts timing generators, comparator-latch interfaces, and protocol formatters. The PLCC-84 J-lead package simplifies socketed in-circuit replacement during instrument service, an advantage over fine-pitch BGA alternatives.
Recommended
Recommended Products Summary
Engineering reference data for A42MX24-PL84 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A42MX24-PL84I | A42MX24-1PL84M | A42MX24-2PLG84IX39 | A42MX36-PL84 |
|---|---|---|---|---|---|
| Package | 84-PLCC | 84-PLCC - same | 84-PLCC - same | 84-PLCC (PLG) - same footprint | 84-PLCC - same |
| Brand | Microchip Technology (Microsemi/Actel) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 36000 | 36000 | 36000 | 36000 | 54000 |
| Logic Cells | 912 | 912 | 912 | 912 | 1440 |
| User I/O | 72 | 72 | 72 | 72 | 72 |
| Temperature Range | [DATA_NEEDED: commercial range] | Industrial | -55C to +125C (TC) | Industrial (I) | [DATA_NEEDED] |
| Supply Voltage | 3.0-3.6V / 4.75-5.25V | 3.0-3.6V / 4.75-5.25V | 3.0-3.6V / 4.5-5.5V | [DATA_NEEDED] | 3.0-3.6V / 4.75-5.25V |
| Speed Grade | [DATA_NEEDED: base speed grade] | [DATA_NEEDED] | -1 | -2 | [DATA_NEEDED] |
Key Differentiators
- Dual 3.3V/5V supply architecture (vs Xilinx Spartan SRAM FPGAs)
- Non-volatile antifuse configuration (vs SRAM-based FPGAs)
- D-module wide-decode fabric (vs A42MX09-PL84)
- Trade-off: mature 0.45um process (vs Modern 28nm FPGAs)
Design Notes
The A42MX24-PL84 requires two supply rails: 3.0-3.6V and 4.75-5.25V (per Microchip USA product data). Decouple each rail with at least 0.1uF ceramic plus 10uF bulk per device, placed close to the PLCC power pins. Per the 40MX/42MX datasheet DS2316, follow the specified power-up requirements for the dual rails to avoid latch-up in the 0.45um process; check the datasheet power sequencing section before finalizing the supply design.
The MX family is antifuse one-time-programmable: a programmed device cannot be reprogrammed. Fully verify the netlist via simulation and timing analysis in Libero/Designer before committing production devices. Reserve any required future revisions by ordering unprogrammed parts. Also confirm the exact speed grade suffix when purchasing - speed grades are ordered-code specific and not field-upgradable.
PLCC-84 J-lead pads require the correct footprint per the DS2316 mechanical drawing (about 0.65mm lead width, 1.27mm pitch). For socketed prototypes use only PLCC sockets specified for 84-position J-lead devices, as poor socket contacts cause intermittent I/O failures. Keep high-fanout decode nets (D-module outputs) short to exploit the wide-decode speed advantage.
When migrating from Actel 1200XL/3200DX devices, consult Microchip's 'Migrating From 1200XL and 3200DX to 42MX FPGAs' application note: most equivalent packages exist, but some legacy packages have no 42MX equivalent, forcing a package change. Verify I/O assignments map to compatible MX bank locations during porting.
Compliance Information
Compliance status not stated in verified web data; confirm on the official Microchip product page compliance summary for the exact ordering code.
