A42MX09-PLG84A - 14K Gate 5V FPGA, 84-PLCC | Microchip
MPN: A42MX09-PLG84A ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 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 A42MX09-PLG84A — 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:
A42MX09-PLG84M
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →A42MX09-3PLG84
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$22.8 / Unit
View Datasheet →A42MX09-2PLG84
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$23.9 / Unit
View Datasheet →A42MX09-3PLG84I
✅ Drop-In📋 Reference alternative (not in catalog)
A42MX16-2PLG84
⚡ Same Package✓ In Stock
$15.4 / Unit
View Datasheet →A42MX16-1PLG84I
⚡ Same Package✓ In Stock
$1 / Unit
View Datasheet →A42MX16-3PLG84
⚡ Same Package✓ In Stock
$1 / Unit
View Datasheet →A42MX09-PLG84A Maximum Ratings & Electrical Characteristics
| Family | MX (42MX) |
| System Gates | 14000 |
| Logic Cells | 336 |
| User I/O | 72 |
| Supply Voltage | 5 V |
| Max Frequency (cell) | 192 MHz |
| Clock-to-Out | 5.6 ns |
| Dual-Port SRAM | 2.5 kbits configurable |
| Dual-Port SRAM Access | 5 ns |
| FIFO Performance | 100 MHz |
| Process Technology | 0.45 um |
| Package | 84-PLCC (J-Lead), surface mount |
| Programming Technology | Antifuse, non-volatile |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lead Free Status | Lead Free |
| Operating Temperature | [DATA_NEEDED: operating temperature range] |
A42MX09-PLG84A Pin Configuration
| Pin 1-84 | PLCC-84 — Full 84-pin PLCC pinout with 72 user I/O, dedicated VCC, GND, and programming pins; see official Microchip MX family datasheet for exact pin map - [DATA_NEEDED: per-pin assignment] |
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
A42MX09-PLG84A is suitable for 6 applications: Legacy PLD Consolidation, Industrial Control Systems, ASIC Prototyping and Replacement, Defense and Avionics Upgrades, Automotive Electronics, Communications and Data Buffering.
Legacy PLD Consolidation
The A42MX09-PLG84A fits applications where multiple legacy PLDs, PALs, and glue-logic devices are integrated into a single 5V-tolerant chip. Its 14K gates and 72 user I/O absorb address decoding, bus interfacing, and state machines that previously occupied several packages. Because the MX antifuse fabric is non-volatile and active at power-up, no configuration PROM or boot sequence is required - a decisive advantage when retrofitting legacy boards. Consolidation reduces BOM count, board area, and assembly cost while preserving the original 5.0 V I/O signaling levels.
Recommended
Industrial Control Systems
Industrial controllers built around 5V buses benefit directly from the A42MX09-PLG84A. Its 5.0 V architecture interfaces natively with legacy TTL/CMOS sensors, actuators, and optocoupler front ends without level shifters, while 336 logic cells and 2.5 kbits of dual-port SRAM implement control sequencing, FIFO buffering, and handshaking logic. With 100 MHz FIFO capability and 5 ns SRAM access, it handles fast data-path tasks in factory automation equipment. The 84-PLCC J-lead package offers robust surface-mount reliability suited to vibration-prone industrial environments and straightforward rework.
Recommended
ASIC Prototyping and Replacement
As a single-chip ASIC alternative, the A42MX09-PLG84A serves both prototyping and permanent replacement of mask ASICs in mid-volume products. Antifuse programming locks the design once and for all - no configuration data is exposed, which matters for IP protection - while eliminating NRE charges and mask lead times of custom ASICs. The 0.45 um process supports 250 MHz-class performance in the family with 5.6 ns clock-to-out on the MX09 density, sufficient for many control and data-formatting functions originally targeted at gate arrays. Production quantities are available through standard distribution.
Recommended
Defense and Avionics Upgrades
Defense and avionics sustainment programs frequently must keep 5V legacy hardware alive. The A42MX09-PLG84A addresses this with a 5V, non-volatile antifuse architecture that survives radiation-tolerant screening options in the MX family and requires no configuration memory that could be corrupted. Its 14K gates replace obsolete bipolar and CMOS logic boards, and the ceramic-compatible PLCC-84 mounting supports existing sockets on older boards. Instant-on operation removes boot-time constraints in safety-related systems, and Microchip's long-lifecycle policy on MX devices supports multi-decade sustainment plans.
Recommended
Automotive Electronics
Distributor data lists the A42MX09-PLG84A as an automotive-rated member of the 42MX family. In vehicle applications it implements body-control glue logic, sensor conditioning interfaces, and protocol bridging on legacy 5V subsystems where 3.3V FPGAs would need extensive translation. The dual-port SRAM (5 ns access) supports buffered communication between ECUs and instrumentation, while antifuse non-volatility eliminates configuration flash that is vulnerable to noise transients in harsh electrical environments. Its 84-PLCC package withstands under-hood-adjacent thermal cycling with standard surface-mount assembly.
Recommended
Communications and Data Buffering
The MX09 dual-port SRAM and wide-decode resources suit communications line cards and data-formatting pipelines. With 5 ns dual-port access and 100 MHz FIFO capability, the A42MX09-PLG84A implements rate adaptation between 5V legacy interfaces and faster internal logic, plus address generation for packet buffering. Fast wide-decode circuitry (to 202 user-programmable I/O pins in the wider family, 72 on this package) enables rapid address mapping. Because it is non-volatile, line cards power up functional immediately after hot-swap, simplifying system-level bring-up in telecom shelves.
Recommended
Recommended Products Summary
Engineering reference data for A42MX09-PLG84A — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A42MX09-PLG84M | A42MX09-3PLG84 | A42MX09-2PLG84 | A42MX16-2PLG84 |
|---|---|---|---|---|---|
| Package | 84-PLCC (J-Lead) | 84-PLCC - same | 84-PLCC - same | 84-PLCC - same | 84-PLCC - same footprint |
| Brand | Microchip Technology (Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 14000 | 14000 | 14000 | 14000 | 24000 |
| User I/O | 72 | 72 | 72 | 72 | [DATA_NEEDED] |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V | 5 V |
| Speed Grade | Standard (-A) | Standard (M screening) | Speed 3 (fastest) | Speed 2 | Speed 2 (MX16 die) |
| Logic Cells | 336 | 336 | 336 | 336 | [DATA_NEEDED] |
| Temperature Range | Automotive grade (per distributor data) | Screening suffix (M) | Commercial/standard | Commercial/standard | Standard |
| Dual-Port SRAM | 2.5 kbits | 2.5 kbits | 2.5 kbits | 2.5 kbits | [DATA_NEEDED] |
Key Differentiators
- 5.0 V native I/O architecture (vs A42MX16-2PLG84)
- Non-volatile antifuse configuration (vs SRAM-based competitor FPGAs)
- Dual-port SRAM with 5 ns access and 100 MHz FIFO support (vs A42MX09-PLG84M)
Design Notes
The A42MX09-PLG84A operates from a single 5.0 V supply per MX family architecture. Decouple VCC with at least 0.1 uF ceramic per supply pin plus bulk 10 uF near the device. Because antifuse FPGAs draw no configuration current at power-up, inrush is dominated by I/O loading, but verify static and dynamic ICC against your utilization in the Microchip Designer timing/power reports rather than datasheet maxima.
The 84-PLCC J-lead package suits both socketed and direct surface-mount assembly. If using a PLCC socket for field-replaceable legacy upgrades, account for socket contact resistance and added lead inductance on fast (5.6 ns) clock-to-out paths. Keep ground return paths short beneath the package and avoid routing high-speed clocks on the J-lead corners where inductance is highest.
Three frequent mistakes with this part: (1) assuming bitstream compatibility with other A42MX09 order codes - verify the exact speed grade and die in your Libero/Designer project before programming; (2) forgetting that antifuse devices are one-time programmable - reserve engineering samples for iterations; (3) mixing the PLG84 (green/lead-free) with legacy non-G PL84 footprints in reflow profiles - the A-suffix/G package requires lead-free assembly temperatures.
Compliance Information
DigiKey/digchip data lists Lead Free Status: Lead Free and RoHS Status: RoHS Compliant. AEC-Q100 status not stated in provided data; distributor Jotrin describes the part as automotive-rated.
