A42MX16-1PLG84I - 24K Gate MX FPGA, 84-PLCC | Microchip
N.º de pieza: A42MX16-1PLG84I ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $1 | $1,00 |
| 10 | $1 | $10,00 |
| 100 | $1 | $100,00 |
| 500 | $1 | $500,00 |
| 1.000 | $1 | $1.000,00 |
A42MX16-1PLG84I Descripción general
An FPGA (Field-Programmable Gate Array) is a semiconductor device containing configurable logic blocks (CLBs) and interconnects that the designer programs to implement custom digital circuits. Within the programmable logic hierarchy, the MX family sits in the legacy, low-cost FPGA segment, derived from the 40MX and 42MX families documented in the Microsemi A42MX16 datasheet (142 pages).
Key features include an efficient 5.0V-tolerant architecture, non-volatile antifuse programming with no external configuration PROM or boot time, and documented performance of up to 56.16 MHz maximum clock frequency with a maximum CLB combinatorial delay of 4.000 ns. The device provides 608 Configurable Logic Blocks (CLBs), making it well suited for glue logic consolidation, legacy PLD integration, and bus-interface functions.
Architecturally, the MX family uses a fine-grained sea-of-modules fabric programmed via antifuse elements, delivering instant-on behavior, high design security, and immunity to configuration bitstream readback - advantages over SRAM FPGAs for defense and industrial applications. The -1 speed grade indicates standard timing, with -2 and -3 grades offering faster variants of the same die.
Typical applications include legacy PLD consolidation in industrial controllers, embedded system glue logic, military/defense upgrades, and communication interface bridging. The 84-PLCC package suits through-hole-friendly rework environments and boards standardized on J-lead footprints.
Design consideration: because antifuse FPGAs are one-time-programmable, complete and simulate the design thoroughly before programming; plan for the 5.0V supply rail and verify I/O standard compatibility with surrounding logic.
Alternativas directas para A42MX16-1PLG84I — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con A42MX16-1PLG84I (mismo factor de forma y huella) — difiere en Package, Family, System Gates, Logic Cells, RoHS Status.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
A42MX16-2PLG84I
✅ Sustitución directa✓ En stock
$30.8 / unidad
Ver hoja de datos →A42MX16-1PLG84
✅ Sustitución directa✓ En stock
$44.2 / unidad
Ver hoja de datos →A42MX16-FPLG84I
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
A42MX16-3PLG84
✅ Sustitución directa✓ En stock
$1 / unidad
Ver hoja de datos →A42MX16-1PLG84I Valores máximos y características eléctricas
| Family | MX (Actel/Microsemi antifuse FPGA) |
| System Gates | 24000 |
| Configurable Logic Blocks (CLBs) | 608 |
| Number of I/O | 72 |
| Speed Grade | -1 |
| Frecuencia de reloj máxima | 56.16 MHz |
| CLB Combinatorial Delay (max) | 4.000 ns |
| Tensión de alimentación | 5.0 V |
| Programming Technology | Antifuse (one-time programmable) |
| Encapsulado | 84-LCC (J-Lead), PLCC-84 |
| Tipo de montaje | Surface Mount |
| Temperatura de funcionamiento | -40C to +85C (Industrial, I suffix) |
| Lead Free | Yes |
| Estado RoHS | Compliant |
| Configuration | Non-volatile, no external configuration device |
Configuración de pines de A42MX16-1PLG84I
| Pin 1-84 | USER I/O — 72 user-defined I/O distributed across the PLCC-84 ring; exact per-pin assignment defined in 40MX/42MX FPGA Families datasheet package tables |
| Pin - | VCC — 5.0 V core and I/O supply pins |
| Pin - | GND — Ground pins |
| Pin - | CLK — Dedicated global clock input(s) |
| Pin - | MODE — Programming/protocol control pin for antifuse programming |
Aplicaciones típicas
A42MX16-1PLG84I es adecuado para 6 aplicacións: Legacy PLD Consolidation, Industrial Control Systems, Defense and Aerospace Upgrades, Single-Chip ASIC Alternative, Communication Interface Bridging, Test and Measurement Fixturing.
Legacy PLD Consolidation
Microchip positions the MX family as the ideal platform for integrating legacy PLDs into a single, low-cost device. The A42MX16-1PLG84I's 24,000 system gates and 608 CLBs replace multiple PAL, GAL, and 22V10-type devices, while its 72 I/O absorb wide legacy bus interfaces. Because the antifuse fabric is non-volatile, consolidated designs power up instantly without a configuration PROM, cutting board area, BOM cost, and programming inventory. At 56.16 MHz maximum clock, it comfortably handles counters, state machines, and address decoding inherited from older systems.
Recomendado
Industrial Control Systems
The industrial temperature rating of the I suffix (-40C to +85C) makes the A42MX16-1PLG84I well suited for factory automation controllers, motor-drive interface boards, and sensor-gateway logic operating on unconditioned shop floors. The 5.0V architecture directly interfaces with legacy 5V TTL and CMOS peripherals common in industrial equipment, avoiding level-shift circuitry. The 84-PLCC J-lead package withstands thermal cycling and permits socketed or reworkable assembly, valuable for long-life industrial platforms serviced in the field over 10-20 year deployments.
Recomendado
Defense and Aerospace Upgrades
Antifuse FPGAs are favored in defense electronics because the programmed fabric cannot be read back, providing inherent design security unavailable in SRAM FPGAs. The A42MX16-1PLG84I suits obsolescence-driven upgrades of radar interface cards, secure-communication glue logic, and test-equipment fixturing. Its non-volatile, single-chip operation eliminates configuration-boot vulnerabilities and external configuration memory that could be attacked or fail in harsh environments. The metal-lidded 84-PLCC package supports conventional military-style assembly, rework, and socketing practices used in maintenance depots.
Recomendado
Single-Chip ASIC Alternative
Microchip markets MX as 'a reliable, single-chip ASIC alternative' for high-volume platforms. The A42MX16-1PLG84I delivers ASIC-like benefits - no NRE mask charges, instant one-time programming, and secure non-readable configuration - at FPGA economics. With 24,000 system gates, it absorbs modest custom logic such as protocol converters and custom bus bridges that would otherwise require a full-mask ASIC with long lead times. The antifuse interconnect also offers lower jitter and deterministic timing compared to SRAM FPGA routing, benefiting fixed-function high-volume designs.
Recomendado
Communication Interface Bridging
With 72 user I/O and 56.16 MHz maximum clock frequency, the A42MX16-1PLG84I implements parallel-bus bridges, serial-protocol converters, and backplane interface logic between incompatible subsystems. The 5.0V-tolerant architecture connects directly to legacy telecom and industrial line cards still operating at 5V CMOS levels, while the deterministic antifuse routing guarantees stable propagation delay - useful for bus-timing-critical interfaces where SRAM FPGA routing variance complicates timing sign-off. The one-time-programmed configuration also prevents field tampering of interface logic.
Recomendado
Test and Measurement Fixturing
Bed-of-nails fixtures, protocol emulators, and production test adapters benefit from the A42MX16-1PLG84I's instant-on antifuse configuration and 72 flexible I/O. Test engineers program each fixture variant once; the non-volatile fabric needs no download cable or host controller at test time, reducing fixture complexity and per-cycle overhead. The 84-PLCC package is socket-friendly, allowing quick fixture rework, and the industrial temperature rating tolerates unconditioned production-floor environments. Its 4.000 ns maximum CLB combinatorial delay supports timing-gated test sequences at moderate clock rates.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para A42MX16-1PLG84I — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | A42MX16-2PLG84I | A42MX16-1PLG84 | A42MX16-FPLG84I | A42MX16-1PQG100 |
|---|---|---|---|---|---|
| Package | 84-PLCC (J-Lead) | 84-PLCC (J-Lead) - same | 84-PLCC (J-Lead) - same | 84-PLCC (J-Lead) - same | 100-PQFP - different |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 24,000 | 24,000 | 24,000 | 24,000 | 24,000 |
| Speed Grade | -1 | -2 (faster) | -1 | -1 equivalent | -1 |
| Supply Voltage | 5.0 V | 5.0 V | 5.0 V | 5.0 V | 5.0 V |
| Programming Technology | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) |
Diferenciadores clave
- Industrial temperature with 5V-tolerant I/O (frente a A42MX16-1PLG84)
- Standard speed grade cost efficiency (frente a A42MX16-2PLG84I)
- Non-volatile antifuse configuration security (frente a Any SRAM FPGA (e.g., Xilinx Spartan))
Notas de diseño
The MX family operates from a single 5.0V rail. Decouple each VCC pin pair with at least 0.1uF ceramic capacitors placed within 5 mm of the pin, plus one bulk 10uF per device. Antifuse FPGAs draw no configuration surge current at power-up, but inrush from decoupling network and I/O charging should still be verified against the upstream regulator, especially in legacy 5V systems with limited current margin.
The A42MX16 is one-time-programmable (antifuse). Do not treat programming like an SRAM FPGA: run full timing simulation, verify I/O assignments against the 84-PLCC pin table in the 40MX/42MX datasheet, and program only a final validated bitstream. Always build at least 10-15% spare programmed units into production planning since a design change requires new parts. The I suffix guarantees only -40C to +85C - do not use commercial-temperature siblings in extended-temperature sockets.
The 84-PLCC J-lead footprint requires careful land-pattern design per IPC-SM-782 PLCC-84 geometry; J-leads need slightly larger pads than gull-wing parts for inspection access. Use a solid ground plane on the inner layer and connect all GND pins directly to it. Unused user I/O should be configured as inputs with pull-up or tied per Microchip Designer defaults to avoid floating-node metastability and excess supply current.
Keep global clock routing short and assign timing-critical signals to MX dedicated clock resources during pin assignment in Microchip Designer (Libero legacy flow). Because antifuse routing is fixed at programming time, route-and-pin assignment decisions are permanent; lock critical pins before final programming and reserve 10-15% of I/O as spares on the PCB to accommodate late fixes without respinning the board.
Información de cumplimiento
Distributor listings (PCB Electronics) identify the part as LEAD FREE; RoHS compliance per Microchip standard PLG84 finish. REACH/halogen details: obtain Microchip material declaration.
