A42MX16-2PLG84I - 24K Gate MX FPGA, 84-PLCC | Microchip
N.º de pieza: A42MX16-2PLG84I ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $45.2 | $45,20 |
| 10 | $41.3 | $413,00 |
| 100 | $37.6 | $3.760,00 |
| 500 | $34.1 | $17.050,00 |
| 1.000 | $30.8 | $30.800,00 |
A42MX16-2PLG84I Descripción general
An FPGA (Field Programmable Gate Array) is a semiconductor device containing a fabric of configurable logic blocks and interconnects that the designer programs after manufacturing, sitting in the programmable-logic hierarchy between CPLDs and high-density SoC FPGAs. The Microchip (formerly Actel/Microsemi) MX family is a 5.0V-tolerant, antifuse-based one-time-programmable architecture, positioning it as a reliable single-chip ASIC alternative for integrating legacy PLD and glue-logic designs into a single low-cost device.
Key characteristics include dual voltage supply operation (3V to 3.6V core and 4.5V to 5.5V I/O ranges per device documentation), one-time programmable antifuse technology that retains configuration without external boot memory, and 72 dedicated user I/O pins. Because the configuration is hard-wired at programming, the device is immune to configuration readback attacks and does not require a configuration PROM, improving system reliability and board BOM cost.
The MX architecture combines efficient logic modules with dedicated routing resources, enabling designers to consolidate legacy PAL, GAL, and CPLD functions. As a mature high-volume platform, the A42MX16 is widely used in industrial control, aerospace/defense retrofits, telecommunications line cards, and medical equipment where design continuity matters more than leading-edge density.
Typical applications include legacy PLD consolidation, bus-interface bridge logic, industrial automation control panels, and radiation-tolerant heritage system sustenance where the antifuse fabric provides instant-on, secure configuration.
Design tip: because MX devices are one-time programmable, verify the design fully in simulation (Libero SoC tools) before programming; the -2 speed grade should be confirmed against your worst-case timing closure, or choose the faster -1 grade if timing margins are tight.
Alternativas directas para A42MX16-2PLG84I — 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 A42MX16-2PLG84I (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:
A42MX16-1PLG84
✅ Sustitución directa✓ En stock
$44.2 / unidad
Ver hoja de datos →A42MX16-FPLG84
✅ Sustitución directa✓ En stock
$21.5 / unidad
Ver hoja de datos →A42MX16-PLG84I
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
A42MX16-2PLG84C
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
A42MX09-PLG84
⚡ Mismo encapsulado ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
A42MX16-2PLG84I Valores máximos y características eléctricas
| System Gates | 24000 |
| Family | MX FPGA |
| Number of I/O | 72 |
| Speed Grade | -2 |
| Supply Voltage (Core) | 3 V to 3.6 V |
| Supply Voltage (I/O) | 4.5 V to 5.5 V |
| Temperatura de funcionamiento | -40C to +85C |
| Programmability | One-Time Programmable (antifuse) |
| Encapsulado | 84-LCC (J-Lead / PLCC) |
| Tipo de montaje | Surface Mount |
| Configuration Memory | Internal (no external boot PROM required) |
| Estado RoHS | Lead Free |
| Embedded Memory | None (logic only, MX16 fabric) |
| Development Software | Microchip Libero SoC |
Configuración de pines de A42MX16-2PLG84I
| Pin 1 | IO — User input/output (bank assignment per datasheet) |
| Pin 12 | VCC — Core supply (3V-3.6V) |
| Pin 22 | GND — Ground |
| Pin 26 | VPP — Programming voltage supply pin |
| Pin 33 | CLKA — Dedicated global clock input |
| Pin 42 | CLKB — Dedicated global clock input |
| Pin 55 | IO — User input/output |
| Pin 63 | RESET — Dedicated system reset input |
| Pin 72 | IO — User input/output |
| Pin 84 | GND — Ground |
Aplicaciones típicas
A42MX16-2PLG84I es adecuado para 6 aplicacións: Legacy PLD Consolidation, Industrial Automation Control, Aerospace and Defense Heritage Systems, Telecommunications Line Cards, Medical Equipment Sustenance, Secure Embedded Controllers.
Legacy PLD Consolidation
The MX family is explicitly designed as a single-chip ASIC alternative for integrating legacy PAL, GAL, and CPLD devices. The A42MX16-2PLG84I provides 24,000 system gates and 72 user I/O in a 5.0V-tolerant architecture, allowing multiple discrete 20- and 24-pin PLDs to be absorbed into one 84-PLCC device. Because its antifuse configuration is permanent and requires no boot PROM, the consolidated design retains instant-on behavior identical to the original PLDs while cutting BOM count, board area, and inventory SKUs, which is decisive when sustaining legacy industrial and telecom platforms.
Recomendado
Industrial Automation Control
In factory automation panels and PLC I/O cards, the A42MX16-2PLG84I fits because its industrial rating of -40C to +85C covers full industrial ambient range, and the 4.5V-5.5V tolerant I/O supply interfaces directly with 5V TTL field logic common on installed equipment. The 24K-gate fabric implements bus arbitration, encoder decoding, and interlock logic with deterministic, glitch-free antifuse routing. One-time programming eliminates configuration corruption risks from power glitches, a common field failure in SRAM FPGA industrial boards, improving mean time between failures in continuously operating machinery.
Recomendado
Aerospace and Defense Heritage Systems
Aerospace and defense sustainment programs frequently need to reproduce discontinued logic boards. The A42MX16-2PLG84I supports this because the antifuse fabric has no configuration readback path, providing inherent protection against reverse engineering, and its one-time-programmed nets are immune to SEU-induced configuration upset compared with SRAM FPGAs. The 84-PLCC J-lead package is mechanically robust and available in industrial grade, matching heritage board formats. Design teams can re-author legacy netlists in Libero SoC and reprogram identical footprints to extend platform service life.
Recomendado
Telecommunications Line Cards
Telecom line-card designs use the A42MX16-2PLG84I for framing glue logic, backplane interface bridging, and timing distribution. The 5.0V-tolerant MX architecture connects directly to legacy TTL-level backplanes such as 5V VME and H.110 derivative hardware without level shifters, saving board area and cost. Its deterministic antifuse delays support predictable setup/hold timing against backplane clocks, and the -2 speed grade suits moderate clock rates typical of legacy line cards. The one-time-programmed configuration also eliminates boot-time configuration loading on the shared backplane.
Recomendado
Medical Equipment Sustenance
Medical imaging and monitoring platforms built in the 1990s and 2000s rely on 5V FPGA logic for interface and control. The A42MX16-2PLG84I sustains these designs because Microchip maintains the MX family for long-lifecycle platforms, giving repair organizations a valid source for replacement logic. Its antifuse programming means a stocked spare is always ready with no configuration media, and the industrial temperature range covers equipment thermal envelopes. Hospitals and service depots can reproduce the original PLG84 footprint without PCB redesign, keeping certification documentation intact.
Recomendado
Secure Embedded Controllers
Applications requiring design IP protection choose the A42MX16-2PLG84I because antifuse one-time programming provides no mechanism to read back the programmed netlist, unlike SRAM FPGAs whose bitstreams can be intercepted. Once programmed, the configuration also needs no external boot flash, removing the most common attack and reliability surface. The 24K-gate capacity implements state machines, authentication glue logic, and tamper-response circuits, while the dual-rail supply supports mixed 5V I/O with a lower-voltage core for reduced power in always-on secure enclosures.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para A42MX16-2PLG84I — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | A42MX16-1PLG84 | A42MX16-FPLG84 | A42MX16-2PLG84C | A42MX09-PLG84 |
|---|---|---|---|---|---|
| Package | 84-LCC (PLCC, J-Lead) | 84-LCC (PLCC) - same | 84-LCC (PLCC) - same | 84-LCC (PLCC) - same | 84-LCC (PLCC) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 24000 | 24000 | 24000 | 24000 | 9000 |
| Architecture | Antifuse OTP, 5.0V tolerant | Antifuse OTP - same | Antifuse OTP - same | Antifuse OTP - same | Antifuse OTP - same |
| External Boot Memory Required | No | No | No | No | No |
Diferenciadores clave
- Industrial temperature grade (frente a A42MX16-2PLG84C)
- Same die, lower speed grade economics (frente a A42MX16-1PLG84)
- No external configuration memory needed (frente a SRAM FPGAs)
Notas de diseño
MX antifuse devices are one-time programmable. Complete full functional simulation and static timing analysis in Microchip Libero SoC before committing the device to programming; a programming error or late timing violation means the physical part must be scrapped. Verify the -2 speed grade meets your worst-case timing corner, or select the -1 grade for margin. Also confirm VPP programming supply availability on your programming hardware fixture.
The device operates from a core supply (3V-3.6V per device documentation) with 5V-tolerant I/O operation. Provide solid decoupling: at least 0.1uF ceramic per supply pin pair plus 10uF bulk per rail. Because antifuse fabrics draw low static current, power budgeting is dominated by dynamic switching; reduce simultaneous switching on the 72 I/O or add series termination on heavy bus loads to limit ground bounce on the PLCC leadframe, which has higher inductance than QFN packages.
The 84-PLCC J-lead package supports both socketed and direct SMD mounting. For new designs, solder directly to the PCB and pour ground plane under the device to reduce leadframe inductance effects on signal integrity. If a socket is required for field programming, choose a zero-insertion-force PLCC socket rated for the industrial temperature range and account for the additional 1-2pF per pin loading in timing analysis.
Información de cumplimiento
Distributor listings (PCB Electronics, Datasheet Directory) explicitly mark the part as LEAD FREE. REACH and halogen-free status not stated in provided data.
