A42MX16-2PLG84 - 24K Gate FPGA, 84-PLCC | Microchip
Référence : A42MX16-2PLG84 ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $24.5 | $24,50 |
| 10 | $22.1 | $221,00 |
| 100 | $19.8 | $1 980,00 |
| 500 | $17.6 | $8 800,00 |
| 1 000 | $15.4 | $15 400,00 |
A42MX16-2PLG84 Présentation
An FPGA is a reprogrammable semiconductor device whose logic function is defined by the designer rather than fixed at fabrication. As a member of the FPGA and programmable logic hierarchy, the MX family sits alongside CPLDs and ASICs as a single-chip integration platform; Microchip (formerly Microsemi and Actel) positions MX as a low-cost, high-volume ASIC alternative for consolidating legacy PLD designs.
Key features include the 5.0V-tolerant MX architecture suited to replacing older 5V PLD systems, a reliable single-chip ASIC alternative with low NRE cost, and 72 flexible user I/O supporting both 3.3V and 5.0V signaling. The JESD-30 coded S-PQCC-J84 package simplifies socket-based prototyping and rework, making it popular for legacy board maintenance.
Architecturally, the MX family combines combinational and sequential logic modules within each CLB, offering efficient logic mapping and predictable timing. Devices in the 42MX family support JTAG boundary scan testing per IEEE Standard 1149.1 on related family members, enabling board-level test coverage.
Typical applications include legacy industrial control systems, communications equipment obsolescence management, glue-logic consolidation, and replacement of multiple discrete PLDs and SSI/MSI devices in long-lifecycle military and industrial programs.
Design consideration: the MX family is a mature product line, so verify long-term supply status and consider the fuse-based versus SRAM programming model implications for configuration time and security before committing new designs.
Alternatives de remplacement direct pour A42MX16-2PLG84 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec A42MX16-2PLG84 (même facteur de forme et même empreinte) — différant par Family, Package, System Gates, RoHS Status, Process Technology.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
A42MX16-1PLG84
✅ Remplacement direct✓ En stock
$44.2 / unité
Voir la fiche technique →A42MX16-3PLG84
✅ Remplacement direct✓ En stock
$1 / unité
Voir la fiche technique →A42MX16-2PLG84I
✅ Remplacement direct✓ En stock
$30.8 / unité
Voir la fiche technique →A42MX09-PLG84M
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
Contactez-nous pour le prix
Voir la fiche technique →A42MX24-3PLG84
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$44.2 / unité
Voir la fiche technique →A42MX24-2PLG84I
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$55.4 / unité
Voir la fiche technique →A42MX16-2PLG84 Valeurs maximales et caractéristiques électriques
| Family | 42MX FPGA |
| System Gates | 24000 gates |
| Configurable Logic Blocks (CLBs) | 608 |
| Number of I/O | 72 |
| Speed Grade | -2 |
| Fréquence d'horloge maximale | 117 MHz |
| Process Technology | 0.45 um CMOS |
| Tension d'alimentation | 3.3 V / 5 V |
| Boîtier | 84-LCC (J-Lead) PLCC-84 |
| JESD-30 Code | S-PQCC-J84 |
| Type de montage | Surface Mount |
| Programmable Type | In-System Programmable |
| JTAG Support | IEEE 1149.1 (family members 42MX24/42MX36) |
| Statut RoHS | Lead Free |
Configuration des broches de A42MX16-2PLG84
| Broche 1 | IO — User I/O (PLG84 pin assignments per DS2136 datasheet - verify exact pin map in datasheet Table) |
| Broche 10 | VCC — Core supply (3.3V or 5V per configuration) |
| Broche 21 | GND — Ground |
| Broche 42 | IO/VREF — User I/O or reference voltage |
Applications typiques
A42MX16-2PLG84 convient pour 6 applications: Legacy PLD Consolidation, Industrial Control Systems, Obsolescence Management for Communications Equipment, Glue Logic Integration, Military and High-Reliability Programs, Test and Measurement Instrument Sustainment.
Legacy PLD Consolidation
The MX family was explicitly designed by Microchip as a single-chip ASIC alternative with a 5.0V-tolerant architecture, making the A42MX16-2PLG84 ideal for replacing multiple legacy 5V PLDs, GALs, and SSI/MSI logic devices on aging boards. With 24,000 gates and 608 CLBs, it absorbs dozens of older devices into one IC, cutting board area, BOM cost, and solder joints. The 72 user I/O support both 3.3V and 5V signaling levels, so interfacing with unchanged 5V-era peripherals requires no level shifting.
Recommandé
Industrial Control Systems
Industrial controllers benefit from the A42MX16-2PLG84's 5V/3.3V dual-supply I/O tolerance and mature, field-proven MX architecture. The 117 MHz maximum toggle frequency on the -2 grade comfortably handles state machines, motor sequencing logic, and interface bridging in PLC I/O cards. The 84-PLCC J-lead package withstands industrial assembly processes and simplifies rework on through-hole-transition boards; the industrial-temperature A42MX16-2PLG84I variant extends operation for harsh enclosures.
Recommandé
Obsolescence Management for Communications Equipment
Telecom and datacom systems from the 1990s frequently used Actel MX FPGAs, and the Microchip-branded A42MX16-2PLG84 is the identical silicon continuing that supply. It replaces discontinued Actel/Microsemi A42MX16 stock without design changes - same footprint, pinout, and timing model. Design teams can port existing Libero/Designer projects directly, making this the lowest-risk sourcing path for sustainment of fielded switching, transmission, and test equipment.
Recommandé
Glue Logic Integration
Board-level glue logic - bus transceivers, decoders, address latches, wait-state generators - maps efficiently into the 608 CLBs of the A42MX16-2PLG84. Consolidating discrete 74-series logic into one FPGA shortens propagation paths, reduces timing skew, and frees PCB area. The 72 I/O provide enough pins for a full 16-bit or 32-bit bus interface with control signals, and the 5V-tolerant architecture lets the FPGA sit directly on legacy TTL-compatible buses without buffers.
Recommandé
Military and High-Reliability Programs
The MX family has a long heritage in military and avionics sustainment, with Microchip continuing supply of temperature-qualified and M-suffix variants in the same 84-PLCC footprint. The A42MX09-PLG84M provides a military-grade flow for programs requiring that designation, while the standard A42MX16-2PLG84 serves commercial-temperature high-reliability builds. Long product lifecycles and documented revision history make the MX line a low-risk choice for fielded platforms needing decades of spares.
Recommandé
Test and Measurement Instrument Sustainment
Bench instruments and automated test equipment built around 5V logic rely on the A42MX16-2PLG84 for controller-interface logic, timing generators, and scan chains. The -2 speed grade's 117 MHz toggle capability supports counter/timer and trigger logic, while the J-lead PLCC package allows socketed prototyping during instrument repair and recalibration. Using the Microchip-continued part avoids board respins on instruments whose analog front ends remain fully serviceable.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour A42MX16-2PLG84 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | A42MX16-1PLG84 | A42MX16-3PLG84 | A42MX16-2PLG84I | A42MX24-3PLG84 | A42MX09-PLG84M |
|---|---|---|---|---|---|---|
| Package | 84-PLCC (PLG84) | 84-PLCC - same | 84-PLCC - same | 84-PLCC - same | 84-PLCC - same | 84-PLCC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 24,000 | 24,000 | 24,000 | 24,000 | 36,000 | 9,000 |
| Speed Grade | -2 (117 MHz) | -1 (slower) | -3 (faster) | -2 (117 MHz) | -3 | -M grade |
| User I/O | 72 | 72 | 72 | 72 | 69 | 69 |
| 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 |
Principaux différenciateurs
- Balanced mid-range density and cost (vs A42MX24-3PLG84)
- Faster timing than -1 grade at modest premium (vs A42MX16-1PLG84)
- Industrial-temperature availability on identical silicon (vs A42MX16-2PLG84I)
Notes de conception
The MX architecture uses a dual 3.3V/5V supply scheme. Verify per-bank I/O voltage assignments against DS2136 before layout, and decouple each VCC pin pair with 0.1uF ceramic capacitors placed within 2 mm of the package, plus one bulk 10uF per rail. Because PLCC packages have relatively high inductance leads, a solid ground connection on multiple GND pins reduces ground bounce when many 5V-tolerant outputs switch simultaneously.
The 84-PLCC J-lead footprint requires the JEDEC PLCC-84 land pattern with leads protruding beyond the body. For socketed prototypes use a PLCC-84 socket, but note sockets add inductance and can degrade signal integrity above roughly 50 MHz toggle rates. For production, solder directly to the board and provide at least one full GND plane under the device for return-current integrity.
Do not mix speed grades without re-running timing analysis: the -1 grade has slower clock-to-out and setup times than the -2. Also confirm that your design's programming flow matches the MX fuse/antifuse programming model supported by Microchip Libero/Designer tools, and verify long-term supply commitments since MX is a mature product line - secure lifetime-buy quotes for long-lifecycle programs.
Informations de conformité
Distributor data (PCB Electronics) lists A42MX16-2PLG84 as LEAD FREE. REACH and halogen-free status not stated in provided data.
