A42MX24-TQG176A - 36K Gate 5V FPGA, 176-TQFP | Microchip
Référence : A42MX24-TQG176A ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $62.5 | $62,50 |
| 10 | $58.1 | $581,00 |
| 100 | $52.4 | $5 240,00 |
| 500 | $47.9 | $23 950,00 |
| 1 000 | $43.2 | $43 200,00 |
A42MX24-TQG176A Présentation
An FPGA (field programmable gate array) is a type of programmable logic device that implements user-defined digital circuits through configurable logic blocks and programmable interconnects. Within the semiconductor hierarchy, it sits under programmable logic, alongside CPLDs and ASICs. The MX family uses Microsemi antifuse technology, a one-time-programmable interconnect that provides non-volatile, single-chip operation without external configuration devices.
Key features include a flexible 5.0V architecture, 1890 logic cells organized into 912 configurable logic blocks (CLBs), and a maximum toggle-rate-oriented system performance suited to glue logic consolidation, legacy PLD integration, and industrial control. The antifuse fabric is inherently non-volatile and secure, with no bitstream to load at power-up, reducing BOM cost and configuration time compared to SRAM FPGAs.
Technically, the MX architecture combines Combinatorial Modules and Register Modules, allowing efficient implementation of wide combinatorial functions and registered pipelines. The die is fabricated on a CMOS process, and the TQG176A package is a 176-lead TQFP, 24x24 mm body, 0.5 mm lead pitch, surface mount.
Typical applications include legacy aerospace and industrial board redesigns, bus-interface logic consolidation, and single-chip replacements of multiple PLDs, PALs, and GALs in 5V systems.
Design consideration: because the device is antifuse-based (one-time programmable), a programming service or programmer step is required before assembly; plan your design freeze and programming flow accordingly.
Alternatives de remplacement direct pour A42MX24-TQG176A — 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 A42MX24-TQG176A (même facteur de forme et même empreinte) — différant par Package, Supply Voltage, RoHS Status, System Gates, Process Technology.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
A42MX24-TQG176M
✅ Remplacement direct✓ En stock
$54.9 / unité
Voir la fiche technique →A42MX24-1TQG176I
✅ Remplacement direct✓ En stock
$23.9 / unité
Voir la fiche technique →A42MX24-1TQG176X39
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
A42MX16-3TQG176
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$1 / unité
Voir la fiche technique →A42MX09-TQG176A
✅ Remplacement direct✓ En stock
$32.1 / unité
Voir la fiche technique →A42MX24-TQG176A Valeurs maximales et caractéristiques électriques
| Family | MX (42MX) |
| System Gates | 36000 |
| Logic Cells | 1890 |
| Configurable Logic Blocks (CLBs) | 912 |
| User I/O | 150 |
| Tension d'alimentation | 5.0 V |
| Process Technology | CMOS |
| Programmable Type | Antifuse (one-time programmable, non-volatile) |
| Fréquence d'horloge maximale | 105.5 MHz |
| Boîtier | 176-TQFP (TQG176) |
| Type de montage | Surface Mount |
| Configuration | Single-chip, no external configuration device |
| Lead Free | Yes (G suffix) |
Configuration des broches de A42MX24-TQG176A
| Broche 1 | IO — User input/output (assignable via Designer software) |
| Broche 23 | VCC — 5.0 V core supply |
| Broche 44 | GND — Ground |
| Broche 67 | IO — User input/output (assignable) |
| Broche 88 | VCC — 5.0 V supply pin |
| Broche 90 | GND — Ground pin |
| Broche 132 | IO — User input/output (assignable) |
| Broche 176 | IO — User input/output (assignable) |
Applications typiques
A42MX24-TQG176A convient pour 6 applications: Legacy 5V Industrial Control, Aerospace and Defense Legacy Sustainment, PLD and ASIC Prototyping Consolidation, Bus Interface and Glue Logic, Medical Equipment Legacy Boards, Security-Sensitive Embedded Systems.
Legacy 5V Industrial Control
The A42MX24-TQG176A fits industrial control boards still running 5V logic, where its native 5.0V architecture eliminates level shifters entirely. With 36,000 gates and 150 user I/Os, it consolidates multiple PLDs, PALs, and glue-logic devices into a single antifuse chip that powers up instantly with no configuration device. Placed on a 5V backplane with standard 74-series interfaces, the 105.5 MHz performance ceiling comfortably covers bus decoding, state machines, and interrupt handling while reducing board area and BOM count.
Recommandé
Aerospace and Defense Legacy Sustainment
Actel/Microsemi MX antifuse FPGAs have a long history in aerospace and defense programs because their one-time-programmable fabric is immune to configuration upsets and offers inherent bitstream security. The A42MX24-TQG176A allows program sustainment teams to keep producing qualified 5V boards without redesign. Its non-volatile single-chip operation removes configuration memory - a common radiation and security concern - while the 176-TQFP package supports straightforward reflow assembly in low-to-medium volume production runs.
Recommandé
PLD and ASIC Prototyping Consolidation
The MX family is positioned by Microchip as a single-chip ASIC alternative for high-volume designs. Designers use the A42MX24-TQG176A to consolidate multi-PLD logic into one 36K gate device before committing to an ASIC mask set, or as a low-risk bridging part during ASIC lead times. The antifuse fabric's deterministic timing simplifies timing closure at modest clock rates, and the absence of external configuration flash reduces cost at volumes where a $1-2 configuration device per unit becomes material.
Recommandé
Bus Interface and Glue Logic
With 150 user I/Os, the A42MX24-TQG176A handles wide parallel bus interfaces - ISA-style buses, processor local buses, and memory controllers - that modern low-voltage FPGAs cannot directly connect to. Registered paths through the MX Register Modules support pipeline stages at up to 105.5 MHz, while Combinatorial Modules implement wide decode functions efficiently. Typical usage includes address decoding, wait-state generation, byte-enable logic, and interrupt controllers on legacy embedded CPU boards.
Recommandé
Medical Equipment Legacy Boards
Installed-base medical instruments frequently contain 5V programmable logic that must be sustained for years of service contracts. The A42MX24-TQG176A provides a form-in-place replacement path: the same 176-TQFP footprint, identical programming methodology, and design files that have remained unchanged since original qualification. Because antifuse programming is permanent and single-chip, re-verification effort for regulatory re-qualification is minimized, and DigiKey's stocked inventory supports predictable service-parts availability.
Recommandé
Security-Sensitive Embedded Systems
Unlike SRAM FPGAs, the A42MX24's bitstream exists only once at programming time and cannot be read back or intercepted at power-up, making it attractive for copy-protection and anti-tamper designs. Systems integrating secure boot chains or proprietary algorithms in hardware use the MX24 as a hardened logic element. Combined with a 5V-tolerant I/O structure, it interfaces directly with older secure processors and EEPROMs without exposing additional attack surface through configuration interfaces.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour A42MX24-TQG176A — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | A42MX24-TQG176M | A42MX24-1TQG176I | A42MX16-3TQG176 | A42MX09-TQG176A |
|---|---|---|---|---|---|
| Package | 176-TQFP | 176-TQFP - same | 176-TQFP - same | 176-TQFP - same | 176-TQFP - same |
| Brand | Microsemi (Microchip Technology) | Microsemi (Microchip Technology) | Microsemi (Microchip Technology) | Microsemi (Microchip Technology) | Microsemi (Microchip Technology) |
| System Gates | 36000 | 36000 | 36000 | 24000 | 9000 |
| 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 |
Principaux différenciateurs
- 36K gate capacity in the same footprint (vs A42MX16-3TQG176)
- Faster speed grade options for timing closure (vs A42MX24-1TQG176I)
- Native 5.0V operation (vs Any SRAM FPGA (e.g., Xilinx Spartan))
Notes de conception
The MX family is one-time programmable antifuse silicon. You cannot reprogram or erase the device - a design change means a new programmed part. Freeze the design in Microchip Libero/Designer, complete full simulation and timing verification, and account for programming turnaround (in-house programmer or Microchip programming service) in your production schedule before releasing the PCB for assembly.
Provide clean 5.0V rails with local 0.1 uF ceramic decoupling at each VCC/GND pin pair of the 176-TQFP, plus bulk 10 uF per device. MX I/O switching of 150 simultaneously toggling outputs can generate significant ground bounce; use every GND pin and maintain solid ground planes. Verify the 105.5 MHz worst-case current from the MX family datasheet power calculator rather than estimating.
The 176-TQFP has 0.5 mm lead pitch - use solder-mask-defined pads with non-solder paste openings per IPC guidance for TQFP assembly, and add pull-back vias to avoid wicking. TQFP leads are fragile; handle trays carefully and inspect lead coplanarity before reflow. The G suffix indicates lead-free finish - confirm reflow profile compatibility (lead-free SAC alloy) in your process.
Informations de conformité
G suffix in TQG176A indicates lead-free per Microchip ordering convention; distributor listing notes LEAD FREE. Formal RoHS/REACH declarations not found in provided data.
