A42MX16-2VQG100I - 24K Gate 5V FPGA TQFP-100 | Microchip
MPN: A42MX16-2VQG100I ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $32.5 | $32.50 |
| 10 | $29.6 | $296.00 |
| 100 | $26.1 | $2,610.00 |
| 500 | $23.4 | $11,700.00 |
| 1,000 | $20.8 | $20,800.00 |
A42MX16-2VQG100I Overview
A field-programmable gate array (FPGA) is an integrated circuit containing an array of programmable logic blocks and interconnects that the designer configures after manufacturing. Within the programmable logic hierarchy, the MX family sits under Actel/Microsemi antifuse-based FPGAs, providing a reliable, single-chip ASIC alternative for high-volume systems and for consolidating legacy PLDs into one low-cost device.
Key features include an efficient 5.0V-tolerant architecture, 83 user I/Os on this package option, and antifuse programmability that delivers non-volatile, live-at-power-up operation without an external configuration ROM. The 42MX family combines combinational and sequential logic modules, embedded dual-port SRAM capability in larger family members, and boundary-scan (JTAG, TDI-to-TDO chain) testing support per the Microsemi 40MX/42MX datasheet (DS2316).
Technically, the device uses Actel's proven 0.45 um antifuse technology, which yields high immunity to configuration upset and secure, one-time programmable interconnect. The -2 speed grade supports core toggle rates of 129 MHz with 215 MHz I/O flip-flop rates, adequate for glue logic replacement, bus bridging, and state-machine integration in industrial systems.
Typical applications include legacy ASIC/PLD consolidation, industrial control and automation, 5V backplane interfaces, military/aerospace heritage systems, and high-reliability single-chip logic where configuration volatility is unacceptable.
Design consideration: verify 3.3V/5V I/O banking and power-rail sequencing against datasheet DS2316, and pin-level correctness against the VQFP-100 pinout table before layout, as antifuse devices are one-time programmable.
Drop-in alternatives for A42MX16-2VQG100I — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with A42MX16-2VQG100I (same form factor and footprint) — differing in Package, System Gates, Speed Grade, Family, Logic Cells.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
A42MX16-1VQG100
✅ Drop-In✓ In Stock
$20.7 / Unit
View Datasheet →A42MX16-2VQ100I
✅ Drop-In📋 Reference alternative (not in catalog)
A42MX16-2VQG100I Maximum Ratings & Electrical Characteristics
| Family | Actel MX (42MX) |
| System Gates | 24000 |
| Logic Cells | 608 |
| User I/O | 83 |
| Supply Voltage | 3.3 V / 5 V |
| Speed Grade | -2 (129 MHz / 215 MHz) |
| Process Technology | 0.45 um |
| Programming Technology | Antifuse (one-time programmable) |
| Package | 100-Pin VQFP / TQFP (gull wing, square) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (Industrial, I suffix) |
| Terminal Form | Gull Wing |
| Packaging | Tray |
| Boundary Scan | JTAG (TDI to TDO chain) |
| Configuration | Non-volatile, live at power-up |
A42MX16-2VQG100I Pin Configuration
| Pin 1-9 | I/O — User I/O banks, 3.3V/5V tolerant (see DS2316 pin table for exact bank assignment) |
| Pin 10 | VDD — Core supply (per datasheet VQFP-100 pin table) |
| Pin 11 | GND — Ground |
| Pin [DATA_NEEDED] | TDI — JTAG boundary-scan test data in (start of scan chain) |
| Pin [DATA_NEEDED] | TDO — JTAG boundary-scan test data out (end of scan chain) |
| Pin [DATA_NEEDED] | TCK — JTAG test clock |
| Pin [DATA_NEEDED] | TMS — JTAG test mode select |
| Pin 84-100 | I/O / VPP — User I/O plus antifuse programming voltage pin (see DS2316) |
Typical Applications
A42MX16-2VQG100I is suitable for 6 applications: Legacy PLD / ASIC Consolidation, Industrial Automation and Control, 5V Backplane and Bus Bridging, Defense and Aerospace Heritage Systems, Medical Device Control Logic, Test and Measurement Equipment.
Legacy PLD / ASIC Consolidation
The A42MX16-2VQG100I consolidates multiple legacy PLDs, GALs, and small ASICs into a single 24K-gate antifuse device. Microchip explicitly positions the MX family as an efficient, flexible 5.0V platform for integrating legacy PLDs at low cost in high volumes. With 608 logic cells and 83 user I/Os, multiple 22V10-class devices fold into one TQFP-100 package, cutting board area and BOM count. Because configuration is non-volatile antifuse, the consolidated design powers up instantly with no boot device, matching the behavior of the discrete PLDs it replaces in long-lifecycle industrial products.
Recommended
Industrial Automation and Control
In factory automation controllers, the A42MX16-2VQG100I implements state machines, encoder interfaces, and interlock logic with industrial-grade reliability. The industrial -40C to +85C temperature rating and 5V-tolerant 3.3V/5V I/O directly interface with legacy PLC backplanes and 24V-logic-conditioned sensor inputs through appropriate buffering. The 129 MHz -2 speed grade far exceeds typical PLC scan-logic requirements, while antifuse fabric resists configuration upset in electrically noisy motor-drive environments. Live-at-power-up operation ensures outputs reach defined states immediately, which is a safety advantage over SRAM FPGAs that need configuration time.
Recommended
5V Backplane and Bus Bridging
The MX family's 5.0V architecture makes the A42MX16-2VQG100I well suited to 5V backplane bridging - interfacing VME, ISA-heritage, and industrial card-cage buses to modern 3.3V logic. Its I/O banks accept 5V signals directly, eliminating level-shifter clusters that SRAM FPGAs require. With 83 user I/Os in the VQFP-100, the device implements bus arbitration, address decoding, and wait-state generation at up to 215 MHz internal flip-flop rates, comfortably covering legacy bus timings. Because the antifuse design is one-time programmable, bus-interface behavior is fixed and auditable, which simplifies certification of heritage systems.
Recommended
Defense and Aerospace Heritage Systems
Microsemi (now Microchip) MX FPGAs have a long heritage in defense and aerospace programs, and the A42MX16-2VQG100I sustains such designs. Antifuse one-time programming provides inherent resistance to configuration corruption from radiation-induced upset and tamper-readback security absent in SRAM FPGAs. The non-volatile fabric powers up instantly for mission-critical timing, and the M-suffix military variants of the same die support extended programs. In the VQFP-100 industrial variant, it suits ground-based defense electronics, test sets, and avionics ground support equipment requiring 24K gates with proven 0.45 um reliability data.
Recommended
Medical Device Control Logic
The A42MX16-2VQG100I serves as deterministic control fabric in medical instrumentation such as analyzers, pumps, and diagnostic equipment, where fixed one-time-programmed logic aids design traceability and regulatory documentation. The antifuse configuration cannot be altered in the field, eliminating firmware-corruption failure modes in devices requiring verified behavior. With 83 user I/Os, it aggregates motor-control PWM, sensor polling, and front-panel interfaces, while 5V I/O compatibility eases integration with legacy analog front ends. The 129 MHz -2 timing ceiling comfortably covers real-time control loops running at sub-megahertz rates in laboratory instruments.
Recommended
Test and Measurement Equipment
Bench instruments and rack systems use the A42MX16-2VQG100I as timing, sequencing, and interface glue between processors, converters, and front ends. The -2 speed grade's 215 MHz flip-flop rate supports precise strobe and trigger generation, while JTAG boundary-scan (TDI-to-TDO chain) enables in-cabinet interconnect test per the Microsemi DS2316 datasheet. Instant-on antifuse configuration means the instrument's logic is armed before the software loads, simplifying deterministic boot sequencing. 5V-tolerant I/O also directly drives legacy relay banks and indicator interfaces common in serviceable long-lifecycle test gear.
Recommended
Recommended Products Summary
Engineering reference data for A42MX16-2VQG100I — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A42MX16-1VQG100 | A42MX16-2VQ100I | A42MX16-1PQG100 | A42MX09-2PQG100I |
|---|---|---|---|---|---|
| Package | 100-Pin VQFP/TQFP | 100-Pin VQFP/TQFP - same | 100-Pin VQFP/TQFP - same | 100-Pin PQFP - different body | 100-Lead PQG - different pinout |
| Brand | Microchip Technology (Microsemi/Actel) | Microchip Technology | Microchip Technology (Actel marking) | Microchip Technology | Microchip Technology |
| System Gates | 24000 | 24000 | 24000 | 24000 | 9000 |
| Logic Cells | 608 | 608 | 608 | 608 | 228 |
| Speed Grade | -2 (129/215 MHz) | -1 (slower) | -2 (129/215 MHz) | -1 (slower) | -2 |
| 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 |
| Programming Technology | Antifuse OTP | Antifuse OTP | Antifuse OTP | Antifuse OTP | Antifuse OTP |
Key Differentiators
- Fastest MX16 speed grade in VQFP-100 (vs A42MX16-1VQG100)
- Identical die in Actel legacy marking (vs A42MX16-2VQ100I)
- Non-volatile antifuse vs SRAM FPGAs (vs Lattice MachXO2 (TQFP-100, cross-package/design rework))
Design Notes
The MX family operates from 3.3V or 5V supplies; confirm which rail feeds VDD and VPP per the DS2316 datasheet VQFP-100 pin table before layout. Decouple each supply pin with 0.1uF ceramic plus 10uF bulk capacitance. The antifuse programming voltage (VPP) pin must be handled per Microsemi programming specifications and left at the specified potential during normal operation. Verify power-up ramp rate requirements since antifuse devices power up live immediately.
Antifuse FPGAs are one-time programmable - pinout or I/O bank errors cannot be fixed by re-flashing as with SRAM FPGAs. Validate static timing at the -2 speed grade (129 MHz core / 215 MHz I/O) in Libero SoC before committing, and dry-run the entire place-and-route plus programming flow on a development device. If substituting the -1 grade part (A42MX16-1VQG100), re-run timing analysis at -1 before accepting the swap.
The TQFP-100 gull-wing package (14x14 mm) requires standard surface-mount reflow with a nominal 0.5 mm pitch land pattern per the Microchip package drawing. Use no-clean or water-wash flux compatible with fine-pitch quads, and inspect solder joints under magnification for bridging on the 0.5 mm pitch perimeter. JTAG (TDI, TDO, TCK, TMS) should be routed with series termination and brought to a test header for boundary-scan chain validation.
Compliance Information
Compliance data not present in retrieved distributor data; verify on Microchip product page. MX family offers standard and lead-free ordering options; confirm for the -2VQG100I suffix specifically.
