A42MX16-1VQG100 - 24K Gate Antifuse FPGA | Microchip
MPN： A42MX16-1VQG100 ✓ 啟用中A42MX16-1VQG100 概覽
An antifuse FPGA is a field-programmable gate array whose interconnect is permanently programmed at power-up initialization by blowing microscopic antifuse links. Unlike SRAM-based FPGAs, antifuse devices are non-volatile, one-time programmable, and require no external configuration memory. Within the programmable logic hierarchy (FPGA -> antifuse FPGA -> MX family -> A42MX16), this positions the device as a low-cost, secure platform for consolidating legacy PLDs and glue logic.
Key features include a flexible 5.0V architecture tolerant of legacy 5V bus environments, low static power typical of antifuse technology, inherent design security because the programmed netlist cannot be read back, and instant-on operation with no configuration boot time. These attributes matter in industrial control, avionics, and defense programs where configuration immunity and supply-chain longevity outweigh reprogrammability.
The MX architecture combines combinatorial and sequential logic modules with dedicated routing, supporting logic consolidation of multiple PLDs, PALs, and GALs into one device. Design entry and programming use Microchip Libero SoC design suite with Synopsys synthesis; programming is performed once via standard programmers, after which the device behaves as a fixed-logic ASIC.
Typical applications include legacy PLD integration, industrial motor control interfaces, bridge logic between 5V microprocessors and peripherals, and mil-aero systems using previously qualified designs. Long-term availability is a hallmark of the MX family.
Design consideration: the device is one-time programmable, so fully verify the design in simulation and, where possible, prototype on reprogrammable equivalents before committing production programming.
直接替換替代品，適用於 A42MX16-1VQG100 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： A42MX16-1VQG100 （相同外形與佔位） — 差異在於 Package, Speed Grade, Family, System Gates, RoHS Status.
A42MX16-VQG100I
✅ 直接替換聯絡詢價
查看資料表 →A42MX16-1PQG100
✅ 直接替換聯絡詢價
查看資料表 →A42MX16-1PQG100M
✅ 直接替換聯絡詢價
查看資料表 →A42MX16-1VQG100A
✅ 直接替換📋 參考替代品（不在目錄中）
A42MX16-1VQG100 最大額定值與電氣特性
| System Gates | 24,000 gates |
| User I/O | 83 |
| Family | MX (42MX) |
| Technology | Antifuse (one-time programmable) |
| Core Supply Voltage | 5.0 V |
| Speed Grade | -1 |
| 封裝 | 100-TQFP (VQG100) |
| 安裝類型 | Surface Mount |
| Programming Type | In-system antifuse programming (OTP) |
| Configuration Memory | None required (non-volatile) |
| Design Tool | Microchip Libero SoC |
| RoHS 狀態 | Lead free (per distributor listing) |
| Boundary Scan | JTAG (TDI/TDO chain) |
A42MX16-1VQG100 腳位配置
| 腳位 1 | IO — User I/O (assignable via Libero) |
| 腳位 TDI | TDI — JTAG boundary-scan data in |
| 腳位 TDO | TDO — JTAG boundary-scan data out |
| 腳位 TMS | TMS — JTAG test mode select |
| 腳位 TCK | TCK — JTAG test clock |
| 腳位 VCC | VCC — 5.0 V core/I/O supply |
| 腳位 GND | GND — Ground |
| 腳位 PROGRAM | PROGRAM — Programming control (antifuse programming mode) |
| 腳位 CLK | CLK — Global clock input (dedicated) |
典型應用
A42MX16-1VQG100 適用於 6 應用s: Legacy PLD Integration, Industrial Motor Control Interface Logic, Defense and Avionics Legacy Systems, 5V Microprocessor Glue Logic and Bus Bridging, Secure Industrial Control and Anti-Tamper Logic, Test and Measurement Fixture Logic.
Legacy PLD Integration
The A42MX16-1VQG100 consolidates multiple 22V10 PALs, GALs, and smaller PLDs from legacy boards into one 24K-gate antifuse device on a single 5.0V rail. Because the MX16 accepts 5.0V-tolerant I/O environments, it interfaces directly with legacy TTL-level buses without level shifters, eliminating two or three voltage domains. After one-time antifuse programming the design is permanently fixed, matching the deterministic behavior of the replaced fixed-logic devices. A typical consolidation replaces 3-5 PLDs, cutting board area, BOM count, and qualification effort in long-lifecycle industrial programs.
推薦
Industrial Motor Control Interface Logic
In industrial drives, the A42MX16-1VQG100 bridges microcontroller PWM outputs to gate-driver and protection circuits, implementing dead-time logic, fault latching, and encoder decoding with sub-100 ns -1 speed-grade delays. The instant-on antifuse behavior means control logic is active within microseconds of power application - before soft-start completes - which is essential for safe power-up interlocking in 5.0V industrial environments. Its 83 user I/Os accommodate encoder quadrature inputs plus six PWM channels and fault feedback simultaneously, all in one 100-TQFP package with proven long-term availability.
推薦
Defense and Avionics Legacy Systems
The antifuse MX16 suits defense and avionics platforms because its programmed configuration cannot be read back and contains no configuration memory to corrupt under radiation or power disturbance. The A42MX16-1PQG100M military-flow variant shares the same die for programs requiring higher screening levels. Designs qualified years ago on MX silicon can be re-sourced without redesign, since Microchip maintains the family for legacy programs. The 5.0V architecture matches MIL-STD-era bus levels, and one-time programming guarantees the flight-critical netlist is identical in every shipped unit.
推薦
5V Microprocessor Glue Logic and Bus Bridging
Legacy 5.0V microprocessor systems require address decoding, wait-state generation, and interrupt arbitration at true 5V logic levels. The A42MX16-1VQG100 natively operates from a 5.0V supply, so its 83 I/Os drive and receive TTL/CMOS 5V buses directly without level translators, unlike modern 3.3V or lower FPGAs. The -1 speed grade easily meets classic bus timing of tens of nanoseconds. One 100-TQFP device typically replaces several 74-series decode and latch functions, reducing board complexity while preserving the exact fixed timing of the original discrete implementation after programming.
推薦
Secure Industrial Control and Anti-Tamper Logic
Antifuse programming gives the A42MX16-1VQG100 inherent design security: there is no bitstream to intercept and no readback path, so proprietary control algorithms stored in the interconnect cannot be cloned by decapping competitors' devices. This matters for industrial equipment vendors protecting specialized machine-control IP on long-production boards. Combined with instant-on non-volatile behavior, the device also prevents boot-time attacks that target SRAM FPGA configuration loading. Designs are compiled in Libero SoC and programmed once, after which security no longer depends on supply-chain handling of configuration files.
推薦
Test and Measurement Fixture Logic
Production test fixtures benefit from the A42MX16-1VQG100's instant-on, fixed-function behavior: the fixture logic is guaranteed identical on every power cycle and every unit, with no configuration download step adding test-cycle time. The 5.0V supply matches the TTL signaling common on legacy test equipment backplanes, and 83 I/Os cover channel expansion matrices and pass/fail combinational logic. Because each programmed device is permanently configured, fixture designs ship with verified units and cannot drift from the approved netlist - a frequent audit requirement in regulated manufacturing environments.
推薦
推薦產品摘要
工程參考資料，適用於 A42MX16-1VQG100 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | A42MX16-VQG100I | A42MX16-1PQG100 | A42MX16-1PQG100M | A42MX16-1PLG84 |
|---|---|---|---|---|---|
| Package | 100-TQFP (VQG100) | 100-TQFP - same | 100-TQFP - same | 100-TQFP - same | 84-PLCC - different footprint |
| Brand | Microchip Technology (Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 24,000 | 24,000 | 24,000 | 24,000 | 24,000 |
| User I/O | 83 | 83 | 83 | 83 | 68 (limited by 84-PLCC) |
| Supply Voltage | 5.0 V | 5.0 V | 5.0 V | 5.0 V | 5.0 V |
| Temperature Range | Commercial | Industrial (-40C to +85C) | Commercial | Military flow | Commercial |
| Programming Technology | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) |
主要差異化特點
- Non-volatile instant-on operation with zero boot time (對比SRAM-based FPGAs (e.g., Xilinx XC4000))
- Readback-proof design security (對比SRAM FPGA families)
- Native 5.0V architecture (對比A42MX16-1PLG84 (same die, 84-PLCC))
設計說明
The A42MX16 is one-time programmable - antifuse links cannot be reset. Complete full RTL simulation, timing closure, and ideally a hardware prototyping pass before releasing a programming file. Keep the Libero SoC project and programming file under revision control with checksums, because the programmed part cannot be re-read to recover the netlist.
The MX16 operates from a single 5.0V rail. During antifuse programming, dedicated programming current paths activate - consult the DS2136 datasheet programming specification for programmer supply requirements. In application, provide local 0.1uF decoupling per VCC pin pair plus 10uF bulk, and account for antifuse FPGA static-dominant current, which is lower and steadier than SRAM FPGA dynamic current but spikes during clocked operation.
The 100-TQFP (0.5 mm lead pitch) requires careful solder-paste stencil design to avoid bridging. Tie unused user I/Os per the datasheet recommendation (typically grounded via the Libero unused-pin setting) rather than leaving them floating, which can cause static current increase and noise susceptibility. Connect all VCC and GND pins; do not leave any supply pin unconnected even if the design uses few I/Os.
合規資訊
Distributor listing (PCB Electronics) marks A42MX16-1VQG100 as LEAD FREE. Full RoHS/REACH certificates should be requested from Microchip.
