A42MX16-2TQG176 - 24K Gate FPGA 176-TQFP | Microchip Technology
MPN: A42MX16-2TQG176 ✓ فعالA42MX16-2TQG176 نمای کلی
An FPGA (Field-Programmable Gate Array) is a class of programmable logic integrated circuit whose interconnect and logic blocks are configured after manufacturing, sitting in the system hierarchy between fixed-function ASICs and programmable MCUs. The MX family is an antifuse-based, one-time-programmable FPGA line, positioning it as a reliable, single-chip ASIC alternative for legacy PLD integration.
Key features include 608 configurable logic cells (CLBs), 5.0V-tolerant legacy I/O architecture, JTAG boundary-scan support via a boundary-scan register chain from TDI to TDO, and the high-reliability antifuse configuration that is inherently immune to configuration readback attacks. The -2 speed grade balances performance and cost within the family's speed offerings (-1, -2, -3).
The MX architecture integrates legacy PAL/GAL/PLD designs into a single low-cost device, making it a high-volume platform for long-lifecycle systems. Actel/Microsemi antifuse FPGAs retain configuration through power cycles with no external boot flash, improving board simplicity and security.
Typical applications include industrial control, avionics and defense legacy redesigns, glue logic consolidation, and high-reliability embedded systems where 5V-tolerant I/O interfacing with legacy TTL/5V CMOS buses is required.
Design consideration: antifuse FPGAs are one-time programmable - verify the design thoroughly in simulation (Libero SoC toolchain) before programming, as no field rework is possible.
جایگزین‌های drop-in برای A42MX16-2TQG176 — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای A42MX16-2TQG176 (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Package, Family, Speed Grade, Supply Voltage, System Gates.
A42MX16-1TQG176I
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←A42MX16-3TQG176
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←A42MX16-TQG176M
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←A42MX24-TQG176M
⚡ پکیج یکسانبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←A42MX24-TQG176A
⚡ پکیج یکسانبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←A42MX16-2TQG176 حداکثر مقادیر مجاز و مشخصات الکتریکی
| System Gates | 24000 gates |
| Logic Cells (CLBs) | 608 |
| User I/O | 140 |
| بسته‌بندی | 176-TQFP (LQFP) |
| Speed Grade | -2 |
| ولتاژ تغذیه | 3.3 V / 5 V |
| Process Technology | 0.45 um CMOS |
| Maximum Toggle Frequency | 129 MHz / 215 MHz |
| Programming Technology | Antifuse (one-time programmable) |
| Family | MX (42MX) |
| Configuration Retention | Non-volatile (antifuse, no boot flash) |
| JTAG Boundary Scan | Yes (TDI to TDO chain) |
| نوع نصب | Surface Mount |
| Package Qualification Code | S-PQFP-G176 (JESD-30) |
| وضعیت RoHS | Lead Free |
| Design Toolchain | Microchip Libero SoC |
پیکربندی پین A42MX16-2TQG176
| پین 1 | IO — User I/O (bank A) - exact assignment per DS2316 Table |
| پین 10 | VDD — Core supply (3.3V or 5V per configuration) |
| پین 20 | GND — Ground |
| پین 30 | IO — User I/O |
| پین TCK | TCK — JTAG test clock (boundary scan input) |
| پین TDI | TDI — Boundary-scan register chain input |
| پین TDO | TDO — Boundary-scan register chain output (chain ends at TDO) |
| پین TMS | TMS — JTAG test mode select |
| پین CLK | CLK — Dedicated clock input (dual-module clock resources) |
| پین 176 | IO — User I/O (bank C) |
کاربردهای معمول
A42MX16-2TQG176 مناسب است برای 6 کاربردs: Legacy PLD Consolidation, Industrial Control Systems, Avionics and Defense Legacy Redesign, ASIC Prototyping and Bridge Logic, Telecom and Networking Line Cards, Secure Embedded Systems.
Legacy PLD Consolidation
The MX family was explicitly designed by Microchip (Actel/Microsemi) to integrate legacy PAL, GAL, and PLD devices into a single low-cost 24K-gate chip. The A42MX16-2TQG176 provides 608 logic cells and 5V-tolerant I/O, directly compatible with legacy TTL and 5V CMOS signal levels that modern FPGAs cannot accept. Consolidation reduces board area, BOM count, and failure points while preserving the original logic functionality, making it the standard choice for sustaining mature industrial and telecom boards.
پیشنهادی
Industrial Control Systems
Industrial controllers frequently retain 5V sensor and actuator interfaces. The A42MX16-2TQG176 operates on 3.3V/5V supplies with 140 user I/Os at up to 129 MHz internal toggle, providing deterministic glue logic, PWM generation, and interlock sequencing. Its antifuse configuration is non-volatile and immune to power glitches, eliminating configuration-flash corruption issues common in SRAM FPGAs on noisy factory floors. Drop-in family alternates (-1/-3 grades) allow timing optimization without PCB redesign.
پیشنهادی
Avionics and Defense Legacy Redesign
The MX family is qualified across extended temperature grades including M (military), making A42MX16 TQFP-176 variants a common choice for avionics obsolescence redesigns. The antifuse technology offers no configuration readback path, supporting anti-tamper requirements, and retains configuration through power cycling without boot PROMs. With 24K gates and 5V-tolerant I/O it reproduces legacy MIL-STD bus glue logic and sequencer functions while family members A42MX24-TQG176M provide an upgrade path within the same footprint.
پیشنهادی
ASIC Prototyping and Bridge Logic
Microchip positions MX as a reliable single-chip ASIC alternative for medium-volume designs. The A42MX16-2TQG176 with 608 cells serves as bridge logic between processors and peripherals, address decoding, and bus translation in embedded systems. One-time programmability means the production configuration is fixed at power-on with zero configuration latency - valuable for systems with strict boot-time requirements. Design flow uses Microchip Libero SoC for synthesis through fuse-file generation.
پیشنهادی
Telecom and Networking Line Cards
Telecom line cards historically used 5V backplane signaling. The A42MX16-2TQG176 accepts 5V-tolerant inputs on its 140 user I/Os while running internal logic at 3.3V, directly interfacing legacy backplanes such as H.110 and PMC carriers. The 176-TQFP package provides practical lead pitch for hand-inspection in repair depots, and the non-volatile antifuse configuration survives hot-swap power transients without reconfiguration. Family members in VQG100 and PQG160 packages enable density-matched board variants.
پیشنهادی
Secure Embedded Systems
Unlike SRAM FPGAs, antifuse devices cannot have their configuration dumped, cloned, or glitched through configuration interfaces because none exist after programming. The A42MX16-2TQG176 therefore suits secure boot bridges, key-storage handshake logic, and anti-tamper sequencing in security-sensitive equipment. Non-volatile configuration removes the boot-flash attack surface entirely. Designers should combine it with authenticated MCU firmware for end-to-end protection; the 24K-gate capacity accommodates state machines, comparators, and secure interlocks.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای A42MX16-2TQG176 — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | A42MX16-1TQG176I | A42MX16-3TQG176 | A42MX16-TQG176M | A42MX24-TQG176M |
|---|---|---|---|---|---|
| Package | 176-TQFP | 176-TQFP - same | 176-TQFP - same | 176-TQFP - same | 176-TQFP - same |
| Brand | Microchip Technology (Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 24000 | 24000 | 24000 | 24000 | 36000 |
| 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 |
| Temperature Grade | Standard | Industrial (I) | Standard | Military (M) | Military (M) |
| Programming Technology | Antifuse OTP | Antifuse OTP | Antifuse OTP | Antifuse OTP | Antifuse OTP |
تفاوت‌های کلیدی
- 5V-tolerant I/O architecture (در مقابلXilinx XC4000XL)
- Non-volatile secure configuration (در مقابلA42MX16-1TQG176I (and all SRAM FPGAs))
- Higher density upgrade in same footprint (در مقابلA42MX24-TQG176M)
یادداشت‌های طراحی
The MX family uses dual 3.3V/5V supply architecture. Decouple each VDD pin pair with 0.1 uF ceramic capacitors placed within 5 mm of the pin, plus bulk 10 uF per supply rail. Because antifuse FPGAs draw no configuration current at power-up, inrush is dominated by decoupling capacitors - useful for hot-swap backplane designs where SRAM FPGAs require configuration supervisors.
The device is one-time programmable. Never commit a design to silicon without closing timing in Libero SoC and verifying all I/O assignments against the 176-TQFP pinout table in datasheet DS2316. There is no field rework path - a pinout error requires a new device and potentially a new PCB. Maintain the fuse file under configuration control for production programming.
When interfacing 5V legacy buses, verify that external pull-ups do not push I/O clamp currents beyond datasheet limits. For the boundary-scan chain, remember it starts at TDI and ends at TDO per DS2316 - chain multiple MX devices with TDO-to-TDI daisy chaining and keep TCK routing short with series termination (22-33 ohm) to limit ringing on the test clock.
اطلاعات انطباق
Distributor listings (PCB Electronics) indicate LEAD FREE status for A42MX16-2TQG176. Full REACH/halogen data not present in provided sources.
