A42MX16-2TQG176 - 24K Gate FPGA 176-TQFP | Microchip Technology
MPN: A42MX16-2TQG176 ✓ פעילA42MX16-2TQG176 סקירה
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.
חלופות תחליף ישיר עבור A42MX16-2TQG176 — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם A42MX16-2TQG176 (אותו גורם צורה וטביעת רגל) — שונים ב Package, Family, Speed Grade, Supply Voltage, System Gates.
A42MX16-1TQG176I
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←A42MX16-3TQG176
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←A42MX16-TQG176M
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←A42MX24-TQG176M
⚡ אותה מארזהצור קשר לקבלת מחיר
הצג גיליון נתונים ←A42MX24-TQG176A
⚡ אותה מארזהצור קשר לקבלת מחיר
הצג גיליון נתונים ←A42MX16-2TQG176 דירוגים מרביים ומאפיינים חשמליים
| System Gates | 24000 gates |
| Logic Cells (CLBs) | 608 |
| User I/O | 140 |
| מארז | 176-TQFP (LQFP) |
| Speed Grade | -2 |
| מתח אספקה | 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) |
| סוג הרכבה | Surface Mount |
| Package Qualification Code | S-PQFP-G176 (JESD-30) |
| סטטוס RoHS | Lead Free |
| Design Toolchain | Microchip Libero SoC |
תצורת פינים של A42MX16-2TQG176
| פין 1 | IO — User I/O (bank A) - exact assignment per DS2316 Table |
| פין 10 | VDD — Core supply (3.3V or 5V per configuration) |
| פין 20 | GND — Ground |
| פין 30 | IO — User I/O |
| פין TCK | TCK — JTAG test clock (boundary scan input) |
| פין TDI | TDI — Boundary-scan register chain input |
| פין TDO | TDO — Boundary-scan register chain output (chain ends at TDO) |
| פין TMS | TMS — JTAG test mode select |
| פין CLK | CLK — Dedicated clock input (dual-module clock resources) |
| פין 176 | IO — User I/O (bank C) |
יישומים טיפוסיים
A42MX16-2TQG176 מתאים עבור 6 יישוםs: 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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור A42MX16-2TQG176 — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | 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 |
מבדילים עיקריים
- 5V-tolerant I/O architecture (לעומתXilinx XC4000XL)
- Non-volatile secure configuration (לעומתA42MX16-1TQG176I (and all SRAM FPGAs))
- Higher density upgrade in same footprint (לעומתA42MX24-TQG176M)
הערות תכנון
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.
מידע על תאימות
Distributor listings (PCB Electronics) indicate LEAD FREE status for A42MX16-2TQG176. Full REACH/halogen data not present in provided sources.
