A42MX16-TQG176M - 24K Gate MX FPGA, 176-TQFP | Microchip
MPN: A42MX16-TQG176M β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $89.5 | $89.50 |
| 10 | $82.3 | $823.00 |
| 100 | $74.1 | $7,410.00 |
| 500 | $66.8 | $33,400.00 |
| 1,000 | $61.2 | $61,200.00 |
Drop-in alternatives for A42MX16-TQG176M β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
A42MX16-TQG176
β Drop-Inπ Reference alternative (not in catalog)
A42MX24-TQG176
β Drop-Inπ Reference alternative (not in catalog)
A42MX16-TQG176M Maximum Ratings & Electrical Characteristics
| Family | 42MX (MX FPGA) |
| System Gates | 24,000 |
| Logic Cells | 608 |
| User I/O | 140 |
| Flip-Flops | [DATA_NEEDED: Flip-Flop count] |
| Supply Voltage | 3.3 V / 5.0 V |
| Max System Frequency | 103 MHz (172 MHz toggle) |
| Process Technology | 0.45 um antifuse |
| Programming Technology | Antifuse (one-time programmable, non-volatile) |
| Package | 176-pin TQFP |
| Mounting Type | Surface Mount |
| Operating Temperature | [DATA_NEEDED: Operating temperature range (M grade)] |
| JTAG Boundary Scan | Yes (IEEE 1149.1) |
| Configuration Memory | Non-volatile (no external PROM required) |
| RoHS Status | [DATA_NEEDED: RoHS status] |
| Packaging | Tray |
A42MX16-TQG176M Pin Configuration
| Pin [DATA_NEEDED: pin 1] | IO β User I/O - full 176-pin TQFP pinout table available in Microsemi 42MX family datasheet DS2136 |
| Pin [DATA_NEEDED: VDD pin] | VDD β Core supply (3.3V or 5.0V per configuration) |
| Pin [DATA_NEEDED: GND pin] | GND β Ground |
| Pin [DATA_NEEDED: TCK pin] | TCK β JTAG test clock (IEEE 1149.1) |
| Pin [DATA_NEEDED: TDI pin] | TDI β JTAG test data in |
| Pin [DATA_NEEDED: TDO pin] | TDO β JTAG test data out |
| Pin [DATA_NEEDED: TMS pin] | TMS β JTAG test mode select |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
A42MX16-TQG176M is suitable for 6 applications: Legacy PLD Consolidation, Industrial Control Systems, Aviation and Defense Electronics, Secure Embedded Controllers, Board-Level Glue Logic and Bus Bridging, Test and Measurement Instrumentation.
Legacy PLD Consolidation
The A42MX16-TQG176M is purpose-built for consolidating multiple legacy PAL, GAL, and PLD devices into a single-chip ASIC alternative. With 24,000 system gates, 608 logic cells, and a 5.0V-tolerant architecture, it absorbs obsolete glue logic while maintaining 5V board compatibility that many SRAM FPGAs lack. Because antifuse configuration is non-volatile, the consolidated design powers up instantly with no configuration PROM, eliminating boot failures and reducing BOM count. Designers typically migrate verified schematic netlists using Libero/Macrovector design tools, then program once for a permanent, secure implementation.
Recommended
Industrial Control Systems
Industrial controllers benefit from the A42MX16-TQG176M's predictable pin-to-pin delays and instant-on operation. The non-volatile antifuse fabric means machinery controllers resume operation immediately after power loss with no configuration reload delay - critical for deterministic startup in factory automation. The 140 user I/Os handle dense sensor and actuator interfacing, and dual 3.3V/5V supply options bridge modern and legacy voltage domains. Its 103 MHz system performance comfortably covers state machines, encoders, PWM generation, and communication bridges implemented in 42MX logic modules.
Recommended
Aviation and Defense Electronics
The M temperature grade of the A42MX16-TQG176M targets high-reliability aviation and defense platforms. Antifuse interconnect is inherently resistant to configuration upsets and cannot be read back, protecting proprietary logic from extraction - a key security advantage in military programs. The fixed wiring delivers deterministic timing suitable for certification-driven designs, and the absence of configuration circuitry reduces parts count and failure modes. Typical uses include flight-control interface logic, sensor bus bridges, and radiation-conscious ground equipment where SRAM configuration memory would be a liability.
Recommended
Secure Embedded Controllers
Antifuse FPGAs are favored where configuration security matters: there is no bitstream to read back, clone, or corrupt. The A42MX16-TQG176M implements authentication logic, encryption wrappers, and secure boot glue around host processors with 24K gates of fixed, tamper-resistant wiring. Instant-on behavior means security logic is active before the first microprocessor instruction executes - impossible with SRAM FPGAs that load configuration from external flash. Designers pair it with host MCUs and secure elements to build supply-chain-hardened control boards for payment, industrial, and infrastructure systems.
Recommended
Board-Level Glue Logic and Bus Bridging
The A42MX16-TQG176M replaces dozens of 74-series and CPLD devices on processor boards with one programmable device. Its 140 I/Os and 3.3V/5V operation let engineers implement address decoding, bus multiplexing, interrupt aggregation, and wait-state generation between legacy 5V buses and modern 3.3V peripherals. The IEEE 1149.1 JTAG boundary scan supported by the 42MX family simplifies production board test of these dense interconnect regions. Fixed antifuse routing gives deterministic propagation delays, easing timing closure across wide asynchronous bus interfaces.
Recommended
Test and Measurement Instrumentation
Instrument makers use the A42MX16-TQG176M for deterministic trigger logic, timing generators, and front-end sequencers. The antifuse fabric's stable, process-fixed delays support repeatable timing measurements, while instant-on configuration ensures the instrument is operational the moment power is applied. With 103 MHz system performance and 140 I/Os, it can implement counter/timer arrays, channel multiplexing, and host interface logic in a single 176-TQFP device. Tray packaging supports low-volume, high-mix production typical of the instrumentation industry.
Recommended
Recommended Products Summary
Engineering reference data for A42MX16-TQG176M β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A42MX16-TQG176 | A42MX24-TQG176 | A42MX16-PQ100 |
|---|---|---|---|---|
| Package | 176-TQFP | 176-TQFP - same | 176-TQFP - same | 100-PQFP - different |
| Brand | Microchip Technology (Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 24,000 | 24,000 | 36,000 | 24,000 |
| Logic Cells | 608 | 608 | [DATA_NEEDED] | 608 |
| User I/O | 140 | 140 | 140 | [DATA_NEEDED: ~69] |
| Supply Voltage | 3.3 V / 5.0 V | 3.3 V / 5.0 V | 3.3 V / 5.0 V | 3.3 V / 5.0 V |
| Temperature Grade | M (extended/military) | Standard | Standard | Standard |
| Programming | Antifuse OTP | Antifuse OTP | Antifuse OTP | Antifuse OTP |
| Max System Frequency | 103 MHz | 103 MHz | [DATA_NEEDED] | 103 MHz |
Key Differentiators
- M temperature grade for harsh environments (vs A42MX16-TQG176)
- Lower cost for 24K-gate designs (vs A42MX24-TQG176)
- Full 140-I/O availability (vs A42MX16-PQ100)
Design Notes
The MX family is one-time programmable (antifuse). Freeze and fully verify the design in simulation before programming, because a logic change after programming consumes a new device. Maintain a programming-file version control policy and order spare devices (typically 10-15% attrition) for production rework. Do not attempt in-field reconfiguration - plan firmware-style changes into an adjacent MCU instead.
The A42MX16 supports dual 3.3V/5.0V operation. Verify which supply mode your pinout configuration targets in DS2136 and never mix I/O banks above their rated voltage. Decouple each VDD pin with 0.1uF ceramic capacitors placed within 2mm of the pin, plus bulk 10uF per rail. Antifuse FPGAs have no configuration inrush current, simplifying power-up sequencing versus SRAM FPGAs.
The 176-TQFP has 0.5mm pin pitch: use a 4-mil minimum trace/space layout with solder-mask-defined pads per the DS2136 mechanical drawing, and add thermal relief vias to ground plane for hand-rework feasibility. Use the dedicated JTAG pins (TCK, TDI, TDO, TMS) on a header for programming access - route TCK short and away from switching I/O to avoid boundary-scan integrity issues.
With 140 I/Os in a 176-TQFP, simultaneous switching output (SSO) noise limits apply. Distribute high-drive outputs across the four package sides and interleave GND pins where the pinout allows. For 5V legacy bus interfaces, add series 22-33 ohm resistors on outputs driving long traces to control ringing, and verify against the 42MX family I/O electrical tables in DS2136.
Compliance Information
Compliance data not present in provided web results. Microchip product page should be consulted for RoHS/REACH status of specific date codes.
