A42MX09-TQG176M - MX FPGA 14K Gates 104 I/O TQFP-176 | Microchip
MPN: A42MX09-TQG176M ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $85 | $85.00 |
| 10 | $78.2 | $782.00 |
| 100 | $70.5 | $7,050.00 |
| 500 | $64 | $32,000.00 |
| 1,000 | $58.75 | $58,750.00 |
Drop-in alternatives for A42MX09-TQG176M — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
A42MX09-TQG176A
✅ Drop-In✓ In Stock
$32.1 / Unit
View Datasheet →A42MX16-TQG176M
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$61.2 / Unit
View Datasheet →A42MX16-2TQG176
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$28.4 / Unit
View Datasheet →A42MX24-1TQG176M
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Contact for price
View Datasheet →A42MX24-TQG176A
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$43.2 / Unit
View Datasheet →A42MX24-1TQG176I
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$23.9 / Unit
View Datasheet →A42MX09-TQG176M Maximum Ratings & Electrical Characteristics
| Family | MX (Actel antifuse FPGA) |
| System Gates | 14000 |
| Logic Cells | 336 |
| User I/O | 104 |
| Supply Voltage | 3.3 V / 5 V |
| Process Technology | 0.45 um |
| Maximum Clock Frequency | 129 MHz / 215 MHz |
| Programming Technology | Antifuse (one-time programmable) |
| Package | 176-pin TQFP (TQG176) |
| Mounting Type | Surface Mount |
| Grade / Screening | M (military screening variant) |
| Operating Temperature | [DATA_NEEDED: operating temperature range] |
| Configuration | Non-volatile, no external configuration PROM required |
| RoHS Status | [DATA_NEEDED: RoHS status] |
| Moisture Sensitivity Level | [DATA_NEEDED: MSL level] |
A42MX09-TQG176M Pin Configuration
| Pin 1 | IO — User input/output (bank A) |
| Pin 22 | VCCA — Core/array power supply |
| Pin 23 | GND — Ground |
| Pin 44 | VCCI — I/O bank supply |
| Pin 45 | CLKA — Primary clock input (hard-wired low-skew) |
| Pin 66 | IO — User input/output (bank B) |
| Pin 88 | GND — Ground |
| Pin 89 | CLKB — Secondary clock input |
| Pin 110 | VCCA — Core/array power supply |
| Pin 132 | IO — User input/output (bank C) |
| Pin 154 | GND — Ground |
| Pin 175 | IO — User input/output (bank D) |
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
A42MX09-TQG176M is suitable for 6 applications: Legacy Defense System Sustainment, Glue Logic Consolidation, Industrial Control and Automation, Bus Interface and Protocol Bridging, ASIC Prototyping and Low-Volume Replacement, Secure Configuration-Locked Logic.
Legacy Defense System Sustainment
The A42MX09-TQG176M fits defense sustainment programs because its M-grade screening and antifuse non-volatile fabric meet the reliability expectations of fielded military electronics. With 14K gates and 104 I/O, it absorbs obsolete PAL/GAL/PLD consolidation, and the 5.0V-tolerant architecture directly drives legacy TTL-level backplanes. Because the antifuse fabric cannot lose configuration under upset conditions, no external configuration PROM is needed, simplifying obsolescence-driven redesigns in avionics and ground systems. Quantified benefit: one 176-TQFP device replaces dozens of legacy SSI/MSI parts, cutting board area and improving long-term supply continuity through Microchip's high-volume MX platform.
Recommended
Glue Logic Consolidation
The A42MX09-TQG176M is well suited to glue logic consolidation where address decoders, bus transceivers, and state machines once occupied multiple 74-series devices. Its 336 logic cells and 104 user I/O provide ample capacity for medium-scale integration, and predictable antifuse interconnect delays make timing closure straightforward for decode and handshake logic. Placed on a 5V or 3.3V bus, the MX fabric interfaces directly with legacy signal levels, eliminating level-shifting circuitry. The quantified benefit is board-area reduction and a single sourcing point; the trade-off is one-time programmability, so the consolidated function must be fully verified in simulation before programming production devices.
Recommended
Industrial Control and Automation
In industrial controllers, the A42MX09-TQG176M implements deterministic control sequencing, encoder interfacing, and motor-drive supervisory logic. The 129/215 MHz maximum clock rates easily cover PWM and quadrature-decode tasks, and instant-on antifuse configuration means the controller is functional the moment power is applied - valuable in systems with fast watchdog requirements. The 104 user I/O directly connect sensors, relays, and legacy 24V-logic interface circuitry through standard buffering. Industrial users should verify the commercial/industrial temperature variant selection (A grade vs I grade) for the cabinet environment, since the M-suffix part is screened for more severe conditions than typically required on the factory floor.
Recommended
Bus Interface and Protocol Bridging
The A42MX09-TQG176M serves as a protocol bridge between legacy buses (VME-style backplanes, parallel peripheral buses) and modern digital subsystems. Its 5.0V-tolerant I/O and 104 available pins support wide parallel data paths without external transceivers in many designs, while the deterministic antifuse routing delivers consistent propagation delay across power and temperature - important for bus timing budgets. Typical implementations include address decode, byte-swap, wait-state generation, and handshaking at clock rates up to the 129 MHz fabric limit. Because the device is one-time programmable, frozen protocol behavior also provides a certification advantage in regulated systems where post-deployment logic change must be prevented.
Recommended
ASIC Prototyping and Low-Volume Replacement
The MX family is positioned by Microchip as a reliable, single-chip ASIC alternative, and the A42MX09-TQG176M fits low-volume ASIC replacement where mask costs are unjustified. Fourteen thousand system gates accommodate modest synthesized RTL functions, and the 0.45um antifuse process provides stable, production-worthy timing without the configuration-liability of SRAM devices. Compared with an ASIC, NRE is zero and lead time is distributor stock; compared with an SRAM FPGA, the design is secure and powers up instantly. The trade-off is capacity and cost-per-gate - above roughly 14K gates, designers should move to the pin-compatible MX16/MX24 variants rather than forcing density.
Recommended
Secure Configuration-Locked Logic
Applications requiring logic content protection - copy prevention of proprietary algorithms, encryption key handling paths, or anti-tamper designs - benefit from the A42MX09-TQG176M's antifuse fabric. Unlike SRAM FPGAs, there is no bitstream to intercept at power-up because configuration is permanently programmed into the antifuse interconnect, and readback paths do not expose programmed data. With 14K gates, designers can implement DES-class datapaths, authentication state machines, and board-level security controllers. The quantified design consideration is that any functional update requires a new programmed device, so change control and a small programming-ready spares pool are recommended for fielded secure systems.
Recommended
Recommended Products Summary
Engineering reference data for A42MX09-TQG176M — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A42MX09-TQG176A | A42MX16-TQG176M | A42MX24-1TQG176M |
|---|---|---|---|---|
| Package | 176-TQFP | 176-TQFP - same | 176-TQFP - same | 176-TQFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 14000 | 14000 | 24000 (MX16) | 36000 (MX24) |
| Logic Cells | 336 | 336 | [DATA_NEEDED] | [DATA_NEEDED] |
| User I/O | 104 | 104 | [DATA_NEEDED] | [DATA_NEEDED] |
| Supply Voltage | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V |
| Max Clock Frequency | 129 / 215 MHz | 129 / 215 MHz | [DATA_NEEDED] | [DATA_NEEDED] |
| Grade / Screening | M (military) | A (commercial) | M (military) | M (military) |
| Programming Technology | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) |
Key Differentiators
- Military M-grade screening in standard package (vs A42MX09-TQG176A)
- Lowest-cost MX entry in TQFP-176 (vs A42MX16-TQG176M)
- 5.0V-tolerant legacy interface (vs Cross-brand SRAM FPGAs)
Design Notes
Antifuse MX devices are one-time programmable: there is no rework path after programming. Complete full gate-level simulation and static timing analysis before programming production units, and program engineering evaluation devices separately from production lots. Maintain a 20-30% gate and I/O margin in the 14K/104-I/O budget to accommodate late changes without a board spin.
Decouple VCCA (array core) and VCCI (I/O) supplies independently with 0.1 uF ceramic capacitors at each supply pin pair, plus bulk 10 uF near the device. The MX 5V-tolerant I/O can source significant legacy-bus current, so size the VCCI rail for total simultaneous switching I/O current rather than the quiescent core draw.
The 176-TQFP has a 0.5 mm lead pitch - use solder-mask-defined pads per the MX datasheet package drawing and inspect with 10x minimum magnification for solder bridges. Connect hard-wired clock pins (CLKA/CLKB) to low-skew clock sources and keep clock traces length-matched to data within the same bus group for predictable timing in the antifuse fabric.
Compliance Information
Compliance status not stated in verified distributor snippets. Verify RoHS/lead-free flags on the DigiKey or Mouser product page for this exact MPN, or request Microchip certificate of conformance.
