A54SX16P-2TQG176 - 16K Gate SX FPGA 320MHz 147 I/O | Microchip
MPN: A54SX16P-2TQG176 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $68.5 | $68.50 |
| 10 | $62.1 | $621.00 |
| 100 | $55.4 | $5,540.00 |
| 500 | $49.8 | $24,900.00 |
| 1,000 | $44.2 | $44,200.00 |
Drop-in alternatives for A54SX16P-2TQG176 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX16P-2TQG176I
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$42 / Unit
View Datasheet →A54SX16P-TQG176
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$47.2 / Unit
View Datasheet →A54SX16-2TQG176
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$339.14 / Unit
View Datasheet →A54SX16-1TQG176
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View Datasheet →A54SX16-1TQG176I
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View Datasheet →A54SX16P-2TQG176 Maximum Ratings & Electrical Characteristics
| Family | Actel SX (A54SX16P) |
| System Gates | 16000 |
| Configurable Logic Blocks (CLBs) | 1452 |
| User I/O | 147 |
| Maximum Clock Frequency | 320 MHz |
| Speed Grade | -2 |
| Core Supply Voltage | 5 V |
| I/O Supply Voltage | 3.3 V / 5 V |
| Technology | 0.35 um CMOS |
| Programming Technology | Antifuse (one-time programmable) |
| Architecture | Sea-of-modules |
| Number of Pins | 176 |
| Package | 176-LQFP / TQFP |
| Terminal Pitch | 0.5 mm |
| Mounting Style | Surface Mount |
| Operating Temperature Range | 0 C to +70 C (commercial) |
| Lead Free | Yes (G suffix, per PCB Electronics listing) |
A54SX16P-2TQG176 176-lqfp / tqfp Pin Configuration Guide
Complete pinout information for A54SX16P-2TQG176 (176-lqfp / tqfp package) with 176 pins. This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for A54SX16P-2TQG176.
Refer to the datasheet for full pin configuration.
Estimated pin count: 176 pins (digital package)
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
A54SX16P-2TQG176 is suitable for 6 applications: Industrial Automation Control, Telecommunications Line Cards, Test and Measurement Equipment, Avionics and Defense Sustainment, Battery Management and Power Supervision Logic, Security and Surveillance Interface Boards.
Industrial Automation Control
The A54SX16P-2TQG176 fits industrial control boards that need deterministic glue logic between PLC backplanes, motor controllers, and sensor banks. Its 320 MHz class timing supports fast state machines and bus arbitration, while 147 user I/O in a 176-pin TQFP consolidates discrete 74-series logic into one device, cutting board area and BOM count. The 3.3V/5V I/O structure interfaces directly with legacy 24V-buffered TTL-level signals through standard translators. Because the antifuse configuration is non-volatile and instant-on, the FPGA is operational the moment power is applied - valuable on factory floors where a system reboot delay of even hundreds of milliseconds is unacceptable.
Recommended
Telecommunications Line Cards
Legacy telecom line cards frequently use SX-series antifuse FPGAs for channel framing, HDLC processing, and backplane interface glue logic. The A54SX16P-2TQG176's sea-of-modules architecture provides short, deterministic interconnect delays, which matters for tight framing deadlines at T1/E1 rates, and its 16000-gate capacity with 1452 logic modules handles multi-channel aggregation. Instant-on antifuse configuration eliminates the configuration delay and single-point-of-failure PROM found in SRAM FPGA designs, improving carrier-grade availability. Its 5V-tolerant I/O eases integration into older 5V backplanes common in sustainment programs for installed telecom equipment.
Recommended
Test and Measurement Equipment
Bench and automated test instruments use the A54SX16P-2TQG176 as timing sequencer, trigger logic, and instrument bus interface. The -2 speed grade supports counter/timer paths at rates up to 320 MHz class, and the 16K gate density accommodates trigger state machines plus data formatting. Antifuse one-time programming suits production test fixtures, where the design is frozen and security against design copying is valued. The 176-pin TQFP with 0.5 mm pitch is hand-solderable for lab rework, and the 5V I/O tolerance simplifies stimulus electronics driving TTL-level test points on legacy units under test.
Recommended
Avionics and Defense Sustainment
Sustainment programs for installed avionics and defense electronics rely on SX antifuse FPGAs because original designs were frozen decades ago and the parts remain procurable. The A54SX16P-2TQG176 replicates the original 16K-gate logic with 147 I/O and instant-on behavior required by MIL-STD-1553 and ARINC interface boards. The non-volatile antifuse fabric has no configuration readback path, supporting design-security requirements, and its deterministic timing simplifies recertification of timing-critical paths. For extended-temperature airframes, the identical-footprint A54SX16P-2TQG176I industrial grade substitutes without PCB change.
Recommended
Battery Management and Power Supervision Logic
In battery management systems, the A54SX16P-2TQG176 implements fast protection state machines - overcurrent, overvoltage, and contactor sequencing - that must react within microseconds. Placed alongside the BQ76952 monitor, the FPGA aggregates cell-level flags and executes hard-wired cutoff logic independent of a microcontroller, providing a redundant safety layer for functional-safety architectures. Instant-on antifuse operation means protection logic is live during power-up transients, unlike microcontroller solutions that need boot time. The 3.3V I/O interface connects cleanly to monitor ICs and isolated transceivers on the communication side.
Recommended
Security and Surveillance Interface Boards
Surveillance and access-control hardware uses the A54SX16P-2TQG176 for camera interface bridging, panel I/O expansion, and tamper-detection logic. The 147 user I/O handle parallel sensor arrays and relay drive outputs, while deterministic 320 MHz class timing supports precise event timestamping. Antifuse configuration cannot be altered in the field, hardening deployed units against configuration-tamper attacks compared with SRAM FPGAs whose bitstreams can be disturbed. Its 5V-tolerant inputs directly accept legacy alarm-loop signals, and the commercial 0-70 C rating suits indoor control-room enclosures where the industrial I-grade is unnecessary.
Recommended
Recommended Products Summary
Engineering reference data for A54SX16P-2TQG176 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX16P-2TQG176I | A54SX16P-TQG176 | A54SX16-2TQG176 | A54SX16-1TQG176 |
|---|---|---|---|---|---|
| Package | 176-LQFP / TQFP | 176-LQFP / TQFP - same | 176-LQFP / TQFP - same | 176-LQFP / TQFP - same | 176-LQFP / TQFP - same |
| Brand | Microchip Technology (Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 16000 | 16000 | 16000 | 16000 | 16000 |
| User I/O | 147 | 147 | 147 | 147 | 147 |
| Speed Grade | -2 (320 MHz class) | -2 (320 MHz class) | Standard grade (slower) | -2 (320 MHz class) | -1 (slower) |
| 5V-Tolerant P-Die I/O | Yes | Yes | Yes | No (base die) | No (base die) |
| Temperature Range | 0 C to +70 C (commercial) | Industrial (wider range) | [DATA_NEEDED] | [DATA_NEEDED] | Industrial |
| Programming Technology | Antifuse (one-time programmable) | Antifuse | Antifuse | Antifuse | Antifuse |
Key Differentiators
- 5V-tolerant P-die I/O (vs A54SX16-2TQG176)
- Fastest -2 speed grade in the family (vs A54SX16-1TQG176)
- Commercial grade cost efficiency (vs A54SX16P-2TQG176I)
- Instant-on non-volatile configuration (vs A54SX16P-TQG176)
Design Notes
Provide a clean 5 V core rail with 0.1 uF ceramic bypass capacitors at each VCC/GND pin pair placed within 2 mm of the device, plus 10 uF bulk capacitance per supply domain. SX-family dynamic current scales with clock toggle rate and I/O loading, so run the Microchip Designer power estimator with your actual utilization and toggle rates rather than assuming worst-case numbers. The 3.3V/5V I/O bank needs its own decoupling; never share the core rail with noisy I/O return paths.
Antifuse FPGAs are one-time programmable: there is no reflow-and-reprogram recovery. Program on a Silicon Sculptor programmer before assembly or use socketed prototypes during bring-up, and treat the programming house as part of your production lead time. Additionally, the P-die and non-P die share the same TQFP-176 footprint but differ in I/O voltage tolerance - swapping A54SX16P-2TQG176 for a non-P A54SX16-2TQG176 on a 5V-driven bus can overstress inputs. Verify I/O standards before any substitution.
The 176-pin TQFP with 0.5 mm pitch requires care in fanout: use 0.2 mm via-in-pad or dogbone escapes, and keep the outer two pin rings escape-routed on layer 1 to avoid squeezing traces under the body. Since the SX16 provides deterministic interconnect timing, lock critical I/O with Designer constraints early and honor the datasheet TQFP land pattern; a 10% oversize pad improves inspectability without violating pitch clearance for this 0.35 um-generation device.
Compliance Information
G suffix denotes lead-free package; PCB Electronics listing marks the part 'LEAD FREE'. RoHS/REACH declarations should be confirmed against the current Microchip product page for the specific date code.
