A54SX32-1TQG176 - 32K Gate FPGA 280MHz TQFP-176 | Microsemi
MPN: A54SX32-1TQG176 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $62.5 | $62.50 |
| 10 | $57.3 | $573.00 |
| 100 | $51.9 | $5,190.00 |
| 500 | $47.2 | $23,600.00 |
| 1,000 | $43.6 | $43,600.00 |
Drop-in alternatives for A54SX32-1TQG176 — 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:
A54SX32-1TQG176I
✅ Drop-In✓ In Stock
$45.2 / Unit
View Datasheet →A54SX32-2TQG176I
✅ Drop-In✓ In Stock
$55.1 / Unit
View Datasheet →A54SX32-TQG176I
✅ Drop-In✓ In Stock
$86.75 / Unit
View Datasheet →A54SX32-TQG176
✅ Drop-In✓ In Stock
$31.2 / Unit
View Datasheet →A54SX32-1TQ176
✅ Drop-In📋 Reference alternative (not in catalog)
A54SX32-1TQG176 Maximum Ratings & Electrical Characteristics
| Series | SX (Actel SX family) |
| System Gates | 32000 gates |
| Logic Cells / Modules | 1800 cells |
| Configurable Logic Blocks (CLBs) | 2880 |
| Maximum Clock Frequency | 280 MHz |
| Process Technology | 0.35 um CMOS |
| Supply Voltage | 3 V to 3.6 V and 4.75 V to 5.25 V |
| Number of I/Os | 147 |
| Package / Case | 176-LQFP (176-TQFP, 24x24 mm) |
| Terminal Pitch | 0.5 mm |
| Mounting Type | Surface Mount |
| Programming Type | Antifuse (one-time programmable) |
| Speed Grade | -1 |
| Packaging | Tray |
| RoHS Status | Lead free / RoHS Compliant |
| Propagation Delay | 800 ps |
A54SX32-1TQG176 176-lqfp (176-tqfp, 24x24 mm) Pin Configuration Guide
Complete pinout information for A54SX32-1TQG176 (176-lqfp (176-tqfp, 24x24 mm) package). 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 A54SX32-1TQG176.
Refer to the datasheet for full pin configuration.
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
A54SX32-1TQG176 is suitable for 6 applications: Industrial Control and Automation, Communications and Networking Logic, Aerospace and Defense Control Logic, Test and Measurement Equipment, Legacy 5V System Retrofit and Integration, Secure Embedded Controllers.
Industrial Control and Automation
The A54SX32-1TQG176 fits industrial control because its antifuse configuration is instantly active at power-up with no external boot PROM, eliminating the boot-failure failure mode critical in factory automation. Its dual supply operation (3V-3.6V core, 4.75V-5.25V I/O) directly interfaces with 5V legacy PLC I/O, sensor lines, and 24V-buffered logic front ends through level-shifting transceivers. The SX sea-of-modules architecture handles deterministic state machines and motor-control sequencing at up to 280 MHz, far exceeding typical industrial logic timing needs of tens of MHz, while the 147 user I/Os consolidate glue logic, counters, and communication interfaces that previously occupied multiple 74-series devices. For extended-temperature deployments, pair with the industrial-graded A54SX32-1TQG176I on the same footprint.
Recommended
Communications and Networking Logic
The A54SX32-1TQG176 is well suited to communications backplane glue logic because the SX architecture delivers deterministic interconnect delays, simplifying timing closure on protocol interfaces such as parallel FIFO handshakes, HDLC framers, and address decoders. Its 0.35 um CMOS antifuse process and 280 MHz maximum toggle rate comfortably support 50-100 MHz class bus interfaces, and the 800 ps-class propagation delay keeps critical paths short. The 147 I/Os in the 24x24 mm TQFP allow dense dual-ported register banks and bus bridges between microprocessors and line-card PHYs. Because antifuse interconnect is fixed after programming, signal integrity and timing do not shift over temperature and voltage the way SRAM-routing parts can, an advantage in telecom racks requiring predictable latency.
Recommended
Aerospace and Defense Control Logic
The A54SX32-1TQG176 serves aerospace and defense control logic because Actel SX antifuse FPGAs are one-time programmable and non-volatile: configuration cannot be read back, corrupted by radiation-induced configuration upsets typical of SRAM cells, or modified in the field, providing inherent design security. The family was widely qualified into avionics, satellite payload control, and military test equipment for exactly these properties. Its instant-on behavior satisfies power-up requirements where SRAM FPGAs need a boot sequence, and the 32K-gate capacity accommodates telemetry encoders, bus interface state machines, and voter logic. The XAIPART catalog also carries the rad-tolerant RTAX-series parts from the same Microsemi lineage for missions requiring higher reliability grades.
Recommended
Test and Measurement Equipment
The A54SX32-1TQG176 fits bench and automated test equipment because antifuse FPGAs power up instantly with functional logic, removing configuration-latency gaps that complicate measurement sequencing at system reset. The SX sea-of-modules architecture provides the deterministic, glitch-free decode needed for counter/timer chains and trigger logic, while the 280 MHz toggle capability and 800 ps-class delays support timing-resolution requirements in the tens-of-nanoseconds range typical of data-acquisition controllers. The dual 3.3V/5V supply operation eases integration with instrument backplanes built on 5V TTL standards, and 147 I/Os drive multi-channel relay matrices, ADC control buses, and front-panel interfaces from a single programmable device, reducing board complexity and part count.
Recommended
Legacy 5V System Retrofit and Integration
The A54SX32-1TQG176 is a strong choice for retrofitting or extending 5V-based legacy systems, a task where modern low-voltage FPGAs require level translators on every I/O bank. Its I/O supply range of 4.75V to 5.25V allows direct connection to 5V TTL and CMOS signals, while the 3V-3.6V core rail keeps internal power modest. The 32K-gate SX fabric consolidates obsolete PAL, GAL, and 74-series glue logic into one programmable device, and the antifuse configuration preserves the legacy system's instant-on power-up profile with no firmware boot dependency. Designers compiling in Libero SoC can port legacy ABEL or schematic designs, and the TQFP-176 footprint supports repair-volume board respins without redesigning around unavailable legacy programmable logic.
Recommended
Secure Embedded Controllers
The A54SX32-1TQG176 addresses secure embedded controller requirements because antifuse bitstreams cannot be dumped or cloned, unlike SRAM FPGA configurations stored in external flash. IP cores, decryption keys, and authentication state machines programmed into the SX fabric are physically embedded in programmed antifuse switches, giving hardware-level design protection valued in licensing enforcement, pay-TV conditional access, and secure communications terminals. The device's instant-on operation means secure logic is active before external processors boot, enabling early-stage boot verification. With 1,800 cells and 147 I/Os, it implements AES-class state machines, challenge-response controllers, and bus firewalls, while dual-supply operation bridges secure 3.3V cores to legacy 5V peripherals without additional translation silicon.
Recommended
Recommended Products Summary
Engineering reference data for A54SX32-1TQG176 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX32-1TQG176I | A54SX32-2TQG176I | A54SX32-TQG176I | A54SX32-1TQ176 |
|---|---|---|---|---|---|
| Package | 176-TQFP (24x24 mm) | 176-TQFP (24x24 mm) - same | 176-TQFP (24x24 mm) - same | 176-TQFP (24x24 mm) - same | 176-TQFP - same |
| Brand | Microsemi (Microchip) | Microsemi (Microchip) | Microsemi (Microchip) | Microsemi (Microchip) | Microsemi (Microchip) |
| System Gates | 32000 | 32000 | 32000 | 32000 | 32000 |
| Speed Grade | -1 | -1 | -2 (faster) | standard | -1 |
| Temperature Grade | Commercial | Industrial | Industrial | Industrial | Commercial |
| Supply Voltage | 3V-3.6V, 4.75V-5.25V | 3V-3.6V, 4.75V-5.25V | 3V-3.6V, 4.75V-5.25V | 3V-3.6V, 4.75V-5.25V | 3.3V/5V |
| Max Frequency | 280 MHz | 280 MHz | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| User I/O | 147 | 147 | 147 | 147 | 147 |
Key Differentiators
- Lowest-cost speed grade in the SX32 176-TQFP lineup (vs A54SX32-2TQG176I)
- Commercial temperature grade keeps cost minimal (vs A54SX32-1TQG176I)
- Dual 3.3V/5V supply operation (vs A54SX32-1TQ176)
Design Notes
The A54SX32-1TQG176 requires two supply rails: 3.0V-3.6V and 4.75V-5.25V per the verified specification data. Decouple each rail with at least 0.1 uF ceramic capacitors at multiple package corners plus a bulk 10 uF capacitor per rail. Antifuse FPGAs draw minimal static current but switching current scales with clock frequency and logic activity; budget dynamic current using Libero timing simulation power estimates. Observe power-rail sequencing guidance in the SX family datasheet before asserting I/O signals.
The 176-TQFP has a 0.5 mm terminal pitch with leads protruding on four sides; design the land pattern per the Microchip 54SX datasheet mechanical drawing (24x24 mm body). Fan out I/O with 0.2 mm trace/space routing from the perimeter, and place series termination resistors close to the package for 5V-logic edges. Because antifuse FPGAs are one-time programmable, reserve test points on programming and JTAG-class diagnostic pins so a misprogrammed unit can be diagnosed before discard.
Antifuse devices cannot be reprogrammed: a design change after programming requires a new device, so fully verify timing at the -1 speed grade over your temperature range in Libero before committing to programming. Do not substitute the commercial-temperature base part into industrial applications - use the A54SX32-1TQG176I or -2TQG176I variants. Also verify the 5V I/O rail stays within 4.75V-5.25V; undervoltage can cause logic errors that cannot be traced after the one-time configuration.
Compliance Information
xsourcepart.com listing states Lead free / RoHS Compliant. REACH, halogen-free, and conflict-minerals status not stated in provided data.
