A54SX08A-2TQG100I - 12K Gate SX-A FPGA 81 I/O TQFP-100 | Microchip
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Drop-in alternatives for A54SX08A-2TQG100I — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX08A-2TQG100
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View Datasheet →A54SX08A-2TQG100I Maximum Ratings & Electrical Characteristics
| Programmable Logic Type | Anti-fuse FPGA |
| Family | SX-A (SXA) |
| System Gates | 12000 gates |
| Logic Cells / Modules | 768 |
| Number of I/O | 81 |
| Speed Grade | -2 |
| Maximum Clock Frequency | 313 MHz |
| Supply Voltage (Nominal) | 5 V |
| Supply Voltage Range | 4.5 V to 5.5 V |
| I/O Standards Supported | 2.5 V, 3.3 V, 5 V |
| Technology | 0.22 um / 0.25 um CMOS anti-fuse |
| Package | 100-pin TQFP (TQG100 / LQFP-100) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (Industrial) |
| Programming Type | One-Time Programmable (OTP) anti-fuse |
| Configuration Device Required | No (non-volatile anti-fuse) |
| RoHS Status | Lead Free / RoHS Compliant |
A54SX08A-2TQG100I 100-pin tqfp (tqg100 / lqfp-100) Pin Configuration Guide
Complete pinout information for A54SX08A-2TQG100I (100-pin tqfp (tqg100 / lqfp-100) package) with 100 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 A54SX08A-2TQG100I.
Refer to the datasheet for full pin configuration.
Estimated pin count: 100 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
A54SX08A-2TQG100I is suitable for 6 applications: Industrial Control and Automation, Aerospace and Defense Sub-systems, Telecommunications Line Cards, Test and Measurement Fixtures, ASIC Prototyping and Bridging, Power-Up Critical Embedded Systems.
Industrial Control and Automation
The A54SX08A-2TQG100I fits industrial control panels, PLC I/O modules, and motor-interface logic because its -40C to +85C industrial rating matches unconditioned factory-floor enclosures, and its 5V core aligns with legacy 5V industrial backplanes. With 12K gates and 768 logic cells, it consolidates state machines, address decoders, and watchdog/interlock logic that would otherwise occupy several TTL or CPLD devices. The 81 user I/Os support 2.5V, 3.3V, and 5V standards, letting one device bridge new 3.3V controllers to legacy 5V sensors. Because the anti-fuse configuration is non-volatile, the board powers up with logic instantly active - no configuration PROM or boot delay - which shortens fault-recovery time in safety interlock paths.
Recommended
Aerospace and Defense Sub-systems
Defense and avionics boards value the A54SX08A-2TQG100I for two reasons: the anti-fuse fabric cannot be read back, providing inherent configuration security against reverse engineering, and OTP configuration is immune to single-event configuration upsets that afflict SRAM FPGAs in radiation environments. The SX-A family was widely adopted in space and military heritage designs, and Microchip maintains continuity of the product line for long-lifecycle programs. The industrial -40C to +85C rating, 12K gate capacity, and deterministic anti-fuse routing delays simplify timing sign-off for interface bridging, telemetry encoding, and discrete I/O processing. Designers should freeze the fusemap under configuration control, since OTP devices cannot be field-updated.
Recommended
Telecommunications Line Cards
Telecom line cards and backplane adapters frequently combine a 5V-tolerant control plane with newer 3.3V data paths; the A54SX08A-2TQG100I addresses exactly this mix with its 2.5V/3.3V/5V I/O support on a 5V core supply. Its 313 MHz-class fabric timing and 12K gate count handle framing logic, clock division, status multiplexing, and hot-swap control without a soft CPU. The TQFP-100's 0.5 mm pitch leads accommodate standard telecom card assembly, and the instant-on OTP configuration means the card reports to the shelf manager immediately at power-up. Deterministic interconnect delays also make it straightforward to close timing on fixed-frequency backplane interfaces such as TDM buses.
Recommended
Test and Measurement Fixtures
Bench and production test fixtures use the A54SX08A-2TQG100I as reconfigurable-in-design glue logic between a PC interface and device-under-test sockets. The 81 I/Os and 768 logic cells implement pattern generators, bus formatters, and threshold comparators, while 5V-tolerant I/Os directly drive legacy TTL-level test electronics. Because the anti-fuse device configures instantly at power-up, fixture startup scripts do not wait for bitstream download - useful in high-throughput manufacturing lines running thousands of power cycles per day. The industrial temperature rating tolerates non-air-conditioned production floors. Teams typically keep a small pool of programmed devices; OTP means each design revision needs fresh parts, so maintain a programmed-inventory buffer.
Recommended
ASIC Prototyping and Bridging
Before committing to an ASIC tape-out, engineers can map control-plane RTL into the A54SX08A-2TQG100I's 12K gates to validate protocol behavior at system speed alongside real peripherals. Anti-fuse routing gives deterministic delays, so timing results transfer meaningfully to downstream implementation. In shipping products, the same device serves as a bus bridge - for example connecting a microprocessor bus to legacy peripherals with different voltage domains, exploiting the 2.5V/3.3V/5V I/O flexibility. Compared with reprogramming an SRAM FPGA for each experiment, the OTP flow enforces a disciplined design-freeze process; most teams prototype multiple builds in parallel across several devices before finalizing one fusemap.
Recommended
Power-Up Critical Embedded Systems
Systems that must be logically active within microseconds of power application - safety interlocks, relay control matrices, and instant-on monitoring units - benefit from the A54SX08A-2TQG100I's non-volatile anti-fuse configuration. Unlike SRAM FPGAs, there is no configuration memory to load and no bootloader: the fusemap is physically present in silicon, so logic is valid as soon as supply rails settle. The 5V core tolerates noisy industrial supplies (4.5V to 5.5V range), and the -40C to +85C rating covers outdoor cabinets. Designers should still add brown-out supervision on the 5V rail, since OTP logic cannot reinitialize a partially corrupted state machine without a full power cycle.
Recommended
Recommended Products Summary
Engineering reference data for A54SX08A-2TQG100I — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX08A-2TQG100 | A54SX08A-1TQG100 | A54SX16A-2TQG100I | A54SX32A-2TQG100I |
|---|---|---|---|---|---|
| Package | TQFP-100 (TQG100) | TQFP-100 - same | TQFP-100 - same | TQFP-100 - same | TQFP-100 - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 12,000 | 12,000 | 12,000 | 24,000 | 48,000 |
| Logic Cells | 768 | 768 | 768 | [DATA_NEEDED] | [DATA_NEEDED] |
| User I/O | 81 | 81 | 81 | [DATA_NEEDED] | [DATA_NEEDED] |
| Speed Grade | -2 | -2 | -1 | -2 | -2 |
| Operating Temperature | -40C to +85C (Industrial) | 0C to +70C (Commercial) | 0C to +70C (Commercial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| Core Supply Voltage | 5 V (4.5 V to 5.5 V) | 5 V (4.5 V to 5.5 V) | 5 V (4.5 V to 5.5 V) | 5 V (4.5 V to 5.5 V) | 5 V (4.5 V to 5.5 V) |
| Configuration | OTP anti-fuse (no PROM needed) | OTP anti-fuse | OTP anti-fuse | OTP anti-fuse | OTP anti-fuse |
Key Differentiators
- Non-volatile anti-fuse fabric with no configuration PROM (vs SRAM-based FPGAs (e.g., modern Xilinx/Intel families))
- 5V-tolerant I/O plus 2.5V/3.3V/5V standards (vs A54SX16A-2TQG100I)
- Industrial temperature rating in the -I suffix (vs A54SX08A-2TQG100)
- Deterministic anti-fuse routing delays (vs A54SX32A-2TQG100I)
Design Notes
The A54SX08A-2TQG100I requires a nominal 5V core supply with a 4.5V to 5.5V operating range. Many modern boards are 3.3V-only; if yours is, plan a 5V rail or select a lower-voltage FPGA family before layout. Decouple the 5V rail with at least 10 uF bulk plus 0.1 uF ceramic per supply pin group. I/O banks can reference 2.5V, 3.3V, or 5V standards - group same-voltage I/Os together in the pin assignment to avoid mixed-domain routing complications on the 100-pin TQFP.
This is a one-time-programmable anti-fuse device: the fusemap cannot be corrected after programming. Always compile in Microchip Libero (or legacy Actel Designer), run static timing against the -2 speed grade files, and validate on a sample programmed device before committing a production batch. Version-control the final STAPL file and the exact Libero project, since a design bug after programming requires new silicon. Budget for engineering scrap - a common practice is programming 10 to 20 percent extra units per build.
The TQFP-100 uses 0.5 mm lead pitch; specify a solder-mask-defined land pattern per the package mechanical drawing in the Microchip SX-A datasheet and use a no-clean or water-wash paste compatible with 0.5 mm pitch to prevent bridging on corner pins. Provide solid ground pour under the device and short return paths for I/O banks switching 5V levels, which produce larger ground bounce than 3.3V logic. Avoid routing clocks on the package corners where inductive lead paths are longest.
Estimated: at moderate switching activity the 12K-gate SX-A die dissipates well under 1 W in a TQFP-100, whose exposed-lead package dissipates heat primarily through the leads into the PCB. The Microchip SX-A datasheet provides package-specific thermal characteristics and notes they depend on device, package, ambient temperature, and airflow. For continuous operation at +85C ambient, verify your junction temperature budget using the datasheet theta-JA values and your actual switching current; reducing unnecessary clock trees in the design is the easiest thermal lever.
Compliance Information
Verified web data describes the part as Lead Free and RoHS compliant (100-pin TQFP, 1.4 mm height). REACH, halogen-free, and conflict-minerals statuses were not stated in the provided data.
