A54SX08A-TQG144A - SX-A FPGA 12K Gates 113 I/O | Microchip
MPN: A54SX08A-TQG144A β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $38.5 | $38.50 |
| 10 | $34.65 | $346.50 |
| 100 | $30.8 | $3,080.00 |
| 500 | $27.72 | $13,860.00 |
| 1,000 | $24.95 | $24,950.00 |
Drop-in alternatives for A54SX08A-TQG144A 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:
A54SX08A-1TQG144A
β Drop-Inπ Reference alternative (not in catalog)
A54SX08A-TQG144I
β Drop-Inπ Reference alternative (not in catalog)
A54SX08A-2TQG144I
β Drop-Inπ Reference alternative (not in catalog)
A54SX08A-TQG144
β Drop-Inπ Reference alternative (not in catalog)
A54SX16A-TQG144A
β Drop-Inβ In Stock
$27.9 / Unit
View Datasheet βA54SX08-1TQG144
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$31 / Unit
View Datasheet βA54SX08A-TQG144A Maximum Ratings & Electrical Characteristics
| Family | SX-A (antifuse FPGA) |
| System Gates | 12000 |
| Typical Usable Gates | 8000 |
| Logic Modules / Cells | 512 |
| User I/O | 113 |
| Maximum System Frequency | 238 MHz |
| Core Supply Voltage | 2.5 V |
| Process Technology | 0.25 um CMOS |
| Programming Technology | Antifuse (one-time programmable) |
| Configuration Memory Type | Non-volatile (no external boot memory) |
| Package | 144-LQFP / TQFP |
| Mounting Type | Surface Mount |
| Temperature Grade | Automotive / extended |
| Design Software | Microchip Libero SoC (Actel Designer) |
A54SX08A-TQG144A 144-lqfp / tqfp Pin Configuration Guide
Complete pinout information for A54SX08A-TQG144A (144-lqfp / tqfp 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 A54SX08A-TQG144A.
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
A54SX08A-TQG144A is suitable for 6 applications: Industrial Control and Automation, Telecommunications Line Cards, Aerospace and Defense Logic, Legacy System Sustainment, Test and Measurement Equipment, Glue Logic Consolidation and Obsolescence Redesign.
Industrial Control and Automation
The A54SX08A-TQG144A consolidates PLC I/O decoding, sensor-interface glue logic, and sequencer state machines that would otherwise occupy multiple TTL/CMOS devices. Its 12,000 system gates and 113 user I/Os provide enough capacity for bus interfacing, address decoding, and interlocked control logic, while the 238 MHz registered performance comfortably covers industrial timing requirements. Because the antifuse configuration is non-volatile, the FPGA is instantly active at power-up with no configuration load delay - a key benefit for machinery that must reach an operational state immediately. Distributor data (Jotrin) explicitly positions this device as automotive-grade 2.5V logic in TQFP-144, supporting extended-temperature factory environments. Place it between a microprocessor bus and local I/O cards, decoupling each 2.5V supply pin with 0.1 uF ceramics.
Recommended
Telecommunications Line Cards
Telecom line cards historically used SX-A antifuse FPGAs for framing, clock distribution, and backplane interface logic. The A54SX08A-TQG144A fits this role with 512 logic modules supporting pipelined datapaths at 238 MHz - sufficient for T1/E1-class framing counters and backplane handshaking. Its single 2.5V core supply simplifies power tree design on densely populated cards, and the antifuse configuration eliminates the configuration PROM and boot sequence required by SRAM FPGAs, improving card availability metrics. The 113 user I/Os cover data, address, and control pin requirements of a typical line card. Designers should reserve spare I/O for JTAG-bound test points and use Libero SoC timing reports to confirm closed-loop timing across the backplane interface before programming the one-time antifuses.
Recommended
Aerospace and Defense Logic
Antifuse FPGAs have long been preferred in defense and aerospace designs because the programmed configuration cannot be read back, protecting proprietary logic, and because the non-volatile antifuse fabric is inherently immune to configuration upsets that affect SRAM cells. The A54SX08A-TQG144A's automotive-grade screening and TQFP-144 surface-mount package support rugged board assemblies, while its fixed one-time programming prevents accidental reconfiguration in the field. Typical uses include flight-hardware glue logic, telemetry encoders, and sensor-interface state machines requiring deterministic, instant-on behavior at power application. At 8,000 typical usable gates, it consolidates discrete 74-series logic on constrained boards. For flight builds, obtain full traceability documentation from Microchip USA or authorized distributors and screen lots to the project's specified level.
Recommended
Legacy System Sustainment
Many legacy military, telecom, and industrial platforms were designed around the SX-A family and still require these exact devices for spares and repairs. The A54SX08A-TQG144A serves direct-sustainment needs because it is pin-to-pin and bitstream-compatible within the family: the TQG144A, TQG144I, and -1/-2 speed-grade variants share the same 144-pin TQFP footprint and terminals, so fielded PCBs accept any qualified variant without rework, as FindIC's cross-reference confirms for TQG144 vs TQG144A. Sustainment teams should qualify at least two source variants (for example, the -1 speed grade as a functional superset) to mitigate distributor stock gaps, and keep Libero SoC legacy toolchains available for re-spinning programming files when design documentation must be regenerated.
Recommended
Test and Measurement Equipment
Bench and automated test instruments use small FPGAs for trigger logic, counter/timer functions, and backplane protocol bridging. The A54SX08A-TQG144A suits these roles with 238 MHz registered performance supporting precision event counting, and 113 flexible I/Os for front-panel, relay-control, and bus interfaces. The antifuse fabric contributes no configuration-load latency, so instruments are measurement-ready within microseconds of power-up, and the design cannot be corrupted by an interrupted reconfiguration during field use. Estimated dynamic power on the 0.25 um process keeps self-heating low in enclosed instruments; designers should verify thermal margin with Libero's power estimator using actual toggle rates. Decouple all supply pins and route high-speed trigger signals with controlled impedance where source-synchronous timing matters.
Recommended
Glue Logic Consolidation and Obsolescence Redesign
A primary SX-A use case is replacing dozens of discrete 74-series devices, PALs/GALs, and small CPLDs with one secure single-chip solution, exactly as Microchip describes for the family: integrating multiple functions into a low-cost, single-chip solution. The A54SX08A-TQG144A's 12,000 system gates absorb address decoders, bus transceivers' control logic, wait-state generators, and interrupt controllers, cutting BOM count and board area. Because the antifuse device is one-time programmable, redesigned boards get tamper-resistant, boot-time-free logic at low unit cost. When executing an obsolescence redesign, map legacy PAL equations into Verilog/VHDL, verify I/O drive and voltage compatibility with surrounding 3.3V/5V-tolerant-era devices per the SX-A datasheet, and budget the TQFP-144 land pattern to match your existing layout for drop-in upgrades.
Recommended
Recommended Products Summary
Engineering reference data for A54SX08A-TQG144A β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX08A-1TQG144A | A54SX08A-TQG144I | A54SX08A-2TQG144I | A54SX16A-TQG144A | A54SX08-1TQG144 |
|---|---|---|---|---|---|---|
| Package | TQFP-144 | TQFP-144 - same | TQFP-144 - same | TQFP-144 - same | TQFP-144 - same | TQFP-144 - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 12,000 | 12,000 | 12,000 | 12,000 | ~24,000 (2x) | 12,000 |
| User I/O | 113 | 113 | 113 | 113 | 113 | 113 |
| Speed Grade | Standard | -1 (faster) | Standard | -2 (fastest) | Standard | -1 |
| Max System Frequency | 238 MHz | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| Core Supply Voltage | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V |
| Programming Type | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) |
Key Differentiators
- Non-volatile antifuse configuration with instant power-up (vs SRAM-based FPGAs)
- Pin-compatible upgrade to higher density (vs A54SX16A-TQG144A)
- Multiple qualified drop-in sourcing options (vs A54SX08A-1TQG144A)
Design Notes
The A54SX08A-TQG144A uses a single 2.5V core supply. Decouple each VCC/VCCA pin pair with 0.1 uF ceramic capacitors placed within 2 mm of the pin, plus bulk 10 uF capacitance per supply rail. Antifuse FPGAs draw no configuration power, so current depends mainly on logic toggle rate - use Libero SoC's power estimator with your actual design activity factors rather than worst-case datasheet numbers to size the 2.5V regulator. Verify supply sequencing requirements against the SX-A family datasheet if other rails share the board.
Antifuse programming is permanent. Do not release the design to programming until timing is fully closed in Libero SoC and board-level simulation (including I/O loading) passes. Always program at least 10-20% spare devices, since a defective board rework consumes programmed parts. Also confirm the exact speed-grade and temperature suffix on purchase orders - mixing TQG144A (standard) with -1/-2 speed grades in a single build can cause lot-to-lot timing margin differences in marginal designs.
The TQFP-144 land pattern follows standard 0.5 mm pitch QFP footprints (approximately 28 x 28 mm body). Assign I/O early in Libero SoC floorplanning to minimize crossing signals and keep high-speed or source-synchronous groups on adjacent pins with nearby ground returns. Provide thermal relief via the ground plane; estimated: a 0.5 W dissipation with typical theta_JA for a 144-pin TQFP (~40-50 C/W class) yields roughly 20-25 C junction rise, comfortable in most enclosures, but confirm with the datasheet thermal table for your airflow conditions.
Compliance Information
Distributor listings describe the device as automotive-grade; the 'G' in TQG144 conventionally indicates the green packaging variant in Microchip ordering codes, but formal RoHS/REACH declarations were not present in the provided data and must be confirmed with Microchip.
