A54SX32-TQ144M - 32K Gate FPGA, 240MHz, TQFP-144 | Microchip
MPN: A54SX32-TQ144M ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1014.3 | $1,014.30 |
| 10 | $963.59 | $9,635.90 |
| 100 | $912.87 | $91,287.00 |
| 500 | $862.16 | $431,080.00 |
| 1,000 | $811.44 | $811,440.00 |
Drop-in alternatives for A54SX32-TQ144M — 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-TQG144M
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1703.75 / Unit
View Datasheet →A54SX32-TQG144I
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$32.3 / Unit
View Datasheet →A54SX32-1TQG144I
✅ Drop-In ⚠️ 参数待验证✓ In Stock
Contact for price
View Datasheet →A54SX32-2TQG144I
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$45.6 / Unit
View Datasheet →A54SX32-3TQ144M
✅ Drop-In📋 Reference alternative (not in catalog)
A54SX32-1TQG144
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$48.1 / Unit
View Datasheet →A54SX32-TQ144M Maximum Ratings & Electrical Characteristics
| Logic Family | Actel SX (54SX) |
| System Gates | 32000 gates |
| Logic Modules | 1800 modules |
| CLB Equivalent Cells | 2880 |
| Maximum Clock Frequency | 240 MHz |
| Process Technology | 0.35 um CMOS |
| Supply Voltage | 3.3 V / 5 V |
| User I/O | 113 I/O |
| Programming Technology | Antifuse (one-time programmable) |
| Architecture | Sea-of-modules |
| Package | 144-TQFP |
| Package Body Size | 20 x 20 mm, 0.5 mm pitch |
| Mounting Type | Surface Mount |
| JESD-30 Code | S-PQFP-G144 |
A54SX32-TQ144M 20 x 20 mm, 0.5 mm pitch Pin Configuration Guide
Complete pinout information for A54SX32-TQ144M (20 x 20 mm, 0.5 mm pitch 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-TQ144M.
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-TQ144M is suitable for 6 applications: Industrial Control and Automation, Aerospace and Defense Subsystems, Communications Line Cards, Legacy Design Sustainment, Test and Measurement Instrumentation, Embedded Processor Support Logic.
Industrial Control and Automation
The A54SX32-TQ144M fits industrial backplane and automation-controller logic because its 240 MHz standard-grade timing covers high-speed state machines, PLC I/O decode, and motor-control sequencing, while 5V-tolerant I/Os on 113 pins interface directly with legacy 5V sensor and actuator buses without level shifters. The antifuse fabric powers up instantly with its configuration permanently burned in, so a controller boots into deterministic logic with no configuration device or boot delay - important for safety interlocks that must be live at power-on. Designers typically place the device between a microprocessor local bus and field I/O, using the deterministic sea-of-modules routing to guarantee fixed bus-interface timing. The trade-off is one-time programmability: any logic change requires a new part, so freeze and archive the locked netlist.
Recommended
Aerospace and Defense Subsystems
Antifuse FPGAs like the A54SX32-TQ144M are historically favored in defense electronics because the one-time-programmable configuration contains no SRAM configuration memory to upset, read back, or corrupt - a meaningful resilience and anti-tamper property for satellite payloads, radar interface boards, and missile-guidance support logic. The instant-on, non-volatile behavior eliminates configuration boot sequencing in systems where power cycles are short and timing-critical, and the sea-of-modules architecture yields deterministic, ASIC-like routing delays that simplify worst-case timing sign-off. Industrial-grade variants (I suffix) extend ambient range for conduction-cooled enclosures. The trade-off is that the 0.35 um process predates modern radiation-hardened flows; for rad-hard applications Microchip's RTAX family (e.g., RTAX2000S) is the designed successor.
Recommended
Communications Line Cards
In telecom and datacom line cards, the A54SX32-TQ144M serves as high-speed glue logic: backplane transceiver framing, clock-domain bridging, and bus arbitration where the 240 MHz toggle rate and short, deterministic interconnect delays of the sea-of-modules fabric outperform contemporary SRAM FPGAs of the same era. Its 113 user I/Os in a compact 20 x 20 mm TQFP provide enough pins to bridge a processor local bus, a backplane connector, and onboard peripherals without a larger footprint. Because configuration is non-volatile, line cards come up functional immediately on hot-swap or reset, simplifying system bring-up. Designers should budget I/O standards carefully - the device is 3.3V/5V tolerant but not programmable-IO-standard-rich like modern FPGAs - and verify signal-integrity on long backplane traces with series termination.
Recommended
Legacy Design Sustainment
A large installed base of Actel SX designs still ships today, and the A54SX32-TQ144M is the primary sustainment path for those boards. Because the antifuse netlist is locked, an identical replacement part programmed with the archived, locked design file reproduces the original timing exactly - no recompilation, no timing re-verification, no regression risk. Sustainment teams should prioritize three actions: archive the locked netlist and programming files, qualify pin-compatible variants (A54SX32-TQG144M for RoHS builds, -1/-2 speed grades) against supply risk, and buy the full remaining lifetime quantity in one event since this mature family has finite stock. Heisener reported roughly 6,240 pieces in stock as of 2026-09-03, underscoring the need for last-time-buy planning.
Recommended
Test and Measurement Instrumentation
Bench and automated test equipment uses the A54SX32-TQ144M for timing generators, trigger logic, and bus-interface sequencing where deterministic gate delays matter for measurement repeatability. The sea-of-modules architecture produces fixed, short interconnect delays, so a timing pattern generated through the fabric has jitter and skew characteristics that do not shift between builds - a property SRAM FPGAs of the same vintage could not guarantee after recompilation. The 240 MHz standard grade (350 MHz with the -3 speed grade variant) covers common counter/timer and pattern-generator clock domains, and 113 I/Os interface with relays, comparators, and instrument backplanes. The one-time-programmable flow suits calibration-controlled instruments: the shipped logic image is permanently fixed and auditable.
Recommended
Embedded Processor Support Logic
The A54SX32-TQ144M is widely used as processor companion logic: address decoders, interrupt controllers, wait-state generators, and DMA request logic glued around embedded CPUs. Its 5V-tolerant, 3.3V/5V I/O directly matches the voltage worlds of legacy microprocessors and microcontrollers, eliminating bus-transceiver glue in mixed-voltage boards. With 32,000 gates and 1,800 modules, the device absorbs functions that would otherwise occupy many discrete 74-series devices, reducing BOM count and board area in the 20 x 20 mm TQFP. Deterministic routing means bus-setup and hold timing to the CPU can be signed off once and locked. Designers should register all asynchronous CPU inputs inside the fabric and use the enable/reset resources conservatively, since antifuse fabric cannot be reconfigured to fix sequencing bugs after programming.
Recommended
Recommended Products Summary
Engineering reference data for A54SX32-TQ144M — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX32-TQG144M | A54SX32-1TQG144I | A54SX32-3TQ144M |
|---|---|---|---|---|
| Package | 144-TQFP | 144-TQFP - same | 144-TQFP - same | 144-TQFP - same |
| Brand | Microchip Technology (Microsemi/Actel) | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 32000 gates | 32000 gates | 32000 gates | 32000 gates |
| Max Clock Frequency | 240 MHz | 240 MHz | [DATA_NEEDED] | 350 MHz |
| User I/O | 113 I/O | 113 I/O | 113 I/O | 113 I/O |
| Supply Voltage | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V |
| Temperature Grade | [DATA_NEEDED] | Commercial (M suffix) | Industrial (I suffix) | Commercial (M suffix) |
| Programming Technology | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) |
| Unit Price (qty 1) | $1,014.30 (as of 2026-09-03) | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- One-time-programmable antifuse configuration (vs XC4000XL-series SRAM FPGAs)
- Higher speed grade available in the same footprint (vs A54SX32-1TQG144I)
- Deterministic ASIC-like routing delays (vs Same-era SRAM FPGA architectures)
- Trade-off: not reprogrammable (vs Modern SRAM FPGAs)
Design Notes
The A54SX32 is one-time programmable: once antifuses are burned, the configuration cannot be erased or corrected. Always complete full functional and timing sign-off on the routed netlist in Libero/Designer before programming production units, and archive the locked design file. A single pin-assignment error discovered after programming means scrapping the device. Budget one engineering programming cycle plus yield loss (typically a few percent) when computing per-unit cost.
The 144-TQFP has a 0.5 mm lead pitch; specify a non-solder-mask-defined footprint per the package mechanical drawing in the Microchip 54SX datasheet and use a 1:1 stencil with 0.1-0.125 mm laser-cut apertures to avoid bridging on the fine-pitch quad leads. Provide solid power and ground planes; connect every VCC/GND pin pair with 0.1 uF ceramic decoupling placed within 3 mm of the pin. Do not route fast clocks under the package center without a ground return via.
The device operates at 3.3V or 5V on a 0.35 um CMOS process. Verify I/O bank voltage compatibility: 5V-tolerant inputs must not be driven above the absolute maximum even when the core runs at 3.3V. Because dynamic power scales with toggle rate, high-activity clock trees at 240 MHz dominate consumption; per Microchip product literature the family emphasizes low power versus SRAM FPGAs, but confirm exact ICC for your design using the power estimation tooling in Libero. Sequence power monolithically - no rail-order requirements exist for antifuse silicon.
With 113 user I/Os driving backplane-scale loads, add 22-33 ohm series termination on outputs driving traces longer than roughly 1/6 rise-time equivalent electrical length. Antifuse routing delays are deterministic, so once termination is characterized on a prototype the timing holds across all production units - a genuine advantage over recompiled SRAM FPGA builds. Keep JTAG (TDI/TMS/TCK/TDO) traces short with 10 kohm pull-ups on TMS and TDI to guarantee reliable in-system programming after board assembly.
Compliance Information
Compliance status for this exact ordering code was not stated in the verified web data. Note that the related ordering code A54SX32-TQG144M denotes the RoHS/lead-free package finish revision; verify current compliance certificates with Microchip for this legacy device.
