A54SX32-2TQG144
A54SX32-2TQG144 - 32K Gate FPGA, 113 I/O, TQFP-144 | Microchip
The Microchip (Actel) A54SX32-2TQG144 is a 32,000-system-gate antifuse FPGA from the SX family with 2,880 logic cells (CLBs), 113 user I/O, and a -2 speed grade, housed in a 144-pin TQFP (TQG144) surface-mount package operating from 0C to +70C with 3.3V and 5V supply options.
An FPGA (Field-Programmable Gate Array) is a semiconductor device containing a fabric of configurable logic blocks and routing resources that the designer programs to implement custom digital circuits. Within the programmable logic hierarchy, the A54SX32 sits in the antifuse one-time-programmable (OTP) FPGA class: it belongs to the broader families of programmable logic devices (PLDs), which include CPLDs, flash-based FPGAs, and SRAM-based FPGAs. Unlike SRAM FPGAs, antifuse devices are non-volatile, do not require configuration ROM, and are inherently immune to configuration readback, making them attractive in high-reliability and secure designs.
Key features of the A54SX32-2TQG144 include the SX sea-of-modules architecture that delivers high gate utilization and predictable timing, 0.35 um CMOS technology with dual 3.3V/5V supply support for legacy board compatibility, and the compact -2 speed grade. With 32,000 system gates and 2,880 modules, the device integrates glue logic, state machines, bus interfaces, and control functions that previously required multiple discrete ICs, reducing board area, BOM cost, and power consumption.
Technical depth: the SX family uses a sea-of-modules architecture in which each logic module (C-cell and R-cell pairs) provides combinational and sequential capability with local and global routing. Timing is largely deterministic because routing is fixed after place-and-route, which simplifies static timing analysis. Programming occurs at the factory or in programming hardware via antifuse elements, giving extremely low static power and no configuration burden at power-up. The TQFP-144 package provides 113 user I/O with standard 5V-tolerant, 3.3V/5V-compatible buffers.
Typical applications include industrial control and automation, legacy MIL/aerospace-adjacent and communications equipment, bridge logic between 5V and 3.3V subsystems, bus interfacing, and embedded control in instrumentation where the design is frozen and one-time programmability is acceptable.
Design consideration: because the A54SX32 is one-time programmable, designs must be fully verified before programming; plan for programming yield and use Microchip (Actel) Designer software for place-and-route and timing sign-off.
This page synthesizes distributor availability data, same-package drop-in alternatives, and practical design guidance not found in the manufacturer datasheet, with pricing and stock freshness noted as of 2026-09-03.
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