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A54SX32A-1FGG484 - 32K Gate FPGA, 484-FBGA | Microchip
A54SX32A-1FGG484

A54SX32A-1FGG484 - 32K Gate FPGA, 484-FBGA | Microchip

The Microchip Technology (Microsemi) A54SX32A-1FGG484 is a 32,000-gate SX-A family antifuse FPGA with 1800 usable cells, a 278 MHz system performance rating, and 249 user I/O, housed in a 484-ball FBGA package operating from a 2.5 V core supply. An FPGA (Field-Programmable Gate Array) is a semiconductor device containing a fabric of programmable logic blocks and interconnects that designers configure after manufacturing. Within the programmable logic hierarchy, the A54SX32A belongs to the one-time-programmable (OTP) antifuse class, positioned under FPGAs, programmable logic ICs, and digital semiconductors. Antifuse technology stores its configuration physically, so it retains programming permanently, powers up instantly, and is inherently resistant to configuration readback. Key features of the A54SX32A-1FGG484 include 32K gates of SX-A fabric built on a 0.25 micron CMOS process, the -1 standard speed grade, and 249 user-available I/O on the 484-ball fine-pitch BGA. The 2.5 V supply keeps dynamic power low, while the antifuse architecture eliminates configuration PROMs and boot time entirely. Technically, the SX-A architecture uses a sea-of-modules fabric with combinational and sequential cells connected by antifuse-programmed routing. Because the routing is programmed once, signal paths exhibit low, deterministic impedance, supporting the 278 MHz toggle-rate capability specified for the family. The part is lead free per distributor data (PCB Electronics lists it as LEAD FREE). Typical applications include glue-logic integration, bus interfacing, industrial control, telecommunications line-card functions, and military/aerospace designs that value the configuration security and instant-on behavior of antifuse FPGAs. A key design consideration: antifuse devices are one-time programmable, so debugging requires careful up-front simulation; prototype on a slower-speed or larger-density same-family device before committing the -1 speed grade. This page adds value beyond the datasheet by consolidating distributor pricing, stock levels, drop-in family alternatives, and procurement guidance in one place.

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A54SX32A-1PQG208I - SX-A FPGA 48K Gates 208-PQFP | Microchip
A54SX32A-1PQG208I

A54SX32A-1PQG208I - SX-A FPGA 48K Gates 208-PQFP | Microchip

The Microchip Technology (formerly Microsemi/Actel) A54SX32A-1PQG208I is an antifuse FPGA from the SX-A family delivering 32K gates (48K system gates) with 1800 logic cells, up to 278 MHz system performance, and a 0.25 um process, housed in a 208-pin PQFP (QG) package rated for the industrial temperature range. An FPGA (Field-Programmable Gate Array) is a semiconductor device that implements digital logic through programmable interconnect and configurable logic blocks (CLBs), sitting above standard logic ICs and below ASICs in the programmable-logic hierarchy. The SX-A family uses a one-time-programmable antifuse architecture, which means the configuration is hard-wired at programming time rather than loaded from an external configuration memory at every power-up, giving inherent immunity to configuration readback and radiation-induced configuration upset. Key features include 2880 CLBs, 174 user I/O pins, 2.5V core operation, and a -1 speed grade supporting toggle rates up to 278 MHz. The antifuse fabric provides low on-resistance interconnect and deterministic routing delays, while total static power is far lower than SRAM FPGAs of similar density, making the family attractive for power-sensitive, high-reliability designs. Technically, the SX-A architecture combines sea-of-modules logic with a three-level metal routing fabric on a 0.25 um CMOS process. The D-module (combinational) and R-module (register-capable) cells give an efficient mix for both datapath and control logic. Because the antifuse is programmed once, design changes require a new device - a deliberate trade of flexibility for security, cost, and reliability. Typical applications include industrial control and automation glue logic, communications interface bridging, aerospace and defense systems that benefit from configuration immunity, and medical equipment requiring stable single-chip logic integration. Design consideration: the 2.5V core requires a dedicated supply rail and correct power sequencing relative to I/O banks; plan the 208-pin PQFP land pattern and thermal relief early since the package is not drop-in compatible with other footprints. This page synthesizes distributor pricing, same-footprint alternatives, and practical design notes beyond what the manufacturer datasheet alone provides.

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A54SX32A-1PQG208M - 48K Gate SX-A FPGA, PQFP-208 | Microchip
A54SX32A-1PQG208M

A54SX32A-1PQG208M - 48K Gate SX-A FPGA, PQFP-208 | Microchip

The Microchip Technology A54SX32A-1PQG208M is a 48,000-system-gate antifuse FPGA from the SX-A family, delivered in a 208-pin quad flat package (PQFP-208, 0.5 mm pitch) with 174 user I/O, 2880 logic cluster blocks (CLBs), and a toggle frequency of up to 278 MHz at the -1 speed grade. The M suffix denotes moisture-sensitivity-level-specific tray/packing per Microchip ordering codes. An FPGA (Field-Programmable Gate Array) is a programmable logic device that implements custom digital circuits through configurable logic blocks and routing. The SX-A family uses Actel's antifuse programming technology, meaning interconnects are permanently programmed at power-up in one-time-programmable (OTP) fashion - unlike SRAM FPGAs, there is no configuration ROM needed and the bitstream cannot be read back, providing inherent design security and instant-on behavior. Key features include the sea-of-modules architecture composed of combinatorial cells (C-cells) and register cells (R-cells), which minimizes chip area lost to routing and delivers gate utilization and performance approaching ASIC efficiency. The 278 MHz toggle rate supports performance-intensive glue logic, bus interfaces, and state machines, while the antifuse fabric keeps static power low. Technically, the device integrates multiple board-level functions into a single low-cost chip; Absolute Maximum Ratings from the SX-A family datasheet list VCCI (I/O supply) at -0.3 V to +6.0 V DC. The PQFP-208 surface-mount package suits reflow assembly on standard PCB processes. Typical applications include industrial control glue logic, communications line-card interfaces, legacy defense and avionics system sustainment, and test equipment where single-chip integration and design security matter. Design consideration: because SX-A devices are OTP, verify the design thoroughly in simulation before programming; no in-circuit reconfiguration is possible. This page synthesizes verified distributor data, drop-in family alternatives, and practical design guidance not found in the manufacturer datasheet.

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A54SX32A-1TQG100 - 48K-Gate FPGA, TQFP-100 | Microchip
A54SX32A-1TQG100

A54SX32A-1TQG100 - 48K-Gate FPGA, TQFP-100 | Microchip

The Microchip Technology (Microsemi) A54SX32A-1TQG100 is an antifuse-based FPGA from the SX-A family offering 48,000 system gates (32,000 typical gates), 2880 logic modules, 81 user I/O, and a maximum toggle rate of 278 MHz, housed in a 100-pin TQFP (TQG100) package with 0.5 mm lead pitch. An FPGA (Field-Programmable Gate Array) is a semiconductor device that implements custom digital logic by programming an array of configurable logic blocks and interconnects. Within the programmable logic hierarchy, the device sits as FPGA -> programmable logic IC -> logic IC -> embedded IC. The SX-A family uses a 0.25 um antifuse technology, which is one-time programmable: once configured, the interconnect is permanently set, providing inherent resistance to readback attacks and high reliability without a configuration boot sequence. Key features include the -1 speed grade with up to 278 MHz system performance, 2.5V core operation for reduced power versus 3.3V-only devices, sea-of-modules architecture for efficient gate utilization, and 81 user-available I/O in the 100-pin TQFP. Because the antifuse fabric requires no external configuration memory, the part eliminates configuration PROMs from the bill of materials and starts instantly at power-up, which simplifies system design and improves security in applications where bitstream confidentiality matters. Technically, the SX-A architecture organizes 2880 logic modules (Register Cells and Combinatorial Cells) into a routing fabric characterized by segmented antifuse interconnect, delivering deterministic, low-jitter routing delays suitable for state machines, bus interfaces, and glue-logic consolidation. The CMOS 0.25 um process balances performance, density, and low static power consumption. Typical applications include industrial control and automation glue logic, communications line-card interface bridging, aerospace and defense secure logic (leveraging antifuse confidentiality), and cost-sensitive single-chip integration of multiple discrete logic devices in legacy or long-lifecycle systems. When designing with this device, plan the one-time-programmable workflow carefully: verify the design fully in simulation and reserve spare I/O for future PLD requirements, since antifuse parts cannot be reprogrammed in-circuit. This page synthesizes distributor pricing as of 2026-09-03, same-package drop-in speed-grade alternatives, and practical design notes not found in the manufacturer datasheet.

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A54SX32A-1TQG100I - SX-A FPGA 48K Gates TQFP-100 | Microchip
A54SX32A-1TQG100I

A54SX32A-1TQG100I - SX-A FPGA 48K Gates TQFP-100 | Microchip

The Microchip Technology A54SX32A-1TQG100I is an SX-A family antifuse FPGA providing 48K system gates (32,000 typical gates, 1800 logic modules), 81 user I/Os, and system performance up to 278 MHz, housed in a 100-pin TQFP (TQG100) package with industrial temperature range of -40C to +85C and a 2.5V core supply. An FPGA (Field-Programmable Gate Array) is a type of programmable logic IC that lets designers implement custom digital circuits after manufacturing, sitting above CPLDs and below full-custom ASICs in the programmable logic hierarchy. The SX-A family uses Actel-derived antifuse programming technology, which is one-time programmable (OTP): configuration bits are permanent, giving inherent resistance to configuration readback attacks and no need for external configuration memory at power-up. Key features of the A54SX32A-1TQG100I include a 0.25 um process technology, a sea-of-modules architecture for high gate utilization, 2.5V low-power operation, and the speed grade -1 (fastest commercial bin in the family at 278 MHz toggle capability). Because the configuration is stored in antifuses rather than SRAM, the device powers up instantly with no configuration time and offers lower static power than SRAM FPGAs. Technically, the SX-A architecture combines combinational logic modules (C-cells) and register modules (R-cells) in a sea-of-modules fabric, with dedicated clock resources and embedded boundary-scan test support. The -1 speed grade maximizes combinational and register performance for timing-critical paths. Typical applications include industrial control and automation, communications and networking line cards, aerospace and defense systems where antifuse security and radiation tolerance heritage matter, and glue-logic integration replacing multiple discrete devices in a low-cost single-chip solution. Design consideration: because the device is one-time programmable, iterate designs in silicon-costly steps; verify timing closure thoroughly in Libero/Microchip design tools before programming, and reserve the -1 speed grade budget for genuinely critical paths. This page synthesizes distributor availability, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, with pricing as of 2026-09-03.

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A54SX32A-1TQG100M - 48K Gate FPGA 81 I/O TQFP-100 | Microchip
A54SX32A-1TQG100M

A54SX32A-1TQG100M - 48K Gate FPGA 81 I/O TQFP-100 | Microchip

The Microchip Technology (Microsemi) A54SX32A-1TQG100M is an SX-A family antifuse field programmable gate array (FPGA) with 48,000 system gates, 81 user I/O, and a -1 speed grade, housed in a 100-pin TQFP (TQG100) surface-mount package. It operates from a 2.5V core supply (2.25V to 5.25V per distribution data) and is qualified across the -55C to +125C military temperature range, indicated by the M grade suffix. An FPGA (Field Programmable Gate Array) is a semiconductor device containing a matrix of configurable logic blocks and programmable interconnects that the designer wires together after manufacturing, sitting within the programmable logic hierarchy above CPLDs and below full-custom ASICs. The SX-A family uses Microsemi antifuse technology, in which programmed connections are permanent one-time links. This yields instant-on operation with no configuration PROM or boot time, high resistance to radiation-induced configuration upsets, and low long-term cost for volume production. Key features of the A54SX32A-1TQG100M include its sea-of-modules architecture built on 0.25 um CMOS processing, a maximum toggle rate of approximately 278 MHz, and 1,800 usable logic cells. The -1 speed grade denotes the base speed bin of the SX-A family; -2 and faster grades trade higher power for additional performance. The 100-pin TQFP package provides a 0.5 mm lead pitch in a 14 mm x 14 mm body suitable for cost-sensitive two-layer and four-layer boards. Because antifuse programming is one-time, designs are finalized by simulation and signed off before programming; this makes the family attractive for fixed-function replacements of gate arrays, glue logic consolidation, and defense/aerospace programs where the wide -55C to +125C temperature range and non-volatile, no-boot behavior are decisive. Typical applications include industrial control, avionics interfaces, communications line cards, and military equipment. Design consideration: the part is programmed once, so verify timing with Microchip Libero/Designer software at the -1 speed grade and reserve I/O margin, since no rework is possible after programming. This page synthesizes verified distributor data, same-package drop-in alternatives, pricing tiers, and practical design notes not found in the manufacturer datasheet.

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A54SX32A-1TQG144 - 48K Gate SX-A FPGA 278MHz TQFP-144 | Microchip
A54SX32A-1TQG144

A54SX32A-1TQG144 - 48K Gate SX-A FPGA 278MHz TQFP-144 | Microchip

The Microchip Technology (Microsemi/Actel) A54SX32A-1TQG144 is a 48,000-system-gate antifuse FPGA from the SX-A family delivering up to 278 MHz system performance, 2880 logic cells, and 113 user I/Os in a 144-pin TQFP (TQG144) package operating from a 2.5V core supply. An FPGA (Field-Programmable Gate Array) is a semiconductor device containing programmable logic blocks and interconnects that designers configure after manufacturing. Within the programmable logic hierarchy, the A54SX32A sits in the mid-density class of one-time-programmable (OTP) antifuse FPGAs: FPGA -> programmable logic device (PLD) -> digital logic IC -> semiconductor. Unlike SRAM FPGAs, Actel antifuse devices retain their configuration permanently and require no external boot configuration ROM. Key features include a 0.25um CMOS antifuse process, clock speeds up to 278 MHz, low static power consumption typical of the SX-A family, and a low-cost single-chip integration path. The -1 speed grade is the fastest commercial grade in the SX32A lineup, and the 20x20 mm TQFP-144 body with 1.4 mm height suits surface-mount assembly without fine-pitch BGAs. Architecturally, the SX-A family uses a sea-of-modules fabric with combinational and sequential logic modules (C-cells and R-cells) connected by a segmented routing fabric programmed through antifuse links. This structure yields deterministic, low-jitter routing with interconnect delays comparable to gate arrays, making the family a low-risk ASIC or complex-PAL replacement. Typical applications include industrial control glue logic, communication bridging, state-machine integration, bus interfaces, and cost-sensitive system consolidation where a one-time-programmed configuration is a security or reliability benefit. Design consideration: antifuse devices are one-time programmable - prototype on compatible devices or use the Libero/Microsemi design flow with thorough simulation before committing, since design changes require a new device. Verify 2.5V supply rail sequencing and decouple each VCC pin. This page synthesizes distributor pricing, drop-in alternatives, pinout availability, and practical design notes not found in the manufacturer datasheet.

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A54SX32A-1TQG144I - 32K Gate FPGA 113 I/O TQFP-144 | Microchip
A54SX32A-1TQG144I

A54SX32A-1TQG144I - 32K Gate FPGA 113 I/O TQFP-144 | Microchip

The Microchip Technology A54SX32A-1TQG144I is a 32,000-gate (48,000 system gate) antifuse SX-A family FPGA with 1800 logic cells, up to 278 MHz system performance, and 113 user I/O, housed in a 144-pin TQFP surface-mount package rated for -40C to +85C operation. A field-programmable gate array (FPGA) is a semiconductor device containing a matrix of configurable logic blocks (CLBs) and programmable interconnects that designers configure in the field via a hardware description language such as Verilog or VHDL. FPGAs sit in the programmable logic hierarchy alongside CPLDs and ASICs, offering ASIC-like integration without the non-recurring engineering cost and long lead times of a custom mask-set device. Key features of this SX-A device include its 0.25 um CMOS antifuse process, which delivers radiation-tolerant-like nonvolatility and instant-on power-up with no external configuration PROM, and a supply range of 2.25V to 5.25V per distributor data, easing integration into legacy 3.3V and 5V systems. The 1 speed grade supports internal toggle rates up to 278 MHz per parametric listings. Architecturally, the SX-A family uses a sea-of-modules structure with fine-grained logic modules and fast, dedicated routing resources. The antifuse interconnect is programmed once at the factory or in-house using a programmer; it adds nanosecond-level routing delays and inherently resists bit-flip configuration corruption, a security and reliability advantage over SRAM-based FPGAs. Typical applications include industrial control and automation glue logic, communications bridging, aerospace and defense subsystems requiring instant-on and configuration security, and legacy design sustainment where Microsemi (now Microchip) Actel antifuse FPGAs were originally designed in. Design consideration: antifuse FPGAs are one-time programmable - exhaustively verify the design in simulation before programming production units, and reserve engineering spare capacity in the 1800-cell array for late fixes. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet, with prices as of 2026-09-03.

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A54SX32A-1TQG144M - 48K-Gate SX-A FPGA, 113 I/O | Microchip
A54SX32A-1TQG144M

A54SX32A-1TQG144M - 48K-Gate SX-A FPGA, 113 I/O | Microchip

The Microchip Technology (Microsemi/Actel) A54SX32A-1TQG144M is an SX-A family field programmable gate array (FPGA) with 32K gates (48K system gates), 1800 logic cells, up to 278 MHz toggle frequency, and 113 user I/Os, housed in a 144-pin TQFP package. It operates from a single 2.5V core supply and is fabricated in a 0.25 um process, with lead-free/RoHS-compliant construction and tray packaging. An FPGA (field programmable gate array) is a semiconductor device containing a fabric of configurable logic blocks and programmable interconnects that the designer configures after manufacturing. Within the programmable logic hierarchy, the SX-A sits among antifuse-based, one-time-programmable FPGAs, positioned under the broader categories of programmable logic ICs and embedded processing hardware. Unlike SRAM FPGAs, antifuse devices such as the SX-A retain their configuration permanently and require no external boot ROM. Key features include the sea-of-modules architecture that reduces design time and cost, one-time-programmable antifuse technology that eliminates configuration storage and improves design security, and low power consumption relative to SRAM-based alternatives. The -1 speed grade supports system frequencies suitable for glue logic consolidation, bus bridging, and state-machine implementations, while the 113 available I/Os handle wide parallel interfaces. Technically, the SX-A fabric combines combinatorial modules with register-rich sequential modules, enabling efficient synthesis of both datapath and control logic. The 0.25 um process balances speed and cost, and the 2.5V core keeps dynamic power low. Designers typically access the device via Microchip (Actel) Designer software with synthesis from standard HDL flows. Typical applications include industrial control, communications bridging, aerospace and defense boards that value the security of antifuse configuration, and obsolete-system lifecycle extensions where the SX32/SX-A footprint must be maintained. A key design consideration: antifuse FPGAs are one-time programmable, so verify pinout, I/O standards, and timing constraints thoroughly before programming. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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A54SX32A-2BGG329 - 48K Gate FPGA, 313MHz | Microchip Technology
A54SX32A-2BGG329

A54SX32A-2BGG329 - 48K Gate FPGA, 313MHz | Microchip Technology

The Microchip Technology A54SX32A-2BGG329 (formerly Actel/Microsemi) is a 48,000-system-gate antifuse FPGA from the SX-A family, delivering 2,880 logic cells, up to 249 user I/Os, and a maximum toggle rate of 313 MHz, housed in a 329-ball BGA (BGG329) package. The -2 speed grade device operates from a single 2.5V core supply and is fabricated on a 0.25 um CMOS process. An FPGA (Field-Programmable Gate Array) is a semiconductor device containing a sea of programmable logic blocks and interconnects that designers configure after manufacturing. The SX-A family belongs to the antifuse FPGA category: unlike SRAM-based FPGAs, its interconnect elements are permanently programmed at the factory or in the lab, so the configuration is retained at power-up without any external boot PROM, improving security and reducing BOM count in the power-management hierarchy of a system design. Key features of the A54SX32A-2BGG329 include 48K system gates (32K raw gates, 2,880 logic cells) for integrating glue logic, bus interfaces, and state machines into a single chip; 249 user I/Os in the 329-ball BGA, supporting high-pin-count board layouts; and the -2 speed grade supporting 313 MHz internal performance. The antifuse architecture contributes inherently low power, high immunity to configuration readback, and essentially non-volatile, single-chip integration, which Microchip positions as lowering the performance premium versus competing architectures. Technically, the device uses a sea-of-modules architecture with repeated logic modules (C-cells and R-cells) and a routing fabric programmed by antifuse elements. Because the bitstream is physically burned in, there is no configuration time at power-up and no external configuration device to attack or corrupt, a property valued in defense, avionics, and industrial control where design protection matters. Typical applications include industrial automation and control, communications and networking line cards, test and measurement instrumentation, aerospace and defense subsystems, and bridging/glue logic for processors and ASICs. The large I/O count and deterministic power-up suit designs requiring many interface signals to be live immediately at reset. A key design consideration: antifuse FPGAs are one-time programmable. Unlike SRAM FPGAs, you cannot reconfigure the same device; design iteration requires new parts, so verification in simulation and timing closure with the Libero/Designer flow should be complete before programming production units. This page synthesizes distributor pricing availability, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing information gain over standard catalog listings.

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A54SX32A-2BGG329I - 48K Gate SX-A FPGA 329-BGA | Microchip
A54SX32A-2BGG329I

A54SX32A-2BGG329I - 48K Gate SX-A FPGA 329-BGA | Microchip

The Microchip Technology (formerly Microsemi/Actel) A54SX32A-2BGG329I is a 48,000-system-gate SX-A family antifuse FPGA with 1,800 logic cells, up to 249 user I/O, and a -2 speed grade, housed in a 329-ball BGA (BGG329) package rated for the industrial temperature range. It operates from a single 2.5V core supply and is fabricated on a 0.25 um CMOS process with internal performance up to approximately 238 MHz. An antifuse FPGA is a field-programmable gate array whose interconnect elements are permanently programmed at power-up by an on-chip circuit that blows microscopic antifuse links. Unlike SRAM-based FPGAs from Xilinx or Intel (Altera), an antifuse device is non-volatile and needs no configuration PROM, and its programmed connections are resistant to radiation-induced configuration upsets. Within the programmable logic hierarchy, the A54SX32A sits in the mid-density class of one-time-programmable FPGAs used where configuration data security, instant-on boot, and low static power matter more than reprogrammability. Key features include 48K system gates with 1,800 register cells, 249 available user I/O in the 329-ball package, single 2.5V operation, and the SX-A family's inherently low static power consumption because no configuration bitstream SRAM is present. The BGA ball-grid package provides good signal integrity and thermal performance for high-I/O glue logic, bus bridging, and state machine integration. The architecture is built around Actel's proven SX module: combination C-cells and register R-cells arranged in clusters, with segmented antifuse routing that delivers predictable, ASIC-like timing. The -2 speed grade represents the faster of the standard speed bins, supporting system clocks in the 200 MHz-class range per the SX-A family data. Typical applications include aerospace and defense designs that value configuration security and SEU robustness, industrial control and bus-interface logic, telecom line-card glue logic, and single-chip integration of multiple discrete logic devices (SSI/MSI replacement) to cut board cost. Design consideration: antifuse devices are one-time programmable - verify your design thoroughly in simulation before programming, and use Microchip's Libero/Designer software flow with the correct speed grade and temperature suffix. This page synthesizes distributor availability, same-family drop-in part variants, and practical design notes not consolidated in the manufacturer datasheet, with pricing referenced as of 2026-09-03.

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A54SX32A-2FGG256 - 48K-Gate FPGA 256-FBGA | Microchip
A54SX32A-2FGG256

A54SX32A-2FGG256 - 48K-Gate FPGA 256-FBGA | Microchip

The Microchip Technology (Microsemi) A54SX32A-2FGG256 is a 48,000-system-gate antifuse FPGA from the SX-A family, offering up to 203 user I/Os, a -2 speed grade with toggle rates up to approximately 238 MHz, and a 256-ball fine-pitch BGA (FBGA, 17x17 mm) package. It operates from a 2.25V to 5.25V mixed supply environment per distributor data and a commercial temperature range of 0C to +70C. An antifuse FPGA is a type of field-programmable gate array whose interconnects are permanently programmed at power-up of the configuration step rather than stored in SRAM. Unlike SRAM-based FPGAs, antifuse devices are non-volatile, require no external configuration ROM, and are inherently resistant to configuration upset, making them a member of the broader programmable logic and power/cost-sensitive ASIC- replacement hierarchy. The SX-A family targets designers who need one-time-programmable logic integration at ASIC-like unit cost. Key features of the A54SX32A-2FGG256 include 48K system gates (approximately 1,800 logic cells on a 0.25 um antifuse process per FindIC data), 203 available user I/Os in the 256-FBGA package, a -2 speed grade for mid-to-high-speed glueless integration, and RoHS3-compliant surface-mount assembly. Distributed routing and dedicated clock resources support synchronous designs without external glue logic. Technically, the SX-A architecture uses a sea-of-modules fabric with combinational and sequential modules connected by a program-once antifuse interconnect matrix. Because configuration is hard-wired, there is no configuration readback path, which supports designs where bitstream security matters. The 0.25 um process yields predictable timing, and the -2 grade represents the standard commercial speed bin for this family. Typical applications include industrial control and automation glue logic, telecommunications line-card interface bridging, defense and avionics legacy-design sustainment, and ASIC prototype or low-volume production integration where a single-chip solution replaces multiple discrete logic devices. Design consideration: as a one-time-programmable device, functional changes require new silicon, so lock down the design and verify timing with Microchip Libero/Designer software before committing to programming; the commercial 0C to +70C rating also excludes most automotive and extended-temperature industrial deployments. This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving buyers and engineers a single verified reference point.

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A54SX32A-2FGG256I - 48K Gate FPGA, 256-BGA | Microchip Technology
A54SX32A-2FGG256I

A54SX32A-2FGG256I - 48K Gate FPGA, 256-BGA | Microchip Technology

The Microchip Technology (Microsemi) A54SX32A-2FGG256I is a 48,000-system-gate antifuse FPGA from the SX-A family, delivering 203 user I/Os, a maximum toggle-rate performance of up to 313 MHz, and a 2.5 V core supply in a 256-ball Fine-Pitch Ball Grid Array (FBGA/FGG256) package with industrial temperature rating (-40C to +85C) and speed grade 2. An FPGA (Field-Programmable Gate Array) is a semiconductor device containing a fabric of configurable logic cells and routing resources that designers program to implement custom digital circuits. Within the programmable-logic hierarchy, the SX-A family sits among one-time-programmable (OTP), antifuse-based FPGAs, sitting above simple SPLD/CPLD devices and providing gate-array-class density with the flexibility of field programming. Key differentiating features of the A54SX32A-2FGG256I include its antifuse interconnect architecture, which is non-volatile and inherently immune to configuration-bit upsets, low static power typical of 2.5 V 0.25 um CMOS process technology, and no external configuration PROM requirement - the device is live and configured at power-up. With 2880 logic cells (approximately 48,000 equivalent system gates), it integrates glue logic, bus interfaces, state machines, and control functions that previously required multiple TTL/PLD devices into a single low-cost chip. Technical depth: the SX-A architecture combines logic modules with dedicated routing channels, achieving predictable, low-skew timing. The 0.25 um CMOS antifuse process gives very low interconnect parasitic capacitance versus SRAM FPGAs of the era, supporting system performance up to 313 MHz toggle rates while minimizing dynamic power. The 256-ball FBGA provides 203 flexible user I/O with industry-standard 2.5 V/3.3 V-compatible I/O banks and surface-mount reflow assembly. Typical applications include industrial control and automation boards, telecommunications line cards, military/aerospace upgrade programs where OTP configuration security matters, embedded glue-logic consolidation, and legacy system life-extension designs that must remain sourced for years. Design consideration: because the device is one-time programmable, verify timing closure and pin assignment in Libero SoC before programming - there is no rework path after antifuse programming, so budget a small pilot run of programmed units for validation. This page synthesizes distributor pricing and stock data, same-footprint drop-in speed-grade and temperature-grade alternatives, and practical design notes not found in the manufacturer datasheet, with pricing as of 2026-09-03.

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A54SX32A-2FGG484 - 48K-Gate SX-A FPGA, 484-FBGA | Microchip
A54SX32A-2FGG484

A54SX32A-2FGG484 - 48K-Gate SX-A FPGA, 484-FBGA | Microchip

The Microchip (Microsemi/Actel) A54SX32A-2FGG484 is a 48,000-gate SX-A family antifuse field programmable gate array (FPGA) with 2880 logic cells, 249 user I/O pins, and a maximum toggle frequency of 313 MHz, housed in a 484-ball fine-pitch BGA (FGG484, 27x27 mm) package. An FPGA (Field-Programmable Gate Array) is a semiconductor device that implements custom digital logic through programmable interconnect and configurable logic blocks. Within the programmable logic hierarchy, the A54SX32A belongs to the one-time-programmable antifuse FPGA category, positioned under FPGAs > programmable logic ICs > digital logic semiconductors. The SX-A family uses a sea-of-modules architecture in which the chip floor is a dense grid of logic modules, minimizing area lost to routing and enabling high gate utilization at low cost. Key features of the A54SX32A-2FGG484 include 0.25 um CMOS antifuse technology, 2.5 V core operation with support for 2.5 V, 3.3 V, and 5 V compatible I/O standards across the SX-A family, speed grade -2 timing, and a 484-ball FBGA footprint shared across the SX32A/SX72A density range. The antifuse interconnect is non-volatile and inherently single-chip: no external configuration PROM or boot sequence is required, which reduces BOM cost, board area, and configuration-bitstream security exposure compared with SRAM FPGAs. Architecturally, the device combines two logic module types: C-cells (combinatorial logic modules) and R-cells (register cells), embedded in a segmented routing fabric. Because antifuse links are programmed once at the factory-level programming stage, the device exhibits low static power, deterministic interconnect capacitance, and immunity to configuration upsets, making it attractive in harsh environments. Typical applications include industrial control and automation logic, telecommunications line-card glue logic and protocol bridging, aerospace and defense data paths, and medical instrumentation where single-chip integration replaces multi-chip ASSP and discrete logic solutions. Design consideration: because the SX-A is one-time programmable, prototype on the larger A54SX72A same-footprint device first and lock the design before committing programming; also budget I/O bank voltage selection (2.5/3.3/5 V) at layout time. This page synthesizes distributor pricing (LCSC from $213.1034 as of 2026-09-03), same-footprint drop-in alternatives, and engineering design notes not found in the manufacturer datasheet.

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A54SX32A-2TQG100 - 48K-Gate SX-A FPGA 313MHz TQFP-100 | Microchip
A54SX32A-2TQG100

A54SX32A-2TQG100 - 48K-Gate SX-A FPGA 313MHz TQFP-100 | Microchip

The Microchip Technology A54SX32A-2TQG100 is a 48,000-system-gate antifuse FPGA from the SX-A family, built on 0.25 um CMOS technology, operating at up to 313 MHz from a 2.5V supply, and housed in a 100-pin TQFP (PQFP100, 1.4 mm height, 0.5 mm pitch) surface-mount package with 81 user I/Os. A Field Programmable Gate Array (FPGA) is a semiconductor device containing a matrix of configurable logic blocks (CLBs) and programmable interconnects that designers configure in the field, unlike fixed-function ASICs. Within the programmable logic hierarchy, the FPGA sits above CPLDs and SPLDs as the highest-density programmable logic device, serving as the system-level integration platform of modern digital design. The SX-A family uses a sea-of-modules architecture that simplifies design, reduces design cost and power consumption, and shortens time to market for performance-intensive applications. Microchip (formerly Actel/Microsemi) positions SX-A as a single-chip integration solution: multiple functions can be merged into one low-cost antifuse device. The antifuse interconnect also provides inherent security and low power advantages over SRAM-based FPGAs because the configuration is permanent and requires no configuration PROM at power-up. Technically, the A54SX32A provides 2,880 logic cells (CLBs) with 32,000 typical usable gates from the 48,000 equivalent system gate budget, and the -2 speed grade supports maximum toggle rates up to 313 MHz on the 0.25 um process. The 2.5V core keeps dynamic power low relative to 3.3V-era FPGAs, while CMOS fabrication ensures standard reliability characteristics. Typical applications include industrial control and automation, communications and networking glue logic, avionics and defense systems where configuration security matters, and consumer or computing platforms that need to consolidate discrete logic into one chip. Design consideration: the antifuse is one-time programmable, so complete functional simulation before programming is essential; there is no rework path after a design change. Plan I/O assignment in Libero/Microchip design tooling to match the TQFP-100 pinout early. This page synthesizes verified distributor pricing, drop-in same-package alternatives, and practical design notes not found together in the manufacturer datasheet.

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A54SX32A-2TQG100I - 32K Gate FPGA, 81 I/O, TQFP-100 | Microchip
A54SX32A-2TQG100I

A54SX32A-2TQG100I - 32K Gate FPGA, 81 I/O, TQFP-100 | Microchip

The Microchip Technology (Microsemi) A54SX32A-2TQG100I is a 32,000-gate SX-A family antifase-style FPGA with 1,800 logic cells (2,880 modules), 81 user I/O, a maximum toggle rate of 313 MHz, and 2.5V single-supply operation, housed in a 100-pin TQFP (TQG100) package rated for the industrial temperature range of -40C to +85C. A Field Programmable Gate Array (FPGA) is a semiconductor device containing a fabric of configurable logic blocks and programmable interconnects that the designer wires together after manufacturing. Within the programmable-logic hierarchy, the A54SX32A sits in the antifuse, one-time-programmable FPGA class: its connectivity is fixed permanently at programming time, which eliminates configuration PROMs, shortens power-up time, and improves design security compared with SRAM-based FPGAs. Key features of this device include 32K system gates of SX-A fabric built on a 0.25 um CMOS process, dedicated I/O clusters enabling the 81 user-facing pins, deterministic pin-to-pin delays supporting the -2 speed grade (313 MHz toggle in the SX-A family), and the low 2.25V-to-2.75V core supply requirement noted for the SX-A family. Because the programmed interconnect is non-volatile and inherently one-time programmed, the device resists readback attacks, making it attractive where intellectual-property protection matters. Architecturally, the SX-A family combines fast carry logic for arithmetic functions with flexible routing that lets designers integrate glue logic, bus interfaces, state machines, and small datapaths that previously required multiple TTL or PLD devices, reducing board area and BOM cost. Typical applications include industrial control and automation, medical equipment interfaces, communications and networking line cards, and legacy aerospace/defense logic consolidation, where single-chip integration of multiple functions at low cost is the design goal. A key design consideration is that this is a one-time-programmable device: reserve engineering-change margin in your floorplan, and verify timing at -2 speed grade with Microchip Libero/Designer software before committing to production. This page synthesizes distributor availability data, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet.

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A54SX32A-2TQG144I - 32K Gate SX-A FPGA, 144-TQFP | Microchip
A54SX32A-2TQG144I

A54SX32A-2TQG144I - 32K Gate SX-A FPGA, 144-TQFP | Microchip

The Microchip Technology (Microsemi) A54SX32A-2TQG144I is an SX-A family antifuse FPGA delivering 32K gates (48K system gates) with 1800 logic cells, 113 user I/Os, and a toggle rate up to 313 MHz, housed in a 144-pin TQFP surface-mount package rated for the industrial temperature range of -40C to +85C. A field-programmable gate array (FPGA) is a semiconductor device containing a sea of configurable logic modules and routing fabric that designers program after manufacturing to implement custom digital circuits. Within the programmable logic hierarchy, the FPGA sits above CPLDs and SPLDs, offering higher gate density and register-rich architectures. The SX-A family uses antifuse programmability, which is one-time programmable (OTP) and non-volatile: the configuration is physically permanent, immune to configuration memory upset, and requires no external configuration PROM at power-up. Key features of the A54SX32A-2TQG144I include a 0.25 um process technology, a single 2.5V core supply, and speed grade -2 performance with internal toggle rates up to 313 MHz. The 113 user I/Os support common logic-level interfaces, and the antifuse fabric provides low interconnect delay and low static power compared with SRAM-based FPGAs of similar density. Architecturally, SX-A devices use a sea-of-modules structure with combinable C-cells for combinatorial logic and R-cells for registers, connected through a segmented routing fabric. Because the antifuse connections are programmed once, signal paths exhibit low, deterministic delay, making the family well suited to performance-intensive glue logic, state machines, and bus-interface functions in cost-sensitive systems. Typical applications include industrial automation control, military and aerospace subsystems requiring configuration security, communications equipment, test instrumentation, and single-chip integration of multiple legacy ASSP or glue-logic functions to reduce board cost and component count. Designers should note that antifuse FPGAs are one-time programmable: design changes require a new device, so fix the RTL and complete timing verification before committing to programming. The industrial (-40C to +85C) I-suffix grade must be matched to the operating environment. This page synthesizes verified distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet, providing engineers and buyers a single decision-ready resource for the A54SX32A-2TQG144I.

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A54SX32A-2TQG176I - SX-A FPGA 32K Gates 176-TQFP | Microchip
A54SX32A-2TQG176I

A54SX32A-2TQG176I - SX-A FPGA 32K Gates 176-TQFP | Microchip

The Microchip (Microsemi) A54SX32A-2TQG176I is a 32K-gate SX-A family antifuse FPGA with 1,800 logic modules, 147 user I/O pins, and a maximum toggle frequency of 313 MHz, housed in a 176-pin TQFP package with industrial temperature rating (-40C to +85C). An FPGA (Field-Programmable Gate Array) is a semiconductor device containing configurable logic blocks and programmable interconnects that the designer wires together after manufacturing. The Actel/Microchip SX-A family belongs to the antifuse FPGA category: its interconnect is permanently set at programming time, giving lower cost, lower power, higher security, and inherent radiation tolerance compared to SRAM-based FPGAs, at the cost of non-reprogrammability. FPGAs sit in the broader hierarchy of programmable logic within digital integrated circuits. Key features include the sea-of-modules architecture built on a 0.25 um process, with two logic module types (R-cell registers and C-cell combinatorial cells) that virtually eliminate chip area lost to routing. The -2 speed grade supports up to 313 MHz operation, and the 2.5V core supply keeps static power low. Antifuse programming makes the configuration readback-proof, a decisive advantage in defense and industrial designs where bitstream security matters. The 147 user I/O support diverse board-level interfaces, and the industrial temperature range of the I suffix suits harsh environments. Design entry is done in Synopsys/Verilog/VHDL flows with the Microchip Libero or legacy Designer software. Typical applications include industrial control, avionics glue logic, communication bridging, and secure single-chip integration of multiple discrete logic functions to cut system cost. When designing, plan I/O assignments before routing: the antifuse device is one-time programmable, so design rule and timing closure checks must be complete before programming. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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A54SX32A-BGG329M - SX-A FPGA 32K Gates 329-BBGA | Microchip
A54SX32A-BGG329M

A54SX32A-BGG329M - SX-A FPGA 32K Gates 329-BBGA | Microchip

The Microchip Technology A54SX32A-BGG329M (originally Actel/Microsemi) is an SX-A family Field Programmable Gate Array (FPGA) with 32,000 system gates, 1,800 logic cells, and up to 249 user I/O, housed in a 329-ball BBGA package. Fabricated on a 0.25um/0.22um CMOS process and operating from a 2.5V supply (2.25V to 5.25V per sourcing data), the device supports clock rates up to 238 MHz and operates across the full military temperature range of -55C to +125C. An FPGA (Field Programmable Gate Array) is a semiconductor device containing a matrix of configurable logic blocks and programmable interconnects that the designer programs after manufacturing, sitting within the broader hierarchy of programmable logic alongside CPLDs and ASICs. The SX-A family uses a sea-of-modules architecture that simplifies design, reduces cost and power, and shortens time to market for performance-intensive applications. Key features of the A54SX32A include its antifuse-based, non-volatile programming technology, which removes the need for external configuration memory, offers inherent design security, and provides instant-on operation at power-up. The 249 available I/Os and high routing capacity make it suitable for glue logic integration, bus interfacing, and state-machine implementations that consolidate multiple discrete functions into a single low-cost chip. Technically, the SX-A architecture combines combinational and sequential modules in a sea-of-modules fabric, delivering deterministic, ASIC-like timing. The 0.25um CMOS process keeps static power low while the module structure supports the family's 238 MHz maximum toggle performance. The 329-ball BBGA (ball grid array) package provides a robust surface-mount footprint with a 1.27 mm ball pitch per related sourcing data. Typical applications include industrial automation controllers, military and avionics systems (enabled by the -55C to +125C operating range), communications equipment, and test instrumentation where legacy programmable logic must be maintained without redesign. Designers should note that antifuse FPGAs are one-time programmable: verification of the design before programming is essential, and design iterations require new devices. Power distribution and decoupling across the 329-ball footprint must follow the manufacturer datasheet guidance. This page synthesizes distributor inventory data, cross-reference information, and drop-in alternative analysis not found in the manufacturer datasheet. Pricing references are as of 2026-09-03.

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A54SX32A-FBGG329 - 48K Gate FPGA 329-BGA | Microchip
A54SX32A-FBGG329

A54SX32A-FBGG329 - 48K Gate FPGA 329-BGA | Microchip

The Microchip Technology (formerly Microsemi/Microsemi Corporation) A54SX32A-FBGG329 is an SX-A family antifuse FPGA with 48,000 equivalent system gates (32,000 typical gates available for user logic), 2,880 logic cells, up to 249 user I/O, and a maximum clock frequency of 172 MHz, housed in a 329-ball FBGA (S-PBGA-B329) package operating at a 2.5 V core supply and fabricated in 0.25 um CMOS technology. An antifuse FPGA is a type of field-programmable gate array in which the programmable interconnect is formed by one-time antifuse elements that are permanently programmed at the factory or in the field. Unlike SRAM-based FPGAs, antifuse devices retain their configuration through power cycles without an external configuration flash, resist configuration readback attacks, and add essentially zero interconnect delay penalty at rest, making them a subclass of programmable logic within the broader power-management and system-logic semiconductor hierarchy. Key features of the A54SX32A-FBGG329 include the sea-of-modules architecture of the SX-A family, which simplifies design migration and enables single-chip integration of multiple functions at low cost. The device combines high performance (system speeds up to 172 MHz), low static power consumption inherent to antifuse technology, and configuration security because there is no bitstream to intercept at power-up. The fine-pitch 329-ball BGA package supports high I/O density for bus-intensive designs. Technically, the A54SX32A uses a 0.25 um CMOS process with a 2.5 V core and supports both combinational and registered logic implemented in C-cells (logic modules) and R-cells (register modules). The SX-A family is supported by Microchip's Libero SoC design suite, and programming is performed once, after which the device behaves as a fixed ASIC-like logic part with immediate power-on operation. Typical applications include industrial control and automation, communications and networking equipment, military and aerospace systems (particularly the M-grade temperature variants), and glue-logic consolidation where an SRAM FPGA's configuration overhead or security exposure is undesirable. Design consideration: because the device is one-time programmable, verify your design thoroughly in simulation and, ideally, on an in-system reprogrammable development path before committing; pin-compatible speed-grade and temperature-grade variants ease late design changes. This page synthesizes verified distributor data, drop-in packaging/temperature variant alternatives, pricing tiers, and practical design notes not found in the manufacturer datasheet.

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A54SX32A-FFGG256 - 48K-Gate Antifuse FPGA, 256-BGA | Microchip
A54SX32A-FFGG256

A54SX32A-FFGG256 - 48K-Gate Antifuse FPGA, 256-BGA | Microchip

The Microchip Technology A54SX32A-FFGG256 is an SX-A family antifuse FPGA with 48,000 system gates (32,000 typical usable gates), 2880 configurable logic blocks, and 203 user I/Os, housed in a 256-ball fine-pitch BGA (256-FPBGA, 17x17 mm) package. It operates from a 2.25V to 5.25V supply over a 0C to +70C commercial temperature range. An antifuse FPGA is a type of field-programmable gate array in which the interconnect configuration is permanently set at programming time by blowing microscopic antifuse links. Unlike SRAM-based FPGAs, antifuse devices are non-volatile with no configuration PROM, offer inherently higher design security because the bitstream cannot be read back, and consume lower static power. Within the programmable logic hierarchy, the A54SX32A belongs to the FPGA -> field-programmable logic -> programmable semiconductor category. Key features include single-chip integration of multiple functions at low cost, support for 2.5V, 3.3V, and 5V I/O standards on the same device, and fabrication on 0.22 um / 0.25 um CMOS antifuse technology. The 203 I/O count enables glue-logic consolidation, bus bridging, and interface conversion in one package. The 256-ball FBGA footprint is shared across the A54SX32A speed and temperature variants, simplifying second-sourcing within the family. Architecturally, the SX-A family uses a sea-of-modules fabric of combinational and sequential modules routed through a metal-metal antifuse interconnect matrix. Because configuration is hard-wired, the device exhibits no configuration-time delay at power-up, making it suitable for applications requiring immediate availability of logic at reset, and it is immune to configuration-upset effects that affect SRAM FPGAs in radiation-prone environments. Typical applications include industrial control and automation glue logic, legacy system refresh where 5V-tolerant I/O is required, telecommunications line-card interface logic, aerospace and defense boards needing secure non-volatile configuration, and bridging between processors and ASICs or memory subsystems. A key design consideration: antifuse devices are one-time programmable. Fix a logic change requires a new device, so complete functional simulation and prototype validation before committing volume production. Also note the commercial 0C to +70C rating; industrial-temperature applications should use the I-suffix variants such as A54SX32A-FGG256I. This page synthesizes distributor pricing, drop-in family alternatives in the same 256-BGA footprint, and practical design notes not found in the manufacturer datasheet.

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A54SX32A-FFGG484 - 32K Gate SX-A FPGA 484-FBGA | Microchip
A54SX32A-FFGG484

A54SX32A-FFGG484 - 32K Gate SX-A FPGA 484-FBGA | Microchip

The Microsemi (Microchip Technology) A54SX32A-FFGG484 is a 32K-gate antifuse Field Programmable Gate Array (FPGA) from the SX-A family, offering 249 user I/O pins, 2880 logic array blocks (LABs), 1800 logic cells, and up to 172 MHz system performance in a 484-ball Fine-Pitch Ball Grid Array (FBGA/FFGG484) package. An FPGA is a programmable semiconductor device that implements digital logic through configurable function modules and interconnect. The SX-A family sits within the broader hierarchy of programmable logic: FPGA -> programmable logic device -> digital integrated circuit. Unlike SRAM-based FPGAs, the SX-A uses antifuse (Actel-style) technology, meaning its configuration is permanently set at programming time, providing inherent resistance to configuration readback and better security for military and industrial designs. Key features of the A54SX32A include approximately 48,000 equivalent gates (32,000 typical available for user design), 0.25 um CMOS process technology, and a 2.5V core with supply voltage operation spanning 2.25V to 5.25V per distributor data. The fine-pitch BGA footprint (27 x 27 mm) provides high interconnect density for glue logic consolidation, bus bridging, and embedded control. Its non-volatile antifuse architecture requires no boot PROM, eliminating configuration time at power-up. The SX-A architecture combines C-cell (combinational) and R-cell (sequential) logic modules with fast dedicated routing, enabling predictable, ASIC-like timing. System-wide cost savings come from integrating multiple SSI/MSI functions, PALs, and GALs into a single low-cost chip. Typical applications include industrial automation controllers, telecommunications line cards, military/aerospace subsystems (where antifuse radiation tolerance and security are valued), and legacy system sustainment where the design was originally captured in Actel Designer or Libero flow. Design consideration: the FFGG484 speed grade and 0-to-70C commercial temperature range mean industrial designs should consider the -I industrial variant. Because antifuse devices are one-time programmable, reserve spare capacity (roughly 20-30% of cells) and verify the design thoroughly in simulation before programming. This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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A54SX32A-FGG144 - 48K Gate SX-A FPGA, 144-FBGA | Microchip
A54SX32A-FGG144

A54SX32A-FGG144 - 48K Gate SX-A FPGA, 144-FBGA | Microchip

The Microsemi (Microchip) A54SX32A-FGG144 is a 32K-system-gate (48K gate) antifuse FPGA from the SX-A family, delivering 1800 logic cells, 2880 LABs, 111 user I/Os, and 238 MHz system performance in a 144-ball fine-pitch BGA (FBGA, 13 x 13 mm) package. It operates from a 2.5 V core with a supply range of 2.25 V to 5.25 V (per distributor listings) over a commercial temperature range of 0 C to +70 C. An antifuse FPGA is a type of field-programmable gate array in which programmable connections are formed permanently at programming time using an antifuse element, rather than SRAM configuration cells. In the programmable-logic hierarchy (FPGA -> field-programmable gate array -> programmable logic device -> digital IC), antifuse devices occupy the non-volatile, single-event-immune end of the spectrum: the configuration is stored physically in the silicon, so no external configuration flash is required at power-up. Key features include 0.25 um CMOS antifuse technology, deterministic 1.2 ns-class flip-flop timing cited by distributors, a 238 MHz toggle/system frequency rating, and low static power typical of 2.5 V antifuse architecture. Because the bitstream is physically burned rather than loaded from flash, the device offers inherent design security against readback - a major reason SX-A parts remain popular in defense, avionics, and industrial designs. The SX-A architecture combines fast, dedicated carry chains with the Actel routing fabric, allowing high-speed counters, state machines, and glue-logic integration in a low-cost single-chip solution. According to Microchip, SX-A devices generate system-wide savings by integrating multiple functions into one device while providing a combination of performance, security, and low power. Typical applications include legacy military/aerospace system sustainment, industrial control glue logic, communication bridging, and secure single-chip state machines where SRAM-FPGA configuration vulnerabilities are unacceptable. Design consideration: antifuse devices are one-time programmable - fully verify the design in simulation and, ideally, on a device from the same speed grade before programming production units. This page consolidates distributor pricing signals, drop-in alternative analysis, and practical design notes not found in the manufacturer datasheet.

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A54SX32A-FGG256A - 48K Gate SX-A FPGA 256-BGA | Microchip
A54SX32A-FGG256A

A54SX32A-FGG256A - 48K Gate SX-A FPGA 256-BGA | Microchip

The Microchip (Microsemi/Actel) A54SX32A-FGG256A is an SX-A family antifuse FPGA providing 48,000 system gates (32,000 typical gates, 2,880 register cells) with 203 user I/Os in a 256-ball Fine-Pitch Ball Grid Array (FBGA) package. The device operates from a 2.25 V to 2.75 V core supply and over a -40C to +125C ambient temperature range. A field-programmable gate array (FPGA) is an integrated circuit that implements user-defined digital logic through a configurable fabric of logic blocks and programmable interconnect. The SX-A family uses Actel's antifuse programming technology, in which one-time programmable interconnect elements are permanently set at programming time, in a so-called sea-of-modules architecture that tiles the die with combinatorial cells (C-cells) and register cells (R-cells) with virtually no chip area lost to routing. Key features of the A54SX32A include a sea-of-modules architecture delivering high gate utilization, antifuse one-time-programmable interconnect that is inherently non-volatile and resistant to configuration readback (a security benefit versus SRAM FPGAs), low static power consumption, and a fine-pitch 256-ball BGA that saves board area. The device integrates multiple glue-logic functions into a single low-cost chip, reducing BOM cost and board space compared with multi-chip TTL/CPLD solutions. Architecturally, the SX-A fabric provides high-speed combinatorial logic through C-cells and dense sequential logic through R-cells, with segment-based routing that supports system clock rates up to several hundred megahertz depending on speed grade. The 'A' speed grade is the standard-timing member of the A54SX32A family; -1 and -2 speed grades offer faster combinatorial delays for higher clock frequencies. Typical applications include industrial control and automation, telecommunications and networking line cards, aerospace and defense systems where one-time programmability and configuration security matter, medical instrumentation, and legacy system sustainment where the A54SX32A replaces multiple ASIC/SSI/MSI devices. Design consideration: because antifuse devices are one-time programmable, verify the design thoroughly in simulation before programming production units, and plan I/O assignments early since the 256-ball BGA footprint is fixed. This page synthesizes distributor pricing, drop-in family alternatives, design notes, and application guidance not found in the manufacturer datasheet, with data verified as of 2026-09-03.

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