FPGA & CPLD
Products (6358)
A54SX32-BG329 - 48K Gate FPGA 329-BGA | Microsemi
The Microsemi (Microchip) A54SX32-BG329 is a 48,000-system-gate antifuse FPGA from the SX family, offering 2,880 logic cells, 249 user I/O, and system speeds up to 240 MHz, housed in a 329-ball plastic BGA (31x31 mm, 1.27 mm pitch) surface-mount package. It operates from dual 3.3V and 5.0V supply rails (3.0V-3.6V and 4.75V-5.25V). An FPGA (Field-Programmable Gate Array) is a semiconductor device containing a matrix of configurable logic blocks that designers interconnect using a hardware description language such as Verilog or VHDL. FPGAs sit within the broader hierarchy of programmable logic devices, above CPLDs in density and below ASICs in per-unit cost efficiency, and the SX family uses an antifuse programming technology that is one-time programmable but inherently more secure and radiation-tolerant than SRAM-based alternatives. Key features of the A54SX32-BG329 include the sea-of-modules architecture, which delivers ASIC-like routing efficiency and deterministic timing, a 0.35 um CMOS process, dual-voltage operation that lets 5V-tolerant I/O interface with legacy 5V systems while core logic runs at 3.3V, and the high-density 329-BGA package providing up to 249 simultaneous user I/O for wide bus interfaces. Technically, the device organizes its 48,000 system gates into 2,880 configurable logic modules, with Register Transfer Level timing models in Libero IDE supporting synthesis and timing-driven place-and-route. Antifuse interconnects add virtually no parasitic delay compared with pass-transistor SRAM routing, which is why SX devices reach 240 MHz counter frequencies and suit performance-critical glueless logic integration. Typical applications include industrial control and automation, communications and networking equipment, test and measurement instrumentation, and military/aerospace system upgrades where the secure, non-volatile antifuse fabric is valued. The dual 5V/3.3V capability makes it particularly convenient for retrofit designs on older 5V boards. Design consideration: the antifuse fabric is one-time programmable, so verify the design fully in simulation before programming production devices; also budget for the 329-BGA footprint and plan power sequencing for the dual rails. This page synthesizes distributor pricing, stock data, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
A54SX32-BG329I - 48K Gate SX FPGA 329-BGA | Microchip
The Microchip Technology (Microsemi) A54SX32-BG329I is an Actel SX-family antifuse FPGA with 48K system gates (1800 logic cells), 249 user I/O, and system performance up to approximately 240 MHz, housed in a 329-ball plastic BGA (329-BBGA) package with 1.27 mm ball pitch and industrial temperature rating (I suffix). An antifuse FPGA is a type of field programmable gate array whose interconnect is permanently programmed at power-up programming time: unlike SRAM-based FPGAs from Xilinx or Intel (Altera), the SX family stores its configuration in one-time-programmable antifuse elements, so the device is non-volatile, requires no external configuration ROM, and is inherently resistant to configuration upset - a key reason antifuse FPGAs remain popular in military, aerospace, and industrial systems. Within the power management hierarchy of system logic devices, the SX sits in the one-time-programmable FPGA class alongside Microchip's newer ProASIC and RTAX families. Key features include the sea-of-modules architecture delivering high-speed, low-jitter interconnect; dual voltage support of 3.3V core with 5V-tolerant I/O capability (3.3V/5V per FindIC data); 0.35 um CMOS process technology; and 2880 combinatorial logic blocks (CLBs) equivalent cells. The 249 user I/O in the 329-ball package gives high pin utilization for wide bus interfaces. Technical depth: the SX sea-of-modules architecture shortens routing delays versus channel-based architectures, enabling consistent propagation performance. Because programming is one-time, designers validate the bitstream once and gain the supply-chain and security benefits of a fixed-function device without configuration-boot time. Typical applications include aerospace and defense control logic, industrial automation controllers, communication bridge logic, and glueless interface integration in legacy systems where SRAM FPGA volatility is undesirable. Design consideration: antifuse devices cannot be reprogrammed - a design change requires a new physical part, so thorough simulation and a proven programming flow (Libero/Designer software) are essential before committing. This page synthesizes distributor pricing (Octopart, Mouser, Heisener), same-family drop-in package alternatives, and practical design notes not consolidated in the manufacturer datasheet.
A54SX32-BG329M - 32K Gate FPGA 240MHz 329-BGA | Microsemi
The Microsemi (Actel, now Microchip Technology) A54SX32-BG329M is an antifuse-based FPGA from the SX family delivering 32,000 system gates (1,800 logic cells) with a maximum toggle frequency of 240 MHz, housed in a 329-ball BGA (329-BBGA) package with 249 user I/O. An FPGA (Field-Programmable Gate Array) is a semiconductor device containing configurable logic blocks (CLBs) and programmable interconnects that the designer wires together after manufacturing. Within the programmable logic hierarchy, the SX family sits among high-performance, one-time-programmable (OTP) antifuse FPGAs, which contrasts with SRAM-based FPGAs: configuration is permanent, immune to configuration-readback, and requires no external boot configuration device. Key features include a sea-of-modules architecture enabling high logic utilization and predictable timing, dual-rail operation at 3.3V or 5V (3.0V-3.6V and 4.75V-5.25V supply ranges), 2,880 configurable logic modules, and 0.35 um CMOS process technology. The -M speed grade indicates standard performance; -1 and -2 grades offer faster timing. Antifuse programmability delivers very low static power and instant-on operation. Architecturally, each logic module drives fast local and long-line routing, allowing critical paths to run at frequencies up to 240 MHz, and typical combinational delays in the sub-nanosecond range (datasheet cites a 900 ps representative delay for the SX family). Security against design theft is inherent because the programmed antifuse pattern cannot be read out. Typical applications include industrial control, aerospace and defense logic replacement, telecommunication line cards, and ASIC prototype or glue-logic consolidation where non-volatile, instant-on programmable logic is required. Design consideration: as a one-time-programmable device, verify the design thoroughly in simulation and, if possible, prototype on a larger SX-A family device before programming production units. Power-up sequencing of the 3.3V and 5V rails should follow the datasheet guidelines. This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet alone.
A54SX32-BGG329 - 32K Gate SX FPGA, 240MHz, 329-BGA | Microchip
The Microchip Technology A54SX32-BGG329 is a 32,000-system-gate antifuse FPGA from the Actel SX family, offering 2880 logic cells, 249 user I/O, and up to 240 MHz internal performance, housed in a 329-ball BGA (329-BBGA) package. It operates from 3.3V/5V supplies and is fabricated on a 0.35 um CMOS process. An FPGA (Field-Programmable Gate Array) 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 SX family sits among one-time-programmable (OTP) antifuse FPGAs, which sit above SPLDs/CPLDs in gate density. Unlike SRAM FPGAs, antifuse devices are non-volatile, secure, and require no configuration PROM, making them attractive for high-reliability and space-constrained systems. Key features include a sea-of-modules architecture that yields high routing efficiency and deterministic timing, 3.7 ns pin-to-pin clock-to-output, 0.1 ns input setup, and 0.25 ns clock skew. The device supports 66 MHz PCI integration as a single-chip solution, combining CPLD and FPGA functions without external glue logic. Technically, the SX family uses a fine-grained sea-of-modules fabric built around C-cells (combinational) and R-cells (register), giving near-ASIC logic utilization. The antifuse interconnect provides low parasitic capacitance, supporting the 240 MHz internal clock rate and lower static power than equivalent SRAM FPGAs. Typical applications include industrial control, communications and networking line cards, avionics and military subsystems requiring design security, and PCI-compliant interface bridging where the 66 MHz PCI capability eliminates a separate bridge chip. Designers should note that this is a one-time-programmable device: the design must be finalized before programming, and speed-grade selection (-1, -2, standard) directly affects the achievable internal frequency. Verify I/O bank assignments and 329-BGA ballout against the manufacturer datasheet before layout. This page adds value beyond the datasheet by synthesizing distributor pricing, drop-in same-package alternatives (SX and SX-A family speed grades), and practical design notes for obsolescence management of this mature Actel/Microsemi product line.
A54SX32-BGG329I - 32K-Gate SX FPGA, 249 I/O, 329-BGA | Microchip
The Microchip Technology (Microsemi/Actel) A54SX32-BGG329I is a 32,000-system-gate antifuse FPGA from the SX family with 2,880 logic cells, 249 user I/O, and up to 240 MHz internal system performance, housed in a 329-ball plastic BGA (329-BBGA) package in an industrial-grade (I-suffix) temperature variant. A Field-Programmable Gate Array (FPGA) is a user-configurable integrated circuit whose internal logic is defined after manufacturing rather than fixed at the fab. Within the semiconductor hierarchy, an FPGA sits above fixed-function logic (CPLD, standard logic) and below ASICs in volume economics: it offers ASIC-like integration without mask costs or NRE. The Actel SX family uses a sea-of-modules architecture built on antifuse programmable interconnect, which is one-time programmable but keeps configuration data non-volatile and resistant to readback. Key differentiating specifications include 320 MHz internal toggle-class performance, 3.7 ns pin-to-pin clock-to-out, 0.1 ns input setup time, and 0.25 ns clock skew - timing figures that allow the SX32 to replace multi-chip CPLD/FPGA combinations and to implement 66 MHz PCI logic in a single-chip solution. The 0.35 um CMOS process supports dual 3.3V core / 5V tolerant I/O operation. Architecturally, the SX family's sea-of-modules structure eliminates the long routing delays typical of channel-based FPGAs, so timing is predictable and largely independent of placement. Because antifuse interconnect adds no configuration cell capacitance in the signal path, the device achieves performance-intensive operation at reduced power versus SRAM FPGAs of comparable capability, and its design is inherently secure since no bitstream is stored on chip. Typical applications include 66 MHz PCI bus interfaces, industrial control and automation, aerospace and defense logic integration (where the I-grade industrial variant is common), communications line cards, and single-chip glueless integration of previously discrete CPLD and FPGA functions. Design consideration: antifuse FPGAs are one-time programmable, so logic must be verified thoroughly in simulation with Actel (Microchip) Libero-style toolchains before programming; there is no in-system reconfiguration as with SRAM FPGAs. This page adds information gain over the manufacturer datasheet by consolidating distributor pricing context, same-footprint BGA variant alternatives from the Microchip SX family, engineering design notes, and an FAQ set optimized for quick engineering answers.
A54SX32-CQ208 - 32K-Gate SX FPGA, CQFP-208 | Microchip Technology
The Microchip Technology (Microsemi/Actel) A54SX32-CQ208 is a 32,000-gate antifuse FPGA from the SX family, built on 0.35 um technology with 1,800 logic cells, 2,880 logic modules, 174 user I/O pins, and system performance up to 205 MHz, housed in a 208-pin ceramic quad flat package (CQFP/BFCQFP with tie bar, 75x75 mm) and operating from dual 3.3 V and 5 V supplies in commercial temperature grade. A field-programmable gate array (FPGA) is a semiconductor device containing programmable logic blocks and interconnects that designers configure after manufacturing. The SX family sits in the broader hierarchy of FPGA -> programmable logic device -> digital IC, and specifically uses Actel's antifuse (one-time programmable) technology rather than SRAM configuration, which means the configuration is non-volatile, immediately active at power-up, and inherently resistant to configuration readback. Key features of the A54SX32-CQ208 include its sea-of-modules architecture, which delivers high gate utilization and predictable timing; dual-voltage operation (3.0 V to 3.6 V core/I/O and 4.75 V to 5.25 V for 5 V-tolerant systems); 174 programmable I/O pins supporting legacy 5 V interfaces; and the ceramic CQFP package with a tie bar, which provides excellent thermal and mechanical robustness for military-style and high-reliability sockets. The antifuse fabric also eliminates the need for external configuration storage such as flash or boot PROMs, reducing bill-of-material cost and board area. Technically, the SX architecture uses a sea-of-modules approach with combinable C-cells and R-cells, enabling dense pipelined designs at up to 205 MHz. Routing resources are rich and local, keeping interconnect delays short and predictable, which is why the SX family was widely adopted in performance-intensive data-path, glue-logic consolidation, and embedded control designs. Typical applications include industrial control systems, communications and networking equipment, aerospace test instrumentation, and legacy 5 V system upgrades where a non-volatile, instantly-on FPGA is required. When designing with this device, note that antifuse programming is one-time only: final logic must be verified in simulation before programming, and the dual-supply system requires careful power sequencing to avoid latch-up during mixed-voltage bring-up. This page synthesizes distributor pricing, drop-in same-package alternatives, practical design notes, and AEO-optimized FAQs not found in the manufacturer datasheet.
A54SX32-CQ208B - 48K Gate Military FPGA 208-CQFP | Microchip
The Microchip Technology (Microsemi) A54SX32-CQ208B is a 48,000-system-gate antifase FPGA from the SX family, offering 174 user I/O and up to 238 MHz system performance, housed in a 208-pin ceramic CQFP (BFCQFP with tie bar) package rated for military temperature ranges from -55C to +125C junction temperature. 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: FPGA -> programmable logic device -> digital integrated circuit -> semiconductor. The Actel SX family uses antifuse programming technology, meaning the configuration is one-time programmable (OTP) and retains its configuration permanently with no external configuration boot device required. Key features of the A54SX32-CQ208B include a sea-of-modules architecture that delivers high gate utilization and predictable timing, dual supply operation (3V to 3.6V core/I/O domain and 4.75V to 5.25V programming supply), 48,000 system gates equivalent to roughly 3,456 usable logic modules, and military-grade temperature qualification. The ceramic CQFP package with tie bar provides hermetic sealing, making the device suitable for high-reliability defense and aerospace environments where plastic-packaged commercial FPGAs are unacceptable. Technically, the SX architecture combines dedicated registers with combinatorial modules, enabling register-heavy pipelines at clock rates up to 238 MHz. Because antifuse interconnect has no SRAM configuration bitstream overhead, the device offers lower static power and inherent resistance to configuration upset compared with SRAM FPGAs, an important attribute in radiation-tolerant and secure system designs. Typical applications include military avionics glue logic and bus interfaces, spacecraft and missile electronics, industrial systems requiring secure one-time-programmable logic, and legacy design sustainer builds where the SX family was originally designed in. A key design consideration: this part is RoHS non-compliant due to lead-containing ceramic package terminations, so it is restricted to military and aerospace exemptions. This page synthesizes distributor availability data, drop-in family alternatives, and military-grade design notes not consolidated in the manufacturer datasheet.
A54SX32-CQ208BX181 - SX FPGA 48K Gates 208-CQFP | Microchip
The Microchip Technology (Actel) A54SX32-CQ208BX181 is a member of the SX family of antifuse-based field-programmable gate arrays (FPGAs) offering 48,000 system gates in a 208-pin ceramic quad flat package (CQFP) with tie bar. The device delivers 320 MHz internal performance, 3.7 ns pin-to-pin clock-to-out, 0.1 ns input setup time, and 0.25 ns clock skew, and provides 174 usable programmable I/O pins. 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 to implement custom digital hardware. Within the programmable logic hierarchy, the FPGA sits above CPLDs in gate count and functionality, and the SX family belongs to the broader category of one-time-programmable (OTP) antifuse FPGAs, positioned under programmable logic devices and logic ICs. Key features of the A54SX32-CQ208BX181 include the sea-of-modules architecture with 2,880 Rex modules (combinatorial and sequential logic cells), dual-voltage operation supporting core/IO supplies of 3.0 V to 3.6 V and 4.75 V to 5.25 V for mixed-voltage system integration, 100% resource utilization with 100% pin locking, and PCI compliance at 66 MHz. The antifuse fabric is inherently non-volatile and immediately active at power-up, requiring no configuration device, which improves security and simplifies the power supply design. Technically, the SX family uses a sea-of-modules architecture in which each module is a compact logic cell implementing both combinational and registered functions. Because routing is performed by sub-micron antifuse elements rather than SRAM pass gates, the device achieves ASIC-like speed and low power with very low switching noise, while remaining reprogrammable at the device level only in the sense of one-time programming at programming time. Typical applications include high-reliability and long-lifecycle systems such as industrial control, avionics and defense platforms, communications infrastructure glue logic, and bus-interface bridging where 66 MHz PCI integration and single-chip logic consolidation are required. A key design consideration is that antifuse FPGAs are one-time programmable: the design must be fully verified before programming, and engineering changes require new devices. Dual-supply systems must respect power-up sequencing between the 3.3 V and 5.0 V rails per the manufacturer datasheet. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet, providing information gain for engineers evaluating the A54SX32-CQ208BX181.
A54SX32-CQ256 - 32K-Gate SX FPGA, 256-CQFP | Microsemi
The Microsemi (Microchip) A54SX32-CQ256 is a 32,000-gate SX-family FPGA built on a sea-of-modules architecture, offering 203 user I/O in a 256-pin ceramic CQFP (BFCQFP with exposed pad and tie bar) package. This antifuse-programmable FPGA delivers ASIC-like integration levels with deterministic performance for high-reliability applications. An FPGA (Field-Programmable Gate Array) is a semiconductor device containing configurable logic blocks and programmable interconnects that the designer wires together after manufacturing, sitting in the hierarchy between fixed-function ASICs and general-purpose microcontrollers. The Actel/Microchip SX family uses a sea-of-modules architecture built around C-cells and R-cells in a patented metal-to-metal antifuse programming technology, which yields fast, predictable interconnect and non-volatile configuration without external boot memories. Key features include 32,000 system gates, 203 available user I/O, and the rugged ceramic CQFP-256 package rated for demanding environments. Antifuse programming provides instant-on configuration, immunity to configuration upsets relative to SRAM FPGAs, and no external configuration PROM, reducing BOM count and board space. The architecture simplifies timing closure, enabling dramatic reductions in design time and time to market for performance-intensive designs. The SX sea-of-modules structure places logic modules in a dense regular array with segmented routing, achieving system speeds well into the hundreds of megahertz range with short, deterministic delays. Design entry is performed in Microchip/Lattice-class synthesis flows targeting Actel SX devices, with the deterministic antifuse fabric easing timing sign-off compared to SRAM FPGA re-routing exercises. Typical applications include aerospace and defense logic integration, industrial control glue logic, communications bridge logic, and high-reliability embedded systems where configuration persistence and radiation-tolerant-adjacent packaging heritage matter. The ceramic CQFP package with exposed pad and tie bar supports socketed or soldered mounting with strong mechanical and thermal characteristics. Design consideration: verify both the 3V~3.6V core and 4.75V~5.25V I/O supply domains in your power tree, and plan for one-time programming - functional changes require a new device. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
A54SX32-CQ256B - 48K Gate Military FPGA, 203 I/O | Microsemi
The Microsemi Corporation A54SX32-CQ256B is a 48,000-gate SX-family FPGA delivering 203 user I/O in a 256-pin ceramic CQFP (256-BFCQFP, 75x75 mm) package with exposed pad and tie bar. An FPGA (Field Programmable Gate Array) is a semiconductor device containing a matrix of configurable logic blocks and programmable interconnects that the designer programs to implement custom digital circuits. In the programmable-logic hierarchy, the A54SX32 belongs to the Actel SX antifuse FPGA family, positioned as a one-time-programmable (OTP), radiation-robust alternative to SRAM-based FPGAs. Because antifuse configuration is non-volatile and stored within the silicon, SX devices require no external configuration PROM and offer inherent resistance to configuration upset - key reasons they persist in aerospace and defense platforms. Key features include 32K system gates with 2880 logic array blocks, a 0.35 um CMOS process, and system performance up to approximately 205 MHz. The dual-supply architecture operates core and I/O from 3V to 3.6V and 4.75V to 5.25V, supporting mixed 3.3V/5V system environments. The C grade (military temperature) suffix of the -CQ256B version supports a junction temperature range of -55C to +125C, making it suitable for high-reliability defense, avionics, and space-adjacent industrial applications where commercial FPGAs cannot survive. Typical applications include military avionics bus interfaces, radiation-tolerant satellite payload glue logic, secure weapons-system control logic, and industrial systems requiring 5V-tolerant I/O and OTP security. Design consideration: antifuse FPGAs are one-time programmable - fix your design before programming, and budget die access for Libero/Designer toolchain flows during prototyping. This page synthesizes distributor stock data, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
A54SX32-CQ256M - 32K Gate SX FPGA 205MHz CQFP-256 | Microsemi
The Microsemi (now Microchip Technology) A54SX32-CQ256M is a 32,000-gate antifuse FPGA from the SX family, offering 1,800 logic cells (2,880 logic modules reported by some sources), up to 203 user I/O pins, and a maximum clock frequency of 205 MHz, housed in a 256-pin CQFP (Ceramic Quad Flat Package, 75x75 mm) with exposed pad and tie bar. It operates from dual supply rails of 3.0V to 3.6V and 4.75V to 5.25V. An antifuse FPGA is a type of field-programmable gate array in which the interconnect configuration is permanently set at power-up programming by blowing microscopic antifuse elements. Unlike SRAM-based FPGAs from Xilinx or Altera, antifuse devices are non-volatile, radiation-tolerant by nature of their architecture, and immune to configuration bitstream interception, making them a member of the broader programmable logic family that also includes CPLDs and flash-based FPGAs. Key features of the A54SX32-CQ256M include the sea-of-modules architecture that delivers ASIC-like routing efficiency, 0.35 um process technology supporting up to 205 MHz system performance, dual-rail power operation (3.3V core/I-O and 5.0V tolerant supply range) for mixed-voltage systems, and a ceramic package suited to high-reliability and extended-temperature environments. Technically, the SX family uses a patented sea-of-modules fabric built from combinational and sequential logic modules, giving deterministic, short interconnect delays that distinguish it from SRAM FPGA architectures. Design entry and implementation are performed with Actel/Microsemi Libero SoC (Designer) tooling, and the design is one-time-programmable, which removes the need for an external configuration PROM and reduces board-level BOM cost. Typical applications include aerospace and defense signal processing, industrial control, communications infrastructure glue logic, and bridge/interface functions where 5V compatibility and non-volatile one-time programming are required. The 203 user I/O capacity supports wide parallel bus interfacing in legacy backplane systems. A key design consideration is that antifuse devices cannot be reprogrammed: verify the design fully in simulation before programming production units, and note that the CQFP package requires careful socket or solder handling due to its lead-frame construction. This page synthesizes distributor pricing context, drop-in alternatives, pinout guidance, and practical design notes not found in the manufacturer datasheet.
A54SX32-PQ208 - SX FPGA, 48K Gates, 174 I/O | Microchip
The Microchip Technology A54SX32-PQ208 (originally Actel, then Microsemi) is a high-performance SX-family antifuse FPGA delivering 48,000 gates with 2880 logic modules (CLBs), 174 user I/O pins, and internal performance up to 280-320 MHz, housed in a 208-pin 28 mm x 28 mm Plastic Quad Flat Package (PQFP) for surface mounting. An FPGA (Field-Programmable Gate Array) is a semiconductor device containing a fabric of configurable logic blocks and programmable interconnects that the designer wires together after manufacturing. Unlike SRAM FPGAs, the SX family uses antifuse programming technology, which is one-time programmable: the configuration becomes a permanent, non-volatile connection at power-up with no external configuration device, no configuration time, and inherently high resistance to design theft and SEU-induced reconfiguration issues. Key features of the A54SX32-PQ208 include a sea-of-modules architecture for high logic utilization with 100% pin locking, 3.0V to 3.6V core operation (nominal 3.3V) with 5.0V-tolerant capability via dual-rail support of 4.75V to 5.25V, and timing performance of 320 MHz internal toggle with 3.7 ns pin-to-pin clock-to-out, 0.1 ns input set-up, and 0.25 ns clock skew. These characteristics support 66 MHz PCI single-chip integration. The sea-of-modules floorplan covers the entire die with a grid of logic modules built around C-cells and S-cells, enabling predictable routing and full-resource utilization. The antifuse fabric yields low static power consumption compared to SRAM FPGAs of similar capacity. Typical applications include glueless 66 MHz PCI designs, industrial control, communications line cards, military/aerospace subsystems requiring non-volatile, instant-on programmable logic, and as a drop-in capacity upgrade path within the SX family. Design consideration: because the device is one-time programmable, verify the full design via simulation before programming the antifuses; there is no in-system reconfiguration. Budget the dual supply rails (3.3V and optional 5V) in the power tree. This page synthesizes distributor pricing, drop-in same-package alternatives, practical design notes, and verified specifications not consolidated in any single datasheet or distributor listing.
A54SX32-PQ208I - 48K Gate FPGA 174 I/O PQFP-208 | Microchip
The Microchip Technology (Actel/Microsemi) A54SX32-PQ208I is an antifuse FPGA from the SX family providing 48,000 gates with 1,800 logic cells (modules) and 174 configurable user I/O, housed in a 208-pin 28 mm x 28 mm PQFP (208-BFQFP) package rated for industrial temperature operation. It delivers up to 320 MHz internal performance with 3.7 ns pin-to-pin clock-to-out, 0.1 ns input setup, and 0.25 ns clock skew, operating from dual supply rails of 3.3 V (core) with 5.0 V tolerant I/O. An antifuse FPGA is a one-time-programmable field programmable gate array in which each programmable interconnect point is an amorphous silicon antifuse that permanently forms a low-resistance link during programming. Within the semiconductor hierarchy, the A54SX32-PQ208I sits under FPGA -> field-programmable logic -> programmable SoC/system logic. Unlike SRAM FPGAs, antifuse devices are non-volatile at power-up, highly resistant to configuration corruption, and need no external configuration PROM, which is why the SX family is widely deployed in aerospace, industrial, and long-lifecycle embedded systems. Key differentiating features include the sea-of-modules architecture that enables 100% resource utilization with 100% pin locking, eliminating the routability penalties typical of channel-based FPGA architectures. The device supports 66 MHz PCI designs as a single-chip CPLD/FPGA integration solution, and its 3.3 V operation with 5.0 V tolerant inputs simplifies interfacing to legacy 5 V TTL buses. Technically, the A54SX32 is fabricated in a 0.35 um CMOS process and contains 2,880 LABs/CLBs organized as a sea of C-cells and R-cells. This fine-grained architecture yields deterministic timing: clock skew is held to 0.25 ns and clock-to-out to 3.7 ns across the full 174 I/O, allowing high-frequency state machines and PCI interfaces to close timing without iterative floorplanning. Typical applications include PCI bus interface logic, glueless system integration replacing multiple CPLDs and ASSPs, industrial automation controllers, and defense/industrial systems requiring non-volatile, single-chip programmable logic with long-term availability. Design consideration: the device is one-time programmable, so prototype thoroughly in simulation and verify I/O assignments before programming; there is no in-system reprogramming fallback. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
A54SX32-PQ208M - 48K Gate FPGA, 174 I/O, PQFP-208 | Microchip
The Microchip Technology (Microsemi/Actel) A54SX32-PQ208M is a 48,000-gate SX-family antifase CMOS Field Programmable Gate Array (FPGA) with 174 programmable I/O pins, internal performance up to 320 MHz, and a 3.3 V nominal supply (3.0 V to 3.6 V range, 5 V tolerant operation), housed in a 208-pin Ball-less Quad Flat Package (208-BFQFP/PQFP) with a 28 x 28 mm body and 0.5 mm terminal pitch. An FPGA (Field Programmable Gate Array) is a semiconductor device containing programmable logic blocks and interconnects that designers configure in the field, sitting in the semiconductor hierarchy as a programmable logic IC below ASICs but above CPLDs in gate count. The Actel SX family uses a sea-of-modules architecture that simplifies design time, reduces design cost and power consumption, and shortens time to market for performance-intensive applications. Key features of the A54SX32 include 3.7 ns clock-to-out (pin-to-pin), 0.1 ns input setup time, and 0.25 ns clock skew, enabling 66 MHz PCI single-chip integration with 100% resource utilization and 100% pin locking. The 3.3 V core operation with 5.0 V tolerant inputs eases interfacing with legacy 5 V logic in industrial systems. Technically, the device is fabricated on a 0.35 um CMOS process and offers antifuse program-once security, which makes the configuration non-volatile, non-reprogrammable by third parties, and immune to configuration readback attacks - a distinct advantage over SRAM FPGAs where bitstream security matters. Typical applications include industrial control, 66 MHz PCI interface glue logic integration, communications equipment, and military/aerospace subsystems where non-volatile, secure, single-chip FPGA integration is required. Design consideration: verify the exact speed-grade suffix (standard M grade versus P1/PP faster grades) against your timing closure requirements, since the M grade runs 240 MHz maximum versus faster variants. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
A54SX32-PQG208 - 32K-Gate SX FPGA, 208-PQFP | Microchip
The Microchip Technology A54SX32-PQG208 (Actel SX family) is a 32,000-gate antifuse FPGA with 1800 logic modules, up to 240 MHz system performance, and 174 user I/O, housed in a 208-pin Plastic Quad Flat Pack (PQFP) with gull-wing terminals. It operates from a 3.3V/5V supply environment and uses 0.35 um CMOS antifuse technology. An FPGA (Field-Programmable Gate Array) is a semiconductor device containing a fabric of configurable logic blocks and interconnects that the designer programs after manufacturing. The Actel SX family belongs to the one-time-programmable (OTP) antifuse FPGA class, positioned within the broader programmable logic hierarchy alongside SRAM-based and flash-based FPGAs. Unlike SRAM FPGAs, antifuse devices are non-volatile, configuration is stored in the silicon itself, and there is no need for an external configuration flash or boot sequence. Key features include a sea-of-modules architecture that delivers high routing efficiency and predictable timing, 32K system gates of usable density, and 174 user-selectable I/O in the 208-BFQFP package. The antifuse interconnect adds near-zero capacitance, contributing to the family's class-leading speed and low dynamic power consumption. Technically, the SX architecture uses a sea-of-modules fabric built from combinational and sequential logic modules (C-cells and R-cells) interconnected through a metal-to-metal antifuse program layer on a 0.35 um process. Once programmed, connections are permanent, giving high immunity to configuration upsets compared with volatile fabrics, which is why Actel/Microchip antifuse FPGAs historically found use in high-reliability systems. Typical applications include glueless interface and bridge logic, bus translation and protocol conversion, high-speed state machines, and performance-intensive control logic in industrial, communications, and defense-adjacent equipment. A key design consideration: the A54SX32-PQG208 is one-time programmable, so prototype iterations require new devices; plan design freezes and use the manufacturer design tools for simulation before programming. This page synthesizes distributor availability, same-package drop-in family variants, and practical design notes not found in the manufacturer datasheet.
A54SX32-PQG208I - SX FPGA 48K Gates 174 I/O | Microchip
The Microchip Technology (Microsemi/Actel) A54SX32-PQG208I is a member of the SX family of anti-fuse FPGAs offering 32,000 logic gates (48K system gates), 1800 logic modules, 174 user I/Os, and system performance up to 240 MHz, housed in a 208-pin Plastic Quad Flat Pack (PQG208/BFQFP) with industrial temperature rating of -40C to +85C. It operates from a 3.3V/5V supply on 0.35 um CMOS technology. An FPGA (Field-Programmable Gate Array) is a semiconductor device containing a fabric of configurable logic blocks and interconnects that the designer programs after manufacturing. Within the programmable logic hierarchy, the A54SX32 sits at the device level under FPGA -> programmable logic -> digital logic IC. The SX family uses a sea-of-modules architecture built on a patented antifuse interconnect, which delivers ASIC-like routability and performance with no configuration storage element required. Key features include one-time-programmable antifuse technology that eliminates the need for external boot flash and removes configuration-bitstream security concerns, sub-10 ns deterministic interconnect delays, 174 user-input/output pins on the 208-pin QFP body, and low static power consumption typical of antifuse CMOS fabric. Technically, the device integrates combinational and sequential logic modules (the 1800-cell array) with dedicated clock resources, achieving deterministic, delay-predictable routing that SRAM FPGAs of the era could not match. The antifuse elements add near-zero capacitance to the routing network, which is the primary reason for the 240 MHz toggle capability at 0.35 um geometry. Typical applications include industrial control and automation logic, glueless bus interfacing and bridge logic, telecommunications and data-communication line-card control, and military/avionic systems where instant-on and configuration-security properties of antifuse technology are valued. A key design consideration is that antifuse FPGAs are one-time programmable: any functional change requires a new device, so reserve engineering margin in I/O count and module utilization before committing the design. Use Libero SoC (Designer) toolchain for place-and-route and timing sign-off. This page synthesizes verified distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
A54SX32-PQG208M - SX FPGA 32K Gates 208-QFP | Microchip
The Microchip Technology (Actel/Microsemi) A54SX32-PQG208M is an SX-family antifuse FPGA with 32K system gates (2880 CLBs) and 174 user I/Os, housed in a 208-terminal PQFP (208-BFQFP) surface-mount package with a 0.5 mm terminal pitch. An FPGA (Field-Programmable Gate Array) is a semiconductor device containing a matrix of configurable logic blocks (CLBs) interconnected by programmable fabric, allowing designers to implement custom digital logic after manufacturing. The Actel SX family belongs to the one-time-programmable (OTP) antifuse class of FPGAs, positioned within the broader programmable logic hierarchy: FPGA -> programmable logic IC -> CMOS digital IC. Antifuse technology stores configuration physically, giving it inherently high resistance to configuration upset compared with SRAM-based FPGAs. Key features of the A54SX32 include a sea-of-modules architecture that delivers very high routing efficiency and performance per gate, a maximum toggle rate of approximately 280 MHz, and a supply voltage range of 3.0 V to 3.6 V (nominal 3.3 V) with support for 5 V-tolerant operation modes. The sea-of-modules topology simplifies timing closure because every module sits within short routing reach, enabling dramatic reductions in design time, power consumption, and time to market for performance-intensive applications. Technically, the device provides 2880 combinational and sequential capability modules organized as a dense mesh. Because configuration is stored in antifuse elements rather than volatile SRAM, no external configuration PROM is required, reducing BOM cost and board space and improving system security since the bitstream is not readable. The PQG208 commercial temperature variant supports 0 C to +70 C ambient operation. Typical applications include industrial control and automation logic, communications and networking glue logic, test and measurement instrumentation, and mil/aero-adjacent ground equipment where one-time programmability and design security are valued. A key design consideration: antifuse FPGAs are OTP - an incorrect programming run consumes a device, so reserve spare I/Os and gate margin, and use Microchip Libero/Designer tool timing reports before committing to programming. This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
A54SX32-TQ144 - 32K Gate SX FPGA 113 I/O TQFP-144 | Microchip
The Microchip (Actel) A54SX32-TQ144 is a 32K system gate SX-family FPGA with 113 user I/Os, based on a sea-of-modules antifuse architecture, housed in a 144-pin thin quad flat package (TQFP/LQFP-144). Originally introduced by Actel and carried through Microsemi to Microchip Technology, it targets performance-intensive designs requiring deterministic, instant-on operation. A field-programmable gate array (FPGA) is an integrated circuit that implements custom digital logic through configurable logic modules and routing resources. Within the programmable logic hierarchy, the SX family sits in the one-time-programmable (OTP), antifuse-based FPGA class, positioned below the radiation-tolerant RTAX line and alongside the higher-performance SX-A family in the Actel/Microchip product taxonomy. Key features of the A54SX32 include 32,000 usable system gates implemented in a sea-of-modules architecture, 113 available user I/Os, and single-chip integration with no external configuration device required because antifuse programming is permanent and non-volatile at power-up. This eliminates configuration time and configuration readback security risks common to SRAM FPGAs. Architecturally, the SX family combines C-cells (combinational) and R-cells (register) in a sea-of-modules array, delivering gate-level performance approaching ASIC-like timing predictability. The 0.35 um-class process yields high toggle rates with low interconnect delay variation, making static timing analysis straightforward. Typical applications include industrial control, communications and networking glue logic, avionics and defense embedded controllers, and ASIC prototype translation, where instant-on behavior and design security matter. Design consideration: because the SX family is one-time programmable, verify the design thoroughly in simulation before programming production devices. This page synthesizes verified distributor pricing, pin-compatible same-family alternatives, and practical design notes not found in the manufacturer datasheet.
A54SX32-TQ144I - 48K Gate SX FPGA, 113 I/O | Microchip Technology
The Microchip Technology A54SX32-TQ144I is a 48,000-system-gate Actel SX-family antifuse FPGA with 113 user I/O, 2880 logic array blocks (LABs), and 2.5V core operation, housed in a 144-pin TQFP (LQFP) surface-mount package rated for industrial temperatures. Its sea-of-modules architecture delivers ASIC-like performance and integration without the mask costs or NRE of a custom device. An FPGA (Field-Programmable Gate Array) is a programmable logic device that lets designers implement custom digital circuits by configuring internal logic blocks and interconnect after manufacturing. Within the programmable logic hierarchy, the SX family sits among high-performance one-time-programmable (OTP) antifuse FPGAs, sitting above CPLDs in density and below modern SRAM FPGAs in flexibility, but offering superior security and instant-on behavior because the configuration is hard-wired in silicon antifuse elements. Key features include a 32K system gate density class (approximately 48,000 gates per Microchip USA product documentation), 1800 logic cells organized into 2880 LABs, up to 238 MHz system performance on a 0.25 um process, and 113 user I/O pins in the 144-TQFP footprint. Because configuration data lives in antifuse connections, the device is immune to configuration readback attacks and requires no external boot memory, reducing BOM count and improving power-up reliability. Technically, the SX architecture uses a sea-of-modules fabric with fast local routing and segmented global interconnect, enabling deterministic, low-skew clocking for performance-intensive designs. Design entry uses Synopsys or third-party synthesis flows compiled through Microchip (Actel/Microsemi) Designer software. Typical applications include industrial control and automation logic, communications and networking glue logic, military/aerospace payloads needing OTP security, and bridge/interfacing circuits replacing multiple discrete devices. Design consideration: as a one-time-programmable device, verify the design fully in simulation before programming, and reserve spare I/O for engineering change margin. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design guidance not consolidated in the manufacturer datasheet.
A54SX32-TQ144M - 32K Gate FPGA, 240MHz, TQFP-144 | Microchip
The Microchip Technology (Microsemi/Actel) A54SX32-TQ144M is a 32,000-gate antifuse FPGA from the SX family, fabricated on a 0.35 um CMOS process, delivering up to 240 MHz system performance in a 144-pin TQFP surface-mount package with 113 user I/Os. An FPGA (Field-Programmable Gate Array) is a semiconductor device that implements digital logic through programmable interconnect and configurable logic blocks, sitting within the broader hierarchy of programmable logic ICs alongside CPLDs and ASICs. The Actel SX family pioneered a sea-of-modules architecture, in which a dense array of logic modules is surrounded by routing resources, providing ASIC-like gate utilization and timing predictability without the NRE cost and lead time of a mask-programmed device. Key features include 32,000 equivalent system gates organized in 1,800 logic modules (2,880 CLB-equivalent cells), a maximum toggle rate of 240 MHz (up to 350 MHz for the -3 speed grade per Microchip documentation), and dual 3.3V/5V-tolerant I/O operation. The antifuse programming technology is one-time programmable, giving the device inherent resistance to configuration readback attacks and SEU-sensitive configuration memory issues that affect SRAM FPGAs. Technical depth: the sea-of-modules architecture uses two types of logic modules (C-cells for combinatorial logic and R-cells for registers) connected through a segmented routing fabric, enabling deterministic, short interconnect delays that made the SX family popular for high-speed state machines, bus interfaces, and glueless CPU support logic in embedded systems. Typical applications include industrial control and automation backplanes, aerospace and defense subsystems requiring non-volatile, power-up-immediate logic, communications line cards, and legacy design sustainment where the original Actel SX design files are still deployed. Design consideration: because the device is one-time programmable and antifuse-based, programming must be performed after assembly on the target board via the JTAG port; plan in-system programming access and verify the final netlist before burn, as rework is not possible. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet, with pricing verified as of 2026-09-03.
A54SX32-TQ176 - 32K-Gate SX FPGA, TQFP-176 | Microchip
The Microchip (Actel/Microsemi) A54SX32-TQ176 is a 32,000-system-gate antifuse FPGA from the SX family, built on a 0.35 um process with up to 240 MHz performance, 147 user I/Os, and a 176-pin TQFP (24x24 mm) surface-mount package operating from a 3.3 V (3.0 V to 3.6 V) core supply with 5.0 V (4.75 V to 5.25 V) I/O capability. An FPGA (Field-Programmable Gate Array) is a semiconductor device containing a fabric of programmable logic blocks and interconnects that engineers configure after manufacturing, sitting in the hierarchy of programmable logic below full-custom ASICs and above fixed-function logic ICs. The SX family differs from SRAM-based FPGAs because it uses antifuse programming elements: the configuration is one-time programmable (OTP), non-volatile, and inherently immune to configuration-readout attacks and radiation-induced configuration upsets. Key features of the A54SX32 include a sea-of-modules architecture with 2880 logic modules, dual-voltage operation (3.3 V core, 5 V-tolerant I/O), and deterministic interconnect that delivers ASIC-like timing predictability. According to the Microchip SX family datasheet, the family was designed for performance-intensive applications requiring dramatic reductions in power consumption compared with SRAM FPGAs. Technically, the 0.35 um antifuse process provides low routing capacitance, which is the root cause of the SX family's speed advantage: signals travel through fewer buffered segments, so critical paths see lower delay and jitter. The OTP nature also removes the configuration PROM and power-up configuration time required by SRAM FPGAs, improving system boot behavior andglitch resistance. Typical applications include telecommunications and networking line cards, industrial control, aerospace and defense payloads, and test equipment glue-logic consolidation, where the combination of 32K gates, 147 I/Os, and 5 V-tolerant I/O matches legacy board designs. A critical design consideration is that this commercial-temperature (0 to 70 C) leaded part is obsolete and RoHS non-compliant; new designs should use the green A54SX32-TQG176 variants or plan a lifecycle strategy. This page synthesizes distributor availability, same-family drop-in variants, and obsolescence guidance not consolidated in the manufacturer datasheet.
A54SX32-TQ176I - 32K Gate SX FPGA, 147 I/O, TQFP-176 | Microchip
The Microchip (Actel/Microsemi) A54SX32-TQ176I is a 32,000-system-gate antifuse FPGA from the SX family with 1800 logic modules, up to 240 MHz system performance, 147 user I/O, and dual supply rails of 3.3V and 5V (3.0V-3.6V and 4.75V-5.25V), housed in a 176-pin TQFP (24x24 mm) industrial-grade package. An FPGA (Field-Programmable Gate Array) is a semiconductor device containing a fabric of programmable logic blocks and interconnects that engineers configure in the field to implement custom digital circuits. Within the product hierarchy, the A54SX32 belongs to programmable logic ICs -> FPGA -> one-time-programmable antifuse FPGA, a category pioneered by Actel and continued under Actel, Microsemi, and now Microchip Technology. Key features include the sea-of-modules architecture that delivers ASIC-like routing efficiency and deterministic timing, one-time-programmable antifuse technology that is inherently secure and radiation-tolerant compared to SRAM FPGAs, zero standby power configuration retention without an external boot PROM, and the 0.35 um CMOS process enabling 240 MHz toggle rates. Technically, the SX family uses C-cells for combinational logic and R-cells for registers, connected through a three-level metal routing fabric. Because configuration is stored in antifuse elements rather than SRAM cells, the device powers up instantly with no configuration time and is immune to bitstream readback attacks. Typical applications include industrial control and automation, bridge logic between 5V and 3.3V systems, glue-logic consolidation, avionics and defense subsystems, and telecommunications line-card functions where instant-on and single-chip security matter. Design consideration: as a one-time-programmable device, verify the design thoroughly in simulation before programming, since a bitstream error consumes the physical part. This page synthesizes verified distributor availability data, same-footprint drop-in family variants, and engineering guidance not found in a single manufacturer datasheet.
A54SX32-TQ176M - 32K-Gate Anti-Fuse FPGA, TQFP-176 | Actel/Microchip
The Actel (now Microchip Technology) A54SX32-TQ176M is a 32,000-gate anti-fuse FPGA from the SX family, featuring a sea-of-modules architecture with 1800 logic cells, a maximum toggle frequency of up to 240 MHz, and 0.35 um CMOS anti-fuse technology, housed in a 176-pin thin quad flat pack (TQFP-176) military temperature grade (-55C to +125C) package. An FPGA (Field-Programmable Gate Array) is a programmable logic device that lets designers implement custom digital circuits after manufacturing. The SX family uses Actel's one-time-programmable (OTP) anti-fuse interconnect, which differs fundamentally from SRAM-based FPGAs: configuration is permanent, non-volatile, and immune to configuration-readout, making it attractive for defense, avionics, and space systems. Within the power-management hierarchy of programmable logic, SX sits at the high-performance, single-event-hardened end of 1990s-era Actel silicon. Key features include a sea-of-modules architecture built from C-cells and R-cells (combinatorial and sequential logic modules), 3.3V core operation with 5V-tolerant I/O capability, a combinatorial delay of roughly 0.6 ns per logic module, and the very low routing delay typical of anti-fuse devices - which yields predictable, low-jitter timing unmatched by SRAM FPGAs of the same era. Technical depth: the SX architecture delivers gate utilization above typical FPGA norms because routing is fixed at manufacture, eliminating the large interconnect capacitance that limits SRAM FPGA speed. The 0.35 um process enables 240 MHz-class counter/toggle rates. The TQ176M suffix denotes the military temperature range (M grade, -55C to +125C) in a 0.5 mm pitch, 28 x 28 mm TQFP body. Typical applications include military and aerospace control logic, glueless bus interface and bridge logic, high-speed datapath and protocol engines, and mixed 3.3V/5V system integration in legacy industrial platforms. Design consideration: the device is one-time programmable - there is no field rework, so verify timing closure in Actel Designer / Libero before programming, and note that the leaded TQ176M finish is RoHS non-compliant for new commercial designs. This page synthesizes verified distributor data, drop-in same-family alternatives, pricing tiers, and practical design notes not found in the manufacturer datasheet.
A54SX32-TQG144 - 48K-Gate Antifuse FPGA, 144-TQFP | Microchip
The Microchip Technology A54SX32-TQG144 is a 48,000-gate antifuse FPGA from the Actel SX family, offering 2880 logic modules, 113 user I/O, and a 3.3V core supply in a 144-pin TQFP (LQFP-144) surface-mount package. An FPGA (Field-Programmable Gate Array) is a semiconductor device containing a fabric of programmable logic blocks and interconnects that designers configure to implement custom digital circuits. Within the programmable-logic hierarchy, the A54SX32 sits in the high-performance, one-time-programmable (OTP) segment: FPGA -> programmable logic device -> application-specific digital IC. Unlike SRAM FPGAs, its antifuse architecture retains its configuration permanently, requires no external configuration PROM, and powers up instantly with no configuration delay. Key features of the A54SX32-TQG144 include the SX family's sea-of-modules architecture, which delivers gate-level performance far above typical SRAM FPGAs of its era; 100% fillable logic fabric with 2880 C-cells and R-cells for combinational and sequential logic; and 113 user I/O distributed around the 144-lead thin quad flat package. The antifuse interconnect adds very low routing capacitance, supporting high clock rates and low dynamic power consumption. Technically, the device is manufactured on a CMOS process with metal-to-metal antifuse elements programmed at the factory-test stage or during board-level programming. Because the configuration is hard-wired, the part offers inherent resistance to bit-stream interception and radiation-induced configuration upsets, which is why the SX family is widely used in military and aerospace designs. Typical applications include high-speed glue logic integration, bus interfacing, coprocessor acceleration, telecom line-card control, and defense electronics that demand instant-on, secure, single-chip logic integration. A key design consideration is that antifuse devices are one-time programmable: there is no in-system reconfiguration, so designers must verify logic thoroughly before programming and keep spare routing capacity for engineering changes. This page adds distributor availability context, same-package drop-in alternatives, and practical design guidance not found in the manufacturer datasheet.