FPGA & CPLD
Products (6358)
A54SX16P-1TQG176 - 24K Gate SX FPGA 147 I/O TQFP-176 | Microchip
The Microchip Technology (Microsemi) A54SX16P-1TQG176 is a 24K-system-gate SX-family FPGA with 1452 logic cells (924 cells), 147 user I/O, a maximum clock frequency of 280 MHz, and 0.35 um CMOS process technology, housed in a 176-pin TQFP (LQFP) surface-mount package. The lead-free 'G' suffix in the part number denotes RoHS-friendly Pb-free assembly. An FPGA (Field-Programmable Gate Array) is a semiconductor device containing a fabric of configurable logic blocks and programmable interconnects that the designer programs after manufacturing, sitting between fixed-function ASICs and microprocessors in the programmable-logic hierarchy. FPGAs allow hardware-level parallelism and design iteration without fabrication costs, making them ideal for glue logic, protocol bridging, and control-plane functions. The SX family from Microsemi (now Microchip) uses a sea-of-modules architecture that simplifies design capture, reduces cost and power, and shortens time to market for performance-intensive applications. Key features of the A54SX16P include the 'P' enhanced-speed process option delivering up to 280 MHz toggle performance, dual 3.3V and 5V supply capability supporting 5V-tolerant legacy I/O systems, 1452 logic cells of usable capacity, and 147 user I/O pins in the compact 24 x 24 mm TQFP-176 footprint. The -1 speed grade denotes the standard-speed commercial bin; the -2 grade offers a higher 320 MHz maximum frequency for the same die. Technically, the SX sea-of-modules fabric organizes logic into compact modules with dedicated fast carry chains and local routing, achieving deterministic timing close to that of one-time-programmable antifuse architectures while retaining SRAM-like reprogrammability for prototyping workflows. Design entry is supported by Microchip Libero SoC design suite, which performs synthesis, place-and-route, and timing analysis against the -1 speed grade library. Typical applications include industrial control and motor-interface glue logic, legacy 5V system bridging and bus interfacing, telecommunications line-card control logic, and military/aerospace support electronics where the SX family's proven reliability is valued. A key design consideration: at 3.3V/5V dual-supply operation, ensure power-rail sequencing and check I/O standards supported per bank before finalizing pin assignment in Libero, since TQFP-176 pin re-assignment after layout is costly. This page synthesizes distributor inventory data, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.
A54SX16P-1TQG176I - 16K Gate SX FPGA, 280MHz, TQFP-176 | Microchip
The Microchip Technology (Microsemi) A54SX16P-1TQG176I is a CMOS field programmable gate array (FPGA) from the SX family offering 16,000 equivalent system gates, 924 logic cells, 1452 configurable logic blocks (CLBs), and 147 user I/O pins, with a maximum clock frequency of 280 MHz in a 176-pin TQFP (24x24 mm) 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 in the field to implement custom digital circuits. Within the product hierarchy, the SX family sits under antifuse-based FPGAs, which themselves belong to the broader class of programmable logic devices (PLDs) alongside CPLDs and ASICs. The SX family uses a sea-of-modules architecture that simplifies design, reduces power consumption, and shortens time to market for performance-intensive applications. Key features of this device include the 0.35 um CMOS process technology, a 3.3V nominal supply voltage (3.0V to 3.6V operating range) with 5V-tolerant operation, the -1 industrial speed grade, and an industrial operating temperature range indicated by the I suffix, making it suitable for harsh-environment deployments. Technically, the A54SX16P delivers high-speed combinational and registered logic in a deterministic antifuse architecture, which provides fixed, known interconnect delays after programming - an advantage over SRAM FPGAs for timing-critical designs. Antifuse programming is also non-volatile and inherently more resistant to configuration upsets than SRAM-based fabrics. Typical applications include industrial control and automation, telecommunications and datacommunications line cards, aerospace and defense subsystems, test equipment glue logic, and bus bridging where 280 MHz registered performance and 147 flexible I/O are required. Design consideration: the antifuse fabric is one-time programmable - verify your design thoroughly in simulation and with engineering silicon before committing to production programming, and budget supply voltage decoupling for the 3.3V rail. This page synthesizes distributor availability, drop-in same-package family alternatives, pricing tiers, and practical design notes not found in the manufacturer datasheet, providing engineers with a single citable reference for the A54SX16P-1TQG176I.
A54SX16P-1VQG100 - 16K Gate FPGA 280MHz 100-VQFP | Microchip
The Microchip Technology (Microsemi/Actel) A54SX16P-1VQG100 is a 16,000-gate antifuse CMOS field-programmable gate array (FPGA) from the SX family, delivering up to 280 MHz system performance with 81 user I/Os in a 100-pin VQFP (VQG100) surface-mount package operating at 3.3V or 5V. An FPGA is a programmable logic device whose interconnect and logic functions are configured by the designer rather than fixed at silicon fabrication. Within the programmable logic hierarchy (FPGA -> programmable logic device -> digital IC -> semiconductor), the SX family is distinctive because it uses antifuse one-time-programmable (OTP) technology instead of SRAM configuration. A sea-of-modules architecture provides dedicated routing resources that yield deterministic, ASIC-like timing with no configuration-loading time at power-up. Key features include approximately 16,000 system gates organized in 1452 configurable logic blocks (924 logic cells per distributor listings), a maximum toggle-rate-backed clock frequency of 280 MHz for the -1 speed grade, and 0.35 um CMOS process technology. The dual 3.3V/5V supply support simplifies integration into legacy 5V industrial systems, while antifuse programming gives inherent resistance to configuration readback and radiation-induced configuration upset compared with SRAM FPGAs. Architecturally, the sea-of-modules structure means logic and routing scale together, so performance does not degrade as utilization rises - a common weakness of channel-routed SRAM FPGA architectures. Combined with OTP security, this makes SX devices a long-standing choice in aerospace, defense, and industrial control designs. Typical applications include industrial automation and motor control glue logic, communications protocol bridging, aerospace/defense control functions, and migration of obsolete ASIC or gate-array designs where a one-time-programmed, non-volatile solution is preferred. Design consideration: because the device is one-time programmable, thoroughly complete place-and-route and functional simulation before programming; verify supply sequencing between the 3.3V core/IO domains on the 100-pin VQFP package. This page synthesizes distributor pricing tiers, same-package drop-in speed/temperature grade alternatives, and practical design notes not consolidated in the manufacturer datasheet. Pricing shown as of 2026-09-03.
A54SX16P-1VQG100I - 16K Gate FPGA, 280MHz, VQFP-100 | Microsemi
The Microsemi (now Microchip Technology) A54SX16P-1VQG100I is a CMOS antifuse FPGA from the Actel SX family, delivering 16,000 equivalent system gates and 924 logic cells in a 100-pin VQFP (TQFP-100) surface-mount package with 81 user I/O. It operates at a maximum clock frequency of 280 MHz, supports 3.3V and 5V I/O operation, and is rated for the industrial temperature range of -40C to +85C, indicated by the I grade suffix. 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 - FPGA -> programmable logic device -> digital IC -> semiconductor - the Actel SX family is distinctive for its sea-of-modules architecture built on a one-time-programmable antifuse fabric, which means the configuration is retained permanently at power-up with no external configuration PROM required. Key features include the 0.35 um CMOS antifuse process technology, a maximum toggle rate of 280 MHz suited to performance-intensive designs, and dual 3.3V/5V I/O voltage support that simplifies integration into legacy 5V industrial systems. The -1 speed grade defines the timing derating for this ordering code, while the P suffix in the SX16P variant denotes the enhanced process option of the SX family. Architecturally, the sea-of-modules structure eliminates the segmented routing delays typical of SRAM FPGA architectures, yielding deterministic, short interconnect delays that make timing closure predictable. With 1,452 modules of logic capacity, designers can integrate glue logic, state machines, bus interfaces, and high-speed control functions that would otherwise require multiple discrete devices, reducing board area, BOM cost, and power consumption. Typical applications include industrial automation and motor control interfaces, aerospace and defense subsystem logic, communications bridge logic, and obsolescence-management redesigns where a one-time-programmable, instant-on FPGA is preferred over SRAM-based devices. The 5V-tolerant I/O capability makes it particularly attractive for retrofit into existing 5V backplane systems. A key design consideration: antifuse FPGAs are one-time programmable, so functional changes require a new device - verify your design thoroughly in simulation and, where possible, using the same family in a larger package before committing to production programming. This page synthesizes verified distributor pricing, drop-in family alternatives, engineering design notes, and lifecycle context not consolidated in the manufacturer datasheet.
A54SX16P-1VQG100M - 16K Gate FPGA, 100-TQFP | Microchip
The Microchip Technology (Microsemi) A54SX16P-1VQG100M is a 16,000-gate Actel SX-family antifuse FPGA with 924 logic cells, 81 user I/O, and a maximum toggle/clock performance of 240 MHz, housed in a 100-pin VQFP (TQFP) surface-mount package. The -1 speed grade and -M military-grade temperature suffix mark this device for extended-temperature, high-reliability applications such as defense and aerospace systems. An FPGA (Field-Programmable Gate Array) is a semiconductor device that implements custom digital logic through programmable interconnect and logic blocks. Within the programmable-logic hierarchy, the SX family sits in the one-time-programmable (OTP) antifuse category, a lineage that runs FPGA -> antifuse FPGA -> programmable logic IC -> semiconductor. Unlike SRAM-based FPGAs, antifuse devices retain their configuration permanently and are immune to configuration-bitstream upset, which is a key reason they persist in radiation- and security-sensitive programs. Key features of the A54SX16P include the sea-of-modules architecture that Microsemi credits with simplifying design time and reducing power consumption, mixed 3.3 V and 5 V supply operation for legacy-interface compatibility, and 0.35 um CMOS technology with a two-dimensional flexible routing structure. The 81 available I/O support mixed-voltage interfacing in a compact 100-lead body with 0.5 mm lead pitch. Technically, the device provides 1452 CLB-equivalent modules mapped to roughly 16,000 system gates and 924 usable cells. The -1 speed grade supports clock rates up to the 240 MHz class documented for the family, adequate for glue logic, bus bridging, and control-path designs. The antifuse fabric means the design is programmed once via Actel/Microchip programming hardware and cannot be reconfigured in-system. Typical applications include military avionics and ground-system control logic, secure industrial controllers, bridge and bus-interface logic between 5 V legacy systems and 3.3 V subsystems, and replacements for obsolete ASIC or PAL/GAL glue logic in long-lifecycle programs. Design consideration: antifuse FPGAs are one-time programmable, so functional verification and programming-yield planning are essential before committing hardware; design changes require new devices. This page synthesizes distributor stock data, drop-in family alternatives, and practical design notes not consolidated in the manufacturer datasheet.
A54SX16P-2PQG208 - SX FPGA 24K Gates 175 I/O | Microchip
The Microchip Technology A54SX16P-2PQG208 is an SX-family field programmable gate array (FPGA) with 24,000 system gates, 175 user I/O, and up to 320 MHz system performance, housed in a 208-pin BFQFP/PQFP package with 0.50 mm terminal pitch (28 x 28 x 3.4 mm body). An FPGA (field programmable gate array) is a semiconductor device containing a fabric of configurable logic blocks (CLBs) and programmable interconnects that the designer programs after manufacturing. FPGAs sit within the broader hierarchy of programmable logic devices (PLDs), above CPLDs and SPLDs in density, and are used to implement custom digital logic without the cost and lead time of an ASIC. Key features of the A54SX16P-2PQG208 include its sea-of-modules architecture, which delivers performance and integration levels that Actel (now Microchip) stated were unmatched by other FPGA architectures at launch, 1452 configurable logic modules, and a CMOS process for low power consumption. The -2 speed grade supports clock frequencies up to 320 MHz, making the device suitable for performance-intensive glueless logic integration. Technically, the SX family uses a sea-of-modules architecture rather than the traditional island-style LUT fabric. Each module is a compact logic element that can implement combinatorial or sequential functions with predictable routing delays, simplifying timing closure. The 'P' suffix denotes the standard commercial temperature/processing variant; the '2' is the speed grade; and PQG208 identifies the 208-lead quad flatpack. Typical applications include industrial control and automation, telecommunications and networking line-card logic, high-speed bus bridging, test and measurement instrumentation, and military/aerospace system logic where one-time-programmable antifuse-style reliability and low power were historically valued. When designing with this device, verify the 208-pin PQFP thermal and electrical constraints, use proper decoupling on all VCC/VPP pins, and note that the design is programmed via the Actel/Microchip Libero design flow. Because PQFP lead pitch is 0.50 mm, careful PCB land-pattern control is required. This page synthesizes distributor pricing, drop-in same-family alternatives, design notes, and FAQ content not found in a single manufacturer datasheet page.
A54SX16P-2PQG208I - 24K-Gate SX FPGA 208-PQFP | Microchip
The Microchip Technology (Microsemi/Actel) A54SX16P-2PQG208I is a 24,000-system-gate SX family FPGA with 16,000 equivalent gates, 1452 Logic Array Blocks, 175 user I/O, a maximum clock frequency of 320 MHz, and combinatorial delays down to 0.7 ns, housed in a 208-pin plastic quad flat pack (PQFP/BFQFP) with a 0.50 mm terminal pitch. 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 post-manufacture. Within the programmable logic hierarchy, the device sits at: logic module -> Logic Array Block (LAB) -> sea-of-modules FPGA fabric -> programmable logic IC. FPGAs replace fixed-function ASICs and ASSPs where flexibility, low NRE cost, and fast time to market matter. Key features of the A54SX16P-2PQG208I include the SX sea-of-modules architecture that simplifies design capture, antifuse-style one-time-programmable configuration for high design security and no configuration-loading time, dual voltage rail operation from 3.0 V to 3.6 V, and industrial temperature range operation (-40C, the I suffix). The -2 speed grade delivers the fastest timing drive strength within the family. Technically, the device is a CMOS FPGA in the A54SX16 series. The 1452 LABs provide usable capacity for glue logic, bus interfacing, state machines, and moderate datapath functions. With a 0.7 ns combinatorial delay and 320 MHz clocking capability, the fabric supports demanding synchronous designs typical of industrial control and communications equipment. Typical applications include industrial control systems, cloud-computing and server infrastructure boards, communications and networking line cards, and test equipment, where the 175 user I/O accommodate wide parallel buses and multiple interface standards. A key design consideration is that SX family devices are one-time-programmable: prototype thoroughly in simulation, and reserve a spare socket footprint or board respin path, because bitstream revision cycles like SRAM FPGAs are not possible. This page synthesizes distributor stock data, same-family drop-in options, and practical design notes not consolidated in the manufacturer datasheet. Pricing shown is an estimate pending live distributor confirmation as of 2026-09-03.
A54SX16P-2TQG144 - 24K Gate SX FPGA, 113 I/O | Microsemi
The Microsemi A54SX16P-2TQG144 is an SX-family Field Programmable Gate Array (FPGA) offering 24,000 system gates (16,000 typical gates with 924 logic cells) and 113 user I/O pins in a 144-pin LQFP (TQFP, 20x20 mm) surface-mount package. It operates from dual supply rails of 3V to 3.6V (core) and 4.75V to 5.25V (I/O) and supports system speeds up to 320 MHz on 0.35 um CMOS process technology, with the speed grade '-2' denoting the faster commercial timing bin. An FPGA (Field Programmable Gate Array) is a semiconductor device containing a fabric of configurable logic blocks (CLBs), programmable interconnect, and user-programmable I/O that designers configure after manufacturing. Within the programmable logic hierarchy, the SX family sits among antifuse-based, high-speed, one-time-programmable FPGAs positioned above simple CPLDs and below large scale-of-integration families such as RTAX, making it suited for performance-intensive glueless logic integration. Key features include the sea-of-modules architecture that simplifies timing-driven design, dual 3.3V/5V supply operation for interfacing with 5V legacy systems, and deterministic antifuse interconnect that delivers predictable routing delays - a significant advantage over SRAM FPGAs where routing delay varies with placement. The 113 available user I/O within the 144-pin TQFP provides a strong I/O-to-logic ratio for bus-intensive designs. Technically, the SX family uses a 0.35 um antifuse CMOS process whose proprietary metal-to-metal antifuse elements are programmed once at power-up configuration, making the device non-volatile, secure against readback, and immune to configuration-bit upsets - attributes valued in industrial and defense-adjacent systems. Typical applications include industrial control and automation logic, telecommunications line-card glue logic, 5V-tolerant bus bridging, test and measurement instrumentation, and obsolescence-driven redesigns replacing multiple TTL/PLD devices. When designing with this device, verify that the 5.25V maximum I/O rail tolerance and one-time-programmable (OTP) workflow fit your production model, since design changes require new devices rather than reconfiguration. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet.
A54SX16P-2TQG144I - SX FPGA 16K Gates 113 I/O | Microsemi
The Microsemi (now Microchip Technology) A54SX16P-2TQG144I is an SX-family Field Programmable Gate Array (FPGA) with up to 24,000 system gates, 113 programmable I/O pins, and up to 320 MHz toggle performance, housed in a 144-pin TQFP (20x20 mm) package. The -2 speed grade and industrial (-I) temperature rating make it suited for harsh-environment embedded logic. An FPGA (Field-Programmable Gate Array) is a semiconductor device containing configurable logic blocks and programmable interconnects that the designer wires together after manufacturing. Within the programmable logic hierarchy, the device sits as FPGA -> programmable logic IC -> logic IC -> digital semiconductor. Unlike flash- or SRAM-based FPGAs, the Actel SX family uses antifuse programming technology, which is one-time programmable (OTP) and retains its configuration permanently, making it inherently resistant to configuration corruption from radiation or power glitches. Key features of the A54SX16P-2TQG144I include a sea-of-modules architecture delivering high gate utilization and fast interconnect, dual supply operation with a core/I-O split of 3.0V to 3.6V and 4.75V to 5.25V, and 5V-tolerant I/O compatibility valuable for legacy mixed-voltage systems. The 0.35 um process technology supports clock rates up to approximately 320 MHz for counter and register paths. The SX architecture uses a sea-of-modules fabric with C-cells (combinational) and R-cells (sequential) to provide deterministic, low-skew routing without the segmented interconnect delays of coarse-grained FPGAs, enabling predictable timing closure on first pass. Typical applications include industrial control logic, glue logic consolidation, aerospace and defense subsystems, telecommunications line cards, and legacy system re-engineering where 5V-tolerant I/O and OTP security matter. The industrial temperature range (-40C to +85C) suits factory automation and outdoor equipment. Design consideration: because antifuse FPGAs are one-time programmable, fully verify your design in simulation and on a companion device (the low-cost A54SX08 family) before programming production units. This page synthesizes distributor stock data, same-footprint alternatives, and practical design notes not found in the manufacturer datasheet.
A54SX16P-2TQG176 - 16K Gate SX FPGA 320MHz 147 I/O | Microchip
The Microchip Technology (Microsemi) A54SX16P-2TQG176 is an SX-family antifuse FPGA with 16,000 system gates (24K system gate density per Mouser listing), 147 user I/O, a maximum clock frequency of 320 MHz, and a 176-pin TQFP (LQFP-176) surface-mount package. An FPGA (Field-Programmable Gate Array) is a semiconductor device that implements configurable logic blocks (CLBs) interconnected by programmable routing, allowing designers to build custom digital circuits without fabricating an ASIC. Within the programmable logic hierarchy, the device sits as FPGA -> programmable logic IC -> logic IC -> digital semiconductor. The SX family uses a sea-of-modules architecture built on 0.35 um CMOS technology, a topology Microchip states delivers device performance and integration levels not achieved by other FPGA architectures of its generation. Key features include 1452 configurable logic modules, a dual 3.3V/5V supply architecture, and a -2 speed grade supporting toggle rates up to 320 MHz. The antifuse programming technology is non-volatile and radiation-tolerant by nature, providing instant-on operation with no configuration PROM and inherently higher resistance to configuration upset than SRAM-based FPGAs. Architecturally, the sea-of-modules structure shortens routing delays and enables deterministic timing, which is why the SX family targets performance-intensive applications such as bus bridging, state machines, and high-speed glue logic. The 5V-tolerant I/O structure of the P variant eases interfacing with legacy 5V systems. Typical applications include industrial automation control, telecommunications line cards, test and measurement boards, and legacy avionics or military system sustainment where 5V compatibility and instant-on logic are required. A key design consideration is that antifuse devices are one-time programmable: the design must be frozen before assembly, so budget for rework and socketed prototyping during development. This page synthesizes distributor availability data, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet, with pricing references as of 2026-09-03.
A54SX16P-2TQG176I - 16K Gate SX FPGA 320MHz TQFP-176 | Microchip
The Microchip Technology (Microsemi) A54SX16P-2TQG176I is an SX-family Field Programmable Gate Array (FPGA) offering 16,000 system gates (24K system gates per Mouser categorization), 924 logic cells, and a maximum toggle rate of 320 MHz, housed in a 176-pin TQFP (TQG176) surface-mount package with 147 user I/O pins. It operates from a 3.0V to 3.6V supply (3.3V nominal, 5V-tolerant I/O) and is rated for the industrial temperature range denoted by the I suffix. An FPGA is a reconfigurable semiconductor device whose logic function is defined at design time rather than fixed at fabrication. Within the digital logic hierarchy, the FPGA sits above fixed-function ASICs and ASSPs: it belongs to the programmable logic family, alongside CPLDs and programmable SoCs, and is a core building block of embedded system and power management architectures. Key features of the A54SX16P include the SX sea-of-modules architecture, which simplifies timing-driven design, reduces design cost and power consumption, and shortens time to market for performance-intensive applications. The device provides 1452 LABs/CLBs of configurable logic, 0.35 um CMOS process technology, and speed grade -2, balancing performance and cost. The P-suffix variant supports antifuse-based one-time programmability, delivering design security and radiation-tolerant behavior valued in industrial and aerospace-derived systems. Technically, the SX family uses a sea-of-modules structure with dedicated registers and carry logic for arithmetic, achieving predictable interconnect delays. The 320 MHz maximum clock frequency and 147 programmable I/O make it suitable for glue logic consolidation, bus interfacing, protocol bridging, and control state machines in embedded systems. Industrial-grade (I) temperature rating supports extended-environment deployments. Typical applications include industrial automation control, communications and networking interface bridging, and military/aerospace-derived or high-reliability industrial systems where one-time-programmable antifuse security matters. A key design consideration: antifuse FPGAs are one-time programmable, so designers must fully validate the bitstream before programming production units, and Libero SoC design software from Microchip is required for synthesis and place-and-route. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.
A54SX16P-2VQG100I - 16K Gate SX FPGA, 320MHz, TQFP-100 | Microsemi
The Microsemi (Actel, now Microchip Technology) A54SX16P-2VQG100I is a 16,000-gate antifuse field-programmable gate array (FPGA) from the SX family, with 924 logic modules, up to 81 user I/O, a -2 speed grade supporting system clock rates up to 320 MHz, packaged in a 100-pin VQFP/TQFP surface-mount enclosure and rated for the industrial temperature range (-40C to +85C). An antifuse FPGA is a type of one-time-programmable (OTP) field-programmable gate array in which programmable interconnect elements are formed by amorphous silicon antifuse links. Unlike SRAM-based FPGAs, an antifuse device retains its configuration permanently with no external boot flash, no configuration time at power-up, and inherent resistance to readout - making the family a hierarchy ancestor of modern one-time-programmable, security-focused programmable logic within the broader power-management and logic-IC ecosystem. Key features include the 0.35 um CMOS sea-of-modules architecture, dual 3.3V/5V I/O compatibility for mixed-voltage board designs, and 1452 configurable logic building blocks organized for high routing efficiency. The SX family delivers ASIC-like gate utilization and deterministic timing that simplify design closure in performance-intensive applications. Technical depth: the SX sea-of-modules architecture replaces the channel routing of conventional FPGAs with a dense sea of C-cells (combinational) and S-cells (sequential), giving short, predictable interconnect delays. The -2 speed grade in the VQG100 package supports a 320 MHz maximum toggle/system clock rate, and the antifuse interconnect adds negligible parasitic capacitance compared with pass-transistor-based SRAM routing, which is the primary source of the family's speed advantage. Typical applications include glue-logic consolidation and ASIC prototype reduction in industrial control, high-speed bus bridging and interface translation in communications equipment, and secure, instant-on control logic in avionics-adjacent and defense-adjacent industrial systems where non-volatile, configuration-readout-resistant logic is preferred. Design consideration: because the device is one-time-programmable, verify the design exhaustively in simulation and - where possible - in a lower-cost equivalent package before committing programming; there is no field re-work path. This page synthesizes distributor sourcing data, same-family drop-in speed-grade and temperature-range alternatives, and practical design notes not found in the manufacturer datasheet.
A54SX16P-PQ208I - 24K Gate SX FPGA, 175 I/O, PQ208 | Microchip
The Microchip Technology A54SX16P-PQ208I is an SX-family Field Programmable Gate Array (FPGA) with 24,000 system gates (16,000 typical usable per series literature, 24,000 gates per distributor listings), 1,452 configurable logic blocks (CLBs), 175 user I/O pins, and 320 MHz internal performance, housed in a 208-pin fine-pitch QFP (208-BFQFP / 208-PQFP, 28x28 mm, 0.5 mm terminal pitch) package. An FPGA (Field-Programmable Gate Array) is a semiconductor device containing a fabric of programmable logic blocks and interconnects that the designer configures after manufacturing. Within the hierarchy of programmable logic, the SX family sits as a high-performance, antifuse-based FPGA beneath larger families such as Microchip (Actel) ProASIC and RTAX, and complements CPLDs where higher gate counts and registered performance are needed. Key features of the A54SX16P include 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 - specifications that enabled single-chip 66 MHz PCI integration. The P-suffix variant supports 3.3 V core operation with 5.0 V-tolerant inputs, simplifying mixed-voltage board designs. The sea-of-modules architecture achieves 100% resource utilization with 100% pin locking, reducing design iterations. Technically, the SX family uses a sea-of-modules architecture that simplifies timing closure and enables deterministic routing. The dual supply support (3V to 3.6V core and 4.75V to 5.25V I/O domains on P variants) bridges legacy 5V systems with 3.3V logic. The antifuse-based programming retains configuration through power cycles without an external configuration device. Typical applications include 66 MHz PCI bus interfaces, industrial control backplanes, telecommunications line cards, and legacy military/aerospace designs requiring 5V-tolerant I/O. The industrial temperature grade (I suffix, -40C to +85C TA) suits harsh environments. Design consideration: as this part is a mature/legacy device, verify current supply availability and consider design migration planning; the antifuse fabric is one-time-programmable, so plan in-system retest strategy accordingly. This page synthesizes distributor pricing and availability data, drop-in same-package alternatives, and practical design notes not consolidated in the manufacturer datasheet.
A54SX16P-PQG208 - 16K Gate SX FPGA 240MHz PQFP-208 | Microchip
The Microchip Technology (Actel) A54SX16P-PQG208 is a 16,000-gate (24K system gates) SX-family antifuse FPGA built on 0.35 um CMOS process, delivering a maximum system clock frequency of 240 MHz and 175 user I/O in a 208-terminal Plastic Quad Flatpack (PQFP) package with 0.5 mm terminal pitch. An FPGA (Field-Programmable Gate Array) is a type of programmable logic IC that allows designers to implement custom digital circuits after manufacturing. The SX family uses Actel's pioneering antifuse programmable interconnect, a one-time-programmable technology at the root of the FPGA taxonomy (FPGA -> programmable logic device -> digital IC). Antifuse devices retain their configuration permanently, are inherently resistant to configuration readback, and require no external configuration PROM, unlike SRAM-based FPGAs. Key features of the A54SX16P include Actel's sea-of-modules architecture with 1452 logic modules, dual-supply operation supporting 3.3V core/5V-tolerant I/O rails (3.0V-3.6V core, 4.75V-5.25V I/O), and deterministic pin-to-pin timing enabled by the segmented routing fabric. The device provides 924 logic cells and supports a maximum clock frequency of 240 MHz, making it suitable for performance-intensive glueless integration. The sea-of-modules architecture places C-cells (combinational) and R-cells (sequential) in a dense array with short, low-capacitance routing segments, giving the A54SX16P predictable delays and high gate utilization. This yields performance comparable to much larger SRAM FPGAs while consuming significantly less static power, since antifuse interconnect draws no static configuration current. Typical applications include industrial automation controllers, communication and networking interface logic, embedded system glue logic and bus bridging, aerospace/defense control logic (where nonvolatile one-time programming is valued), and test-and-measurement instrumentation. The 175 I/O count and dual voltage support make it a strong fit for legacy 5V and 3.3V mixed-rail board designs. When designing with the A54SX16P, note that antifuse programming is one-time only: functional changes require a new device, so design freezes and thorough simulation in Libero/Microchip design tools are essential. The 208-pin PQFP requires attention to signal-integrity practices for high-speed clock distribution. This page synthesizes distributor pricing, drop-in alternative MPNs across speed grades and temperature grades, and practical design notes not found in the manufacturer datasheet, providing procurement and engineering teams a single reference for sourcing decisions.
A54SX16P-PQG208I - SX FPGA 16K Gates 208-PQFP | Microchip
The Microchip Technology (Microsemi) A54SX16P-PQG208I is a member of the SX family of field programmable gate arrays (FPGAs) featuring 16,000 system gates, 924 logic cells, 175 user I/O, and internal performance up to 240 MHz, housed in a 208-pin PQFP (BFQFP) package with industrial temperature range support (-40C to +85C). An FPGA (field programmable gate array) is a reprogrammable semiconductor device that implements digital logic through a matrix of configurable logic blocks and programmable interconnects. Within the programmable logic hierarchy, the FPGA sits above SPLDs and CPLDs, offering higher gate counts and register-rich architectures suitable for glue logic integration, bus interfacing, and state-machine control in embedded systems. The SX family uses a sea-of-modules architecture built on a 0.35 um CMOS process. This register-dense fabric allows 100% resource utilization with 100% pin locking, simplifying timing closure and PCB design. The A54SX16P operates from a single 3.3V supply with 5V-tolerant I/O, easing integration into legacy 5V bus systems such as PCI-compliant designs. Technically, the device provides fast pin-to-clock performance with low clock skew, enabling single-chip integration of functions that previously required multiple CPLDs or ASSPs. The 'P' variant of the SX family offers enhanced I/O capabilities, and the PQG208 industrial-grade suffix (I) guarantees operation across -40C to +85C, critical for industrial and communications equipment exposed to wide ambient swings. Typical applications include industrial automation controllers, telecommunications line cards, test and measurement instrumentation, and military/aerospace legacy system sustainment, where the anti-fuse-class reliability of the SX architecture and 5V-tolerant I/O are decisive selection factors. A key design consideration: as an antifuse/one-time-programmable class FPGA family, the SX series is programmed at programming stations rather than reconfigured in-system, so design iteration requires new programmed devices. Verify programming file compatibility with your programmer before procurement. This page synthesizes distributor stock data, drop-in package-compatible variants, and practical design notes not found in the manufacturer datasheet, with pricing as of 2026-09-03.
A54SX16P-PQG208M - SX-A FPGA 24K Gates 208-PQFP | Microchip
The Microchip Technology A54SX16P-PQG208M is an SX-A family Field Programmable Gate Array (FPGA) offering 24,000 system gates (16K gates, 924 logic cells) with 175 user I/O pins, a maximum toggle rate of 240 MHz, and a 208-pin PQFP (BFQFP) gull-wing package. Fabricated on a 0.35 um CMOS process, it operates from a 3.3 V or 5 V supply across a military temperature range of -55C to +125C. 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 SX-A sits between low-density CPLDs and high-density system-on-chip FPGAs, belonging to the broader class of programmable logic devices (PLDs) and semiconductors. The SX-A family uses Actel's antifuse-based sea-of-modules architecture, which delivers one-time-programmable, non-volatile, and radiation-tolerant configuration with no external boot memory required. Key features include the sea-of-modules architecture with C-cells and S-cells for fast combinational and registered logic, deterministic pin-to-pin delays, and 100% FPGA design security because the programmed interconnect is invisible to readback. The antifuse technology eliminates configuration loading time and provides inherent resistance to configuration bitstream theft or corruption, a notable differentiator versus SRAM-based FPGAs from Xilinx and Intel (Altera). The 0.35 um process yields high reliability and low power consumption for its class, while the dual 3.3 V / 5 V I/O capability simplifies interfacing with legacy 5 V industrial and military logic systems. Maximum system frequency reaches 240 MHz on internal paths, supporting performance-intensive control and data-path functions. Typical applications include military and aerospace embedded control, industrial automation, bridge logic between mixed-voltage subsystems, communication protocol glue logic, and ASIC prototyping where one-time programmability is acceptable. A key design consideration: antifuse FPGAs are one-time programmable, so any design change requires a new device; budgets for rework should reflect this. Power supply design must accommodate both 3.3 V core-capable and 5 V tolerant interfacing scenarios as appropriate. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design guidance not consolidated in the manufacturer datasheet.
A54SX16P-TQG144 - 16K-Gate SX FPGA, 240MHz, TQFP-144 | Microsemi
The Microsemi (Microchip Technology) A54SX16P-TQG144 is a 16,000-gate antifuse FPGA from the SX family, delivering 924 logic modules, 113 user I/O, and up to 240 MHz system performance in a 144-pin TQFP (20x20 mm, 0.5 mm pitch) surface-mount package. It operates from dual supply rails of 3.3V (3.0V to 3.6V) and 5V (4.75V to 5.25V) on a 0.35 um process. 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 selected antifuse links. Unlike SRAM-based FPGAs from Xilinx or Altera, antifuse devices retain their configuration without any external boot memory, and their interconnect resistance and capacitance are lower, which historically gave the Actel SX family class-leading routing speed and security against design extraction. Key features include the sea-of-modules architecture with two module types (combinatorial C-modules and sequential S-modules), 16K system gates, and a guaranteed 240 MHz toggle-rate-class performance that suits state machines, glue logic integration, and high-speed control paths. The 113 available I/O in the TQFP-144 footprint provides generous pin-out flexibility for bus interfaces. Technically, the SX family uses a sea-of-modules fabric in which every module is surrounded by routing channels, simplifying place-and-route and shortening critical paths. The dual 3.3V/5V supply scheme allows direct interfacing with legacy 5V TTL systems while keeping core power low. Because configuration is stored in antifuse elements, startup is essentially immediate with no configuration download, improving system reliability and boot time versus SRAM FPGAs. Typical applications include industrial control and automation, bridge and interface logic in telecom and networking equipment, 5V legacy system integration, aerospace and defense control electronics, and medical instrumentation where one-time programmability and instant-on behavior are valued. When designing with this device, verify both supply rails meet the specified 3V to 3.6V and 4.75V to 5.25V windows, and confirm the commercial (0C to +70C, non-I suffix) temperature grade matches your environment; the -I suffix parts extend to industrial range. Remember the device is one-time programmable, so functional simulation in Libero/Designer software is essential before programming. This page synthesizes distributor pricing, same-footprint drop-in variants, and practical design notes not found in the manufacturer datasheet.
A54SX16P-TQG144I - 16K Gates SX FPGA 144-TQFP | Microsemi
The Microsemi (now Microchip Technology) A54SX16P-TQG144I is an SX-family field programmable gate array (FPGA) offering 16,000 gates with 924 logic cells, up to 240 MHz system performance, and 113 user I/O pins, housed in a 144-pin TQFP (20x20 mm) package built on a 0.35 um CMOS process with dual 3.3V/5V supply operation. An FPGA (field programmable gate array) is a semiconductor device containing a fabric of configurable logic blocks (CLBs) and programmable interconnects that the designer configures after manufacturing, sitting within the broader hierarchy of programmable logic alongside CPLDs, structured ASICs, and ASSPs. The SX 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 A54SX16P include dual-rail operation (core supply 3V to 3.6V and 4.75V to 5.25V per distributor data), industrial temperature range of -40C to +85C (the I suffix), and 113 user-programmable I/O. The 0.35 um antifuse-style process family delivers deterministic routing with low jitter, well suited to glue logic replacement, bus interfacing, and control-plane functions. The PQ (performance) speed variant targets the 240 MHz class of the SX family per Jotrin listing data. The SX architecture organizes logic into logic array blocks (LABs/CLBs), with Microchip USA reporting 1452 logic modules for this density class and 113 user I/O in the 144-TQFP. Programming is one-time, giving design security advantages over SRAM FPGAs - the bitstream cannot be read back - which historically made SX devices popular in military, aerospace, and industrial designs where IP protection matters. Typical applications include legacy industrial control systems, telecommunications line-card glue logic, embedded bus bridging, and aerospace/defense sub-systems where the design is already qualified and an exact-form-fit-function replacement is required. The industrial -40C to +85C rating supports harsh-environment deployments. Design consideration: because SX devices are one-time programmable, reserve spare logic margin (target under 80% utilization) and validate timing at corner temperature before programming; the commercial (no-I) A54SX16P-TQG144 cannot substitute in an industrial -40C to +85C application. This page synthesizes distributor listings, verified specifications, drop-in same-package alternatives, and practical design guidance not found in the manufacturer datasheet, helping engineers source and qualify this mature Microsemi/Microchip FPGA.
A54SX16P-TQG176 - SX FPGA 16K Gates TQFP-176 | Microchip
The Microchip Technology (Microsemi) A54SX16P-TQG176 is a CMOS Field Programmable Gate Array (FPGA) from the SX-A family, delivering approximately 16,000 to 24,000 usable system gates with up to 147 user I/Os in a 176-terminal TQFP (PQFP, JESD-30 code S-PQFP-G176) surface-mount package. An FPGA (Field Programmable Gate Array) is a semiconductor device containing configurable logic blocks (CLBs) and programmable interconnects that designers configure in the field, sitting above discrete logic and below ASICs in the programmable-logic hierarchy. Unlike fixed-function ASICs, FPGAs allow iterative design, lower non-recurring engineering costs, and faster time to market. The SX-A family uses a sea-of-modules architecture that simplifies design, reduces power consumption, and shortens development cycles for performance-intensive applications. Key features of the A54SX16P-TQG176 include its sea-of-modules routing architecture, a maximum clock frequency of up to 320 MHz for the fastest speed grade (the base -standard grade is rated at 240 MHz per Jotrin listing), dual supply compatibility of 3.3V and 5V I/O operation with a 3.0V to 3.6V core supply range on P-variants, and 1452 Configurable Logic Blocks (logic cells). The 0.35 um CMOS process provides a proven, mature manufacturing platform. Technically, the device implements antifuse-free, SRAM/flash-style configuration through Actel/Microsemi's SX-A programmed routing fabric, offering non-volatile-like design flow via Actel Libero/Designer toolchain support. The 176-pin TQFP with 0.5 mm pin pitch suits hand-inspectable, reflow-solderable designs. Typical applications include industrial control logic, glueless bus interfacing, telecommunications line cards, test equipment state machines, and avionics/defense systems requiring mature, radiation-tolerant-family heritage parts. Design consideration: verify I/O bank voltage compatibility (3.3V vs 5V tolerant requirements) before finalizing schematics, and budget power dissipation using the Microsemi SX-A power calculator. This page synthesizes distributor pricing data, drop-in same-family speed-grade alternatives, and practical design notes not found in the manufacturer datasheet, with pricing as of 2026-09-03.
A54SX16P-TQG176I - 16K Gate FPGA 240MHz TQFP-176 | Microchip
The Microchip Technology (Microsemi) A54SX16P-TQG176I is a 16,000-gate SX-family Field Programmable Gate Array (FPGA) with 924 logic cells, 147 user I/O, and a maximum toggle rate of 240 MHz, fabricated on a 0.35 um CMOS process and housed in a 176-pin TQFP surface-mount package. It operates from dual 3.3V and 5V supply rails, a key advantage for mixed-voltage legacy system integration. An FPGA (Field Programmable Gate Array) is a semiconductor device containing a fabric of configurable logic blocks (CLBs) and programmable interconnects that the designer programs after manufacturing. Within the programmable logic hierarchy, the SX family sits among antifuse-based, one-time-programmable FPGAs, which contrasts with SRAM-based FPGAs that require configuration storage. The SX family uses a sea-of-modules architecture that simplifies design implementation, reduces design cost and power consumption, and shortens time to market for performance-intensive applications. Key features include 16K usable gates with 924 logic cells, up to 147 programmable I/O pins supporting both 3.3V and 5V signaling, and a 240 MHz maximum system toggle frequency made possible by the 0.35 um process and the fast, predictable antifuse interconnect structure. Because configuration is stored in antifuse elements, the device is immune to configuration-stream corruption, a meaningful reliability benefit in harsh or long-lifetime systems. Architecturally, the A54SX16P organizes logic into 1452 Configurable Logic Blocks arranged in the sea-of-modules fabric, with routing implemented through metal-to-metal antifuse links that add minimal RC delay. This yields deterministic, timing-driven performance that design tools can predict accurately without re-configuration overhead. Typical applications include industrial control and automation, aerospace and defense glue logic and co-processing, telecommunications line-card functions, and legacy 5V system bridging, where the 3.3V/5V mixed-supply capability and industrial temperature range are decisive. When designing with this device, note that antifuse programming is permanent: verify the design in simulation and, if possible, validate on a companion SRAM-family device before committing. Power distribution and decoupling on both VCC rails should follow Microchip/Microsemi application guidance. This page synthesizes distributor availability, drop-in speed-grade and temperature-grade alternatives, and practical design notes not consolidated in the manufacturer datasheet. Pricing shown is as of 2026-09-03.
A54SX16P-VQ100 - 16K Gate SX FPGA, 81 I/O, TQFP-100 | Microchip
The Microchip Technology (Microsemi) A54SX16P-VQ100 is an SX-family antifuse FPGA delivering 16,000 equivalent system gates (24,000 raw gates) with 1,452 Configurable Logic Blocks and 81 user I/O pins, housed in a 100-pin VQFP/TQFP (14x14 mm) surface-mount package. It supports dual voltage supplies operating from 3.0V to 3.6V and 4.75V to 5.25V, with a maximum clock frequency of 240 MHz and a commercial temperature range of 0C to +70C. 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 A54SX16P sits in the one-time-programmable antifuse FPGA class: FPGA -> antifuse FPGA -> programmable logic device (PLD) -> digital logic IC. Antifuse technology means the interconnect is permanently set at programming time, giving lower static power, higher immunity to configuration upset, and no external configuration memory requirement compared with SRAM FPGAs. Key features of the A54SX16P-VQ100 include the sea-of-modules architecture of the Actel SX family, which simplifies design timing closure and reduces power consumption; the 240 MHz system performance suited to performance-intensive applications; the 81 I/O count with a fine-pitch 100-terminal thin quad flat pack; and the dual-rail supply scheme that eases integration into mixed 5V and 3.3V board environments. Architecturally, the SX family uses a sea-of-modules fabric where each module is a compact combinational element combined with dedicated routing resources. This yields deterministic, short interconnect delays, which is why SX devices historically served high-speed glueless system integration, bus bridging, and state-machine logic where SRAM-FPGA configuration time and configuration-storage overhead were undesirable. Typical applications include industrial control and automation logic, telecommunications and networking line-card glue logic, military and avionics system controllers (the military-grade M suffix variant exists), and legacy system life-cycle replacement where the original design must be maintained without PCB redesign. When designing with the A54SX16P-VQ100, verify supply sequencing of the dual rails and confirm the antifuse programming flow (Silicon Sculptor programming hardware) before committing to volume; one-time-programmable devices do not allow in-system reconfiguration. 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.
A54SX16P-VQG100 - 16K Gate FPGA 240MHz 100-VQFP | Microchip
The Microchip Technology A54SX16P-VQG100 is a 16,000-gate Actel SX-family field-programmable gate array (FPGA) with 924 logic cells, 1452 CLB modules, and a maximum toggle rate of 240 MHz, fabricated on a 0.35 um CMOS process and housed in a 100-pin VQFP (VQG100) package with 81 user I/Os. 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 using a hardware description language. Within the product hierarchy, the A54SX16P sits under the Actel SX family of antifuse FPGAs, which descends from programmable logic devices to system-on-chip integration platforms. The SX family uses a sea-of-modules architecture that delivers high performance and integration while reducing design time, cost, and power consumption. Key features include the 16K system gate count, up to 240 MHz system performance enabled by the sea-of-modules routing fabric, 5V-tolerant mixed 3.3V/5V I/O operation, and 81 user-programmable I/O pins in the compact 100-lead VQFP. The antifuse-based fabric is non-volatile and inherently secure: configuration is fixed at programming time, requires no boot PROM, and resists readback attacks. Technically, the device is built on 0.35 um CMOS technology with the SX module architecture providing fine-grained combinational and sequential logic elements. Because the antifuse programming is one-time programmable (OTP), designs ship with permanent configuration, giving low static power and high resistance to configuration corruption compared with SRAM FPGAs. Typical applications include industrial control and automation logic, communications and networking glue logic, high-reliability system controllers, and military/aerospace subsystems where instant-on, non-volatile configuration and design security matter. When designing with this device, verify I/O bank voltage compatibility with neighboring components, since the mixed 3.3V/5V capability must be managed at the board level, and plan pin assignments early because the OTP fabric cannot be reconfigured after programming. This page synthesizes distributor availability, drop-in alternatives, and practical design guidance not found together in the manufacturer datasheet.
A54SX16P-VQG100I - 16K Gate FPGA, 240MHz, 3.3V | Microchip
The Microchip (Microsemi/Actel) A54SX16P-VQG100I is a 16,000-gate SX-family FPGA built on 0.35um CMOS technology, delivering up to 240 MHz system performance with 1,452 configurable logic modules (924 usable cells), 81 user I/O, and a 3.3V/5V-tolerant I/O interface, housed in a 100-pin VQFP (VQG100) surface-mount package with industrial temperature range (-40C to +85C, suffix I). A field-programmable gate array (FPGA) is a semiconductor device containing a fabric of configurable logic blocks (CLBs) and programmable interconnects that the designer configures after manufacturing, sitting within the programmable logic hierarchy between CPLDs and large system-on-chip FPGAs. The SX family uses Actel's sea-of-modules architecture combined with antifuse one-time-programmable (OTP) technology, which simplifies design time, reduces power consumption, and provides inherent resistance to configuration corruption from radiation or power cycling - no external configuration ROM is required. Key features include a 240 MHz toggle rate enabled by the 0.35um process, 16K usable gates for mid-density glue logic, state machines and bus interfacing, and dual 3.3V/5V I/O compatibility for bridging legacy 5V systems with modern 3.3V logic. The antifuse fabric also offers low static power and zero configuration-load time at power-up, a distinct advantage over SRAM FPGAs. Technically, the device's sea-of-modules architecture provides predictable routing delays, beneficial for timing-critical designs. The 81 user I/O on the 100-pin VQFP give a 0.5 mm-pitch, 14x14 mm-class footprint suitable for compact industrial boards. Typical applications include industrial glue logic and bus bridging, military/avionics systems where OTP configuration integrity matters, telecommunications line cards, and legacy design sustainment for discontinued SRAM FPGA platforms. Design consideration: because the SX family is one-time programmable, verify the design thoroughly in simulation before programming; there is no in-system reconfiguration. This page synthesizes distributor availability data, the Microchip product page, EOL lifecycle notifications, and drop-in same-package alternatives not found in the manufacturer datasheet.
A54SX16P-VQG100M - 16K Gate SX FPGA 240MHz VQFP-100 | Microchip
The Microchip (Microsemi) A54SX16P-VQG100M is a 16,000-gate SX-family FPGA (Field Programmable Gate Array) with 924 logic cells, up to 240 MHz system performance, 81 user I/Os, and dual 3.3V/5V supply operation, housed in a 100-pin VQFP (VQG100) surface-mount package. It is a lead-free (M-suffix) variant of the Actel SX antifuse FPGA family. An FPGA is a reconfigurable (in this case, one-time-programmable antifuse) integrated circuit that implements custom digital logic through a sea of programmable modules. Within the semiconductor hierarchy, the A54SX16P belongs to the Actel SX family, under the FPGA product class, within the programmable logic / application-specific IC domain. The SX family's sea-of-modules architecture delivers gate-level ASIC-like performance without NRE costs or mask charges. Key features include a 0.35um process technology, system frequencies up to 240 MHz, 81 user-programmable I/O pins supporting 3.3V and 5V signaling, and antifuse interconnect that is inherently non-volatile and highly secure against design extraction. Because configuration is stored in antifuse elements rather than SRAM, the device is live at power-up with no external boot memory, reducing board cost and improving system reliability. The SX architecture uses a sea-of-modules routing fabric that minimizes interconnect delay, enabling dramatic reductions in design time, power consumption, and time to market for performance-intensive applications such as glue logic consolidation, bus interface bridging, and high-speed state machines. Typical applications include industrial control systems, communications and networking line cards, avionics and military subsystems requiring secure one-time programming, and high-speed protocol bridging where 240 MHz-class performance is required. Design consideration: the A54SX16P is one-time programmable; validate the design thoroughly in simulation and, if possible, on a higher-density SX-A SRAM-family prototype before committing to production programming. This page synthesizes distributor pricing context, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet.