FPGA & CPLD
Produtos (6666)
A54SX16-VQG100I - 24K-Gate SX FPGA, 81 I/O, TQFP-100 | Microsemi
The Microsemi (Microchip) A54SX16-VQG100I is a 24,000-gate SX-family field programmable gate array (FPGA) with 924 logic cells, 81 configurable user I/O pins, and a 240 MHz system toggle rate, housed in a 100-pin VQFP/TQFP (14x14 mm) surface-mount package. It operates from dual supply rails of 3V to 3.6V and 4.75V to 5.25V and is rated for the industrial temperature range denoted by the I suffix. An FPGA (field programmable gate array) is a reprogrammable logic device that implements custom digital circuits through a configuration bitstream rather than fixed mask-programmed silicon. Within the programmable-logic hierarchy, the SX family sits among Actel/Microsemi antifuse FPGAs, one-time programmable devices prized for instant-on operation, low power, and high resistance to configuration upset compared with SRAM FPGAs. Key features include 24,000 system gates organized in a sea-of-modules architecture, 924 logic cells (about 1452 logic array blocks per distributor listings), support for 3.3V and 5V interfacing through dual voltage rails, and 81 flexible I/O pins. The antifuse interconnect yields deterministic, low-jitter routing and eliminates boot-up configuration time, a significant advantage over SRAM-based competitors such as the Xilinx XC4003A family. Technically, the SX family uses a 0.35 um CMOS process with a two-module (C-cell and R-cell) fabric that balances combinational and sequential logic density, enabling effective clock rates up to 240 MHz. The 5V-tolerant I/O structure supports legacy 5V bus systems alongside 3.3V core logic, which is why this family remains popular in defense, industrial, and telecommunications designs. Typical applications include glue-logic consolidation, bus bridging in industrial automation, address decoding and control in military/aerospace subsystems, and co-processing in telecommunications line cards. The industrial-grade VQG100I option suits -40C to +85C environments. Design consideration: because antifuse FPGAs are one-time programmable, verify the design fully in simulation (and ideally in a comparable device) before programming production units; a design change requires a new device. This page adds distributor-verified specifications, drop-in same-package alternatives, comparison tables, and practical design notes not consolidated in the manufacturer datasheet.
A54SX16A-1PQG208 - 24K Gate SX-A FPGA, 175 I/O | Microchip
The Microchip Technology A54SX16A-1PQG208 (originally Actel/Microsemi) is an SX-A family antifuse FPGA with 24,000 system gates, 1452 logic cells (CLBs), 175 user I/O, and a maximum toggle frequency of 263 MHz, housed in a 208-pin BFQFP (PQFP-208) package with 0.5 mm lead pitch. It operates from a 2.25V to 5.25V supply and supports a speed grade -1 with a 1.2 ns fast input setup time. An FPGA (Field-Programmable Gate Array) is a semiconductor device containing a fabric of programmable logic blocks and interconnects that designers configure after manufacturing. Within the FPGA hierarchy, the SX-A sits in the antifuse, one-time-programmable (OTP) category: unlike SRAM FPGAs, it retains its configuration permanently, requires no external configuration ROM, and is inherently more resistant to bit-flip and bitstream-readback attacks. Key features include the sea-of-modules architecture delivering ASIC-like performance, deterministic routing delays for timing closure, low static power typical of antifuse CMOS, and 175 programmable I/O supporting 5V-tolerant signaling. The combination of 24K gates and 263 MHz toggle rate suits glue logic consolidation, bus bridging, state machines, and high-speed control paths that would otherwise require multiple SPLDs or an ASIC. Technically, the device is built on a CMOS process with 1452 combination logic modules (CLBs) organized as sea-of-modules, achieving gate utilization levels near ASIC density. Antifuse programming provides permanent interconnect with negligible series resistance, contributing to speed and reliability. The -1 speed grade denotes the standard commercial timing grade of the SX-A family. Typical applications include industrial control and automation, telecommunications line cards, military/aerospace legacy systems, and embedded glue logic for microprocessor systems, where single-chip integration lowers BOM cost and board area. Design consideration: because the device is OTP, verify your logic thoroughly in simulation and, where practical, prototype on an in-system-programmable part of the family before committing the antifuse array. This page adds value beyond the manufacturer datasheet by consolidating distributor pricing tiers, pin-compatible same-package alternates, and drop-in replacement guidance for obsolescence-prone legacy designs.
A54SX16A-1PQG208I - 24K Gate Antifuse FPGA 208-PQFP | Microchip
The Microchip Technology (formerly Actel/Microsemi) A54SX16A-1PQG208I is a 24,000-system-gate antifuse FPGA from the SX-A family, offering 1,452 logic cells (CLBs), a maximum toggle-rate performance of approximately 263 MHz, 175 user I/Os, and a 208-pin Plastic Quad Flat Package (PQFP) in industrial temperature grade (-40C to +85C). An antifuse FPGA is a one-time-programmable (OTP) programmable logic device whose interconnect switches are formed by an antifuse element that permanently shorts when programmed. Within the programmable logic hierarchy, the SX-A sits in the FPGA category (field programmable gate array -> programmable logic device -> semiconductor), contrasting with SRAM-based FPGAs from Xilinx or Altera by requiring no configuration PROM, boot time, or configuration bitstream, which improves design security and power-on reliability. Key features include a sea-of-modules architecture built on a 0.25 um CMOS process, a 2.5V core supply for low power operation, and the -1 speed grade suitable for mid-range synchronous designs. The 175 user I/Os and 208-pin QFP footprint make the device well suited for glue logic consolidation, bus bridging, and control-plane functions that would otherwise require multiple discrete devices. Technical depth: the SX-A fabric combines C-cells (combinational) and R-cells (sequential) clustered in logic modules, delivering efficient flip-flop-heavy designs without the routing delays typical of larger SRAM FPGAs. The 1,452-cell array, per FindIC specifications (2007 datasheet publication), supports design entry in Verilog/VHDL via the Libero SoC toolchain. Typical applications include industrial automation control logic, avionics and defense systems requiring OTP security, telecommunications line-card glue logic, and obsolescence-driven redesigns replacing multiple 74-series devices. The industrial I grade extends operation to -40C to +85C for harsh environments. Design consideration: because the device is one-time programmable, fully verify the design in simulation before programming; there is no field re-work capability. This page synthesizes distributor pricing tiers, drop-in same-package alternatives, and practical design notes not consolidated in the manufacturer datasheet. Pricing shown is as of 2026-09-03.
A54SX16A-1PQG208M - 24K Gate Antifuse FPGA 208-PQFP | Microchip
The Microchip Technology A54SX16A-1PQG208M is an SX-A family antifuse FPGA (field-programmable gate array) offering 24,000 system gates, 175 user I/Os, and a -1 speed grade, housed in a 208-pin fine-pitch PQFP (BFQFP) surface-mount package. An FPGA is a programmable logic device that implements digital circuits by programming internal interconnects and logic modules. Within the programmable logic hierarchy, the A54SX16A belongs to the antifuse FPGA category: one-time programmable (OTP) devices in which each programmable interconnect is an amorphous silicon antifuse that permanently switches from high impedance to low resistance when programmed. Compared with SRAM-based FPGAs, antifuse FPGAs are non-volatile at power-up, resist readback and bitstream attacks, and consume far lower static power, making them a power management and security-friendly choice for glue logic integration. Key features include single-chip integration that replaces multiple discrete logic devices, support for 2.5 V, 3.3 V, and 5 V I/O signalling standards on 0.22 um / 0.25 um CMOS antifuse technology, and a low-power, high-performance fabric suitable for designs clocked at hundreds of megahertz (the SX16A family cell toggle rate is specified up to 263 MHz per distributor data). The -1 speed grade denotes the standard industrial speed bin of the SX-A family. The device architecture uses Actel's SX-A sea-of-modules fabric with clustered C-cells (combinational) and R-cells (sequential), connected through a segmented routing structure programmed by antifuse links. This yields deterministic, flip-flop-rich timing without configuration time at power-up. Typical applications include industrial control and automation glue logic, telecommunications and networking line-card functions, aerospace and defense designs requiring one-time-programmable security, and bridge/interface consolidation on microprocessor-based boards. Design consideration: because the antifuse is one-time programmable, prototype thoroughly in simulation (Libero/Microchip design flow) before programming production devices; there is no reprogramming fallback. This page adds distributor pricing context, same-brand drop-in alternatives, comparison tables, and design notes not found in the manufacturer datasheet. Pricing referenced below is as of 2026-09-03.
A54SX16A-1TQG100 - 16K Gate SX-A FPGA, 100-TQFP | Microchip
The Microchip Technology (Microsemi) A54SX16A-1TQG100 is an SX-A family antifuse FPGA offering approximately 16,000 typical gates (24,000 system gates) with 924 logic cells and 1,452 configurable logic blocks (CLBs), a maximum toggle frequency of 263 MHz, fabricated on a 0.25 um CMOS process at a 2.5V core supply, packaged in a 100-pin TQFP with 81 user I/Os. An FPGA (Field-Programmable Gate Array) is a semiconductor device containing configurable logic blocks and programmable interconnects that designers configure in the field to implement custom digital circuits. Within the programmable logic hierarchy, the A54SX16A sits in the antifuse one-time-programmable (OTP) FPGA category, positioned under programmable logic devices, distinct from SRAM-based FPGAs that require configuration storage. The Actel/Microsemi SX-A architecture uses a sea-of-modules structure delivering ASIC-like integration with low power and inherent security because the antifuse configuration cannot be read back. Key features include a 0.25 um antifuse CMOS process, 2.5V core operation with 2.25V to 2.75V supply tolerance, up to 263 MHz system performance in the -1 speed grade, 81 available user I/O, and single-chip integration of multiple glue-logic functions that reduces board cost and power. The SX-A family emphasizes performance, security, and low power at a low per-gate premium. Architecturally, each CLB provides combinatorial and sequential capability with fast local routing, and dedicated high-speed carry chains support arithmetic functions. The combinatorial CLB delay of the related A54SX16A-1TQG100A variant is specified with a maximum toggle of 278 MHz, indicating the family headroom across speed grades. Typical applications include industrial control and automation glue logic, communications and networking interface bridging, military/aerospace upgrade boards where OTP security is valued, and obsolescence-driven ASIC or CPLD consolidation designs. When designing with this device, plan for one-time programming: verify the design fully in simulation before programming, since antifuse parts cannot be reconfigured in-system. Power estimates should account for both static and dynamic terms using the manufacturer's tools. This page synthesizes distributor pricing (Mouser, DigiKey, Octopart), same-package drop-in alternatives, and design guidance not consolidated in the manufacturer datasheet.
A54SX16A-1TQG100I - 24K Gate FPGA 81 I/O TQFP-100 | Microchip
The Microchip Technology (formerly Actel/Microsemi) A54SX16A-1TQG100I is an SX-A family antifuse FPGA with 24,000 system gates (approximately 16,000 typical gates), 1452 configurable logic blocks (CLBs), 81 user I/Os, and a toggle rate of 263 MHz, built on a 0.25 um CMOS process with a 2.5V core supply in a 100-pin TQFP package. The industrial temperature grade (-40C to +85C) and lead-free, RoHS-compliant construction suit it for harsh-environment embedded systems. An FPGA (Field-Programmable Gate Array) is a semiconductor device containing a fabric of configurable logic blocks and programmable interconnects that designers configure to implement custom digital circuits. Within the programmable logic hierarchy, the SX-A sits in the one-time-programmable (OTP) antifuse FPGA category, positioned below flash-based and SRAM-based FPGAs but offering superior security and instant-on behavior. The sea-of-modules architecture of the SX family simplifies design migration and reduces power consumption relative to SRAM FPGAs. Key differentiating features include the antifuse fabric, which is non-volatile, requires no configuration PROM, and resists bit-stream extraction, making designs exceptionally hard to clone. The -1 speed grade supports clock rates up to 263 MHz toggle, and the 2.5V core delivers low static power compared with older 3.3V-generation FPGAs. The 100-lead TQFP (1.4 mm height) provides a cost-effective, hand-assembly-friendly surface-mount footprint. The SX-A architecture organizes logic into C-cells and R-cells with dedicated fast carry chains and a segmented routing matrix, enabling efficient datapath, state-machine, and glue-logic implementations. Because configuration is stored in antifuses, the device powers up instantly with no boot latency, and there is no external configuration flash to corrupt. Typical applications include industrial automation control, aerospace and defense subsystems, bridge/protocol conversion, bus interface bridging, and replacing multiple ASIC/MSI glue-logic chips in a low-cost single-chip solution. A key design consideration: antifuse FPGAs are one-time programmable, so prototype thoroughly in simulation; choose speed grade and package with future upgrades in mind since the same TQG100 footprint accommodates other SX-A family members. This page synthesizes distributor pricing, drop-in family alternatives, and practical design guidance not found in the manufacturer datasheet.
A54SX16A-1TQG100M - SX-A FPGA 24K Gates 81 I/O | Microchip
The Microchip Technology A54SX16A-1TQG100M is an SX-A family antifuse FPGA offering 24,000 system gates (16K gates, 924 cells), 81 user I/O, and toggle rates up to 263 MHz, fabricated on a 0.25 um process and housed in a 100-pin TQFP (LQFP-100) package with 0.5 mm pitch. It operates from a single 2.5 V supply with internal access times as fast as 1.2 ns. 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. Within the programmable logic hierarchy, the SX-A sits in the one-time-programmable (OTP) antifuse FPGA category, positioned below SRAM-based FPGAs in reconfigurability but above them in security, power, and cost for many volume applications. Key features of the A54SX16A-1TQG100M include the low-cost antifuse architecture that is inherently non-volatile and resistant to bit-stream extraction, a 24K system-gate capacity suitable for glue logic consolidation, state machines, bus interfaces, and control functions, 81 flexible user I/O supporting multiple I/O standards, and typical toggle frequencies up to 263 MHz. The -1 speed grade balances performance with cost, and the M suffix denotes commercial temperature-range tray packaging. Technically, the SX-A family uses a 0.25 um antifuse process in which each programmable connection is a permanently-blown amorphous silicon link. This yields very low static power, no configuration PROM requirement, and no configuration time at power-up. Because the programming pattern is destroyed during programming, reverse engineering of the design is extremely difficult compared with SRAM FPGAs. Typical applications include industrial control and automation boards, telecommunications line cards, test and measurement instrumentation, defense upgrades of legacy designs, and single-chip integration of multiple discrete logic devices to reduce board area and BOM cost. Design consideration: antifuse FPGAs are one-time programmable, so design the RTL for finality and verify thoroughly in simulation before committing silicon; also note the 2.5 V core supply requires a dedicated regulator on mixed-voltage boards. This page synthesizes verified distributor data, drop-in family alternatives, design notes, and commercial information not consolidated in the manufacturer datasheet.
A54SX16A-1TQG144 - 24K-Gate Antifuse FPGA TQFP-144 | Microchip
The Microchip Technology (Microsemi/Actel) A54SX16A-1TQG144 is a 24,000-system-gate antifuse FPGA from the SX-A family with 1452 logic cells, 113 user I/O, and 263 MHz system performance, housed in a 144-pin TQFP (TQG144) surface-mount package. An antifuse FPGA is a type of field-programmable gate array in which programmable interconnect elements are one-time-programmable antifuse links. Unlike SRAM-based FPGAs, an antifuse device retains its configuration permanently, requires no external boot configuration memory, powers up instantly with its full function active, and is inherently resistant to configuration readback attacks. Within the programmable logic hierarchy, the A54SX16A sits in the mid-density segment of the SX-A family between the A54SX08A (8K gates) and A54SX32A (32K gates), and belongs to the broader category of one-time-programmable programmable logic devices. Key features of the A54SX16A-1TQG144 include a sea-of-modules architecture with a fine-grained C-cell/R-cell logic module structure that delivers deterministic timing, performance up to 263 MHz, and a wide core supply range of 2.25V to 5.25V. The device uses a 0.25 um CMOS process and offers roughly 16,000 typical usable gates for design implementation out of the 24,000 equivalent system gates. The SX-A architecture integrates combinational and sequential logic in dedicated modules, enabling designers to consolidate glue logic, bus interfaces, state machines, and control functions into a single low-cost chip. Because the programming antifuses are permanently set at the factory programming stage, the device offers high design security, low static power, and no configuration latency - key advantages over SRAM FPGAs for cost- and security-sensitive systems. Typical applications include industrial control and automation, communication and networking interface bridging, military and aerospace systems requiring secure one-time-programmable logic, and replacement of multiple discrete TTL/CMOS glue-logic devices on legacy board designs. A key design consideration is that the device is one-time-programmable: once programmed, the antifuse configuration cannot be changed, so design verification must be completed before committing to production programming. The TQFP-144 package with 1.4 mm height suits standard reflow assembly. This page synthesizes distributor pricing, speed-grade and package-family alternatives, and practical design notes not found in the manufacturer datasheet.
A54SX16A-1TQG144I - 16K Gate FPGA, TQFP-144 | Microchip
The Microchip Technology (Microsemi/Actel) A54SX16A-1TQG144I is a 16K-gate antifuse FPGA from the SX-A family, offering 924 logic cells, up to 263 MHz system performance, 113 user I/O, and a 2.5V core supply in a 144-pin TQFP package with industrial temperature rating (-40C to +85C). A field-programmable gate array (FPGA) is a semiconductor device containing a fabric of configurable logic blocks (CLBs) and programmable interconnects that engineers configure after manufacturing. Within the programmable logic hierarchy, FPGAs sit alongside CPLDs as logic-implementation devices, and the SX-A family uses antifuse (Actel) programming technology, which is one-time programmable but inherently non-volatile and more secure against bitstream readback than SRAM-based FPGAs. Key features of the A54SX16A-1TQG144I include 24,000 system gates on a 0.25 um CMOS process, pin-to-pin routing architecture with no dedicated routing delays, and a speed grade -1 with toggle rates to 263 MHz. The antifuse fabric provides flip-flops with fast setup times and low routing parasitics, delivering ASIC-like performance at FPGA economics. Supplying 113 user I/O in TQFP-144 makes it well suited for glue logic consolidation, bus interfacing, and state-machine replacement. The SX-A architecture integrates multiple discrete logic functions into a single low-cost chip, decreasing the performance premium while providing security and low power benefits, according to the Microchip product page. The 0.25 um technology and 2.5V core keep static power low, while the one-time-programmable antifuse removes the need for configuration ROM and eliminates configuration-time vulnerability. Typical applications include industrial control, aviation and military subsystems requiring configuration security, communications bridging, and legacy ASIC prototyping or low-volume production where masking costs are prohibitive. Designers should note that antifuse devices are one-time programmable: prototype thoroughly with the manufacturer design tools before committing, and verify I/O bank voltage compatibility with 3.3V peripheral logic. This page synthesizes distributor pricing, same-footprint alternatives, and practical design notes not found in the manufacturer datasheet, based on verified web data as of 2026-09-03.
A54SX16A-1TQG144M - 16K Gate 2.5V FPGA 144-TQFP | Microchip
The Microchip Technology (Microsemi/Actel) A54SX16A-1TQG144M is an SX-A family antifuse FPGA offering 16,000 raw gates (up to 24,000 system gates), 924 logic modules, and 111 user I/O in a 144-pin TQFP surface-mount package. Fabricated on a 0.25 um process and operating from a 2.5 V core supply, it supports toggle rates up to 263 MHz with a -1 standard speed grade. A field-programmable gate array (FPGA) is an integrated circuit that engineers configure after manufacturing to implement custom digital logic. Within the programmable logic hierarchy (FPGA -> programmable logic device -> digital logic IC -> semiconductor), the A54SX16A belongs to the one-time-programmable (OTP) antifuse category, distinct from SRAM-based FPGAs from Xilinx or Altera because its configuration is stored physically in antifuse elements rather than volatile memory cells. Key features include non-volatile, radiation-tolerant-heritage antifuse interconnect that removes the need for an external configuration PROM, instantaneous power-on operation, low static power typical of antifuse architectures, and secure design IP because the programmed netlist cannot be read back. The 111 user I/O support common 3.3 V and 2.5 V interface standards for board-level connectivity. Architecturally, the SX-A family uses a sea-of-modules fabric with combinational and sequential logic modules (C-cells and R-cells) connected through a hierarchical routing structure. This yields predictable, ASIC-like timing after place-and-route, an advantage over SRAM FPGAs for gluing logic, state machines, and bus-interface functions that must meet fixed timing budgets. Typical applications include industrial control and automation, communications and networking line cards, aerospace and defense systems where configuration volatility is unacceptable, medical instrumentation, and legacy ASIC replacement or system integration of multiple discrete logic devices into one low-cost single-chip solution. Design consideration: because the device is one-time programmable, verify the design thoroughly in simulation before programming and reserve spare I/O and logic margin for late changes; the -1 speed grade and 263 MHz maximum toggle rate bound achievable clock frequencies. This page synthesizes distributor pricing, same-package drop-in alternatives, design notes, and comparison data not found in the manufacturer datasheet alone.
A54SX16A-2PQG208 - 24K Gate Antifuse FPGA, 208-PQFP | Microchip
The Microchip Technology A54SX16A-2PQG208 is a 24,000-system-gate antifuse FPGA from the SX-A family, offering 1452 logic cells (CLBs), a toggle frequency of up to 294 MHz, and 175 user I/Os, housed in a 208-pin plastic quad flat pack (PQFP-208) package. An FPGA (Field-Programmable Gate Array) is a semiconductor device containing a matrix of configurable logic blocks interconnected by programmable fabric, allowing designers to implement custom digital circuits after manufacturing. Within the programmable logic hierarchy, the SX-A family belongs to the one-time-programmable (OTP) antifuse category, sitting alongside SRAM-based and flash-based FPGAs as a power-management and integration solution in embedded systems. Key features include 0.22 um / 0.25 um CMOS antifuse technology for low power and high security, support for 2.5 V, 3.3 V, and 5 V I/O standards, and a speed grade of -2. Because antifuse interconnects are permanently set at programming time, the device offers non-volatile configuration with no external boot flash, low static power consumption, and strong resistance to design theft compared with SRAM FPGAs. The SX-A architecture uses a sea-of-modules fabric with C-cells and R-cells that combine combinatorial and sequential logic efficiently, achieving high utilization and fast predictable routing. Typical system speeds of approximately 100-250 MHz are attainable for common designs, with the 294 MHz figure representing the maximum toggle rate of the logic fabric. Typical applications include industrial control, military and aerospace glue logic, bus interfacing, protocol bridging, and single-chip integration of ASIC prototypes where cost, security, and low power matter more than reprogrammability. Designers should note that the device is one-time programmable: the design must be fully verified before programming, and design changes require a new device. Adequate power supply decoupling and careful I/O bank voltage planning are essential. This page synthesizes distributor pricing context, drop-in alternatives, pinout guidance, and practical design notes not found in the manufacturer datasheet alone.
A54SX16A-2PQG208I - 24k-Gate Antifuse FPGA, PQFP-208 | Microchip
The Microchip Technology (Microsemi) A54SX16A-2PQG208I is an antifuse FPGA from the SX-A family providing approximately 24,000 system gates (14,520 logic cells / 1,452 CLBs), up to 175 user I/Os, and a maximum toggle frequency of 294 MHz, housed in a 208-pin plastic QFP (PQFP-208 / QFP-208) package for industrial temperature ranges. A field-programmable gate array (FPGA) is a semiconductor device containing configurable logic blocks (CLBs) and programmable interconnects that the designer wires together after manufacturing. Unlike SRAM FPGAs, the SX-A family uses antifuse programming technology: one-time programmable connections that retain configuration through power cycles, need no external configuration memory, and offer inherent resistance to bit-stream readback, making them a subcategory of non-volatile, single-chip programmable logic within the broader power/space/defense-oriented FPGA hierarchy. Key features include 1,452 CLBs of logic capacity, 175 user-input/output pins in the 208-BFQFP footprint, a 294 MHz maximum system frequency, CMOS low-power operation, and RoHS-compliant lead-free plastic packaging. The '-2' speed grade and the 'I' industrial temperature suffix distinguish this member from commercial (-C) and standard speed (-1) variants. Technically, the SX-A architecture combines a sea-of-modules logic fabric with high-speed, low-skew routing resources. The antifuse interconnect adds near-zero programming overhead to routing delay, giving deterministic timing that simplifies closure in glue-logic, bus-interface, and state-machine designs. Because configuration is permanent, designs are secure against cloning and do not require a boot PROM, reducing board cost and turn-on failure modes. Typical applications include industrial control glue logic, legacy aerospace/defense board refresh, communications bridge logic, and single-chip integration of multiple discrete ASSP/PLD functions to cut BOM cost, exactly the system-wide savings Microchip promotes for SX-A devices. A key design consideration: antifuse FPGAs are one-time programmable. Verify the design fully in simulation and, ideally, in a comparable device before committing the flight/production unit, and confirm I/O banking voltages against the SX-A family datasheet. This page synthesizes verified distributor data, drop-in same-footprint alternatives, pricing context, and practical design notes beyond what the manufacturer datasheet alone provides.
A54SX16A-2TQ100P - 24K Gate SX-A FPGA TQFP-100 | Microchip
The Microchip Technology (Actel/Microsemi) A54SX16A-2TQ100P is a 24,000-gate SX-A family antifuse FPGA with 1452 logic cells, 81 user I/O pins, and a maximum toggle frequency of 294 MHz, housed in a 100-pin TQFP (PQFP-100, 14x14 mm, 0.50 mm pitch) surface-mount package. The -2 speed grade and the P commercial temperature suffix make this part suited to cost-sensitive high-volume designs. An antifuse FPGA is a field-programmable gate array whose interconnect is permanently programmed by blowing microscopic antifuse links at power-up configuration. Unlike SRAM-based FPGAs from Xilinx or Altera, antifuse devices such as the SX-A family need no external configuration memory, offer inherent resistance to configuration corruption, and exhibit lower static power - placing them in the broader hierarchy of programmable logic within the semiconductor and power-management system ecosystem. Key features include the sea-of-modules architecture built from R-cells (register cells) and C-cells (combinatorial cells), a 2.5V CMOS core fabricated on a 0.25um/0.22um process, operation from a nominal 2.5V supply with the documented 2.25V to 5.25V I/O supply range cited by Microchip USA, and single-chip integration that removes external boot flash. The 81 available user I/O deliver broad pinout flexibility in the compact 14x14 mm TQFP-100 body. Architecturally, the SX-A device floor is covered with a grid of logic modules virtually free of routing overhead, giving predictable timing. Cluster and direct interconnect routing minimizes delay, and the -2 speed grade supports clock rates approaching 294 MHz as reported by distributor datasheet listings, with the M automotive-style variant listed up to 313 MHz. Typical applications include glue-logic consolidation, bus interface bridging, industrial control sequencing, and aerospace/military designs that exploit the antifuse family's radiation-tolerant heritage and security advantages. Design consideration: antifuse programming is one-time and irreversible - fully verify the design in simulation before programming production devices, and budget the required ACT/Silicon Sculptor programmer access. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
A54SX16A-2TQG100 - 24K Gate SX-A FPGA 81 I/O TQFP-100 | Microchip
The Microchip Technology A54SX16A-2TQG100 is a 24,000-system-gate antifuse FPGA from the SX-A family, offering 1452 logic cells (modules), 81 user I/O, a -2 speed grade with toggle rates up to approximately 294 MHz, and a 100-pin TQFP (PQFP100) surface-mount package with 1.4 mm height. A field-programmable gate array (FPGA) is a type of programmable logic device that implements custom digital circuits through a fabric of configurable logic blocks (CLBs) and programmable interconnect. Unlike SRAM-based FPGAs, the SX-A family uses antifuse programmable interconnect elements, which are one-time programmable and retain their configuration permanently. This places the SX-A in the hierarchy: FPGA -> programmable logic device -> digital logic IC -> semiconductor. Key features include 24K system gates (16K typical available gates), 81 user-programmable I/O with multiple standards support, a low-cost single-chip integration path that replaces multiple glue-logic devices, and a permanently programmed antifuse architecture that provides inherent design security - the configured bitstream cannot be read back. The -2 speed grade offers high clock rates suitable for state machines, bus interfaces, and control logic. Technically, the device is built on CMOS antifuse process technology with 0.22-micron-class geometry, operating from a nominal 2.5 V core supply (2.25 V to 2.75 V range per distributor data) over a commercial temperature range of 0 C to +70 C. The TQFP-100 footprint supports reflow soldering in standard SMT assembly lines. Typical applications include industrial control glue logic, communications bridging, legacy system re-engineering, and military/aerospace program sustainment where one-time-programmable, secure configuration is valued. Design consideration: because antifuse devices are one-time-programmable, always verify the design in simulation and, ideally, on a higher-density prototype part before committing production devices to programming. This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.
A54SX16A-2TQG100I - 24K Gate Antifuse FPGA 81 I/O | Microchip
The Microchip Technology A54SX16A-2TQG100I is a 24,000 system gate antifuse FPGA from the SX-A family, delivering 81 user I/Os and a maximum toggle rate of 294 MHz in a 100-pin TQFP (14x14 mm, TQG100) package rated for the industrial temperature range of -40C to +85C. An antifuse FPGA is a type of field-programmable gate array whose interconnects are permanently programmed at power-up by blowing on-chip antifuse links. Unlike SRAM-based FPGAs, antifuse devices are non-volatile, require no configuration PROM, offer inherent resistance to bit-stream reverse engineering, and draw no configuration power, making them a secure, low-power branch of the programmable logic taxonomy that sits alongside flash-based and SRAM-based FPGA architectures. Key features of the A54SX16A-2TQG100I include 1,452 configurable logic blocks (CLBs), a wide 2.25V to 5.25V supply voltage range supporting mixed-voltage systems, and the speed-grade -2 performance tier, which supports system toggle frequencies up to 294 MHz. The device is fabricated in CMOS, and the antifuse fabric provides deterministic interconnect delays that simplify timing closure in high-reliability designs. Architecturally, the SX-A family uses a sea-of-modules structure composed of logic modules and register cells surrounded by a horizontal and vertical routing channel mesh. The high routing capacity yields high routability and fast pin-to-pin delays. Because configuration is stored in antifuse elements rather than SRAM, the programmed design survives power cycling with zero startup latency and cannot be read back, an important security property for defense and industrial designs. Typical applications include industrial control and automation, glue-logic consolidation, bus interface bridging, secure military and avionics subsystems, and communication equipment where single-chip integration of multiple discrete functions lowers system cost. With 81 I/Os and 24K gates, this density point fits medium-complexity control and interface logic. When designing with this device, plan for one-time programmability: unlike SRAM FPGAs, the antifuse fabric cannot be reprogrammed, so exhaustively verify the design in simulation and on a reprogrammable prototyping path before committing production parts. The 2.25V to 5.25V supply window simplifies legacy 3.3V and 5V board integration. This page synthesizes distributor pricing, verified specifications, drop-in alternatives within the SX-A family, and practical design notes not found together in the manufacturer datasheet.
A54SX16A-2TQG144 - 24K Gate FPGA, 113 I/O, TQFP-144 | Microchip
The Microchip Technology A54SX16A-2TQG144 is a 24,000-gate SX-A family field programmable gate array (FPGA) delivering 1,452 configurable logic blocks (CLBs), 113 user I/O, and a maximum toggle rate of 294 MHz in a 144-pin TQFP package. An FPGA (Field Programmable Gate Array) is a semiconductor device containing a matrix of configurable logic blocks interconnected by programmable routing, allowing designers to implement custom digital circuits after manufacturing. Within the programmable logic hierarchy, the A54SX16A belongs to the sea-of-modules antifuse FPGA category: FPGA -> programmable logic IC -> CMOS digital IC. Microchip (formerly Microsemi, originally Actel) positions the SX-A family as a low-cost, single-chip integration platform. Key differentiating features include the 0.25 um CMOS antifuse technology, which makes configuration permanent and inherently resistant to configuration readback attacks, a single 2.5V supply (2.25V to 2.75V tolerance), speed grade -2 timing with typical combinatorial CLB delay around 1 ns, and non-volatile programming that eliminates the external boot flash and configuration bitstream required by SRAM FPGAs. The SX-A architecture arranges its 924 logic cells (1,452 CLBs) in a sea-of-modules fabric with dedicated routing resources, supporting both combinatorial and registered functions with clock frequencies approaching 294 MHz. Because the antifuse interconnect is programmed once at the factory-programmable stage or during board assembly, standby power is very low and there is no configuration uptime penalty at power-up. Typical applications include industrial control and automation glue logic consolidation, aerospace and defense designs requiring design security, telecommunications line-card support logic, and medical instrumentation control circuits. The 113 user I/O supports 2.5V and 3.3V-tolerant signaling common in these domains. Design consideration: antifuse FPGAs are one-time programmable; finalize the design and verify timing in simulation before committing devices, and budget for the programmer and programming socket during production planning. This page synthesizes distributor pricing (Mouser lists 60-piece pricing of $150.91 as of 2026-09-03), drop-in alternatives from the same TQFP-144 SX-A family, and practical design notes not consolidated in the manufacturer datasheet.
A54SX16A-2TQG144I - 24K Gate Antifuse FPGA, TQFP-144 | Microchip
The Microchip Technology (Microsemi) A54SX16A-2TQG144I is a 24,000-system-gate antifuse FPGA from the SX-A family, offering 1452 logic cells (CLB modules), 113 user I/O pins, and a toggle frequency of up to 294 MHz, housed in a 144-pin TQFP (TQG144) package with industrial temperature rating (-40C to +85C). An antifuse FPGA is a type of field-programmable gate array whose interconnects are permanently programmed at power-up programming time, rather than using SRAM configuration cells. Within the semiconductor hierarchy, the A54SX16A sits under FPGA -> antifuse FPGA -> programmable logic device (PLD) -> digital logic IC. Because antifuse configuration is non-volatile and immune to configuration readback, these devices are favored where instant-on operation, low power, and design security matter more than in-field reconfigurability. Key features include a sea-of-modules architecture for high gate utilization, 2.25V to 5.25V core operating range (per Microchip USA data for the SX-A 144-TQFP variant), speed grade -2 performance, and lead-free (TQG) RoHS-compliant packaging. The 20x20 mm TQFP-144 footprint with 0.5 mm pin pitch enables surface-mount assembly on standard PCB processes without the expense of fine-pitch BGA assembly. Technically, the SX-A family combines a high-performance module fabric with antifuse interconnect, delivering deterministic timing and low static power consumption. The -2 speed grade supports system toggle rates in the hundreds of MHz, sufficient for glue logic consolidation, bus bridging, state machines, and protocol interfacing in embedded systems. Typical applications include industrial control and automation, communications and networking line cards, aerospace and defense systems requiring configuration security, and legacy system life-extension where a single-chip replacement for multiple TTL/PLD devices reduces board area and cost. A key design consideration is that antifuse FPGAs are one-time programmable: exhaustively verify the design in simulation and, ideally, in a socketed or dev-board environment before committing production programming. Device-specific pin assignments must be cross-checked against the Microsemi/Microchip datasheet. This page synthesizes distributor pricing tiers, drop-in alternatives within the same TQFP-144 footprint, and practical design guidance not found in the manufacturer datasheet.
A54SX16A-FGG144I - 16K Gate Antifuse FPGA 144-BGA | Microchip
The Microchip (formerly Microsemi/Actel) A54SX16A-FGG144I is an SX-A family field programmable gate array (FPGA) with 16,000 system gates and 924 logic cells, operating at toggle rates up to 227 MHz in a 144-pin fine-pitch ball grid array (FPBGA, 13 mm x 13 mm) package. It runs from a single 2.25V to 5.25V supply and is rated for the industrial temperature range of -40C to +85C ambient. 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 product hierarchy, the A54SX16A sits under programmable logic -> FPGA -> one-time-programmable antifuse FPGA, distinct from SRAM FPGAs that need a configuration flash. Key features include 0.25 um antifuse CMOS technology that is non-volatile and inherently secure, support for 2.5V, 3.3V, and 5V I/O standards within the 2.25V-5.25V supply window, 111 usable user I/Os in the 144-LBGA, and the low power consumption typical of Actel SX-A sea-of-modules architecture. The antifuse fabric also gives low NRE cost and instant-on configuration at power-up. Technically, the SX-A uses a sea-of-modules architecture delivering performance and integration levels that simplified design time and reduced system cost and power for performance-intensive applications. The 227 MHz toggle capability made it popular for glue logic consolidation, bus bridging, and state machines in embedded controllers. Typical applications include industrial automation control, avionics and defense subsystems (the M-suffix military-temperature sibling confirms aerospace heritage), telecommunications line cards, and single-chip integration of multiple discrete logic devices to cut board cost. Design consideration: antifuse FPGAs are one-time programmable - the bitstream cannot be updated in the field, so freeze the verified netlist before ordering programming lots. This page adds value beyond the datasheet by synthesizing drop-in alternatives, pricing tiers, design notes, and FAQ answers in one engineer-oriented resource.
A54SX16A-FGG144M - 16K-Gate FPGA, 111 I/O, 144-FBGA | Microsemi
The Microsemi (Microchip) A54SX16A-FGG144M is an SX-A family antifuse FPGA with 16,000 typical gates (24,000 equivalent gates), 924 logic cells, 111 user I/Os, and up to 227 MHz system performance, housed in a 144-ball fine-pitch BGA (FBGA, 13x13 mm) package for surface mounting. 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. Within the programmable logic hierarchy, the SX-A family sits among one-time-programmable (OTP) antifuse FPGAs, positioned as low-cost, high-security, low-power single-chip integration devices that consolidate multiple system functions. Key features include 1452 configurable logic blocks, a maximum clock frequency of 172 MHz with combinatorial CLB delay as low as 1.8 ns, and 0.25 um CMOS technology. The antifuse interconnect is non-volatile and configuration-code immune, providing inherent design security that flash- or SRAM-based FPGAs cannot match without additional circuitry. Architecturally, the SX-A fabric combines dedicated flip-flops, carry-chain logic, and wide-decoding capability for state machines and counters. The 2.25V-to-5.25V supply tolerance per third-party listings (nominal 2.5V core) and low static power consumption suit battery-conscious and industrial designs. The commercial temperature grade (M suffix) covers standard 0C to +70C operating conditions. Typical applications include industrial control glue logic, bus interface bridging, secure communication equipment, and military/aerospace program-protected designs. Its 111 user I/Os support wide parallel buses in 5V-legacy-tolerant mixed systems. Design consideration: antifuse FPGAs are one-time-programmable; fully verify timing and functionality in simulation before programming, since a design change requires a new device. This page adds distributor pricing tiers, drop-in same-package alternatives, and design notes not found in the manufacturer datasheet.
A54SX16A-FTQG144 - 24K Gate SX-A FPGA, 113 I/O | Microchip
The Microchip Technology A54SX16A-FTQG144 is an SX-A family antifuse FPGA (field programmable gate array) offering 24,000 equivalent system gates, 1,452 logic cells (CLBs), 113 user I/O, and clock rates up to 167-172 MHz, housed in a 144-pin TQFP (LQFP) surface-mount package operating from 2.25 V to 2.75 V over the 0 C to +70 C commercial temperature range. An FPGA is a semiconductor device containing a matrix of configurable logic blocks (CLBs) interconnected by programmable interconnects; within the programmable logic hierarchy it sits as FPGA -> programmable logic IC -> logic IC -> semiconductor. Unlike SRAM-based FPGAs, the SX-A family uses antifuse technology, which is one-time programmable: the configuration becomes permanent after programming, delivering inherent resistance to design theft, radiation-induced configuration upsets, and instant-on operation without an external configuration memory device. Key features of the A54SX16A-FTQG144 include the antifuse fabric for non-volatile, secure single-chip integration, a 1.9 ns maximum combinatorial CLB delay (per Microchip USA data for this speed grade family), and a low-cost 144-lead TQFP footprint with 1.4 mm profile height. The device integrates multiple functions into a single low-cost chip, replacing glue logic, state machines, address decoders, and bus interfaces that would otherwise require several discrete devices. Technically, the SX-A architecture is built on a 0.22 um CMOS process with sea-of-modules routing, providing deterministic delays and high routability. The part is RoHS compliant and lead-free, supplied in tray packaging, and is programmed once via standard ACTEL/Microchip programmers such as FlashPro. Typical applications include industrial control, telecommunications line cards, military/aerospace子系统 requiring configuration security, and bridging or bus-interface logic. In industrial automation, its instant-on antifuse behavior eliminates boot time; in telecom, the 113 I/O support wide parallel buses at moderate clock rates. Design consideration: because antifuse FPGAs are one-time programmable, verify the design fully in simulation and, ideally, in an in-system debugging flow before committing to production programming; a design error requires a new physical device. This page synthesizes distributor pricing (Mouser, DigiKey, Octopart), same-package drop-in alternatives, and practical design notes not consolidated in the manufacturer datasheet.
A54SX16A-PQG208A - 24K Gate SX-A FPGA, 208-PQFP | Microchip
The Microchip Technology A54SX16A-PQG208A (originally Actel, later Microsemi) is an SX-A family antifuse FPGA with 24,000 system gates (16K gates, 924 logic cells), 175 user I/Os, and a maximum toggle frequency of 227 MHz, housed in a 208-pin fine-pitch PQFP (BFQFP) package with 2.5V core operation and automotive A-grade screening. An FPGA (Field-Programmable Gate Array) is a semiconductor device that implements digital logic through a fabric of programmable logic modules and routing resources configured after manufacture. The SX-A family uses a sea-of-modules architecture built on a 0.25um CMOS process, and its antifuse programming technology makes the configuration non-volatile and inherently more secure than SRAM-based FPGAs, since no configuration bitstream is stored in external memory at power-up. Key features include the sea-of-modules architecture with C-cells (combinational) and R-cells (sequential) for efficient logic mapping, dual clock networks with dedicated CLKA/CLKB inputs compatible with LVTTL and 3.3V PCI levels, 100% fill routability, and low static power typical of antifuse technology. The A-grade automotive suffix indicates guard-banded room-temperature testing based on characterization across recommended operating conditions. The device is programmed once via antifuse links, so configuration data is physically permanent - a significant advantage in defense, avionics, and automotive designs where bitstream tampering or configuration corruption is a concern. Design entry uses Microchip (Actel/Microsemi) Libero SoC tooling, and the 208-pin PQFP supports surface-mount assembly with standard reflow profiles. Typical applications include automotive control modules, industrial automation glue logic, bus bridging, state-machine consolidation replacing multiple discrete PLDs and ASSPs, and defense/aerospace systems requiring configuration security. When designing with this part, budget I/O carefully: 175 usable I/O on the 208-pin package means roughly 33 pins are committed to power, ground, clocks, and programming. Verify that speed-grade variants (standard, -1, -2) meet timing before second-sourcing within the family. This page synthesizes distributor availability data, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet, with pricing tiers listed below (as of 2026-09-03).
A54SX16A-PQG208I - 16K Gate FPGA, 208-PQFP | Microchip
The Microchip Technology (Microsemi/Actel) A54SX16A-PQG208I is a 16,000-gate antifuse FPGA from the SX-A family with 924 logic cells, a maximum toggle rate of 227 MHz, and a 0.25 um CMOS process, supplied in a 208-pin PQFP (BFQFP) package with 175 user I/O and a 2.5V core supply. An FPGA (Field-Programmable Gate Array) is a semiconductor device that implements digital logic through programmable interconnect and logic blocks, sitting within the broader programmable logic hierarchy: FPGA -> programmable logic device -> digital IC -> semiconductor. The SX-A family uses antifuse programming technology, in which connections are permanently set at programming time. This gives the A54SX16A a non-volatile, configuration-storage-free fabric with no external boot PROM, low power consumption, and inherent resistance to configuration readback attacks. Key features include 16K typical usable gates (approximately 24,000 system gates), 924 logic modules built around multiplexer-based combinational cells, 175 user-input/output pins in the 208-pin QFP, a 2.5V core operating from a 2.25V to 2.75V range, and industrial temperature operation (-40C to +85C) indicated by the I suffix. The 0.25 um process supports system speeds up to 227 MHz toggle frequency, adequate for glue logic, bus interfacing, state machines, and address decoding at moderate clock rates. Architecturally, SX-A devices place routing resources in the top two metal layers above the logic modules, optimizing silicon area and giving predictable, low-skew interconnect. Because the antifuse fabric is one-time programmable, designs are immune to configuration-stream corruption and require no configuration controller, reducing bill-of-materials count versus SRAM FPGAs. Typical applications include industrial control and automation, telecommunications line-card glue logic, aerospace and defense systems requiring non-volatile, secure programmable logic, and legacy board designs where the SX-A family remains the qualified choice. Designers should plan the pinout and one-time programming budget carefully: unlike SRAM FPGAs, an antifuse device cannot be reprogrammed after metal fuses are blown, so functional verification before programming is essential. The PQFP package requires careful PCB land-pattern design for fine 0.5 mm pitch leads. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
A54SX16A-PQG208M - 16K Gate Antifuse FPGA, 208-PQFP | Microchip
The Microchip Technology (formerly Microsemi/Actel) A54SX16A-PQG208M is a 16,000-gate antifuse FPGA from the SX-A family, offering 924 logic modules, 227 MHz military-grade system performance, 175 user I/O, and a 2.5V core supply in a 208-pin PQFP (PQG208) package. Fabricated on a 0.25um/0.22um CMOS process, it is one-time programmable and suited to high-reliability and defense-oriented designs. An antifuse FPGA is a field-programmable gate array whose interconnect is permanently programmed by blowing microscopic antifuse links. Unlike SRAM-based FPGAs, antifuse devices retain their configuration through power cycling without any external configuration memory, which reduces board area, boot time, and the attack surface for bitstream cloning. Within the programmable logic hierarchy, the A54SX16A sits between the smaller SX08 and larger SX32A/SX72A family members, occupying the mid-density tier of Actel's antifuse lineage now maintained by Microchip. Key features include 16K system gates of configurable logic capacity, 924 logic cells implemented as fast C-cells and S-cells, internal clock performance up to 227 MHz, and 175 flexible user I/O supporting 2.5V signaling. Because the interconnect matrix is metal-to-metal antifuse, the device exhibits low toggle-rate power consumption and inherently low jitter path delays. The PQFP-208 package provides gull-wing leads for surface-mount assembly and inspection. The SX-A architecture uses a sea-of-modules fabric with a three-tier routing structure (FastConnect, DirectConnect, and general routing), giving deterministic, short interconnect delays that simplify timing closure in state machines, glue logic, and bus interfaces. Programming is performed after assembly via ACTgen and Designer software flows with standard fuse-blow programming hardware. Typical applications include military and avionics glue logic, communication bridging, bus interface conversion, secure single-chip system integration, and industrial control where non-volatile, tamper-resistant configuration is required. Design consideration: the device is one-time programmable, so logic must be fully verified before programming; plan power and I/O budgets against the 175-I/O limit. This page synthesizes distributor pricing, drop-in alternatives, and design guidance beyond the manufacturer datasheet.
A54SX16A-TQG100 - 24K Gate Antifuse FPGA, 81 I/O | Microchip
The Microchip Technology (Actel/Microsemi) A54SX16A-TQG100 is a 24,000-system-gate antifuse FPGA from the SX-A family with up to 81 user-programmable I/O, 2,012 dedicated flip-flops, and a 227 MHz system performance rating, housed in a 100-pin TQFP (TQG100) package. A field programmable gate array (FPGA) is a semiconductor device containing configurable logic blocks and programmable interconnects that designers configure after manufacturing. The SX-A family belongs to the antifuse FPGA category within the broader programmable logic hierarchy (FPGA -> programmable logic device -> digital IC -> semiconductor). Unlike SRAM-based FPGAs, antifuse devices are one-time programmable, which permanently locks the configuration and makes the design immune to readback, giving inherent security and radiation-tolerant behavior advantages for aerospace and defense systems. Key features include 16,000 typical usable gates (24,000 system gates), a sea-of-modules architecture that delivers deterministic interconnect delays, 0.25 um/0.22 um CMOS process technology, and a 2.5 V core supply. The 924 configurable logic cells with dedicated flip-flops support pipelined designs at up to 227 MHz, dramatically outperforming typical SRAM FPGAs of the same era for glue logic and high-speed state machines. Architecturally, the SX-A uses Actel's sea-of-modules structure with C-cells (combinational) and R-cells (register) tiled across the die, connected through a segmented routing fabric. Because antifuse interconnects have very low on-resistance and capacitance, timing is fast and predictable, and total power consumption is substantially lower than equivalent SRAM FPGA implementations. Typical applications include aerospace and defense logic replacement, industrial control, communication bridging, medical equipment glue logic, and obsolescence-driven ASIC integration where a single-chip, non-volatile, secure FPGA is required. When designing with this device, note it is one-time programmable: functional verification in simulation (Libero IDE/Designer) must be completed before programming, and design lock-up files must be retained for future respins. Observe the 2.25 V to 5.25 V I/O supply constraints on the specified pins. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet, providing supply-chain and engineering context for this legacy-but-active antifuse FPGA.