FPGA & CPLD
Products (6358)
A54SX72A-FGG256 - 108K Gate Antifuse FPGA, 256-FBGA | Microchip
The Microchip Technology A54SX72A-FGG256 (originally Actel/Microsemi) is an SX-A family antifuse FPGA with approximately 108,000 system gates, 6,036 logic cells, and up to 203 user I/O, housed in a 256-ball fine-pitch BGA (FBGA-256) package operating from a single 2.5V supply. An antifuse FPGA is a type of field-programmable gate array whose interconnects are permanently configured at power-up programming time by blowing antifuse elements. Unlike SRAM-based FPGAs, antifuse devices are nonvolatile and reprogrammable-free: the configuration is fixed, which eliminates configuration PROMs, shortens boot time, and improves design security because no bitstream is stored externally. Within the programmable logic hierarchy, the A54SX72A sits at the top of the SX-A family (Actel eXtended architecture), above the A54SX32A and A54SX16A. Key features include 72,000 typical usable gates (108,000 system gates), a maximum toggle rate of approximately 217 MHz, 0.25 um CMOS antifuse technology, and single-chip integration that removes external configuration memory. The device provides dedicated quadrant clock resources (CLKA, CLKB, and QCLK networks) plus hard-wired global clocks for low-skew clocking, as documented in the Microchip SX-A family datasheet. Architecturally, the SX-A fabric is built from combinational and sequential logic modules (C-cells and R-cells) interconnected through a metal-to-metal antifuse routing fabric. This yields low interconnect capacitance, which translates to lower dynamic power and competitive speed for glue logic, bus bridging, and state-machine-heavy designs. The 2.5V core with tolerant I/O structures supports legacy board voltages common in industrial and defense systems. Typical applications include obsolescence-mitigation for legacy Actel designs, industrial automation control, mil-aerospace program logic (the M suffix variant offers military temperature screening), telecommunications backplane bridging, and single-chip integration of multiple discrete logic devices (74-series replacement) for cost and board-space savings. Design consideration: because antifuse programming is one-time, designers must fully validate the design in simulation and, where possible, prototype using the pin-compatible RTSX-S rad-tolerant equivalents in compatible packages before committing production devices. This page synthesizes distributor pricing, drop-in same-package alternatives, design notes, and lifecycle information not found in a single manufacturer datasheet, providing engineering decision support for new designs and replacement sourcing.
A54SX72A-FGG256A - 108K Gate SX-A FPGA 256-BGA | Microchip
The Microchip Technology A54SX72A-FGG256A is an SX-A family antifuse Field Programmable Gate Array (FPGA) with 108,000 system gates (72,000 typical usable gates), 203 user I/Os, and a 217 MHz system performance rating, housed in a 256-ball Fine-Pitch BGA (17x17 mm) package. It operates from a 2.5 V core supply (2.25 V to 5.25 V per device supply specification) across an industrial temperature range of -40C to +125C. An FPGA (Field-Programmable Gate Array) is a semiconductor device containing a fabric of configurable logic blocks and programmable interconnects that the designer wires together after manufacturing, unlike fixed-function ASICs. The SX-A family belongs to the one-time-programmable antifuse class of FPGAs, positioned above simple PLDs and below large SRAM-based FPGAs in the programmable logic hierarchy. Antifuse programming means the configuration is non-volatile, immune to configuration readback, and requires no external boot flash. Key features include 0.25 um antifuse technology, 108,000 equivalent gates with up to 6,036 modules, 203 programmable I/Os, quadrant clock networks (CLKA, CLKB and QCLK) for flexible clock distribution, and a single low-cost 2.5 V supply. The antifuse fabric delivers ASIC-like speeds (up to 217 MHz) with very low static power and inherently secure bitstream storage, making it attractive for designs where configuration integrity matters. Architecturally, the SX-A fabric combines Combinatorial Modules and Sequential Modules in a sea-of-modules layout, with high-speed routing resources and dedicated global/quadrant clocking. The 0.25 um process supports 2.5 V operation while maintaining voltage-tolerant I/Os for mixed-voltage board environments. Typical applications include industrial control, communications and networking glue logic integration, aerospace/defense secure designs, and single-chip integration of multiple discrete logic devices to reduce board area and bill-of-material cost. Design consideration: as a one-time-programmable antifuse device, the design must be fully verified before programming; there is no in-circuit reprogramming. Plan I/O assignments and timing closure carefully in Libero/Microsemi design tools prior to programming. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet.
A54SX72A-FGG256I - 108K-Gate Antifuse FPGA, 203 I/O | Microchip
The Microchip Technology (Microsemi) A54SX72A-FGG256I is an SX-A family antifuse FPGA delivering 108,000 system gates (6,036 logic cell blocks) with 203 user I/O in a 256-ball fine-pitch FBGA (FGG256) package, operating from a single 2.5V core supply at industrial temperature grades. An antifuse FPGA is a one-time-programmable field-programmable gate array in which programmable interconnect elements are permanently formed during a one-time programming step. Unlike SRAM FPGAs, antifuse devices retain their configuration with no external boot flash, exhibit very low static power, and are inherently resistant to configuration readback attacks, making them a mature choice within the broader hierarchy of programmable logic devices (PLD > FPGA > antifuse FPGA). Key features include the 0.25 um CMOS process technology, system clock rates reported up to 217 MHz depending on speed grade and design, single-chip integration that eliminates configuration memory, and industrial temperature operation indicated by the -I suffix. The fine-pitch 1.0 mm ball-pitch FBGA conserves board area while providing generous 203-user-I/O routing flexibility for wide data buses. Architecturally, the SX-A family uses Actel-derived programmable logic modules organized into clusters, with multiple global and quadrant clock networks (CLKA, CLKB, and QCLK) that support high-speed synchronous designs; Microchip application notes describe quadrant clock usage specific to the A54SX72A. Typical applications include industrial control and automation, communications and networking line cards, military and aerospace logic replacement, ASIC prototyping glue logic, and obsolescence-driven redesigns where one-time programmability, security, and low power are priorities. Design consideration: because the device is one-time-programmable, complete functional simulation and pin assignment review in the Microchip (Actel) design flow must be completed before programming; budget for programming service or in-house programming equipment. This page adds value beyond the manufacturer datasheet by consolidating distributor pricing context, same-footprint drop-in speed-grade and temperature-grade alternatives, comparison tables, and practical design notes in one reference.
A54SX72A-FGG256M - 108K Gate SX-A Antifuse FPGA | Microchip
The Microchip Technology (Microsemi) A54SX72A-FGG256M is an SX-A family antifuse FPGA with 108,000 system gates (72,000 typical gates), 203 user I/O, and a 256-ball Fine-Pitch Ball Grid Array (FBGA) package, operating from a single 2.5V core supply with system performance up to 217 MHz. An antifuse FPGA is a field-programmable gate array whose interconnect is permanently programmed by electrically forming antifuse links. Unlike SRAM-based FPGAs, the antifuse configuration is non-volatile, one-time programmable, immune to configuration readback, and requires no external configuration PROM, making the device suitable for secure, single-chip system integration at boot. In the programmable logic hierarchy, the SX-A family sits among one-time-programmable FPGA architectures based on a 0.25 um CMOS process with a sea-of-modules fabric of combinational and sequential logic modules. Key features include 72,000 typical gate capacity in the largest SX-A die, 203 available user I/O in the 256-FBGA, quadrant and global clock networks (CLKA, CLKB and QCLK routing) supporting synchronous designs above 200 MHz, and low static power consumption characteristic of antifuse technology. The FGG256M suffix denotes the commercial temperature range in a 256-ball FBGA in tray packaging. The architecture provides deterministic, pin-to-pin performance with no reconfiguration latency, which suits designs where configuration security, radiation-tolerant design heritage, and immediate-on operation matter more than in-system reprogrammability. Typical applications include industrial control and automation, communications and networking interface glue logic and bridging, aerospace and defense control systems leveraging Microsemi heritage, and single-chip integration of multiple discrete logic functions to reduce board cost. Design consideration: because the device is one-time programmable, bitstream verification in Libero SoC design software is essential before programming; prototype on the companion SX-A programming hardware before committing production sockets. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet.
A54SX72A-FGG484 - 108K Gate Antifuse FPGA 484-FBGA | Microchip
The Microchip Technology A54SX72A-FGG484 is an SX-A family antifuse FPGA with 108,000 system gates (72,000 typical usable gates), 6036 configurable logic blocks, 4024 logic cells, and 360 user I/O, housed in a 484-ball FBGA package operating at a 2.5V core supply with up to 217 MHz system performance. A field-programmable gate array (FPGA) is a semiconductor device containing a fabric of configurable logic blocks and programmable interconnects that designers configure after manufacturing. Within the programmable logic hierarchy, the FPGA sits above SPLDs and CPLDs as the highest-capacity category of programmable logic IC. The SX-A family from Actel (now Microchip, formerly Microsemi) uses antifuse programming technology, in which permanent one-time-programmable connections are formed during programming. Key differentiating features include the antifuse fabric that yields near-ASIC routing delays, high resistance to configuration readback (providing inherent design security), zero standby configuration-loading time at power-up, and low static power consumption. With a toggle rate of up to 217 MHz on a 0.25um/0.22um CMOS process, the device supports high-throughput glue logic, bus bridging, and state-machine integration while replacing multiple discrete devices with a single-chip solution. Architecturally, each SX-A logic module combines combinational and sequential elements, and the A54SX72A is the largest member of the family, offering multiple global and quadrant clock networks (CLKA, CLKB, and QCLK resources) per Microchip documentation for low-skew clock distribution. The FBGA package provides short, low-inductance ball connections suited to high-speed signal integrity. Typical applications include industrial control and automation, communications and networking line cards, avionics and defense systems requiring one-time-programmable security, medical instrumentation, and test equipment backplanes where instant-on operation and configuration tamper resistance matter. When designing with this device, plan I/O banking and 2.5V supply distribution early, and use Microchip Libero SoC design tools with the SX-A macro libraries; note that antifuse programming is irreversible, so verify the design fully in simulation before programming production units. This page synthesizes distributor pricing tiers, drop-in alternatives within the same 484-ball FBGA footprint, and practical design notes not found in the manufacturer datasheet.
A54SX72A-FGG484A - 108K-Gate Antifuse FPGA, 484 FBGA | Microchip
The Microchip Technology (Microsemi/Actel) A54SX72A-FGG484A is a 108,000-system-gate antifuse FPGA from the SX-A family with 360 user I/O, 2.5 V core operation, up to 217 MHz system performance, and a 484-ball Fine-Pitch Ball Grid Array (FBGA) package. A field-programmable gate array (FPGA) is a semiconductor device containing configurable logic blocks and programmable interconnects that engineers program after manufacturing. Within the FPGA hierarchy, the SX-A family belongs to the antifuse (one-time programmable, OTP) class of FPGAs, sitting alongside SRAM-based and flash-based FPGA types in the broader programmable logic and power/logic integration landscape. Antifuse FPGAs configure their interconnect permanently at power-up programming, which gives them inherent security and low static power advantages over SRAM FPGAs. Key features of the A54SX72A include 108,000 equivalent system gates with 72,000 typical gates available, 360 configurable user I/O, and single-chip integration of multiple logic functions to reduce system cost. Because the configuration is stored in antifuse elements, no external configuration PROM or boot flash is required, and the bitstream is never exposed on the bus, providing design security that SRAM FPGAs cannot match. The device operates from a 2.5 V supply and is fabricated on a 0.25 um CMOS process, supporting clock rates up to 217 MHz. Architecturally, the SX-A device provides a sea-of-modules fabric of combinatorial and sequential logic modules (C-cells and R-cells) interconnected through a programmed routing network, with dedicated global and quadrant clock networks (CLKA, CLKB, and QCLK) for low-skew clock distribution across the die, as documented in the SX-A family datasheet. Typical applications include industrial control and automation logic integration, communications and networking line-card glue logic, aerospace and defense systems where design protection matters, and legacy system re-design or obsolescence bridging where a one-time-programmable, secure FPGA replaces multiple ASSPs. A key design consideration is that antifuse devices are one-time programmable: unlike SRAM FPGAs, there is no in-system reconfiguration, so design verification must be complete before programming, and spare gates should be reserved for ECOs. This page consolidates verified distributor listings, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet, providing buyers and engineers with a single decision-ready reference.
A54SX72A-FGG484I - 108K-Gate SX-A FPGA 484-BGA | Microchip
The Microchip Technology (Microsemi) A54SX72A-FGG484I is an SX-A family antifuse FPGA with 108,000 system gates (72K gates, 6036 logic cells/CLBs), 360 user I/Os, and up to 217 MHz system performance, housed in a 484-ball Fine-Pitch Ball Grid Array (FBGA-484) with 1 mm ball pitch, in an industrial-grade (I-suffix) temperature rating. A field programmable gate array (FPGA) is a semiconductor device containing a matrix of configurable logic blocks (CLBs) interconnected by programmable interconnects. Within the FPGA hierarchy, the SX-A family belongs to the one-time-programmable antifuse category, sitting alongside fuse-based and SRAM-based FPGA technologies as a class of programmable logic devices (PLDs) used in power management of system-level digital design. Key features include a 0.25 um CMOS process operating from a 2.5V core supply, antifuse interconnect that is inherently non-volatile, secure, and radiation-tolerant compared to SRAM FPGAs, quadrant clock networks (CLKA, CLKB, and QCLK) for flexible clocking, and low static power consumption typical of antifuse architectures. Technically, the SX-A architecture uses a sea-of-modules fabric with combinational and sequential logic modules; the A54SX72A is the largest member of the family. The antifuse switch is programmed once at the factory-programming stage or at board programming, so configuration data cannot be read out, giving inherent design security and eliminating configuration PROMs required by SRAM FPGAs. Typical applications include industrial control, communications and networking equipment, avionics and military systems requiring design security, and single-chip integration of glue logic, bus interfaces, and state machines where a low-cost, low-power, secure programmable device is required. Design consideration: because the device is one-time programmable, verify the design fully in simulation (Libero IDE / Designer software) before programming; prototype on larger-density members of the family to preserve routing headroom. Power the 2.5V core with adequate decoupling at each VCCA/VCCI domain. This page synthesizes distributor pricing, drop-in same-footprint alternatives, and practical design notes not found in the manufacturer datasheet, with pricing and stock as of 2026-09-03.
A54SX72A-FGG484M - 108K Gate Antifuse FPGA, 484 FBGA | Microchip
The Microchip Technology (Microsemi) A54SX72A-FGG484M is a 108,000-system-gate antifuse FPGA from the SX-A family, offering 6036 logic cells, 360 user I/O, and a maximum toggle rate of 217 MHz in a 484-ball Fine-Pitch Ball Grid Array (FBGA, 27x27 mm) package. A field-programmable gate array (FPGA) is an integrated circuit that implements user-defined digital logic through programmable interconnect and configurable logic blocks, sitting within the broader hierarchy of programmable logic devices (PLDs) alongside CPLDs and structured ASICs. The SX-A family uses antifuse (one-time programmable) technology, which means the configuration is permanently written at programming time rather than stored in an SRAM configuration cell. Key features include 108K system gates (72K typical usable gates), 2.5 V core supply with a 2.25 V to 5.25 V supply range for the mixed-voltage I/O structure, 0.25 um CMOS antifuse process technology, and a combinatorial logic delay of approximately 1.8 ns per module with 1.5 ns class I/O switching performance. The antifuse architecture provides three significant engineering advantages over SRAM FPGAs: near-zero standby power, inherent configuration bitstream security (no readback path exists), and immunity to configuration upsets, making the device well suited to harsh environments. The A54SX72A-FGG484M is rated for a wide -55C to +125C (TC) operating temperature range and is RoHS3 compliant and lead free. Typical applications include aerospace and defense logic integration, industrial control systems, communications bridge logic, bus interface glue logic, and single-chip integration of multiple discrete ASIC/SSI/MSI functions where configuration security and low power matter. Design consideration: because antifuse devices are one-time programmable, final design verification must be completed using device programming and simulation before committing silicon; no post-deployment reconfiguration is possible. This page synthesizes distributor pricing, same-package drop-in alternatives across speed and temperature grades, and practical design notes not found in the manufacturer datasheet.
A54SX72A-FPQ208 - 108K-Gate Antifuse FPGA, 171 I/O | Microchip
The Microchip Technology A54SX72A-FPQ208 is a 108,000-gate antifuse FPGA from the SX-A family, offering up to 171 user-programmable I/O pins in a 208-pin, 28 x 28 mm BFQFP (fine-pitch QFP) surface-mount package. It is a one-time-programmable (OTP), single-chip programmable logic device built on a 0.25 um CMOS process. An FPGA (Field-Programmable Gate Array) is a semiconductor device that implements user-defined digital logic through configurable logic blocks (CLBs) and programmable interconnect. The A54SX72A belongs to the antifuse FPGA subcategory: unlike SRAM-based FPGAs, its programming connections are permanent antifuse links, giving it inherent non-volatility, high design security, and instant-on operation with no external configuration device. Within the programmable logic hierarchy it sits as: FPGA -> antifuse FPGA -> programmable logic IC -> digital IC. Key features include 108,000 available system gates (up to 72,000 typical gates usable for design implementation), 171 user I/O pins, quadrant clock inputs (CLKA-CLKD) feeding dedicated global clock distribution networks, and dedicated flip-flops for high-speed registered designs. The device is optimized for low power and single-chip integration, replacing multiple glue-logic devices with one secure, non-reprogrammable silicon solution. Technically, the SX-A architecture uses a sea-of-modules fabric with combinable logic modules, and its I/O levels are compatible with standard TTL, LVTTL, LVCMOS2, 3.3 V PCI, and 5 V PCI signaling specifications, easing integration into both legacy 5 V and modern 3.3 V systems. The antifuse interconnect adds very low junction capacitance, supporting high-speed, low-skew clocking compared with pass-transistor SRAM routing. Typical applications include industrial control and automation, communications and networking interface logic, aerospace and defense designs requiring configuration-readout security, and legacy system life-cycle management where the bitstream cannot be dumped or cloned. Design consideration: because the device is OTP, verify the design fully in simulation and, where practical, in a companion reprogrammable device or larger-pin-count member of the family before committing to programming - antifuse errors cannot be corrected in-circuit. This page synthesizes verified distributor data, same-family drop-in alternatives, pinout guidance, and practical design notes beyond what the manufacturer datasheet alone provides.
A54SX72A-FPQG208 - 108K Gate Antifuse FPGA 208-QFP | Microchip
The Microchip Technology (Actel/Microsemi) A54SX72A-FPQG208 is an SX-A family antifuse FPGA with 108,000 available system gates, 6,036 configurable logic blocks, and 171 user I/O, housed in a 208-pin BFQFP (fine-pitch QFP) surface-mount package. Its 2.5V core and 0.25 um/0.22 um CMOS process deliver up to 250 MHz system performance and 350 MHz internal clock performance. An antifuse FPGA is a field-programmable gate array whose interconnect is permanently programmed at power-up programming time via an antifuse element. Unlike SRAM FPGAs, antifuse devices are non-volatile, require no external configuration ROM, are immune to configuration readback, and draw very low static power - placing them in the hierarchy of programmable logic alongside CPLDs and one-time-programmable ASIC alternatives. Key features include the 108K system gate density (72,000 typical usable gates), 171 user I/O, and quadrant clock inputs (CLKA-CLKD) for flexible global clock distribution. The antifuse fabric provides low on-resistance interconnect and inherent design security because the programmed configuration cannot be read out. Support for TTL, LVTTL, LVCMOS2, 3.3V PCI, and 5V PCI I/O standards gives broad system-level interface compatibility. The SX-A architecture uses sea-of-modules logic with combinational and sequential modules, enabling high internal toggle rates for state machines, glue logic consolidation, bus interfaces, and address decoding. The 350 MHz internal capability supports counters and pipeline stages far beyond typical CPLD speeds. Typical applications include industrial control, aerospace and defense systems (where configuration volatility matters), telecommunications line cards, and legacy system re-designs that consolidate multiple discrete devices into a single-chip solution for board-space and BOM savings. Design consideration: antifuse devices are one-time programmable - verify your design thoroughly in simulation (Libero IDE/Designer flow) before programming, since a design change requires a new physical device. This page adds value beyond the manufacturer datasheet by synthesizing distributor pricing, pin-compatible PQ208 alternatives within the SX-A family, and practical design notes for one-time-programmable design flows.
A54SX72A-PQ208 - 108K Gate Antifuse FPGA, 208-PQFP | Microchip
The Microchip Technology A54SX72A-PQ208 is an SX-A family antifuse FPGA with up to 108,000 system gates, 4,024 logic cells, 171 user-programmable I/O pins, and a toggle frequency up to 217 MHz, housed in a 208-pin PQFP (208-BFQFP) package. It operates from a 2.25V to 5.25V supply over a commercial 0C to +70C temperature range. An antifuse FPGA is a type of field-programmable gate array in which the programmable interconnect is formed by one-time-programmable antifuse elements rather than SRAM configuration cells or flash. Within the programmable logic hierarchy (FPGA -> programmable logic device -> digital IC), antifuse devices occupy the non-volatile, configuration-retention niche: the programmed connections are permanent, so no external configuration ROM is required at power-up, and the bitstream cannot be read out of the device. Key features of the A54SX72A-PQ208 include the 0.25 um CMOS process technology, up to 2,012 dedicated flip-flops, multiple global and quadrant clock networks (CLKA, CLKB, and QCLK), and low static power consumption enabled by the antifuse architecture. The 171 available user I/O on the PQ208 package supports mixed-voltage interfacing across the wide 2.25V to 5.25V supply range. The SX-A architecture uses a sea-of-modules fabric with combinational and sequential logic modules, giving deterministic interconnect delays that simplify timing closure compared with SRAM FPGAs. According to the Microchip SX-A Family FPGAs datasheet, the A54SX72A delivers high performance at low power, and the family is positioned for integrating multiple functions into a low-cost, single-chip solution. Typical applications include industrial control and automation, glue logic integration and system consolidation, bridge and interface functions, and prototyping for the rad-tolerant RT54SX-S space devices, which Microchip documents as pin compatible in CQ208/PQ208 packages. A key design consideration: antifuse devices are one-time programmable, so all functional verification must be completed in simulation before programming; budget spare I/O and logic capacity of at least 20% for design changes. This page synthesizes distributor pricing, same-package drop-in speed/temperature-grade variants, and practical design notes not consolidated in the manufacturer datasheet. Pricing shown is indicative as of 2026-09-03.
A54SX72A-PQ208I - 108K-Gate Antifuse FPGA, 208-PQFP | Microchip
The Microchip Technology A54SX72A-PQ208I is a 108,000-system-gate antifuse FPGA from the SX-A family, delivering up to 171 user-programmable I/O pins, 2,012 dedicated flip-flops, and up to 217 MHz system performance in a 208-pin BFQFP (PQ208) surface-mount package. It operates from a 2.25V to 5.25V supply and is rated for the industrial temperature range of -40C to +85C. An antifuse FPGA is a type of field-programmable gate array in which programming connections are permanent one-time fuses. Unlike SRAM-based FPGAs, antifuse devices retain their configuration through power cycles without an external configuration memory, and the programming element adds very little routing capacitance, which yields inherently low power, high speed, and improved resistance to configuration corruption - placing this device in the broader hierarchy of FPGA, programmable logic, and semiconductor integrated circuits. Key features include the 0.25 um CMOS process technology, 4,024 logic cells organized into 6,036 logic array blocks (LABs), multiple global clock networks (CLKA, CLKB and quadrant QCLK routing), and the single-chip, non-volatile architecture that removes the external boot flash required by SRAM FPGAs. These traits make the SX-A family a cost-effective solution for integrating multiple functions into one low-power, high-performance device. Architecturally, the A54SX72A is the largest member of the SX-A family, using Actel's (now Microchip) antifuse routing fabric with dedicated hard-wired interconnect that minimizes switching capacitance and pin-to-pin delays. The quadrant clock structure described in the SX-A Family FPGAs datasheet enables predictable clock skew across large designs, while the sea-of-modules routing supports high gate utilization. Typical applications include telecommunications and networking line cards, industrial automation controllers, consumer electronics glue logic integration, and aerospace/defense designs that benefit from the configuration immutability of antifuse technology. When designing with this part, note that antifuse programming is permanent: design changes require a new device, so fully verify timing in Libero/Designer before programming. Also confirm I/O current budgeting across the 171 available user I/O. This page synthesizes distributor pricing, drop-in alternatives, design notes, and comparison data not found in the manufacturer datasheet, giving engineers and buyers a single authoritative reference for the A54SX72A-PQ208I.
A54SX72A-PQ208M - 108K-Gate SX-A Antifuse FPGA | Microchip
The Microchip Technology (Actel/Microsemi) A54SX72A-PQ208M is a 108,000-gate SX-A family antifuse FPGA with up to 2,012 dedicated flip-flops and 171 user-programmable I/O pins, housed in a 208-pin PQFP (208-BFQFP) surface-mount package operating from a 2.5V core supply. An antifuse FPGA is a type of field-programmable gate array whose interconnect is permanently configured at power-up programming time via antifuse links. Unlike SRAM-based FPGAs from Xilinx or Intel (Altera), antifuse devices are non-volatile and one-time programmable: the configuration is stored physically in the silicon, requires no external configuration ROM, boots instantly, and is inherently resistant to configuration readback, making the SX-A family a historical choice for secure, high-reliability industrial and aerospace logic designs. Key features of the A54SX72A include 108,000 available system gates, a 0.25 um CMOS process technology, system-level toggle rates up to 217 MHz on the core, and up to 360 user-programmable I/O across the full family. The device provides multiple global and quadrant clock networks (CLKA, CLKB and QCLK resources) for low-skew clock distribution, and single-chip integration replaces multiple ASSPs or glue-logic devices for system-wide cost savings. Architecturally, the SX-A fabric consists of combinatorial modules and sequential modules arranged in clusters, with a fine-grained routing architecture. The 0.25 um process delivers low static power compared to SRAM FPGAs of the same era, and the antifuse interconnect adds near-zero routing capacitance, supporting performance with low power consumption. Typical applications include industrial control and automation, secure communications and encryption interfaces, military and avionics subsystems, test equipment, and bus-interface or bridge logic where instant-on, tamper-resistant, single-chip integration is valued. Designers should note that antifuse FPGAs are one-time programmable: a design change requires a new physical device, so thorough simulation before programming is essential. Also, being a legacy product line, new designs should verify lifecycle availability. This page synthesizes distributor pricing, drop-in alternatives within the SX-A family, and practical design notes not found in the manufacturer datasheet.
A54SX72A-PQG208A - 108K Gate Antifuse FPGA | Microchip
The Microchip Technology (Actel/Microsemi) A54SX72A-PQG208A is a 108,000 system-gate antifuse FPGA from the SX-A family, offering up to 360 user-programmable I/O (171 I/O available in the 208-pin package), 2,012 dedicated flip-flops, and a 0.25 um CMOS process in a 208-pin PQFP (PQG208) package operating at a 2.5V core supply. An antifuse FPGA is a field-programmable gate array whose interconnects are permanently configured by electrically blowing antifuse links at programming time. Unlike SRAM-based FPGAs (Xilinx, Altera), antifuse devices are non-volatile, one-time programmable, and require no configuration ROM or boot sequence, which makes them inherently more resistant to configuration readback attacks and immune to configuration upsets at power-on. Within the FPGA hierarchy, the A54SX72A sits in the low-power, high-security, single-chip ASIC-replacement category. Key features include a sea-of-modules architecture with up to 6,036 logic cells, system performance up to 217 MHz, TTL/LVTTL/LVCMOS2/3.3V PCI and 5V PCI compatible I/O levels, quadrant clock inputs for low-skew clock distribution, and automotive qualification variants within the SX-A family. The 0.25 um CMOS process delivers low static power and high gate density at low cost. The A54SX72A implements logic in configurable Logic Modules (combinational and sequential) with dedicated flip-flops supporting high-frequency pipelined designs. The four quadrant clock pins (A, B, C, D) drive low-skew clock networks across the die. Because the antifuse fabric is programmed once, time-to-market beats ASIC development while achieving ASIC-like security and standby power. Typical applications include industrial control and automation, military/aerospace glue logic and co-processors, communications line cards, medical instrumentation, and automotive systems using the A-temperature-grade PQG208A variant. Design consideration: antifuse FPGAs are one-time programmable - reserve ample logic headroom (use the 72,000 typical gates of the 108K device budget) and validate the design fully before programming, since design changes require a new device. Note that the A54SX72A-PQG208 sister part is reported end-of-life (December 2025) by OnlineComponents; verify lifecycle on purchase. This page synthesizes verified distributor data, drop-in same-package alternatives, pricing tiers, and practical design notes not consolidated in the manufacturer datasheet.
A54SX72A-PQG208I - 108K-Gate Antifuse FPGA 208-PQFP | Microchip
The Microchip Technology A54SX72A-PQG208I is an SX-A family antifuse FPGA with 108,000 system gates (72,000 typical gates), 6,036 logic modules, 171 user I/Os, and system performance up to 217 MHz, housed in a 208-pin PQFP (BFQFP) package with gull-wing leads, rated for the industrial temperature range. An antifuse FPGA is a field-programmable gate array in which programmable interconnects are one-time-programmable antifuse elements. Unlike SRAM-based FPGAs, antifuse devices retain their configuration permanently with no external boot configuration memory, which reduces bill-of-materials cost, shortens power-up time, and improves design security because the bitstream is never stored externally. In the programmable logic hierarchy, the A54SX72A sits within the FPGA class alongside one-time-programmable and reprogrammable fabric devices. Key features include a 2.5V core supply with I/O supply support from 2.25V to 5.25V per distributor data, enabling direct interfacing with 3.3V and 5V legacy logic families. The segmented routing architecture delivers predictable interconnect delays, supporting the 217 MHz toggle capability reported by distributors. The non-volatile antifuse fabric also offers low static power consumption and inherent resistance to configuration readback attacks. The device is fabricated on a 0.25 um process and organized into logic modules with multiplexer-based combinational cells and register cells, a structure suited to wide-decode, state-machine, and glue-logic integration. Quadrant clock inputs (A, B, C, D per the Microchip SX-A datasheet) support multiple low-skew clock domains. Typical applications include industrial control and automation, communications line-card glue logic, aerospace and defense single-board computers where configuration volatility is unacceptable, and cost-reduction ASIC prototypes or bridge logic consolidating multiple ASSPs into one chip. Design consideration: because antifuse FPGAs are one-time programmable, thoroughly complete simulation and timing verification in Libero SoC before programming, and budget the programming service or in-house programmer into your production flow. This page synthesizes distributor pricing, same-package drop-in variants, and practical design notes not found in the manufacturer datasheet.
A54SX72A-PQG208M - 108K-Gate Antifuse FPGA 217MHz | Microchip
The Microchip Technology (Microsemi/Actel) A54SX72A-PQG208M is a high-density SX-A family antifuse FPGA offering 72,000 ASIC gates (108,000 system gates), 4,024 module cells, 171 user I/Os, and a maximum toggle frequency of 217 MHz, fabricated on a 0.25 um process with a 2.5 V core supply and housed in a 208-pin PQFP (BFQFP) surface-mount package measuring 28 mm x 28 mm x 3.4 mm. A field-programmable gate array (FPGA) is a semiconductor device containing a matrix of configurable logic blocks and programmable interconnects that designers program to implement custom digital circuits. The A54SX72A belongs to the antifuse FPGA subcategory: unlike SRAM-based FPGAs, its antifuse interconnect elements are one-time programmable, so the configuration is permanent, inherently non-volatile, and immune to configuration readback - a hardware security advantage for defense and industrial designs. Key features include the 108K system gate capacity for integrating multiple logic functions into a single low-cost chip, the 217 MHz system speed supported by dedicated global and quadrant clock networks (CLKA, CLKB, QCLK), and the antifuse architecture which removes the need for an external configuration PROM and eliminates configuration bitstream loading time at power-up. Technically, the SX-A family uses a sea-of-modules architecture with combinational C-cells and sequential R-cells, implemented in a 0.25 um CMOS process. The device is designed in using Microchip's Libero SoC design suite (historically Actel Designer flow) and programmed at the board house or by the user with standard programming hardware. Typical applications include industrial control, networking line cards, glue logic integration,ASIC prototyping, and secure military/avionics systems where a non-volatile, single-chip programmable solution reduces BOM cost and board area. When designing with this device, remember the antifuse is one-time programmable - verify the design thoroughly in simulation before programming, and check that 2.5 V core and I/O voltage rails are properly sequenced. This page synthesizes verified distributor data, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet. Pricing as of 2026-09-03.
DLP4500 - 0.45 WXGA DMD | Texas Instruments | Spatial Light Modulator
The DLP4500 from Texas Instruments is a digitally controlled MOEMS (micro-opto-electromechanical system) spatial light modulator (SLM) featuring a 0.45-inch (11.43 mm) diagonal micromirror array of aluminum, micrometer-sized mirrors. With a 7.6-µm micromirror pitch and ±12° micromirror tilt angle, it delivers high-resolution pattern steering for visible light applications. The device is designed to work with the DLPC350 controller, which coordinates mirror reset pulses and image data loading. A digital micromirror device (DMD) is an array of microscopic mirrors that reflect light to create patterns or images. Each mirror represents one pixel and can be tilted between two states to modulate light. DMDs are the core of DLP projection technology and are used in spatial light modulation for structured light, 3D scanning, and optical patterning. The DLP4500 is a WXGA (912 × 1140) array, offering high resolution in a compact form factor. Key features include a 912 × 1140 micromirror array, 7.6-µm mirror pitch, ±12° tilt angle, and support for a 30-bit parallel RGB interface for image data transfers. The device operates with a DLPC350 controller and requires proper generation of PWRGOOD and POSENSE inputs for reliable operation. The DLP4500 is available in a 98-pin LCCC package (20.7 × 9.1 mm) and is designed for visible light applications. The DLP4500 uses a MEMS (micro-electromechanical systems) architecture where each micromirror is electrostatically actuated. The mirrors are arranged in a 912 × 1140 array with a uniform band of border micromirrors that are not user-addressable. The device supports high-speed pattern rates, making it suitable for applications requiring fast light modulation. The DLPC350 controller generates internal mirror reset pulses, ensuring precise timing. Typical applications include 3D scanning and measurement, structured light for machine vision, augmented reality, and optical patterning. The DLP4500 is also used in medical imaging and spectroscopy. Its high resolution and fast switching make it ideal for industrial and scientific applications where precise light control is essential. When designing with the DLP4500, ensure proper thermal management and signal integrity. The device requires a clean power supply and careful PCB layout to minimize noise. The DLPC350 controller must be configured correctly to achieve optimal performance.
EP1810GC-35 - UV PLD, 40ns, CMOS, CPGA68 | Altera / Rochester
The Altera EP1810GC-35 is a high-performance Erasable Programmable Logic Device (EPLD) based on CMOS technology, packaged in a 68-pin Ceramic Pin Grid Array (CPGA68). It features up to 64 inputs and 48 outputs, with a propagation delay of 40 ns (the "-35" speed grade) and is supplied as a UV-erasable variant for prototyping and low-volume applications. The device is currently supported through Rochester Electronics, the authorized continuing-source partner for legacy Altera (now Intel FPGA) EPLD products. An EPLD (Erasable Programmable Logic Device) is a type of Programmable Logic Device (PLD) that uses UV-erasable EPROM cells to store the user's logic configuration. EPLDs sit in the broader taxonomy of programmable logic devices, between simple SPLDs/PLAs and more complex CPLDs/FPGAs. The EP1810GC-35 belongs to the Classic EPLD family, which targets glue-logic integration in systems where deterministic timing and short propagation delays matter more than raw logic density. CPLDs and FPGAs are now the mainstream alternatives, but classic UV EPLDs remain in service in long-lifecycle industrial, aerospace, and military programs. Key specifications include 16 macrocells (industry-standard terminology for this family), a maximum propagation delay of 40 ns, TTL-compatible I/O, and a maximum clock frequency determined by the tpd figure. The CPGA68 ceramic package is a through-hole Pin Grid Array rated for the extended industrial and military temperature range, which is the reason CPGA variants remain popular for high-reliability applications. The device is programmed via the Altera classic programming algorithm and erased by exposing the quartz window to UV light, allowing multiple reprogramming cycles during development. Typical applications include bus-interface glue logic, address decoding, state-machine implementation, and interrupt prioritisation in legacy industrial controllers, avionics subsystems, and military-grade embedded systems. The deterministic 40 ns delay and TTL I/O make it straightforward to use as a drop-in replacement for discrete 74-series glue logic, while consolidating dozens of packages into a single programmable device. Designers should verify the supply voltage and I/O standard against the original system specification before substituting a CPLD, since newer CMOS-only families require different programming voltages. For long-life-cycle programs, sourcing the EP1810GC-35 through Rochester Electronics ensures continued support and traceability under the original Altera datasheet specification. This page consolidates verified distributor pricing, pin-compatible alternatives, and design notes not found on a single OEM page.
EP1810GC-35AB - Classic EPLD, 48 Macrocells, 35ns | Altera
The Altera EP1810GC-35AB is a member of the Classic EPLD family, a high-performance CMOS Erasable Programmable Logic Device offering up to 64 inputs, 48 outputs, and 48 macrocells in a Pin Grid Array (PGA) package. Built on advanced CMOS EPROM technology, this part delivers high-speed, low-power logic integration with a maximum propagation delay of 35 ns and is offered in a ceramic PGA package with the speed grade suffix "-35". What is an EPLD? An EPLD (Erasable Programmable Logic Device) is a type of programmable logic device that uses EPROM or EEPROM cells to store the configuration, allowing the device to be erased with ultraviolet light and reprogrammed. EPLDs sit in the broader programmable logic hierarchy: programmable logic -> EPLD -> CPLD -> programmable logic IC -> semiconductor. They offer predictable timing, deterministic pin-to-pin delays, and are typically used as "glue logic" to replace multiple discrete SSI/MSI logic gates, providing design flexibility without the complexity of an FPGA. Key features of the EP1810GC-35AB include 48 macrocells, 12 dedicated input pins, 48 I/O pins, a maximum propagation delay (tPD) of 35 ns, and a maximum toggle frequency of 62.5 MHz. The device is fabricated on a low-power CMOS EPROM process, supports in-system programmability via a JTAG-like interface, and retains its configuration for at least 10 years. The ceramic PGA package provides robust thermal performance suitable for industrial and military temperature grades. From an architectural standpoint, the EP1810GC-35AB uses a sum-of-products architecture with a programmable AND/OR array feeding output macrocells. Each macrocell contains a flip-flop and programmable I/O controls for registered, combinational, or bidirectional operation. The device includes a global clock network, asynchronous clear, and output enable controls, enabling the implementation of complex state machines and interface logic. Typical applications include high-speed bus decoding, address mapping in 8-bit and 16-bit microprocessor systems, state-machine implementation, glue-logic replacement for multiple 74LS/74F-series TTL gates, and industrial control systems. The Classic EPLD family is also widely used in legacy telecom infrastructure, military/aerospace systems, and test equipment where long-term lifecycle support and known-good silicon are essential. When designing with the EP1810GC-35AB, note that this device is part of an obsolete product line; engineers should verify long-term availability with authorized distributors or consider modern Altera/Intel MAX series CPLDs as a redesign path. The ceramic PGA package requires a socket or careful PCB layout for the through-hole pin array.
EP1810GI-45 - UV PLD, 50ns, 24 Macrocells, CPGA-68 | Altera
The Altera EP1810GI-45 is a UV-erasable programmable logic device (PLD) from the Altera Classic EPLD family, housed in a 68-pin Ceramic Pin Grid Array (CPGA-68) package with an integrated quartz window for in-system erasure. It provides 24 macrocells, 48 flip-flops, and a propagation delay of 45 ns (the -45 speed grade) over the commercial operating range, with a maximum toggle frequency rated in the EPLD Classic family for combinational and registered logic implementation. A UV-erasable PLD (also called an EPLD or erasable programmable logic device) is a non-volatile logic IC that can be configured by the user to implement custom combinational and sequential logic. PLDs sit within the broader programmable logic hierarchy that includes PROMs, PALs, GALs, CPLDs, and FPGAs; the Classic EPLD family represents one of the earliest erasable, macrocell-based PLD architectures. Programming is performed electrically via a dedicated programmer, and erasure is achieved by exposing the die through the quartz window to ultraviolet light, after which the device can be reprogrammed - making EP1810GI-45 well suited to prototype and low-volume production environments. Key features include 24 dedicated macrocells, 48 flip-flops, 45 ns propagation delay (tpd), and CMOS technology for low power operation. The CPGA-68 ceramic package with UV window supports field reprogramming, while the 45 ns speed grade enables use in glue-logic, bus interfacing, state-machine control, and address decoding roles in legacy systems. The device is offered in -45 (45 ns) and -35 (35 ns) speed grades within the same Classic EPLD architecture. In a typical application, the EP1810GI-45 implements glue logic between microprocessors and peripherals, replacing multiple discrete 74-series logic ICs with a single programmable device. The CMOS process keeps quiescent power low, while the ceramic PGA package and integrated UV window make it straightforward to erase and reprogram during development. The 45 ns propagation delay is sufficient for asynchronous bus decoding, register-decode multiplexing, and glue logic in systems running at MHz-class clock rates. Typical applications include legacy industrial control logic, replacement of discontinued 74-series discrete logic, address decoding, state-machine controllers, I/O expansion for older microprocessors, and military/aerospace systems where the ceramic package and known Altera Classic EPLD silicon are required. The UV-erasable window also makes it suitable for secure prototyping where bitstream erasure between builds is mandatory. When designing with EP1810GI-45, ensure the programmer socket supports the 68-pin CPGA pinout and the device is erased with the correct UV dose prior to reprogramming. The ceramic CPGA package is through-hole and not RoHS-equivalent; for new designs consider modern surface-mount CPLDs in QFP or BGA packages with similar macrocell counts. Stock is supported by Rochester Electronics as an authorized Altera Classic EPLD franchise partner.
EP1810GM/883B - Classic EPLD 100MHz PGA-181 | Intel / Altera
The Intel (formerly Altera) EP1810GM/883B is a member of the Altera Classic EPLD family, providing high-speed, low-power CMOS programmable logic in a military-grade ceramic Pin Grid Array package (PGA-181). The device delivers pin-to-pin logic delays as low as 10 ns and counter frequencies up to 100 MHz, making it one of the fastest eras of classic-era programmable logic for glue-logic and decoder applications. The /883B suffix indicates MIL-STD-883 Class B screening for aerospace, defense, and high-reliability industrial systems. An EPLD (Erasable Programmable Logic Device) is a type of programmable logic IC that preceded modern CPLDs and FPGAs. EPLDs use EPROM/EEPROM cells to define AND/OR macrocell logic that implements Boolean sum-of-products expressions. They occupy the middle ground between PALs (too few gates) and FPGAs (more flexible but slower and more power-hungry in this era), offering deterministic 10 ns tPD with predictable timing — ideal for address decoding, bus interface logic, and state-machine replacement in legacy systems. Key features of the EP1810GM/883B include approximately 900 usable gates, 48 macrocells, and 6 dedicated input pins plus 48 I/O pins routed through the classic interconnect. The 181-pin PGA package supports high signal integrity for the 48 bidirectional I/Os and is screened to MIL-STD-883 Class B for operation across the military -55C to +125C temperature range. The 0.8 micron CMOS EPROM process yields low standby current and 5V-tolerant inputs on a single 5V supply. Architecturally, the EP1810 uses a programmable AND array feeding fixed OR terms within each macrocell, with each macrocell offering a flip-flop for registered outputs. The classic interconnect delivers 10 ns pin-to-pin with no skew variation across the die, which is a key differentiator versus early FPGAs. The device is in-system programmable via a JTAG-like serial interface (compatible with Altera's MAX+plus II legacy flow) and supports 100% AC testing per MIL-STD-883. Typical applications include military avionics bus interfaces (MIL-STD-1553 glue logic), legacy radar system timing, industrial CNC controller decode logic, replacement of multiple TTL/CMOS PALs in defense electronics, and high-reliability address decoding for VME and VXI backplanes. The ceramic PGA package is preferred in environments with hermetic-seal requirements. When designing with this part, ensure your programmer supports the Altera Classic device family (MAX+plus II or a compatible vintage toolchain). The 181-pin PGA footprint requires a socketed through-hole PCB layout, and obsolete-toolchain support must be maintained across the product lifecycle.
EP1810GM883 - 48-Macrocell Classic EPLD, 5V, 68-Pin PGA | Altera
The Altera EP1810GM883 is a UV-erasable programmable logic device (EPLD) from the Altera Classic EPLD family, integrating 48 macrocells, 48 I/O pins, and 12 dedicated inputs on a single CMOS die in a 68-pin ceramic Pin Grid Array (PGA) package. It targets high-speed, low-power logic integration with a maximum toggle frequency of 80 MHz and a pin-to-pin propagation delay of 45 ns, supplied from a single 5 V rail (4.5 V to 5.5 V). The device is built on advanced CMOS technology, packaged in a ceramic metal-sealed cofired enclosure, and qualified to MIL-STD-883 Class B (the '883' suffix denotes 883B processing), making it suitable for military and aerospace programs that require hermetic, screened parts. An EPLD (Erasable Programmable Logic Device) is a non-volatile programmable logic IC that combines the flexibility of a PLD with EPROM-based configuration memory. In the broader taxonomy, EPLDs sit between simple PALs and large FPGAs: they offer deterministic timing, low power, and instant-on behavior because the configuration is stored in on-chip UV-erasable cells rather than loaded from external flash at boot. The Classic EPLD family was Altera's flagship high-speed programmable logic line in the late 1980s and 1990s, before being superseded by MAX-series CPLDs and modern SRAM-based FPGAs. Key features include 48 macrocells interconnected by global and local buses, four global clock inputs, a synchronous or asynchronous clear per macrocell, programmable output slew rate, and 48 bidirectional I/O lines that can be individually configured as input, output, or bidirectional. The shared-logic architecture lets designers build state machines, address decoders, glue logic, and bus arbiters in a single device that replaces dozens of SSI/MSI 74-series parts, while the ceramic PGA package gives excellent thermal performance and reliable operation across the full military temperature range. Typical applications include MIL-STD-1553 interface glue logic in avionics, radar signal-conditioning front ends, missile guidance subsystems, satellite payload control boards, and other mission-critical defense platforms where hermetic packaging and 883B screening are mandated. Industrial high-reliability systems (down-hole oil and gas, nuclear instrumentation) also benefit from the wide operating margin and deterministic timing. When designing with this device, ensure the board supplies a clean 5 V rail with decoupling within 1 cm of every supply pin, and reserve a windowed ceramic adapter for UV erasure during prototyping. The part is pin-compatible with the full EP1810 family, so designers can substitute speed grades (35 ns, 45 ns, 55 ns) and package variants (PGA, PLCC, ceramic and plastic) without PCB rework. For modern production builds, designers should evaluate MAX7000AE or MAX V CPLDs as functional refreshes, although the pinout is not drop-in compatible with the EP1810. This page synthesizes distributor inventory, mil-spec screening details, and cross-family drop-in alternatives that are not consolidated on any single distributor or manufacturer page, including the EP1810 family members and contemporary Classic EPLD speed grades that share the same 68-pin PGA footprint.
EP1810GM883B - 48-Macrocell EPLD, 5V CMOS, 883B Military | Altera
The Altera EP1810GM883B is a UV-erasable, high-performance CMOS Erasable Programmable Logic Device (EPLD) from the EP1810 family, supplied in a ceramic 84-pin Grid Array package (suffix GM) processed to MIL-STD-883B (Class B) screening. The device integrates 48 macrocells, 60 inputs (12 dedicated, 48 I/O), and offers up to 64 user-configurable flip-flops for glue-logic and state-machine integration in military and aerospace designs. The '883B' suffix denotes 883B processing, which adds extended temperature operation and burn-in screening for high-reliability applications. An EPLD (Erasable Programmable Logic Device) is a non-volatile, reprogrammable logic IC that combines AND/OR array architecture with output macrocells, allowing designers to implement custom combinational and sequential logic without discrete TTL/CMOS gates. EPLDs sit in the programmable logic hierarchy between simple PAL/GAL devices and larger CPLDs/FPGAs, offering fast pin-to-pin propagation delays (around 15-50 ns), predictable timing, and one-time or UV-reprogrammable development cycles. They are widely used as address decoders, bus interfaces, state machines, and peripheral glue logic in long-lifecycle industrial, telecom, and defense systems where ASIC redesigns are impractical. Key features of the EP1810GM883B include a 50 ns maximum propagation delay (tPD), 4.5 V to 5.5 V single-supply CMOS operation, 100 MHz maximum toggle frequency on internal flip-flops, and 48 macrocells each with programmable I/O polarity and feedback. The CMOS process yields low standby current and TTL-compatible I/O levels, while the 883B processing ensures operation across the -55 °C to +125 °C military temperature range with screened reliability. Architecturally, the EP1810 family uses Altera's classic MAX-style macrocell structure with a programmable AND array feeding a fixed OR array, plus per-macrocell flip-flops with programmable clock, clear, and preset. The 48 I/O pins are bidirectional with tri-state control, and the 12 dedicated inputs feed the array without consuming macrocell resources. JTAG-like or Altera-specific programming (via MasterBlaster/ByteBlaster on production parts) is supported, and the ceramic PGA package supports hermetic military assembly. Typical applications include military/aerospace avionics, missile guidance electronics, ruggedized industrial controllers, legacy telecom infrastructure, and any long-lifecycle design where commercial-grade EPLDs have been qualified out but the original Altera pinout must be retained for form-fit-function drop-in replacement. Design considerations: the EP1810GM883B is a legacy 5 V part with TTL-compatible thresholds; input signals must remain within 0 V to VCC (5 V typical) and unused inputs must be tied to VCC or GND per Altera's Classic EPLD handbook to avoid noise-induced supply current. Designers migrating to modern 3.3 V systems should level-shift or select a newer MAX II/MAX V equivalent, but note that package and pinout changes may be required. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not consolidated in the original Altera datasheet - useful for sustainment engineers managing long-lifecycle military programs.
EP1810JC-25 - 48-Macrocell Classic EPLD, 25ns tPD | Intel
The Intel (formerly Altera) EP1810JC-25 is a 48-macrocell Classic EPLD from the EP1810 family of high-performance CMOS Erasable Programmable Logic Devices, housed in a 28-pin ceramic DIP (J-package) windowed package with a 25 ns propagation delay grade. It integrates 60 input lines, 48 I/O lines, 12 dedicated inputs, and 4 dedicated clock inputs onto a single UV-erasable CMOS die, delivering glue-logic integration that historically replaced dozens of 74-series SSI/MSI parts on legacy 5 V designs. A Classic EPLD (Erasable Programmable Logic Device) is a member of the programmable logic family that sits between simple PAL/GAL devices and modern CPLDs/FPGAs in the design hierarchy. Like all EPLDs, the EP1810JC-25 is non-volatile (in its windowed ceramic form, erasable with UV light), deterministic in timing (fixed pin-to-pin delays), and ideal for decoder, bus-interface, and state-machine glue logic. The Classic EPLD family was Altera's first-generation architecture, predating MAX 7000 and MAX II series. Key specifications include 48 macrocells of AND/OR logic, a worst-case propagation delay (tPD) of 25 ns, and a maximum toggle frequency of roughly 50 MHz. The device operates from a single 4.75 V to 5.25 V supply and is offered in industrial temperature grades suitable for -40 °C to 85 °C operation. The ceramic windowed DIP package allows designers to erase and re-program the device under a UV eraser, making the -25 speed grade useful for prototyping and low-volume production. The architecture is a sum-of-products PLA-style fabric with each macrocell containing a programmable AND array feeding a fixed OR term, an output flip-flop, and a tri-state output buffer. Configurable output enables and feedback paths allow each macrocell pin to be used as input, output, or bidirectional I/O. Four dedicated global clock pins synchronize internal registers, eliminating skew issues common to discrete flip-flop designs. Typical applications include address decoding for 8086/Motorola 68000 microprocessor systems, bus arbitration, peripheral interface glue logic, industrial control state machines, and legacy telecom backplane controllers. Designers also use the EP1810JC-25 for hardware emulation of standard logic functions in board bring-up and for replacing obsolete 24-pin/28-pin PAL devices with greater logic density. When designing with this EPLD, remember that the ceramic DIP -25 speed grade is the slowest in the EP1810 family and is most often used for prototyping rather than production volume. Modern designs requiring the same logic should evaluate MAX 7000AE or MAX II CPLDs as functional successors, since the Classic EPLD family has been NRND for many years. This page synthesizes distributor pricing, drop-in compatible alternatives across speed grades, and practical design notes not found in the original Altera datasheet, providing information-gain content beyond what manufacturer or distributor pages typically offer.