FPGA 與 CPLD
產品（7,100+)
APA600-PQ208 - 600K Gate Flash FPGA | Microchip Technology
The Microchip Technology APA600-PQ208 is a ProASICPLUS flash FPGA with 600,000 system gates, 21,504 logic cells, and 158 programmable user I/O positions. It is associated with a 208-pin PQFP package and a 2.5 V nominal supply voltage, with reported operating voltage limits of 2.3 V to 2.7 V. The device supports a commercial temperature grade of 0°C to 70°C. Its 129,024 total RAM bits and nonvolatile flash configuration memory make it suitable for systems that require programmable logic with configuration data retained when power is removed. An FPGA is a programmable semiconductor in the broader hierarchy of digital logic ICs. Whereas a fixed-function logic device implements a predetermined Boolean function, an FPGA uses configurable logic blocks, programmable interconnect, and memory resources to implement a design that can be revised during development. The APA600 belongs to the ProASICPLUS family, which combines flash-based programmability with an ASIC-oriented design flow. ProASICPLUS devices are intended to bridge FPGA flexibility and ASIC implementation efficiency. The APA600-PQ208 provides up to 350 MHz internal system performance and up to 150 MHz external system performance according to family documentation. It also supports 3.3 V, 32-bit PCI operation up to 50 MHz and offers a Schmitt-trigger option. These characteristics make the device relevant to legacy 32-bit PCI interface designs, embedded control systems, communications equipment, industrial controllers, and test systems that need substantial logic density without external configuration storage. The 158 user I/O positions provide connections for clocks, data buses, control signals, interrupts, and peripheral interfaces. The device integrates 129,024 RAM bits for buffers, registers, lookup tables, or other logic-assisted storage. Because the configuration technology is nonvolatile, the programmed bitstream remains available at power-up, supporting deterministic boot behavior in equipment that cannot depend on an external programmable ROM or loader. The package and programming arrangement determine how the device must be implemented on a PCB. Use the Microchip APA600 board-support file and the pin-map information for the exact package when assigning tracks and establishing programming connections. Confirm the target device’s package drawing, speed grade, temperature grade, and ordering-code suffix before releasing a PCB because related APA600 ordering codes can differ in temperature range, speed grade, or package finish. This page combines the available family specifications with practical guidance for FPGA migration, pin mapping, configuration, and application selection. The related APA600-PQG208I is identified as a pin-compatible PQFP-208 alternative with equivalent primary performance characteristics, while related suffix codes should be reviewed for qualification and operating-grade differences before substitution.
APA750-BG456 - 750K Gate 180MHz ProASICPLUS FPGA | Microchip
Microchip APA750-BG456 is a ProASICPLUS field-programmable gate array with 750,000 system gates, 147,456 RAM bits, 356 I/O, and a 456-pin plastic BGA package. The device is built on 0.22 µm CMOS technology and supports a 2.5 V operating supply, with performance listed at up to 180 MHz. It is designed for applications requiring reprogrammable, nonvolatile logic in a high-pin-count package. A field-programmable gate array is a programmable-logic device that combines configurable logic, memory, and I/O resources in one integrated circuit. The APA750 belongs to the ProASICPLUS family, a reprogrammable and nonvolatile FPGA platform positioned between mask-programmable custom logic and higher-density programmable-logic devices. It is useful when a design needs logic changes after manufacture without replacing the entire board assembly. The APA750-BG456 provides 750K system gates, 147,456 RAM bits, and 356 I/O in a 456-PBGA package. The listed operating supply range is 2.3 V to 2.7 V, while the device description identifies 2.5 V operation and up to 180 MHz performance. The commercial-temperature ordering information identifies an operating range of 0°C to 70°C for the APA750-BG456 variant. The ProASICPLUS architecture uses Flash-based configuration technology, allowing the device to retain its programmed configuration without volatile RAM. The high I/O count allows connections to external memory, parallel buses, control signals, and mixed-signal system interfaces. Designers should treat the published gate and RAM figures as device-family resources and verify the exact resource allocation in the design tool for the selected configuration. Typical applications include industrial control, telecommunications interface equipment, instrumentation, embedded data acquisition, and high-I/O peripheral aggregation. The 456-pin package requires careful PCB layout with dense escape routing, ground-plane continuity, and controlled impedance for high-speed interfaces. The large pin count also requires attention to assembly capability, inspection, and thermal spreading beneath the BGA. For a new PCB, use the Microchip pinout and package information to assign power, ground, configuration, clock, and user I/O signals. For a revision using an existing 456-BGA footprint, verify every power rail, configuration pin, and I/O signal against the exact package variant. The APA750-BGG456 is identified as package-compatible in the comparison data, while APA750-BG456I is an industrial-temperature ordering variant with the same 456-BBGA package designation. This product page combines the APA750-BG456 specifications, package details, practical PCB considerations, drop-in comparison options, and sourcing guidance. It helps engineers distinguish the commercial APA750-BG456 from the BGG456 and BG456I variants before committing to a board layout or production BOM.
APA750-PQ208 - 750K Gate Flash FPGA | Microchip | 208-Pin PQFP
The Microchip APA750-PQ208 is a 750,000-system-gate flash FPGA in a 208-pin PQFP package, combining 158 programmable I/O pins with 147,456 bits of SRAM for reconfigurable digital logic. It operates from a 2.3 V to 2.7 V supply, supports surface-mount assembly, and is specified for 0 °C to 70 °C operation. The part belongs to the ProASICPLUS family, which uses nonvolatile flash technology for programmable logic. A field-programmable gate array is a semiconductor device whose digital configuration is programmed after manufacture. Unlike a fixed-function application-specific integrated circuit, an FPGA can implement many logic architectures through a programmable interconnect and configurable logic cells. The APA750-PQ208 is positioned for designs requiring substantial parallel logic, moderate I/O density, dedicated SRAM, and the ability to update a board-level design without replacing the device. Key features include 750,000 system gates, 158 programmable I/O pins, 147,456 bits of RAM, 350 MHz internal system performance, and 150 MHz external system performance. The device also supports 3.3 V, 32-bit PCI operation up to 50 MHz and offers a Schmitt-trigger option. Its 208-pin package and tray packaging support conventional surface-mount PCB assembly. The ProASICPLUS architecture provides flash-based nonvolatile configuration, making the APA750-PQ208 useful for embedded control, communications, industrial automation, instrumentation, and test systems that need programmable logic with stored configuration. The family is positioned between simpler fixed logic and high-end FPGA/CPLD designs where logic density, SRAM availability, and I/O capability are more important than the very high performance or power levels associated with larger devices. Typical applications include PCI peripheral logic, data acquisition, protocol bridging, industrial interface controllers, embedded storage controllers, and instrumentation signal-processing blocks. The 158 user I/Os support connections to external memories, transceivers, sensors, converters, and host buses, while the internal SRAM can support buffering, packet handling, state machines, and local data storage. The principal design consideration is board-level resource planning. Engineers should confirm the exact pin assignments, supported I/O standards, voltage tolerances, configuration requirements, and clocking resources in the manufacturer datasheet before routing the PCB. The 2.3 V to 2.7 V core supply must be generated within the specified limits, and unused I/O behavior should be validated in the final system configuration. This page combines the APA750-PQ208 technical profile, package information, application guidance, comparison parameters, and practical replacement considerations to support component selection and board-design review.
AT40K10-2AJC - 10K Gate FPGA w/ FreeRAM, 84-PLCC | Microchip
The Microchip Technology AT40K10-2AJC is a 5V, 10K to 20K gate AT40K/KLV family Field Programmable Gate Array (FPGA) IC featuring 4608 logic elements, 576 flip-flops, 62 user I/O pins, and built-in FreeRAM distributed SRAM in a 84-pin LCC (J-Lead) package. Per the ATMEL Corporation datasheet (67 pages, 1Mb), this part targets high-performance coprocessor and glue-logic applications where system speeds up to 100 MHz and on-chip multipliers faster than 50 MHz (10 ns pipeline cycle) are required. The '-2' speed grade combined with industrial temperature grading makes the part suited to demanding embedded designs. An FPGA (Field Programmable Gate Array) is a reconfigurable digital integrated circuit that combines programmable logic blocks, programmable interconnect, and configurable I/O on a single die. FPGAs sit above standard logic ICs and below ASICs in the design hierarchy: they offer ASIC-class parallelism and throughput without the NRE mask costs, making them ideal for low-to-mid volume designs, prototyping, hardware acceleration, and custom bus interfaces. The AT40K family adds unique FreeRAM distributed SRAM blocks to the classical FPGA fabric, allowing byte-wide memory access and efficient data-path implementation directly in the fabric. Key features include internal tri-state bus capability for implementing shared-bus architectures without external glue logic, dedicated hardware multipliers (>50 MHz), distributed SRAM via FreeRAM, and JTAG-based in-system programming. The 62 user I/Os support 5V CMOS/TTL signalling and provide flexible voltage translation across mixed-voltage system designs. The 84-pin J-leaded ceramic/PLCC body eases soldering, inspection, and rework during development. Architecturally, the AT40K10 builds on a fine-grained symmetric array with 4-input look-up tables (LUTs) and dual-port FreeRAM cells that double as logic or memory depending on user configuration. The LUT-based fabric delivers efficient state-machine and arithmetic implementation while the FreeRAM supports FIFOs, register files and small cache structures. The 5V core plus tolerant I/O allow direct interfacing to legacy 5V microcontrollers and DSPs. Typical applications include high-performance coprocessor interfacing to 8/16-bit microcontrollers, ASIC prototyping, glue-logic replacement in telecom and industrial control, and parallel DSP pipelines. The FreeRAM blocks make the part especially attractive for register-file and small-FIFO implementation in DSP glue. The 84-LCC J-lead package and the long-lifecycle nature of AT40 silicon also suit long-term industrial programs. When designing with the AT40K10-2AJC, ensure the JTAG chain follows ATMEL's BSDL ordering and provide adequate decoupling (>=0.1uF + 10uF bulk) close to each VCC/IO bank. Confirming timing constraints with the datasheet is critical because the 100 MHz system speed grade assumes worst-case commercial PVT conditions and may derate under industrial temperature operation. This page synthesizes distributor pricing, drop-in alternatives inside the AT40K family, and practical design notes that go beyond what the manufacturer datasheet alone provides.
AT40K10AL-1BQU - 10K Gate 3.3V AT40KAL FPGA | Microchip 144-LQFP
The Microchip Technology (formerly Atmel) AT40K10AL-1BQU is a CMOS Field Programmable Gate Array from the AT40KAL series, integrating 10,000 system gates with up to 50,000 usable gates and 576 logic cells in a 144-pin LQFP package. It operates from a 3.0V to 3.6V single supply, supports 114 I/O pins, and provides 4,608 bits of distributed RAM, running the same Cache Logic architecture that defined the family for high-speed datapath and arithmetic design entry. A field programmable gate array (FPGA) is a reconfigurable semiconductor device whose logic fabric can be programmed post-manufacturing to implement arbitrary digital circuits. In the broader taxonomy, the AT40K10AL-1BQU sits at: FPGA -> programmable logic -> logic IC -> integrated circuit -> semiconductor. Within Microchip's portfolio it occupies the small-density, legacy AT40KAL tier, sitting below AT40K20AL, AT40K40AL, and AT40K80AL. Differentiating features include the patented eight-sided core cell with direct horizontal, vertical, and diagonal cell-to-cell connections, which can implement ultra-fast array multipliers without consuming dedicated busing resources. The device advertises a 1 ns combinatorial pin-to-pin delay class, 2.2 ns CLB propagation, supports 192 user-defined inputs and outputs in its largest package variant, and integrates dual-ported SRAM with Cache Logic configuration for coefficient-based DSP implementation directly in silicon. Architecturally, the AT40K10AL uses a fine-grained symmetric array of Cache Logic Blocks (CLBs), each surrounded by an interconnect network that supports 8-nearest-neighbor routing. This topology delivers predictable short interconnects on almost every path, which is the underlying reason the family is favored for streaming datapaths and image-processing pipelines where routing delay would otherwise dominate. Typical applications span industrial glue logic replacement, high-speed datapath interfacing, image preprocessing front-ends, glue logic replacement for ASIC prototyping on small volumes, and DSP co-processors for embedded vision or motor control. The wide 3.3V IO tolerance lets it bridge 5V legacy buses with level shifters. When designing with this device, confirm availability of the legacy AT40K design tools (Atmel-ISP, Viewlogic, or third-party synthesis via Synplicity/ModelSim/Exemplar) before committing, since the part is no longer recommended for new designs in Microchip's latest product roadmap.
ATF1502AS-10AU44 - 32-Macrocell 5V ISP CPLD, 10ns, TQFP-44 | Microchip
The Microchip ATF1502AS-10AU44 is a 5V, 32-macrocell in-system programmable (ISP) Complex Programmable Logic Device (CPLD) housed in a 44-pin TQFP package, offering 10 ns pin-to-pin propagation delay and up to 36 usable inputs/I/Os in a 750-gate density footprint. Built on electrically-erasable (E2PROM) non-volatile memory technology, the ATF1502AS-10AU44 retains its configuration without external storage and supports field re-programmability through a standard 4-pin JTAG interface. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL-like macrocells, a centralized AND array, and a programmable interconnect on a single chip. In the system hierarchy, CPLDs sit between discrete 74-series glue logic and more complex FPGAs; they are deterministic, run from power-up with zero configuration latency, and provide predictable timing for decoder, bus-interface, and control tasks. The ATF1502AS family targets 5V legacy system designs where modern 3.3V FPGAs are not compliant with the input voltage rails. Key differentiating features of the ATF1502AS-10AU44 include 32 macrocells, up to 32 bidirectional I/O pins plus 4 dedicated input pins, an enhanced routing switch matrix that improves usable gate count, pin-to-pin propagation delay of 10 ns, system frequency up to 100 MHz, and zero-power standby support. The device offers fast in-system programming (ISP) via JTAG, allowing firmware revision updates without removing the part from the board. Power supply operates from 4.5V to 5.5V with typical I/O 5V tolerance. The ATF1502AS-10AU44 is pin-compatible with industry-standard 44-pin TQFP CPLDs and slots into legacy footprints where migration from older Atmel and third-party 32-macrocell CPLDs is required. The enhanced routing switch matrix increases the odds of successful pin-locked design modifications compared to first-generation CPLD architectures. Typical applications include 5V bus interface bridging, address decoding for legacy microcontrollers, glue logic replacement in industrial controllers, I/O expansion for 8-bit and 16-bit MCUs, and power-on sequencing logic in mixed-voltage systems. The 5V-tolerant I/Os allow direct connection to TTL/CMOS logic without external level shifters. For designers, the most critical design tip is to budget adequate decoupling (100 nF X7R plus 10 uF bulk) right at the VCC pins, because CPLD outputs can drive simultaneous switching edges that inject supply noise. Designers should also confirm that any migrated 3.3V firmware does not violate the 5.5V absolute-maximum VCCIO rating during in-circuit programming. This page consolidates distributor pricing, verified same-package drop-in alternatives, and applied design notes not found in the standalone manufacturer datasheet, helping engineers accelerate 5V CPLD selection and sourcing decisions.
ATF1504ASL-25AU44 - 64 Macrocells, 25ns, 5V ISP CPLD | Microchip
The Microchip Technology ATF1504ASL-25AU44 is a 5V, high-performance, In-System Programmable (ISP) Complex Programmable Logic Device (CPLD) from the ATF15xx family, delivering 64 macrocells in a 44-pin TQFP (10x10 mm) surface-mount package. It offers 1.5K equivalent gates, a maximum propagation delay of 25 ns (tPD), and 32 user I/O pins, operating from a single 4.5 V to 5.5 V supply across the industrial -40 C to +85 C temperature range. A CPLD (Complex Programmable Logic Device) is a non-volatile, reprogrammable digital logic IC that combines the instant-on, deterministic timing of PAL/GAL architectures with denser logic capacity, sitting in the programmable logic hierarchy between simple SPLDs and larger FPGAs. CPLDs typically contain multiple PAL-like macrocell arrays interconnected by a central switch matrix, and the ATF15xx family in particular uses 5 V-tolerant EEPROM cells that retain configuration without a separate boot memory, enabling ISP via JTAG (IEEE 1149.1). Key features of the ATF1504ASL-25AU44 include 64 macrocells organized into four logic array blocks, four dedicated input pins, 32 bidirectional I/O pins, a JTAG/IEEE 1149.1 boundary-scan and ISP interface, and a minimum of 10,000 program/erase cycles. The device's 25 ns tPD translates to a usable internal toggle frequency around 50 MHz in registered logic, and its pin-locked timing is deterministic - a key advantage over SRAM-based FPGAs in glue-logic, bus-interface, and state-machine roles. Architecturally, the part uses a non-volatile EEPROM process that gives true zero-power standby with no boot delay, an industrial-grade operating voltage range (4.5 V to 5.5 V), and built-in boundary scan plus ISP that lets designers program, erase, and re-program the device on a populated PCB through standard 4-wire JTAG. Compared with older Atmel ATF1504 AS parts, the ASL suffix adds lower power consumption per macrocell, supporting higher integration at legacy 5 V rails. Typical applications include industrial control glue logic, address decoding and bus interfacing in 5 V microcontroller systems, I/O expansion and pin-count recovery, FPGA configuration loading, and legacy replacement for discrete 74-series glue logic. It is widely used where deterministic propagation delay, instant-on behavior, and ISP capability on a 5 V rail are required. When designing with this part, ensure the 5 V supply rail is well decoupled (typically 0.1 uF ceramic plus 10 uF bulk near each VCC pin) and follow standard JTAG chain guidelines for ISP. Compared with SRAM-based FPGAs, no external configuration memory is required, but the 64-macrocell limit should be respected for fan-in and product-term budgeting. This page synthesizes distributor pricing (as of 2026-10-07), verified drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet, giving a faster engineering decision path for the ATF1504ASL-25AU44.
ATF1504ASL-25AU44 - 64-Macrocell 5V ISP CPLD, 25ns | Microchip
The Microchip Technology ATF1504ASL-25AU44 is a 64-macrocell, in-system programmable (ISP) complex programmable logic device (CPLD) with a 25 ns propagation delay and 60 MHz maximum clock frequency, housed in a 44-pin TQFP package. It operates from a single 4.5 V to 5.5 V supply and provides 32 inputs/I/Os (68 user I/O pins per the device datasheet summary), 64 registers, and 64 macrocells in a low-power "L" process variant. A complex programmable logic device (CPLD) is a non-volatile, electrically erasable digital logic IC that integrates multiple PAL-like macrocell arrays on a single die, with a programmable AND/OR interconnect fabric in between. CPLDs sit between simple SPLD/GAL devices and larger FPGAs in the programmable-logic hierarchy, and are used for glue logic, bus interfacing, state-machine decoding, and high-density combinatorial replacement where deterministic timing and instant-on behavior are required. The ATF15xx series in particular is a 5 V legacy family known for ISP and high pin-keeper drive strength. Key features of this part include 25 ns pin-to-pin propagation delay (tPD), 60 MHz maximum operating frequency, a minimum of 10,000 program/erase cycles, JTAG-based IEEE 1149.1 boundary-scan and ISP, pin-keeper circuits on inputs and I/Os, and programmable power management for low-power macrocell operation. The "L" suffix denotes the lower-power process option; "A" denotes the standard 44-pin TQFP package; "U44" specifies a green / Pb-free TQFP-44 package. The device is built on Microchip/Atmel's proven electrically-erasable (EE) technology, which gives non-volatile storage of the user logic - the part functions at power-up with no external configuration PROM. Architecturally, the four logic blocks each contain 16 macrocells feeding a connected global interconnect, with per-pin output enable, slew-rate, and pin-keeper options set during programming. Typical applications include 5 V bus interface and voltage-translation logic, address decoding and chip-select generation in legacy microprocessor systems, industrial control glue logic, state-machine replacement for discrete 74xx logic, and instant-on control logic in motor drives and instrumentation. The wide 5V nature tolerance and industrial -40C to +85C temperature range also suit harsh environment controllers. When designing with this device, ensure the JTAG chain order is maintained if multiple ATF1504ASL devices share TCK/TMS/TDI, and add a 0.1 uF decoupling capacitor near each VCC pin. The ISP programming voltage is generated internally, so no external 12 V programmer supply is required. Power sequencing is straightforward due to the non-volatile configuration. This page synthesizes Microchip product-page data, distributor pricing from DigiKey/Mouser, and engineering guidance for the ATF1504ASL family - information not found in the standalone datasheet.
ATF16LV8C-15PC - 8-Macrocell EE PLD, 15 ns | Microchip
The Microchip ATF16LV8C-15PC is a high-performance electrically erasable programmable logic device with 8 macrocells, a 15 ns speed grade, and a 20-pin PDIP package. It is designed for legacy control, decoding, address mapping, and general-purpose combinational or registered logic implementations. The device uses proven electrically erasable flash memory technology, allowing its configuration to be reprogrammed without dedicated UV-erasable devices. An EE PLD, also called an electrically erasable programmable logic device, is a semiconductor whose AND-Array and OR-Array logic structure is configured through electrical programming. The ATF16LV8C family is commonly described as a 16V8 device with 8 macrocells. It consolidates functions that otherwise require several 20-pin PAL devices, making it useful for compact glue-logic and industrial-control designs. Key characteristics include a maximum pin-to-pin delay of 15 ns for this speed grade, CMOS- and TTL-compatible inputs and outputs, and operation from a 3 V to 5.5 V supply. The family supports speeds down to 10 ns, while the ATF16LV8C-15PC corresponds to the 15 ns grade. A pin-controlled power-down mode is available, with maximum standby current listed as 5 µA and typical standby current of approximately 100 nA. The ATF16LV8C architecture provides 8 macrocells and dedicated input and output structures for implementing Boolean equations, registered transfer functions, address decoding, and control interlocks. Because it is a PLD rather than a general-purpose microcontroller, the design flow centers on a compiler, assembler, or schematic capture tool that generates the device configuration file. Legacy Atmel and Microchip tools are therefore an important compatibility consideration. Typical applications include industrial control boards, legacy peripheral interfaces, data routers, pulse and state detectors, memory address decoders, and compact control logic in equipment that retains 20-pin PLD footprints. The 3 V operation also suits mixed 3.3 V and 5 V system designs, although input thresholds, output levels, and unused inputs must be checked against the system rails before substitution. For new designs, confirm that the programmed logic file can be regenerated and that the required development software remains available. For repair or redesign work, validate the power-down pin state, output drive requirements, timing budget, and input-level compatibility before treating any 16V8-family device as a drop-in replacement. This page consolidates package details, programming constraints, drop-in alternatives, and application guidance to support legacy PLD maintenance, cross-reference work, and hardware refresh planning.
ATF16LV8C-15PI - 16V8 EE PLD, 8 Macrocells, 15 ns | Microchip
The Microchip Technology ATF16LV8C-15PI is a high-performance 16V8 electrically erasable programmable logic device (EE PLD) built on EECMOS flash technology, providing 8 macrocells and 250 gates in a 20-pin plastic DIP (PDIP) package. The -15 speed grade delivers a maximum pin-to-pin propagation delay of 15 ns, while the -15PI temperature grade targets industrial environments. A programmable logic device, or PLD, is a user-programmable IC whose internal AND/OR logic fabric is configured to implement a custom digital function. In the taxonomy hierarchy, ATF16LV8C belongs to the 16V8 family of simple PLDs, which sit between fixed-logic gates and FPGAs. The 16V8 architecture assigns eight product terms to each of its eight outputs and, according to the manufacturer documentation, incorporates a superset of the generic architecture so it can directly replace the 16R8 family and most 20-pin combinatorial PLDs. Three features define this device class. First, three different modes of operation are configured automatically with software, allowing highly complex logic functions to be realized from a single device. Second, a pin-controlled power-down mode limits active current to a maximum of 5 uA, with typical standby consumption of 100 nA, which suits battery-instrumented designs. Third, CMOS and TTL compatible inputs and outputs allow the device to interface directly with legacy TTL logic without level translation. Low-cost, easy-to-use software tools complete the feature set for design entry. The device supports speeds down to 10 ns across the ATF16LV8C family, and the family is usable with 3.3 V and 5 V supply rails. Typical uses include address decoding, bus arbitration, interface control, industrial control logic, and legacy 16V8/16R8 emulation in cost-sensitive equipment. The ATF16LV8C-15PI is an obsolete part, so procurement should focus on qualified supply channels. Design engineers should note that the 15 ns grade gives more timing margin than the 10 ns grade in new designs while matching the pinout of the original 20-pin DIP footprint. This page consolidates device specifications, drop-in replacement candidates in the same 20-PDIP footprint, and practical design guidance, including programming and power-down considerations that are not obvious from a distributor listing alone.
ATF16V8B-15SC - 15ns 250-Gate Flash PLD | Microchip Technology
Microchip Technology ATF16V8B-15SC is a 250-gate electrically erasable programmable logic device with eight macrocells, 16 inputs, eight I/O outputs, and a 15 ns speed grade in a 20-pin SOIC package. It operates from a 5 V supply and uses CMOS electrically erasable Flash memory for nonvolatile logic configuration. The ATF16V8B architecture emulates many 20-pin PAL devices and provides a superset of generic 16R8 architecture. A programmable logic device, or PLD, is a semiconductor whose internal logic connections can be configured after manufacture. In the product hierarchy, the ATF16V8B is an electrically erasable PLD, commonly called an EEPLD, within the broader FPGA and CPLD category. Unlike a mask-programmed PAL, its Flash configuration can be erased and rewritten, allowing design revisions, prototyping, and small-volume production without changing the device footprint. Key features include eight macrocells, up to 16 inputs, eight I/O outputs, a 15 ns device speed, and 5 V operation. The ATF16V8B family is designed to emulate many 20-pin PALs, while software-assisted configuration modes support registered, combinatorial, and complex logic functions. The manufacturer identifies the package as a green, standard-power 20-SOIC device, making it suitable for compact surface-mount control and decoding logic. Technically, the ATF16V8B combines a programmable macrocell array with electrically erasable Flash memory and a CMOS logic array. Each of its eight outputs can support multiple product terms, and the architecture can supersede 16R8 devices and many 20-pin combinatorial PLDs. The verified product information identifies speeds down to 7.5 ns across the broader family, while the ATF16V8B-15SC suffix specifically denotes the 15 ns grade. Typical applications include industrial control logic, address decoding, protocol translation, state-machine implementation, legacy PAL replacement, and compact glue logic around microcontrollers or FPGAs. Its 20-pin SOIC footprint supports dense PCB layouts where eight programmable macrocells and numerous interconnectable inputs are valuable without moving to a larger CPLD. The primary design consideration is verification of the configured architecture, pin assignment, and timing in the selected programming tool. Because this is a legacy PLD rather than a general-purpose FPGA, engineers should confirm that required input count, output count, registered outputs, and product-term depth are supported before committing it to a new design. This page combines verified manufacturer and distributor information with same-footprint alternatives, parameter comparisons, and practical replacement guidance. It also distinguishes verified electrical and packaging facts from fields that still require confirmation from the manufacturer datasheet, helping engineers select and integrate the ATF16V8B-15SC without relying on unsupported assumptions.
ATF16V8B-15SI - 15ns 8-Macrocell EEPLD | Microchip | 20-SOIC
The Microchip ATF16V8B-15SI is a 15 ns, 8-macrocell electrically erasable programmable logic device (EEPLD) in a 20-pin SOIC package. It provides up to 16 inputs, 8 I/Os, and 250 logic gates for implementing combinational or registered control logic. The device operates from a nominal 5 V supply and is programmed through electrically erasable Flash technology. An EEPLD is a semiconductor that stores a user-defined Boolean function in nonvolatile Flash memory. It occupies the same broad role as a PAL, GAL, CPLD, or FPGA, but combines a relatively small logic array with a simpler programming model. In a system hierarchy, the ATF16V8B belongs to the programmable-logic-device family and provides more integration and reprogrammability than a discrete AND-OR logic implementation. The ATF16V8B family offers 250 gates, standard power operation, a green package, and support for as many as 16 inputs and 8 I/Os. The -15 speed designation corresponds to a 15 ns maximum pin-to-pin delay. Flash-based configuration allows the same device to be reused during development or programmed in the field without removable memory. ATF16V8B devices support several architectures, including combinational, complex combinatorial, registered, and mixed registered/combinational modes. This flexibility makes one part family useful for address decoding, state-machine logic, interface control, Boolean equations, and small glue-logic blocks. Microchip states that the ATF16V8B and ATF16V8C families are pin-to-pin and JEDEC fusemap compatible replacements for GAL16V8-class devices. Typical applications include industrial control boards, legacy peripheral emulation, programmable logic interfaces, decoder and latch circuits, and compact control systems that need nonvolatile combinational or registered logic. The 20-SOIC package also supports designs that require a through-hole-compatible leaded package rather than a fine-pitch surface-mount arrangement. When planning a board, confirm the selected fuse map, speed grade, supply voltage, and pin assignment before generating the programming file. The -15SI ordering code identifies a 15 ns device in the industrial-temperature SOIC package. Use the manufacturer's pin-description table and programming-tool documentation as the authoritative references for board connections and device configuration.
ATF16V8C-5JC - 5ns 16V8 EECMOS PLD | Microchip Technology
The Microchip Technology ATF16V8C-5JC is a 5 ns 16V8-family EECMOS programmable logic device with 8 macrocells, electrically erasable Flash-memory configuration, and a 20-pin PLCC surface-mount package. It operates from a 5 V supply and combines eight configurable outputs with up to 64 product terms. The -5 speed grade provides a maximum pin-to-pin delay of 5 ns, while the -J suffix identifies the PLCC package and the -C suffix identifies commercial temperature operation according to distributor listings. A simple programmable logic device is a form of programmable semiconductor that implements fixed or registered logic functions through user-programmed configuration memory. The ATF16V8C belongs to the SPLD hierarchy within programmable logic devices, combining a PAL-like AND/OR logic architecture with electrically erasable nonvolatile configuration. This architecture supports glue logic, control functions, address decoding, interface adaptation, and other designs that historically used multiple discrete logic ICs or PAL devices. Key features include a maximum propagation delay of 5 ns, eight macrocells, eight outputs with eight product terms each, and compatibility with CMOS and TTL logic levels. It emulates many 20-pin PAL devices and can directly replace the 16R8 family and most 20-pin combinatorial PLDs according to the manufacturer datasheet. A pin-controlled power-down option reduces current consumption to as little as 100 µA when the device is not active. The ATF16V8C architecture supports three operating modes selected automatically by software: combinational, complex-product-term, and registered modes. Automatic mode selection allows one device configuration to cover common PAL-style logic requirements while reducing the need to redesign the JEDEC fuse map for each small change. Electrically erasable Flash technology also permits the configuration to be reprogrammed rather than permanently fused. Typical uses include industrial control-interface logic, telecommunications equipment, consumer electronics, peripheral address decoding, and compact control sequencers. The device is especially useful where several gates, counters, decoders, or PAL-compatible equations can be consolidated into one 20-pin PLCC package. A 5 ns maximum pin-to-pin delay also makes it suitable for moderate-speed control and interface paths where fixed logic is preferable to FPGA configuration overhead. When laying out a replacement board, verify the PLCC footprint, pin-1 orientation, supply decoupling, output enable behavior, and programmed macrocell equations. The 5 V supply requirement is a key constraint because the ATF16V8C is not directly interchangeable with 3.3 V PLDs. Designers should also confirm that the legacy device remains supported by the selected programming toolchain and that the proposed logic does not exceed the available input, output, and product-term resources. This product page combines verified manufacturer and distributor information with practical replacement guidance, package constraints, programming considerations, and same-footprint alternatives for engineers evaluating the ATF16V8C-5JC.
ATF16V8C-7PC - 7.5ns EECMOS 16V8 PLD | Microchip
The Microchip Technology ATF16V8C-7PC is a high-performance EECMOS programmable logic device with eight macrocells, up to 300 gates, a 7.5 ns propagation delay, and a 20-pin PDIP package. It operates from a 5 V supply and is compatible with CMOS and TTL logic levels. The electrically erasable flash-memory architecture supports reprogramming, while the 16V8 architecture can emulate many 20-pin PAL devices and most 20-pin combinatorial PLDs. A programmable logic device is a semiconductor whose internal logic connections are configured after manufacture. The ATF16V8C belongs to the SPLD and PLD hierarchy, where a small collection of configurable AND and OR logic resources replaces a network of individual gates. Its 16V8 organization provides eight inputs and eight outputs, with each output allocated eight product terms. This makes the device useful for compact combinational control, decoding, multiplexing, and Boolean equation implementation. Key features include a maximum pin-to-pin delay of 7 ns for the 7 ns speed option described by the family documentation, standard-power operation, and a pin-controlled power-down option in configurations that provide the relevant control function. The manufacturer documentation also identifies the device as CMOS and TTL compatible. These characteristics make it useful where deterministic logic timing, legacy PAL pin compatibility, and electrically erasable configuration are more important than the density of an FPGA. The ATF16V8C architecture includes three configurable operating modes selected through programming. This flexibility allows a single device to implement registered, combinatorial, or complex programmable-logic behavior, depending on the design and the selected fuse map. Its EECMOS implementation uses electrically erasable flash memory, avoiding one-time-programmable fuse limitations and allowing the same device type to be used in designs requiring configuration changes. Typical uses include legacy PAL replacement, industrial interface decoding, control-panel logic, address decoding, product-term Boolean functions, and compact glue logic around larger processors. The 20-pin PDIP package is particularly useful for through-hole prototypes, repair assemblies, educational systems, and industrial equipment where a socketed or leaded package simplifies inspection and replacement. Designers should verify the fuse map, power-down configuration, input and output logic levels, timing limits, and unused-pin requirements against the manufacturer datasheet before production release. PC programming can be recognized by some standard 16V8 fuse files, while extended-feature configurations may use a separate fuse format. Component marking and system requirements should therefore be checked against the exact programmed device configuration. This page combines the verified ATF16V8C-7PC specifications, manufacturer datasheet links, distributor availability information, qualified drop-in alternatives, and practical design guidance. It also distinguishes documented electrical facts from attributes that require confirmation from a current distributor or device-specific programming record.
ATF22V10C-15JC - 15ns Flash EPLD, 10 Macrocell | Microchip
The Microchip ATF22V10C-15JC is a 5 V electrically erasable programmable logic device built on CMOS Flash memory technology. It provides 500 logic gates, 10 macrocells, and a 15 ns device speed in a 28-pin PLCC package measuring 11.51 mm by 11.51 mm. The device supports in-circuit reprogramming and retains its programmed logic configuration without a separate external memory device. An electrically erasable programmable logic device, or EEPLD, belongs to the programmable-logic-device hierarchy alongside SPLD, CPLD, and FPGA devices. Unlike mask-programmed or fuse-programmed alternatives, the ATF22V10C uses Flash memory to store its configuration electronically. This allows a finished board to be reprogrammed in place, which simplifies production revisions, prototype updates, and field maintenance. Key features of the ATF22V10C family include programmable macrocells, speeds down to 5 ns across the broader family, and low power dissipation with typical standby current reported as low as 10 µA. The -15JC ordering code identifies the 15 ns speed grade and commercial temperature option. Microchip identifies the device as an EEPLD with 10 macrocells, 500 gates, and a 28-PLCC package. The ATF22V10C architecture implements logic through a JEDEC-compatible fuse map. Microchip states that the ATF22V10C family is pin-to-pin and JEDEC fuse-map compatible with the GAL22V10, making it a practical migration path for boards designed around that established programmable-logic footprint. The JEDEC-compatible architecture allows the same device-programming conventions and board-level pin assignments to be retained. Typical uses include bus decoding, address translation, control-signal generation, data-routing functions, and legacy glue-logic replacement. Its 15 ns speed grade is appropriate for general-purpose control logic where the device must operate close to slower TTL or CMOS system buses. The ATF22V10C is especially relevant to maintenance of older industrial, communications, instrumentation, and embedded-control equipment that previously relied on GAL22V10 or comparable 22V10 devices. Designers should verify the exact pin assignment, operating voltage limits, temperature limits, and programming-device requirements in the manufacturer datasheet before substituting it into an existing board. Flash configuration updates require the appropriate programming algorithm and electrical connection sequence. Confirm the -15 speed grade and JC package or temperature suffix against the original BOM rather than relying only on the 22V10 family name. This page consolidates the verified device specifications, manufacturer documentation, programming and pinout references, and practical migration guidance for engineers evaluating the ATF22V10C-15JC as a flash-based 22V10 replacement.
ATF2500C-20GM - 24 Macrocell 5V CPLD, 40-CerDIP | Microchip
The Microchip ATF2500C-20GM is a high-performance, high-density, electrically-erasable Complex Programmable Logic Device (CPLD) delivering 2,500 gates with 24 macrocells and 48 flip-flops in a 40-pin ceramic DIP (CerDIP) through-hole package. It operates from a single 5 V supply with a maximum pin-to-pin propagation delay of 20 ns, and is rated across -55 C to +125 C for high-stress embedded and industrial environments. What is a CPLD? A Complex Programmable Logic Device is a non-volatile, electrically-erasable programmable logic IC that sits between simple legacy PLDs (PAL/GAL) and larger FPGAs in the programmable logic taxonomy (PLD -> CPLD -> FPGA -> programmable logic -> semiconductor). CPLDs offer deterministic pin-to-pin timing, instant-on behavior, modest logic density, and are typically programmed via JTAG or ISP rather than loaded from external memory, which makes them well-suited for glue logic, bus decoding, state-machine control, and I/O expansion in cost-sensitive designs. Key features of the ATF2500C-20GM include a fully-connected AND-array logic architecture with 416 product terms, individually programmable macrocell output polarity, and two flip-flops per macrocell for sequential logic. The device supports JTAG-based IEEE 1149.1 boundary-scan testing, in-system programmability through the standard Atmel/Microchip tool chain, and is pin-compatible with several Atmel ATV2500 predecessors, easing migration from older designs. The ATF2500C family uses an electrically-erasable CMOS process with a proven cell architecture that delivers high gate utilization and predictable timing. Its 20 ns maximum pin-to-pin delay is adequate for decoder, address-mapping, interrupt-control, and peripheral-interface glue logic, while the EEPROM cells provide >10,000 erase/write cycles and support design iteration during development and field updates. Typical applications include industrial control boards, legacy bus-interface adapters, address decoding for microcontroller-based systems, state-machine controllers for motor drives, and glue logic in telecom, aerospace, and military systems where the -55 C to +125 C rating and ceramic package provide required reliability headroom. When designing with this device, plan JTAG signal integrity carefully, provide clean 5 V decoupling, and validate programming using the supported Atmel/Microchip device programmer chain. The ceramic DIP package supports through-hole assembly and socketed programming during development. This page synthesizes distributor pricing, parametric comparison data, and drop-in compatible alternatives for the ATF2500C-20GM that are not consolidated on a single manufacturer or distributor datasheet page.
ATF750C-10PC - 10ns 10-Macrocell 24-Pin DIP CPLD | Microchip
The Microchip ATF750C-10PC is a 10-macrocell high-speed CMOS complex programmable logic device (CPLD) in a 24-pin PDIP through-hole package, with a 10 ns propagation delay and 750-gate logic capacity. It supersedes the classic 22V10 footprint family while remaining backward-compatible with the legacy Atmel ATV750/B/L pinout and JEDEC file. A CPLD (Complex Programmable Logic Device) is a non-volatile, electrically erasable logic IC that implements glue logic, state machines, decoder/encoder functions, and bus-interface adaptation between fixed-function silicon blocks. In the broader taxonomy, ATF750C sits at: CPLD -> programmable logic device (PLD) -> logic IC -> integrated circuit -> semiconductor. The 'C' variant uses standard CMOS I/O; the 'CL' suffix denotes a low-power Edge-sensing variant with 1 mA standby current for battery-backed designs. Key features include a 4.75V to 5.25V single-supply operating range, 10 bidirectional user I/O pins, ten flip-flops with macrocell output polarity control, and zero-power CMOS technology with 100 µA typical standby current. The device is specified across commercial 0°C to 70°C ambient temperature and offers in-system programmability via the Atmel/Microchip standard 4-pin IEEE 1149 JTAG interface on JTAG-equipped derivatives. The ATF750C-10PC uses a sum-of-products AND-OR architecture with feedback paths, output enable control, and buried macrocell registers. Compared to a discrete 22V10 design, it doubles the available product terms per macrocell and adds JEDEC-file compatibility with industry-standard 22V10 tools, simplifying conversion of older PLD designs. Its 10 ns pin-to-pin delay is suitable for decoder, address-mapping, and interrupt-controller tasks rather than high-speed datapath work. Typical applications include 22V10 replacement in legacy glue-logic designs, address decoding and chip-select generation in 8-bit and 16-bit microprocessor systems, bus arbitration and wait-state insertion logic, FPGA configuration I/O expansion, and industrial control logic in long-life equipment. The DIP-24 footprint and 5V supply make it convenient for through-hole prototypes and field replacements of obsolete 22V10 sockets. When designing with this device, plan for a 5V regulated supply and reserve one 0.1 µF decoupling capacitor per VCC pin pair. The 'PC' suffix indicates a commercial-temperature PDIP package - if the application requires industrial temperature range, choose the 'PI' variant; if surface-mount is needed, choose the 'SC' (SOIC-24) variant. Verify timing with the Atmel/Microchip WinCUPL or compatible third-party toolchain rather than relying on legacy datasheet delays. This page synthesizes distributor pricing tiers, drop-in same-package alternatives, application guidance and practical design notes not collected in any single manufacturer document, helping engineers evaluate the ATF750C-10PC against modern CPLD options.
CMXO3LF-2100C-6BG324I - MachXO3LF 2112 LUT FPGA, 324-CABGA | Lattice
The Lattice Semiconductor CMXO3LF-2100C-6BG324I is a member of the MachXO3LF family of non-volatile Field Programmable Gate Arrays (FPGAs) delivering 2112 Look-Up Tables (LUTs) and 75,776 bits of embedded block RAM in a 324-pin chip-array BGA (CABGA) package. It features 279 user I/O pins supporting multiple I/O standards, dual 2.5V/3.3V supply rails, and instant-on via on-chip Flash configuration memory. Operating over the -40C to +100C industrial temperature range with a -6 speed grade, this device targets glue-logic, control-plane, and low-power parallel processing applications. A Field Programmable Gate Array (FPGA) is a semiconductor device containing an array of configurable logic blocks (CLBs), programmable routing, and I/O cells, all of which can be re-programmed in-circuit to implement arbitrary digital logic. FPGAs occupy the middle ground between fixed-function ASICs (high NRE, low unit cost) and microcontrollers (limited parallelism, deterministic firmware). Within the broader taxonomy, the CMXO3LF belongs to the MachXO3LF sub-family: FPGAs optimized for bridging, control logic, and instant-on tasks rather than high-throughput DSP or AI workloads. Key features of the CMXO3LF-2100C include 2112 LUTs (4-input), 75,776 bits of distributed/embedded block RAM, 279 user I/O across multiple banks, embedded block RAM with FIFO support, and on-chip Flash for instant-on configuration. The -6 speed grade and industrial temperature range (TJ -40C to +100C) make it suitable for harsh-environment designs. The 324-CABGA package supports high pin-count designs requiring wide parallel interfaces. Technically, the MachXO3LF architecture combines LUT-based logic fabric with hardened I/O buffers supporting LVCMOS, LVTTL, SSTL, and other signaling standards. On-chip Flash eliminates the need for external boot memory, enabling sub-20 ms configuration times. The 324-CABGA package provides controlled impedance and robust mechanical reliability for industrial PCB assemblies. Typical applications include industrial control and factory automation, bridging between legacy and modern bus protocols (I2C, SPI, UART to parallel), motor control glue logic, LED display controllers, sensor aggregation hubs, and IoT edge nodes. The combination of high I/O count and instant-on makes it ideal for systems that must wake up and respond quickly without external boot devices. When designing with this device, verify that the chosen I/O bank voltages match your downstream peripherals and confirm the JTAG programming chain if in-system reprogramming is required. The 324-CABGA package demands careful PCB layout: controlled-impedance traces, sufficient via-in-pad design rules, and a robust ground plane are essential for signal integrity. This page consolidates distributor pricing, drop-in same-package alternatives, and practical design notes that go beyond the manufacturer datasheet to help engineers select, source, and integrate the CMXO3LF-2100C-6BG324I efficiently.
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.