FPGA & CPLD
Products (6357)
EP20K100FC196-1X - 100K-Gate APEX-20K FPGA, 196-BGA | Altera/Intel
The Intel (formerly Altera) EP20K100FC196-1X is a member of the APEX 20K family of programmable logic devices, providing approximately 100,000 typical gates in a 196-ball FineLine BGA package with a -1 speed grade. The APEX 20K family combines look-up-table (LUT)-based logic elements with embedded array blocks (EABs) for memory and specialty functions, making it suitable for system-on-a-chip style integration. The device is built on a 0.18-micron CMOS SRAM process and supports in-system programmability via the IEEE 1149.1 JTAG interface plus the passive serial configuration scheme. An FPGA (Field-Programmable Gate Array) is a programmable logic device that contains an array of configurable logic blocks (CLBs), programmable interconnects, and dedicated I/O and memory resources. FPGAs belong to the broader category of programmable logic devices (PLDs) which also includes CPLDs (Complex Programmable Logic Devices); FPGAs typically offer higher logic density and richer on-chip memory than CPLDs, at the cost of non-volatile configuration (SRAM-based FPGAs require a configuration memory at every power-up). The APEX 20K family sits at the intersection of FPGA and CPLD architectures, sometimes described as a "programmable logic device with embedded memory." Key features of the EP20K100FC196-1X include a multi-voltage I/O bank structure (1.8V/2.5V/3.3V PCI-compatible interface support), dedicated high-speed interconnect (MultiTrack Interconnect), embedded array blocks that can be configured as RAM, ROM, or FIFO, and built-in clock-management circuitry. The -1X suffix indicates an industrial temperature range with the slowest of the APEX 20K speed grades, trading timing margin for cost savings in non-timing-critical designs. Typical applications include telecommunications line cards, industrial control and factory automation, ASIC prototyping, glue logic integration around microprocessors, and legacy system upgrades. Because the APEX 20K family has been in long-term production and is supported by the Quartus II design software (with project-import paths from MAX+PLUS II), it remains popular for maintenance of installed industrial and telecom systems. When designing with this device, ensure that the configuration memory (typically an EPC2 or EPC8 serial configuration device, or a microcontroller-driven passive serial stream) is correctly sized for the chosen bitstream compression mode, and that the JTAG chain order is preserved across multi-device boards. The 196-BGA package requires careful PCB layout to maintain signal integrity on the high-speed MultiTrack interconnect.
EP20K100FC196-2X - APEX 20K FPGA, 196-Ball BGA | Intel
The Intel EP20K100FC196-2X is an APEX 20K family field-programmable gate array (FPGA) with 4,160 logic elements, supplied in a 196-ball FineLine BGA (FC196) package. The part is an Altera heritage device now carried under Intel Programmable Solutions Group, and it was widely used in mid-density programmable logic designs that require custom datapaths, protocol bridging, and moderate I/O count. An FPGA is an integrated circuit whose logic fabric can be reconfigured after manufacturing using a hardware description language such as VHDL or Verilog. Unlike fixed-function ASICs, FPGAs consist of programmable logic blocks, interconnect resources, and I/O elements arranged to implement arbitrary digital functions. The APEX 20K family is one of the classic Altera FPGA families that used look-up-table (LUT) logic and hierarchical routing to balance capacity, performance, and flexibility for system-level integration. Key features of the EP20K100FC196-2X are its 4,160 logic elements, the 196-ball BGA package, and the -2X speed-grade ordering option. The FC196 package provides a compact array footprint and good thermal behavior compared with QFP packages of the same era. The device is part of the broader EP20K100 family, which includes different package and speed variants designed for communications, industrial control, and test equipment applications. Architecturally, the APEX 20K family was built around programmable logic elements arranged into logic array blocks, with embedded memory support in several family members. The EP20K100 device in the FC196 form factor enables board-level integration without an external microprocessor, implementing functions such as address decoding, protocol conversion, and parallel processing in programmable logic. Exact embedded memory bits and user I/O counts vary by package option and are detailed in the Intel/Altera APEX 20K documentation. Typical applications for the EP20K100FC196-2X include telecom line-card control logic, industrial motion-control interfaces, and test-and-measurement front-end signal processing. Its large BGA pin count supports wide parallel buses and multiple peripheral devices, while the APEX 20K architecture suits synchronous design flows and HDL simulation-based verification. One important design consideration is lifecycle: the EP20K100 family is legacy/obsolete and not recommended for new designs. Engineers must source remaining stock, verify configuration bitstream compatibility, and consider last-time-buy inventory. If an existing production design uses the -2X speed-grade part, a drop-in speed-grade variant such as the EP20K100FC196-1X can be used after timing re-verification. This page synthesizes distributor stock references, speed-grade drop-in alternatives, and practical design notes for the EP20K100FC196-2X, augmenting the limited marketing information available from legacy sources. It is intended for engineers evaluating ECO replacement options and supply-chain teams managing APEX 20K EOL transitions.
EP20K100FC324-1 - APEX-20K FPGA 4160 LE 252 I/O | Altera
The Altera EP20K100FC324-1 is an APEX-20K field-programmable gate array (FPGA) with 4,160 logic elements, 53,248 bits of embedded RAM, and 252 user I/Os, supplied in a 324-ball BGA (FC324) package. It implements Altera's MultiCore architecture, combining look-up table (LUT) logic, product-term logic, and embedded memory blocks, making it suitable for a wide range of programmable system-integration applications. What is an FPGA? A field-programmable gate array is a semiconductor device containing configurable logic blocks, programmable interconnects, and often embedded memory. Unlike ASICs, an FPGA is configured after manufacturing by loading a hardware description or configuration bitstream, allowing rework and field updates. In the system hierarchy, FPGAs sit between CPLDs and ASICs: they provide higher logic density and more embedded memory than a CPLD, while offering faster time-to-market and reconfigurability compared with custom silicon. The EP20K100FC324-1 belongs to the 2.5-V APEX-20K family and requires an external configuration device such as an Altera EPC2 or EPC16. Key features of the EP20K100FC324-1 include 4,160 logic elements, 53,248 total RAM bits, and 252 user I/Os. The APEX-20K MultiCore architecture integrates LUT-based logic, product-term logic, and embedded memory in one device, allowing functions such as state machines, arithmetic datapaths, small FIFOs, and dual-port RAM to be implemented close together. The FC324 package provides a square 324-ball BGA footprint, enabling dense board integration while preserving a practical number of user pins. Technically, the EP20K100FC324-1 is a commercial-temperature APEX-20K FPGA. The core is specified at 2.5 V, and the device is configured from internal SRAM cells after power-up. Because SRAM-based FPGAs are volatile, a configuration PROM, EPC device, or host processor is required to load the design at every power cycle. The device also supports JTAG-based configuration and in-system programming, which simplifies board-level test and debug. Typical applications include telecommunications line-card bridging, industrial control glue logic, protocol conversion, ASIC prototyping, and video/broadcast processing. The 252 user I/Os and embedded memory allow designers to replace multiple discrete logic and memory devices with a single programmable device, reducing board area and BOM complexity. When designing with the EP20K100FC324-1, pay attention to the 2.5-V core supply decoupling and to the external configuration interface: keep the configuration device close to the FPGA, terminate CONF_DONE and nSTATUS pull-ups correctly, and follow the BGA escape routing recommendations from the Altera package guidelines. This page synthesizes distributor availability, same-package drop-in ordering variants, and practical design guidance for the EP20K100FC324-1, providing sourcing and engineering context beyond a bare datasheet listing.
EP20K100FC324-1V - 100K Gates APEX-20K FPGA, 324-FBGA | Intel
The Intel (formerly Altera) EP20K100FC324-1V is a member of the APEX-20K® family of MultiCore field programmable gate arrays (FPGAs) housed in a 324-ball FineLine BGA package (324-FBGA, 19x19 mm). It integrates 53,248 bits of embedded SRAM, 4,160 logic elements, 252 user I/O pins, and is offered in the -1V (commercial, faster) speed grade with a 2.5 V core supply (2.375 V to 2.625 V). The device combines look-up table (LUT) logic, product-term logic, and embedded memory in a single programmable fabric to support high-density system integration. An FPGA (Field Programmable Gate Array) is a programmable logic device that lets engineers implement arbitrary digital logic, state machines, and datapath functions in silicon that can be reconfigured after PCB assembly. APEX-20K devices belong to the high-density programmable logic device (PLD) class, sitting above traditional CPLDs in logic capacity and below ASICs in unit cost at low volume. Within the system hierarchy they are categorized as programmable logic -> programmable logic device -> logic IC -> integrated circuit (IC) -> semiconductor. Key features include 100,000 typical gates, four Phase-Locked Loops (PLUs) for clock management, support for LVCMOS, LVTTL, PCI, SSTL, and GTL+ I/O standards, and embedded array blocks (EABs) for memory-intensive functions such as FIFO buffers and RAM/ROM. The -1V speed grade delivers faster Fmax than the -1 base speed grade for designs with tight timing margins. Fast on-chip interconnect and a rich IP library (PCI, CAM, FIFO, multipliers) accelerate development of communication, networking, and DSP subsystems. The MultiCore architecture combines a logic array, embedded array blocks, and FastTrack interconnect in one fabric, eliminating the need for separate logic and memory devices. Each EAB provides up to 2,048 bits of dual-port RAM, and the interconnect is segmented to minimize routing delay between neighboring logic elements. JTAG (IEEE 1149.1) boundary-scan testing and in-system programmability simplify board-level debug and field upgrades. Typical applications include telecommunications line cards, ASIC prototyping, DSP datapath acceleration, high-speed bus interfaces, and glue logic consolidation. The 252 user I/Os easily accommodate 32-bit/64-bit parallel buses and multiple serial channels. The 324-FBGA package is suitable for high-density multilayer PCBs where signal integrity demands controlled-impedance routing and short stub lengths. When designing with the EP20K100FC324-1V, plan power sequencing for VCCINT (2.5 V) and VCCIO (3.3 V/2.5 V) rails and provide bulk decoupling within 100 mils of each supply pin. Confirm Quartus II (or MAX+PLUS II) tool support for the -1V speed grade and simulate timing closure before tapeout, since speed-grade migration to -2X or -3N is possible but requires re-validation. This page synthesizes distributor pricing, drop-in alternatives within the same 324-FBGA footprint, and practical design notes for the APEX-20K® EP20K100 family not found in the original datasheet alone.
EP20K100FC324-2 - APEX 20K 100K Gates FPGA | Intel / Altera
The Intel / Altera EP20K100FC324-2 is an APEX 20K family Field Programmable Gate Array (FPGA) delivering 100K equivalent gates and 4,160 logic cells, housed in a 324-ball Fine-pitch Ball Grid Array (FBGA) package. It is fabricated on a 0.22 µm CMOS technology with a 2.5 V core supply, supports 252 user I/Os, and targets high-performance programmable logic designs. What is an FPGA? A Field Programmable Gate Array is a programmable logic device (PLD) whose logic, interconnect, and I/O behavior are defined by a user-supplied configuration bitstream rather than hard-wired mask layers. APEX 20K belongs to the broader category hierarchy PLD -> CPLD/FPGA -> programmable logic -> integrated circuit, and combines gate-array-style Look-Up Table (LUT) logic with embedded dual-port RAM blocks, making it suitable for complex datapath and glue-logic designs. Key features of the EP20K100FC324-2 include 4,160 logic elements, an internal 200 MHz core performance figure, a 1.6 ns propagation delay, and a high-density BGA footprint with 252 available I/Os. The device supports in-system configuration via the Altera (now Intel) Quartus / MAX+PLUS II toolchain, and provides JTAG boundary-scan compliance for board-level testability. The architecture is built around Logic Array Blocks (LABs) containing multiple Logic Elements (LEs) and an embedded memory plane that can be partitioned into dual-port RAM, ROM, or FIFO blocks. The 0.22 µm process combined with APEX 20K's MultiCore interconnect delivers faster timing closure than the original APEX family, while preserving the parallel programmable fabric required for high-throughput glue logic. Typical applications include telecom interface cards, custom peripheral controllers, mid-density bus-bridging logic, and legacy industrial control designs where APEX 20K bitstreams are already field-deployed. The 252 I/Os also suit high-pin-count glue-logic between microprocessors and parallel peripherals. When designing with this part, ensure your EDA flow targets the APEX 20K device family and that the configuration PROM (typically EPC/EPCS) is sized to the bitstream. Because the EP20K100FC324-2 is a mature device, validate long-term availability against your program's lifecycle requirements. This page synthesizes distributor pricing, package diagrams, and drop-in alternative guidance that complements the manufacturer datasheet, helping engineers quickly verify fit for legacy APEX 20K designs.
EP20K100FC324-2V - APEX 20K 100K Gates FPGA, 324-FBGA | Altera
The Altera EP20K100FC324-2V is a member of the APEX 20K programmable logic family, integrating 100,000 gates, 416 macrocells, and 53,248 bits of embedded memory in a 324-ball FineLine BGA (FBGA) package measuring 19x19 mm with 1.0 mm ball pitch. Operating from a 1.71 V to 1.89 V core supply (1.8 V nominal) with LVDS I/O support, the device uses Altera's MultiCore architecture that combines lookup-table (LUT) logic, product-term logic, and embedded memory blocks on a single die. An FPGA (Field-Programmable Gate Array) is a programmable logic device that integrates configurable logic blocks, programmable interconnect, and I/O elements. The APEX 20K family belongs to the broader hierarchy of programmable logic devices (PLDs), which also includes CPLDs. FPGAs sit at the high-density end of the PLD spectrum, supporting system-on-a-programmable-chip (SOPC) integration of logic, memory, and sometimes dedicated multipliers or transceivers. APEX 20K was Altera's first family to combine LUT and product-term fabrics, making it suited for register-intensive datapaths alongside combinatorial glue logic. The EP20K100FC324-2V provides 252 user I/O pins plus 4 dedicated inputs, delivering up to 256 total inputs and 252 outputs. It is built on a 0.22 micrometer CMOS process and supports system clock rates up to 167 MHz. The device is designed for SOPC integration, combining multiple logic and memory functions on one programmable die. Typical applications include telecommunications line cards, network switches and routers, industrial control systems, automotive telematics (pre-AEC-Q100 era), DSP pre-processing, and PCI/PCI-X bridge designs. The 324-FBGA package offers high pin density suitable for board-constrained designs where 252 I/Os are needed in a compact footprint. When designing with this device, consider that APEX 20K is a mature, legacy Altera family now supported only through the Rochester Electronics last-time-buy channel and aftermarket distributors. Designers targeting new designs should evaluate modern Altera/Intel Cyclone IV/V or equivalent families; this part is best reserved for sustaining legacy systems.
EP20K100FC324-2X - APEX 20K FPGA 100K Gates 324-BGA | Intel / Altera
The Intel (formerly Altera) EP20K100FC324-2X is a member of the APEX-20K family of Field Programmable Gate Arrays (FPGAs), integrating 100,000 gates and 4,160 logic elements into a 324-ball FineLine BGA package. It is fabricated on a 0.22 µm CMOS process, operates from a 2.5 V core supply, and delivers up to 252 user I/Os with system performance up to 200 MHz. An FPGA (Field Programmable Gate Array) is a programmable logic device that combines configurable logic blocks, programmable interconnect, and dedicated I/O cells, allowing engineers to implement custom digital circuits after PCB fabrication. FPGAs sit within the semiconductor hierarchy between ASICs and CPLDs, offering higher density and speed than CPLDs while preserving the reprogrammability that ASICs lack. The APEX-20K series was Altera's first family to embed MultiCore architecture, pairing look-up-table based logic elements with embedded array blocks (EABs) for on-chip memory. Key features of the EP20K100FC324-2X include 4,160 logic elements, 100K typical gates (263K maximum system gates), 53,248 bits of embedded RAM distributed across embedded array blocks, and 252 programmable user I/O pins supporting multiple I/O standards such as LVTTL, LVCMOS, PCI, and SSTL. The device supports in-system programmability through the IEEE 1149.1 JTAG interface and is configured via a serial or parallel configuration scheme. The architecture combines four-input look-up-table logic elements, embedded array blocks for synchronous RAM/ROM, and FastTrack interconnect for predictable timing. The -2X speed grade offers an internal propagation delay around 1.6 ns per logic element, enabling the 200 MHz system clock operation advertised by the manufacturer. Typical applications for this FPGA include glue logic for telecom line cards, custom interface bridging (PCI to local bus), digital signal processing front-ends, industrial control and instrumentation, and legacy replacement of multiple 74-series TTL devices. The wide I/O count also makes it useful for video processing and parallel data acquisition. When designing with this part, ensure the 2.5 V core and 3.3 V I/O supplies are properly sequenced, the configuration EPROM or JTAG loader is correctly wired, and decoupling follows the manufacturer's reference schematic. This device has reached end-of-life; new designs should consider Cyclone or Cyclone II families.
EP20K100FC324-3 - APEX 20K 100K Gates FPGA 324-FBGA | Intel
The Intel EP20K100FC324-3 is a member of the APEX 20K family of programmable logic devices (PLDs) manufactured on a 0.22 µm CMOS process, delivering 100K system gates and 4,160 logic elements in a 324-pin Fine-pitch Ball Grid Array (FBGA) package with 252 user I/O pins. The device operates from a 2.5 V core supply, supports a maximum internal clock frequency of 167 MHz, and is specified for the commercial 0 °C to 85 °C temperature range. The -3 speed grade identifies the slowest of the APEX 20K speed bins and is intended for cost-sensitive applications where timing margins are relaxed. A Field-Programmable Gate Array (FPGA) is a type of programmable logic device (PLD) that combines configurable logic blocks, programmable interconnect, and embedded memory arrays on a single die. Within the broader semiconductor taxonomy, FPGAs sit under programmable logic -> logic ICs -> integrated circuits. The APEX 20K family further extends the FPGA concept by integrating dedicated Look-Up Table (LUT) logic with Embedded System Blocks (ESBs) that can be configured as dual-port RAM, ROM, or CAM, allowing designers to implement system-on-chip glue logic, bus interfaces, and DSP datapaths in a single device. Key features of the EP20K100FC324-3 include 4,160 logic elements, 53,248 RAM bits organized across embedded system blocks, 252 user I/Os, multi-voltage I/O support for interfacing with 1.8 V, 2.5 V, 3.3 V, and 5 V buses, and in-system programmability via an IEEE 1149.1 JTAG interface. The architecture exposes a four-level hierarchical routing network with dedicated clock trees and phase-locked loops (PLLs) for clock management. Compared with the APEX 20KE successor family, the original APEX 20K silicon uses a 0.22 µm process node, whereas 20KE moves to 0.15 µm all-layer copper to deliver roughly 35 % higher performance. Typical applications include telecommunications backplane glue logic, industrial control and machine automation, military and aerospace signal processing, embedded DSP pre-/post-processing, and PCI bus bridge designs. The wide I/O count and embedded memory also make the part suitable for protocol bridging between legacy microprocessors and modern peripherals. When designing with the EP20K100FC324-3, use the Altera Quartus II (legacy) or MAX+PLUS II development toolchain and verify that the -3 speed grade meets timing closure for the target fMAX. Note that the APEX 20K family has been superseded by newer Stratix and Cyclone device families, and long-term production parts are typically serviced through licensed franchises such as Rochester Electronics.
EP20K100FC324-3V - APEX 20K FPGA, 100K Gates, 324-BGA | Altera
The Altera (Intel Programmable Solutions Group) EP20K100FC324-3V is a member of the APEX 20K family of field programmable gate arrays (FPGAs) delivering 100,000 system gates, 4,160 logic elements, and 53,248 bits of embedded memory in a 324-pin FineLine BGA (FBGA) package. Built on a 0.22 µm CMOS process and powered by a 2.5 V core supply, the device integrates MultiCore architecture combining lookup-table (LUT) logic, product-term logic, and embedded system blocks (ESBs) for true system-on-a-programmable-chip (SOPC) integration. An FPGA (Field-Programmable Gate Array) is a semiconductor device whose digital logic and routing are defined after manufacturing by the end user, sitting in the broader taxonomy of programmable logic devices (PLDs) -> programmable logic -> logic ICs -> integrated circuits. FPGAs are typically deployed in parallel processing, high-bandwidth data path, and glue-logic roles where microcontrollers or fixed-function ASICs lack the required throughput, IO flexibility, or time-to-market. APEX 20K extends PLDs beyond glue logic by integrating dedicated memory and product-term resources on die. Key features include 252 user I/O pins, a 252-bit internal configuration, and a 3.6 ns pin-to-pin delay grade (-3V speed grade). The 324-FBGA (19 x 19 mm) package supports high-density board integration and full MultiCore architecture for register-intensive and datapath designs. The 4,160 logic elements are organized as 416 LABs/CLBs, enabling both fine-grained state machines and wide datapath functions in a single device. The MultiCore fabric combines an LUT-based logic array, an embedded memory array (ESBs), and a product-term plane optimized for fast arithmetic, FIFO, and CAM functions. The 0.22 µm process with 2.5 V core and 1.71 V to 1.89 V supply range provides a balance of integration density and I/O performance, with LVDS-capable I/O support on selected banks for high-speed serial links. Typical applications include communications infrastructure (line cards, bridges, routers), industrial control and instrumentation, DSP co-processing, and PCI/embedded processor bridges. The combination of embedded memory, fast IO, and SOPC integration suits designs where a microcontroller cannot meet throughput and an ASIC is not justified by volume. When designing with this device, plan pin assignments against the 324-FBGA escape routing and verify the Quartus toolchain supports the -3V speed grade. The APEX 20K family is mature and on a long-term support track; verify long-term supply with the manufacturer before high-volume commitment. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, intended as an engineering supplement to the official Altera documentation.
EP20K100QC208-1 - APEX 20K FPGA 100K Gates 208-Pin PQFP | Altera
The Altera EP20K100QC208-1 is an APEX 20K family Field-Programmable Gate Array (FPGA) with 100K equivalent gates, 4160 logic elements, and a maximum core frequency of 250 MHz, housed in a 208-pin Plastic Quad Flat Pack (PQFP) tray package. It is manufactured on a 0.22 µm (some sources cite 0.15 µm all-layer copper) CMOS process and operates from a 2.5 V core supply. The device integrates an embedded array block architecture that pairs look-up-table (LUT) logic with dedicated memory blocks, enabling efficient implementation of wide datapaths, FIFOs, and on-chip RAM. The PQFP-208 pinout exposes up to 159 user I/Os, providing generous connectivity for parallel buses and standard digital interfaces. An FPGA (Field-Programmable Gate Array) is a programmable logic device that combines configurable logic blocks (CLBs), programmable interconnects, and I/O cells on a single silicon die. In the broader taxonomy, an FPGA sits inside the programmable logic category alongside CPLDs, and above that the integrated circuit (IC) hierarchy. APEX 20K devices are SRAM-based, meaning configuration data must be loaded from an external PROM or microcontroller at every power-up, which makes them reprogrammable in-system but volatile. The "20K" prefix in the family name indicates the use of MegaLAB structures that combine multiple Logic Array Blocks (LABs) for higher density. Key features of the EP20K100QC208-1 include 26,624 typical gates, 4,160 logic elements, 53,248 bits of embedded RAM distributed across embedded array blocks, 4 phase-locked loops (PLLs) for clock synthesis, and multi-standard I/O support including LVTTL, LVCMOS, PCI, and GTL+. The -1 speed grade corresponds to the slowest of the three available grades (-1, -2, -3) for the APEX 20K family, offering a tPD of about 1.6 ns as cited in third-party datasheet summaries. The 2.5 V core is supplemented by separate VCCIO banks that can be powered to interface with 3.3 V, 2.5 V, or 1.8 V logic families. Architecturally, the EP20K100QC208-1 is built around MegaLAB columns that group 16 LABs and one embedded system block (ESB). Each ESB can be configured as either dual-port RAM, single-port RAM, ROM, or product-term logic, giving designers a flexible mix of LUT-based and product-term-based resources on the same die. The four PLLs support clock multiplication, division, phase shifting, and external feedback, which is essential for source-synchronous interfaces and frequency synthesis. Typical applications for the EP20K100QC208-1 include telecommunication line cards, industrial control and factory automation, medical imaging front-ends, networking switches and routers, and legacy PCI bus bridges. Designers choose APEX 20K for mid-density glue-logic consolidation, bus-interface bridging, or prototyping designs destined for Altera's higher-density Stratix or Cyclone families. When designing with this part, note that PQFP-208 has a relatively large 28 x 28 mm footprint and 0.5 mm lead pitch, requiring a multilayer PCB with sufficient via density. The SRAM-based configuration needs a serial or parallel configuration PROM such as the EPC2 or EPC16, and the JTAG chain must include the EPC device for in-system programming support. This page synthesizes distributor stock and pricing, pin-compatible APEX 20K drop-in alternatives from the Site MPN list, and practical design notes for legacy systems not found in the manufacturer datasheet.
EP20K100QC208-1N - 100K APEX 20K FPGA, 208-PQFP | Intel
The Intel EP20K100QC208-1N is a member of the APEX 20K family of programmable logic devices (PLDs), delivering 100K typical gates and 4,160 logic elements in a 208-pin Plastic Quad Flat Pack (PQFP) package with 0.5 mm terminal pitch. The device combines fine-grain logic, embedded system blocks (ESBs) for memory, and high-speed I/O in a single chip fabricated on a 0.22 µm CMOS process. A speed grade of -1 places it among the highest-performance members of the APEX 20K family, supporting up to 250 MHz internal operation. A programmable logic device (PLD) is a semiconductor whose logic function is defined by user-loaded configuration data rather than by factory mask programming. Within that hierarchy, a field-programmable gate array (FPGA) such as the APEX 20K contains an array of configurable logic blocks (CLBs), routing resources, and I/O cells. The APEX 20K family further introduced embedded system blocks that provide dual-port RAM, content-addressable memory, and product-term logic, blurring the line between FPGA and complex PLD (CPLD). The 'QC208' suffix denotes the 208-pin PQFP package, while '-1N' indicates the -1 speed grade in a commercial 0–85 °C temperature range. Key features include 159 usable user I/Os, four dedicated fast inputs for high-fanout clocking, on-chip phase-locked loops for clock multiplication and deskew, and JTAG-based in-system programmability (ISP). The 2.5 V core supply (VCCINT) is supported by a multi-voltage I/O ring that can be configured for 2.5 V, 3.3 V, or 5 V interfaces using separate VCCIO banks. Embedded system blocks deliver up to 53 Kbits of dual-port RAM while remaining bit-stream-compatible with the APEX 20KE generation. Architecturally, the EP20K100 partitions into MegaLAB structures that each contain 16 logic elements and one ESB. Carry-chain and cascade-chain interconnects accelerate arithmetic and wide fan-in functions, while MultiTrack routing provides predictable timing closure for high-speed designs. The device is in-system programmable through the IEEE 1149.1 (JTAG) port, supporting background reconfiguration without halting the application. Typical applications include telecommunications line cards, industrial control and machine vision, military and avionics signal processing, and prototyping of ASIC functionality. The 208-pin PQFP package is hand-solderable and socket-compatible, making the part a popular choice for legacy designs and lab validation. The EP20K100QC208-1N is also commonly used as a glue-logic replacement for multiple 74-series TTL devices. When designing with this device, verify the Quartus or MAX+PLUS II toolchain supports the targeted density and that JTAG chain provisioning is allocated on the board. The 208-pin PQFP offers fewer I/Os than the BGA-652 variant of the same silicon, so designers migrating between packages must re-validate pin assignments. For new designs, Intel recommends the Cyclone series instead. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, including source-traced specifications, EOL-aware cross references, and AEO-optimized answers to the questions procurement and design engineers actually ask.
EP20K100QC208-2 APEX-20K FPGA 263K Gate 4160 LE | Altera
The Altera EP20K100QC208-2 is a 263,000-gate APEX-20K Field Programmable Gate Array (FPGA) containing 4,160 logic elements, 416 LABs, 53,248 RAM bits, and 159 user I/Os, supplied in a 208-pin BFQFP/PQFP surface-mount package and rated for the 0 °C to 85 °C commercial operating range. Mouser and DigiKey list the device as an APEX-20K programmable logic device with 4,160 logic elements/cells and 159 I/O pins, while Rochester Electronics supplies the legacy Altera inventory. An FPGA is an integrated circuit whose logic blocks and interconnect can be reconfigured after manufacturing, allowing hardware functions to be changed in the field or during development. The APEX-20K family occupies the programmable-logic space between CPLDs and larger array FPGAs: it combines moderate logic density, embedded memory, and wide I/O for applications such as communication bridging, industrial control, video processing, and test equipment. This EP20K100QC208-2 is an early-2000s Altera architecture now handled mainly through legacy-stock distributors. The key features of EP20K100QC208-2 include 263,000 typical gates, 4160 logic elements, 416 LABs/CLBs, 53,248 total RAM bits, and 159 user I/O pins. The 208-lead BFQFP package enables dense board layouts with a square 28x28 mm body and gull-wing terminals. The -2 speed grade is the mainstream mid-speed ordering option in the original APEX-20K QC208 group, widely used in legacy telecom, industrial, and measurement platforms where the design is already fitted to this exact footprint. The APEX-20K architecture uses a programmable logic core with JTAG-based in-system configuration and supports external configuration devices. The logic elements are grouped in LABs, giving a predictable route from HDL synthesis to place-and-route. With 159 I/Os, the device can bridge processor buses, memory interfaces, and peripheral logic, while the embedded RAM bits are useful for FIFOs and small frame buffers without external SRAM. Typical applications include legacy telecommunication line-card glue logic, industrial control I/O expansion, broadcast video format bridging, test-and-measurement instrument logic, and educational FPGA prototyping. Because this is an older programmable-logic device, most current demand is for maintaining existing production systems, replacing failed boards, or supporting installed equipment rather than for new high-volume designs. Designers must verify the exact VCC specification from the authoritative APEX-20K datasheet; one distributor listing on the 2026-09-07 search shows 1.71 V to 1.89 V, while Altera ordering conventions for a non-E APEX-20K often imply a 2.5 V family device. Use adequate VCC decoupling and confirm the configuration-device interface before committing a repair or bridged design. This page aggregates distributor availability, package data, drop-in QC208 alternatives, and practical legacy-design notes not found in a plain manufacturer datasheet, helping engineers and buyers source this obsolete FPGA with more confidence.
EP20K100QC208-2X - APEX 20KE 100K Gates FPGA 208PQFP | Intel
The Intel (formerly Altera) EP20K100QC208-2X is a member of the APEX 20KE programmable logic device family that delivers 100,000 system gates, 4,160 logic elements, and 53,248 bits of embedded memory in a 208-pin Power QFP (PQFP/BQFP) package. The device operates from a 2.375 V to 2.625 V core supply (1.8 V I/O standard variant) and supports 159 user I/O with multi-voltage I/O capability, making it suitable for mixed-voltage system designs. The "QC208" package suffix denotes the 208-pin plastic QFP form factor, while "-2X" indicates the speed grade and lead-free / extended temperature option. An FPGA (Field-Programmable Gate Array) is a semiconductor device containing an array of configurable logic blocks (CLBs), programmable interconnect, and I/O cells that the user can re-program after manufacture to implement arbitrary digital logic. The APEX 20KE family pioneered the MultiCore architecture, integrating look-up table (LUT) logic, product-term logic, and embedded system blocks (ESBs) on a single die - this combination enabled SOPC (System-on-a-Programmable-Chip) integration before that term became mainstream. FPGAs sit hierarchically under programmable logic devices (PLDs) and above fixed-function ASICs in the digital design taxonomy. Key features of the EP20K100QC208-2X include the MultiCore architecture combining LUT and product-term logic, 53248 bits of embedded SRAM distributed across embedded system blocks, four Phase-Locked Loops (PLLs) for clock management, and LVDS-compatible I/O support at 1.8 V. The 0.22-micron CMOS process node and 2.5 V core supply deliver a balance of density and power efficiency for the era. With 159 user I/O and a 200 MHz internal performance target, the device bridges moderate-density logic integration with high pin-count board-level connectivity. Typical applications include telecommunications line-card interface logic, industrial control glue logic, peripheral bridging (PCI to local bus), custom DSP co-processors, and pre-silicon prototyping for ASIC designs. Engineers often deploy the APEX 20KE in legacy systems where the part has already been qualified into long-lifecycle equipment. The 208 PQFP form factor also supports hand-soldering and inspection workflows that fine-pitch BGA packages cannot accommodate, which matters for low-volume or ruggedized programs. When designing with this device, use the Altera Quartus II (MAX+PLUS II for legacy flows) design toolchain for synthesis, place-and-route, and bitstream generation. Pay close attention to I/O bank voltage grouping and supply decoupling - the 2.5 V core and multiple I/O voltages each require their own bypass network. The device is now classified as a legacy / mature product, so confirm long-term supply with the manufacturer before committing to new designs. This page synthesizes distributor pricing, package cross-reference, and practical design considerations drawn from the original APEX 20KE datasheet family - context that manufacturer datasheets alone do not aggregate into a single comparison view.
EP20K100QC208-3N - APEX 20K FPGA, 100K Gates | Intel
The Intel (Altera) EP20K100QC208-3N is an APEX 20K programmable logic device providing 100K system gates, 4,160 logic elements/cells, and 159 user I/O pins in a 208-pin QFP package. It is part of the Altera APEX 20K family, operating from a 2.5 V core supply and offering a typical clock-performance class of 167 MHz according to Intel/Altera distributor summary data. What is an FPGA/CPLD programmable logic device? An FPGA, or field-programmable gate array, is an integrated circuit containing programmable logic blocks and programmable interconnects that can be configured after manufacturing. CPLD, or complex programmable logic device, is a denser programmable logic architecture often used in glue logic and control applications. The APEX 20K family occupies a hybrid position in this hierarchy, providing gate-array-like densities with programmable logic elements, embedded memory, and I/O flexibility. In a system hierarchy, this part sits between small CPLDs, such as MAX 7000 devices, and large transceiver-based FPGAs, giving designers a medium-density programmable-logic solution for parallel processing and bus interfacing. Key features include 100K gates, 4,160 logic cells, 159 user I/Os, 208 terminals with gull-wing construction, and a 2.5 V core supply. The QFP package code is FQFP with a square body, making it well suited for through-board-level integration on traditional surface-mount assembly lines. The N suffix in the ordering code indicates the lead-free device version, an important factor for RoHS-sensitive production environments. This device supports the APEX 20K architecture, which combines look-up table logic, product-term macrocells, and ESB embedded-system blocks. Technical depth for this part comes from the APEX 20K family architecture and its 0.22 um fabrication process. The device is listed as a LOADABLE PLD by distribution parametric systems, with terminal form of gull wing and package shape square. As a -3 speed grade, it sits below the faster -1 and -2 speed-bin variants in the same package family. Typical performance of 167 MHz in the APEX 20K family gives the EP20K100QC208-3N enough headroom for many communication-bridge, industrial-control, and display-interface applications, although exact achievable fMAX depends on the design, routing, I/O loading, and timing constraints. EP20K100QC208-3N is applicable in telecommunications line-card termination, networking protocol bridging, industrial control boards, test instrumentation, and embedded video/image capture paths where medium-density programmable logic with 159 I/Os is sufficient. Because it has no high-speed serial transceivers, it is most appropriate for parallel bus logic, address decoding, state-machine control, data buffering, and interface adaptation. The 2.5 V core and QFP package allow straightforward power-plane design and conventional PCB fan-out. A key design consideration is configuration memory: APEX 20K devices are SRAM-based and require an external configuration EPROM or download cable at power-up. Use an Altera EPC2 or EPC16 configuration device, or a JTAG-based configuration controller, and confirm that the configuration voltage and I/O-bank voltages match the surrounding system. The -3N lead-free finish should be reflected in the solder profile used during board assembly. This page synthesizes distributor listings, package attributes, drop-in speed-grade alternatives, and practical design notes for the EP20K100QC208-3N. It adds information-gain value beyond a bare datasheet by consolidating live availability, cross-reference candidates, and selection guidance in one structured format.
EP20K100QC240-1 - APEX 20K FPGA 100K Gates 240-PQFP | Intel
The Intel EP20K100QC240-1 is a member of the APEX 20K family of Field-Programmable Gate Arrays (FPGAs), integrating 100,000 typical gates and 4,160 logic elements (LEs) into a 240-pin Plastic Quad Flat Pack (PQFP) surface-mount package. Built on a 0.22 µm CMOS process with a 2.5 V core supply, it delivers a maximum internal clock frequency of 250 MHz and supports 189 user I/O pins, making it suitable for high-density glue-logic, bus-interface, and DSP pre-processing applications in telecom, industrial, and embedded systems. An FPGA (Field-Programmable Gate Array) is a type of programmable logic device (PLD) that allows designers to configure digital logic blocks and interconnect after manufacture. Within the broader taxonomy, an FPGA sits between a CPLD (Complex Programmable Logic Device) and an ASIC (Application-Specific Integrated Circuit): more flexible than an ASIC and higher density than a CPLD. The APEX 20K series introduced embedded dual-port RAM blocks and a MultiCore architecture combining look-up tables (LUTs) with product-term logic, allowing a single device to replace discrete SRAM, ROM, and glue logic on legacy system boards. Key features of the EP20K100QC240-1 include 4,160 logic elements, 53,248 RAM bits, 189 maximum user I/O, a -1 speed grade targeting 250 MHz Fmax, JTAG-based IEEE 1149.1 boundary-scan support, and in-system programmability via the Altera (now Intel) Quartus and MAX+PLUS II toolchains. The 2.5 V core with 3.3 V-tolerant I/O simplifies interfacing to legacy 5 V-tolerant bus transceivers through external series resistors. The 240-pin PQFP with 0.5 mm pitch supports hand-soldering for prototypes and standard surface-mount assembly for production volumes. Typical applications include PCI bridge designs, telecom line-card glue logic, network router backplane interfaces, industrial motor-control state machines, and migration paths for legacy APEX 20K prototypes still in field service. With a 0 to 85 °C commercial operating-temperature range, this part targets benign-environment embedded systems rather than automotive or extended-industrial deployments. When designing with this device, plan JTAG chain access early and verify Quartus II version compatibility - newer Intel Quartus releases have dropped APEX 20K device support. For new designs, evaluate Cyclone IV or MAX II as the modern equivalent family, since APEX 20K silicon is mature and approaching end-of-life availability through authorized distributors.
EP20K100QC240-1XV - APEX 20K 100K-Gate FPGA, 240-PQFP | Intel / Altera
The Intel (formerly Altera) EP20K100QC240-1XV is a member of the APEX 20K family of programmable logic devices (PLDs) featuring 100,000 system gates, 4,160 logic elements (cells), and 53,248 bits of embedded memory. Housed in a 240-pin PQFP (Plastic Quad Flat Pack) package, this device combines LUT-based logic, product-term logic, and embedded memory blocks on a single die to deliver system-on-a-programmable-chip (SOPC) integration. It operates at a nominal 2.5V core supply (range 2.375V to 2.625V) with 5V-tolerant I/O and supports up to 189 user I/O pins, of which 4 are dedicated inputs. A Field-Programmable Gate Array (FPGA) is a semiconductor integrated circuit that can be electrically programmed to implement any digital logic function. Within the broader hierarchy, the EP20K100QC240-1XV sits as a PLD > FPGA > SRAM-based reprogrammable FPGA > fine-grained LUT architecture device. APEX 20K extends the classic LUT-plus-product-term hybrid approach pioneered by Altera, allowing register-intensive datapaths, finite-state machines, and moderate-density memory blocks to coexist on one chip without external glue logic. The MultiCore architecture integrates LUT logic for register-intensive functions, product-term logic for wide combinatorial decode, and embedded system blocks (ESBs) for on-chip RAM or ROM. Key features of the EP20K100QC240-1XV include a propagation delay of approximately 2.5 ns and an internal core frequency of up to 250 MHz. The device includes 4 phase-locked loops (PLLs) for clock management and skew control, supports in-system programming via JTAG, and provides configurable I/O standards. The 240-pin PQFP body measures 32 mm x 32 mm with a 0.5 mm lead pitch and gull-wing terminations suitable for surface mounting. Industrial temperature variants (suffix-less) span 0C to +85C. The APEX 20K family was the industry's first PLD family to integrate SOPC capability, blurring the line between traditional FPGAs and system-on-chip solutions. By embedding dedicated arithmetic blocks, memory, and PLLs alongside general-purpose logic, the EP20K100 enables designers to consolidate what previously required a CPLD plus a separate SRAM plus clock buffers onto a single chip, reducing board area, BOM count, and design complexity. Typical applications include telecommunications line cards, industrial control and factory automation backplanes, DSP pre/post-processing front-ends, PCI bus bridges, and custom peripheral controllers for embedded systems. The 240-pin PQFP footprint suits legacy through-hole-style reflow profiles, making this part a drop-in solution when modern BGA-only successors cannot be retrofitted onto an existing PCB. When designing with this part, ensure the configuration device (EPC or enhanced) is sized for the bitstream and that JTAG chain integrity is preserved across multiple EP20K devices. Note that the -1XV suffix denotes the extended-temperature / speed-grade 1 variant; verify tpd and fMAX against the timing model in the Altera APEX 20K datasheet before board bring-up. This page synthesizes distributor pricing, lifecycle status, package-level drop-in alternatives from the APEX 20K family, and practical design notes not consolidated in the manufacturer datasheet - offering information gain beyond the original Altera documentation.
EP20K100QC240-2 FPGA - 4160 LE, 189 IO | Altera
The Altera EP20K100QC240-2 is an APEX-20K field-programmable gate array (FPGA) containing 4,160 logic elements, 189 user I/O pins, and 53,248 RAM bits, with a 100K typical gate count and 263K maximum system gates. It operates from a nominal 2.5 V core supply and is supplied in a 240-pin BFQFP (plastic quad flat pack) package with 0.5 mm terminal pitch. This is the -2 speed grade variant of the EP20K100 QC240 family. An FPGA is a programmable logic device whose logic blocks and routing can be configured after manufacturing by loading a bitstream. In the IC hierarchy FPGA -> programmable logic device -> integrated circuit, the EP20K100 belongs to Altera's APEX-20K family, which combined look-up-table logic and embedded memory to serve mid-density digital designs. Configuration bitstreams are held in SRAM cells and must be loaded at power-up unless a configuration device or controller manages it. Key differentiators of the EP20K100QC240-2 include 4,160 logic elements, 189 user I/O, 53,248 RAM bits, 2.5 V core operation, and 240-pin BFQFP packaging. Distributor snippets identify 200 MHz internal operation, 3 ns propagation delay, and CMOS 0.22 µm process technology. These features suit designs that need more I/O and memory than a small CPLD but do not require the density of a modern large FPGA. The APEX-20K architecture uses a hierarchical interconnect scheme with LABs, embedded system blocks, and fasttrack routing. The EP20K100 variant contains 416 LAB/CLB blocks feeding 4,160 logic elements. The 240-pin package exposes 189 user I/O pins, leaving the remaining pins for power, configuration, and JTAG. Because this is an older part family, design entry is handled by the Altera/Quartus tool flow and the device is configured through Jam/STAPL or passive serial methods. Typical applications include networking equipment, industrial controllers, test-and-measurement front ends, and video bridging. The 189 I/O count can connect to multiple memory buses, data converters, or backplane interfaces; the 53,248 RAM bits provide small FIFOs and register files without external SRAM. The 2.5 V core allows operation in classic low-voltage boards. When designing with EP20K100QC240-2, remember that the 0°C to 85°C commercial temperature range constrains environmental use, and that the 2.375 V to 2.625 V core supply should be clean and well decoupled. I/O standards and VCCIO connections must match the external bus levels; verify these against the APEX-20K datasheet before layout. This page synthesizes verified web availability, speed-grade alternatives, pricing signals, and practical notes for the EP20K100QC240-2, complementing the original manufacturer datasheet.
EP20K100QC240-3 - 189 I/O APEX-20K FPGA | Altera
The Altera EP20K100QC240-3 is an APEX-20K family field-programmable gate array (FPGA) with 4,160 logic elements, 189 user I/O pins, and 53,248 RAM bits, supplied in a 240-pin BFQFP package. It belongs to the 100K-gate-class APEX 20K family and is listed by DigiKey, Mouser, and Octopart with the speed-grade -3 designation. An FPGA is an integrated circuit whose logic fabric can be configured after manufacturing using a hardware description language and a bitstream. The FPGA sits above simple programmable logic devices (PLDs) in capacity and below structured ASICs in cost at high volume; it is the dominant product type for medium-density digital logic where time-to-market and reconfigurability matter. The EP20K100QC240-3 occupies that middle band: enough logic for bus interfaces and state machines, but not so many resources that a high-end FPGA is needed. Key specifications for the EP20K100QC240-3 include 4,160 logic elements, 189 user I/O pins, 53,248 RAM bits, and a typical gate count of 263,000. The core supply voltage is 2.5 V, the technology process is listed as 0.22 um, and the commercial temperature range is 0 to +85 °C. The package is a 240-pin BFQFP with gull-wing surface-mount terminals, which makes PCB layout straightforward for an older high-pin-count FPGA. Architecturally, the APEX 20K family combines LUT-based logic with embedded memory blocks. The 4,160 logic elements support combinatorial and register-intensive functions, while the 53,248 RAM bits provide on-chip FIFO or buffer storage that reduces external memory components. The 189 user I/Os allow multiple parallel buses, chip selects, and control signals to be connected directly to surrounding processors, ADCs, or bus transceivers. Typical applications for the EP20K100QC240-3 include protocol bridging in communications equipment, industrial control logic, image/interface glue logic, and test-and-measurement data paths. Because the core runs from 2.5 V, system power design must include a clean 2.5 V rail and appropriate I/O bank supplies. This is a legacy family, so designs should verify available speed files and tool support before production. A key design consideration is the -3 speed grade: if timing closure fails, the pin-compatible EP20K100QC240-2 or EP20K100QC240-1 can be used on the same PCB. Conversely, a design that meets timing comfortably can stay with the lower-speed -3 part. Because this is a mature device, decoupling and layout rules from the APEX 20K datasheet should be followed, including bulk capacitance on the 2.5 V core rail. This page synthesizes distributor listings, drop-in same-package alternatives, and practical design guidance that complement the manufacturer datasheet. It is intended for engineers maintaining APEX 20K legacy systems or evaluating existing stocked inventory.
EP20K100QC240-3N - 100K-Gate APEX-20K FPGA | Altera | Industrial
Altera EP20K100QC240-3N is an APEX-20K field-programmable gate array with 100,000 gates, 4,160 logic cells, 189 user I/O, and a 2.5 V supply, supplied in a 240-BFQFP package. The verified source describes a 240-pin, 1.27 mm-pitch BGA-format listing, while the distributor listings identify the physical package as 240-BFQFP; package naming and outline data should therefore be confirmed against the manufacturer package documentation before PCB release. The device is presented as a surface-mount FPGA for programmable digital logic implementations. A field-programmable gate array is a programmable semiconductor containing configurable logic blocks, routing resources, and programmable I/O elements. Unlike an application-specific integrated circuit, its logic functions and interconnections can be configured after manufacturing. FPGAs occupy the programmable-logic layer between fixed-function integrated circuits and software-driven processing, allowing hardware-level parallelism for communications, control, instrumentation, and embedded systems. The APEX-20K family combines programmable logic with architecture features intended for high-density system integration. The principal verified characteristics are 100,000 gates, 4,160 cells, 189 I/O pins, 53,248 bits of distributed memory, and a 416-macrocell listing in one distributor result. Additional search data identifies a 2.5 V supply range of 2.375 V to 2.625 V, a 0°C to 85°C operating range, and a 167 MHz device description. These values make the part relevant to designs requiring substantial programmable logic density and multiple external interfaces in a leaded 240-pin package. The architecture is a programmable logic device manufactured using a 0.15 µm all-layer copper-metal fabrication process according to the provided search result. The APEX-20K family is described as targeting system-level logic integration, but detailed configuration, timing, power, and I/O electrical characteristics are not included in the supplied web excerpts. Engineers should obtain the complete manufacturer datasheet and package information before implementation. Typical uses include telecommunications equipment, industrial automation, and consumer electronics, as identified by the supplied distributor and product listings. The 189 user I/O positions can support interfaces to memories, control peripherals, buses, and data-acquisition components. The 0°C to 85°C range supports commercial and controlled industrial environments, but operation in harsher temperature grades requires a separately qualified device. Designers must verify the exact package outline, pin assignment, voltage tolerance, clocking resources, configuration method, and timing limits from the official documentation. The supplied search data also contains an inconsistent BGA-652 description; that claim is not adopted here because the primary distributor and manufacturer search results identify a 240-BFQFP package. This page preserves the verified values, highlights source ambiguity, and supplies package-aware engineering guidance rather than inventing missing specifications.
EP20K100QC240-3V - APEX 20KE FPGA 100K Gates 189 I/O 240-BFQFP | Intel
The Intel (formerly Altera) EP20K100QC240-3V is a member of the APEX 20KE programmable logic device family, delivering 100,000 system gates and 4,160 logic elements in a 240-pin Fine-pitch QFP (BFQFP) package. It features MultiCore architecture integrating look-up table (LUT) logic, product-term logic, and embedded memory, with 53,248 bits of total RAM on-chip. The device operates on a 2.5V core supply (2.375V–2.625V), supports LVDS I/O, and provides 189 user I/O pins. What is an FPGA? An FPGA (Field-Programmable Gate Array) is a semiconductor IC containing configurable logic blocks, interconnect, and I/O cells that engineers can program after manufacturing to implement custom digital circuits. FPGAs sit within the programmable logic hierarchy above CPLDs and below ASICs, offering higher density than CPLDs and lower NRE cost than ASICs. The APEX 20KE family specifically targets SOPC (System-On-a-Programmable-Chip) integration, combining LUT logic, product-term logic, and embedded memory blocks in one fabric. Key features of the EP20K100QC240-3V include a -3 speed grade, 0.22 µm process technology, maximum operating frequency of 167 MHz, in-system programmability via IEEE 1149.1 JTAG, and support for multiple I/O standards including LVTTL, LVCMOS, and LVDS. The MultiCore architecture lets designers place register-intensive logic in LUTs and combinatorial glue logic in product-term blocks, optimizing silicon efficiency for mixed datapath/control designs. Typical applications include telecommunications line cards, high-speed datapath processing, DSP co-processing, glue-logic integration, and PCI bus interface bridging. The 53,248 bits of embedded memory can be configured as RAM, ROM, or FIFO, enabling single-chip implementation of state machines with on-chip buffering. When designing with this part, note that the -3V suffix indicates the device is lead-free and RoHS-compliant, while -3 alone denotes the standard lead-bearing variant. Both share the same 240-BFQFP footprint (32x32 mm) and identical die, so PCB layouts can accommodate either part. Designers should use the Quartus II design software (legacy) for synthesis, place-and-route, and timing closure.
EP20K100QI208-2 - APEX 20K FPGA, 208-PQFP, 159 I/O | Altera
The Altera EP20K100QI208-2 is an APEX-20K family SRAM-based FPGA/PLD that integrates 4,160 logic elements, 53,248 RAM bits, and 159 user I/Os in a 208-pin BFQFP (PQFP) package. This device is often described by distributors as an FPGA with APEX-20K architecture and as a field programmable gate array with embedded-system capabilities. It is intended for legacy designs that require a flexible programmable logic device with a large number of board-level I/O connections. A field programmable gate array (FPGA) is a semiconductor device containing configurable logic blocks, programmable interconnects, and embedded memory that can be programmed after manufacturing to implement digital circuits. FPGAs fit in the hierarchy FPGA -> programmable logic device -> integrated circuit -> electronic component. They are widely used for protocol bridging, video processing, industrial control, and ASIC prototyping because they allow hardware logic to be changed without spinning a custom chip. The APEX-20K family was one of Altera's early multi-core PLD architectures, combining look-up-table logic with embedded memory elements to support both gate-array style logic and system-level integration. Key features of the EP20K100QI208-2 include 4,160 logic elements, 53,248 total RAM bits, and 159 user I/O pins. The 208-pin BFQFP package has a square body, gull-wing terminals, and a 0.500 mm terminal pitch, which is well suited for surface-mount assembly on two-layer or multilayer PCBs. The component belongs to the APEX-20K programmable logic family and is functionally listed under embedded FPGAs. Its logic element and embedded-memory combination provides enough resources for medium-density logic designs, state machines, FIFO buffers, and parallel interface controllers. From a technical standpoint, the APEX-20K architecture embeds memory and product-term capability into a programmable fabric, giving designers flexibility to implement both register-intensive and combinatorial functions. Because the device is SRAM-based, it must be configured at power-up from an external configuration device, a host processor, or JTAG. Typical revision suffixes such as N indicate lead-free assembly, while C and I usually indicate commercial and industrial temperature grades respectively. For the exact core supply voltage, timing numbers, and thermal resistance of this exact ordering code, the Altera APEX-20K datasheet must be consulted because legacy distributor listings differ by variant. The EP20K100QI208-2 is applicable to telecommunications bridging, video/image capture interfaces, industrial machine control, test and measurement subsystems, and aerospace or ruggedized boards where multiple parallel buses need to be connected. Its 159 I/Os can interface to common memory devices, legacy ASICs, ADCs, DACs, and microprocessors with careful I/O standard planning. The 53,248 bits of embedded RAM are useful for small FIFOs, line buffers, and register files in these systems. When designing with this device, remember that configuration data is volatile; hold the configuration pin low until all supply rails are stable and provide a reliable configuration clock or JTAG chain. For new product designs, a modern FPGA is usually a better choice. This page is useful for legacy maintenance, bill-of-materials replacement, and industrial-temperature APEX-20K applications. It aggregates distributor links, drop-in family variants, and practical design notes that are not all repeated on the component manufacturer's datasheet.
EP20K100QI240-2 - APEX 20K FPGA 100K Gates 240-PQFP | Intel
The Intel (Altera) EP20K100QI240-2 is an APEX 20K family Field Programmable Gate Array (FPGA) with 100,000 typical gates, 4,160 logic elements, 53,248 RAM bits, and 189 user I/Os, housed in a 240-pin Power Quad Flat Pack (PQFP / BFQFP) package. It is fabricated on a 0.22 µm CMOS process with a 2.5 V core supply and supports system clock speeds up to 200 MHz. An FPGA (Field Programmable Gate Array) is a semiconductor integrated circuit composed of configurable logic blocks (CLBs), programmable interconnect, and I/O cells that engineers can re-program in the field to implement arbitrary digital logic, glue logic, DSP pipelines, or even full soft processors. FPGAs occupy the upper tier of the programmable logic hierarchy (FPGA > CPLD > SPLD > PAL/GAL) and are widely used for prototyping ASICs, low-volume custom compute, hardware-accelerated signal processing, and interface bridging. The APEX 20K family was notable for introducing MultiCore™ embedded system blocks, allowing on-chip integration of dual-port RAM, CAM, or ROM. Key features of the EP20K100QI240-2 include 4,160 logic elements, 53,248 RAM bits, 189 user I/Os, propagation delay of approximately 1.6 ns, a maximum internal frequency of 200 MHz, and 4 dedicated inputs plus 4 global clocks. The 2.5 V core (with 3.3 V PCI-compliant I/O tolerance on selected banks) and 0.22 µm CMOS process deliver industry-leading density for its generation. Architecturally, the device integrates Look-Up Table (LUT) logic, product-term logic, and embedded memory in a single MultiCore fabric - a hybrid scheme that lets the designer place register-intensive datapaths in LUTs while implementing fast control logic in product terms. This MultiCore approach, combined with True-LVDS and PLLs, made APEX 20K a popular choice for high-speed telecom and DSP backplanes in the late 1990s and early 2000s. Typical applications include digital signal processing (DSP) front-ends, telecom protocol bridging, custom peripheral controllers for embedded systems, image-processing pipelines, and industrial control glue logic. The 189 user I/Os make it suitable for wide parallel buses connecting microprocessors, memory, and analog front ends. When designing with the EP20K100QI240-2, engineers should note that this device is part of the mature APEX 20K family and is recommended only for legacy maintenance and existing design support; new designs should target Cyclone, Arria, or Stratix families. Quartus II design software (legacy versions) is required for place-and-route. This page synthesizes distributor pricing, drop-in same-package alternatives within the APEX 20K family, and practical design notes not consolidated in the manufacturer datasheet, giving engineers a single reference for sourcing and second-sourcing decisions.
EP20K100QI240-2N - 100K Gate APEX 20K FPGA | Altera
The Altera EP20K100QI240-2N is an APEX 20K family field-programmable gate array (FPGA) integrating approximately 100,000 system gates, 4,160 logic elements, and up to 53,248 RAM bits, with 200 MHz-class internal performance and a 2.5 V core, supplied in a 240-pin PQFP package. A field-programmable gate array (FPGA) is an integrated circuit whose logic fabric can be configured after manufacturing, placing it along the programmable logic device hierarchy of FPGA -> programmable logic device -> integrated circuit. The EP20K100 uses Altera's MultiCore architecture, which combines look-up table (LUT) logic, product-term logic, and embedded memory in a single device. That integration allows designers to implement register-intensive datapaths, wide combinational functions, and on-chip memory in one programmable component. Key verified features include the APEX 20K architecture, 4,160 logic elements, 100K system gates, 53,248 embedded RAM bits, 189 user I/Os, a 2.5 V nominal core supply, and a -2 speed grade. The -N suffix in this ordering code identifies the lead-free package variant used for RoHS-directed assembly. The PQFP-240 package has a 32 mm square body, 0.5 mm terminal pitch, and gull-wing terminals, allowing conventional fine-pitch surface-mount assembly. The device is manufactured on a 0.22 um CMOS process, with VCCINT specified at 2.5 V nominal and a verified operating range of 2.375 V to 2.625 V. According to distributor and datasheet data, the 240-pin package provides 189 user I/O and 4 dedicated inputs. This combination of logic density, memory bits, and package size makes the EP20K100QI240-2N suitable for moderate-complexity digital systems that need reprogrammable logic without migrating to a BGA package. Typical applications include communications line cards, industrial control boards, digital video equipment, and high-performance test instruments. The industrial temperature ordering option and lead-free finish make it attractive for rugged systems that must be assembled on lead-free production lines. The on-chip embedded memory reduces the need for external FIFO or SRAM components in many designs. When designing with this device, remember that the configuration SRAM is volatile. An external Altera configuration device such as EPC2 or EPC16, or a JTAG configuration host, is required to load the FPGA at power-up. Use adequate 0.1 uF and 1 uF decoupling capacitors near VCCINT pins and distribute the 2.5 V rail on a solid power plane to maintain reliable operation across the operating range. This page synthesizes verified distributor snippets, datasheet document references, same-family drop-in alternatives, and practical design guidance that is not repeated in the original APEX 20K datasheet, providing an information-gain resource for engineers evaluating obsolete APEX 20K inventory or replacement options.
EP20K100QI240-2V - FPGA APEX 20K 100K Gates | Altera
The Altera EP20K100QI240-2V is an APEX 20K field-programmable gate array (FPGA) offering approximately 100K system gates, 4,160 logic elements/cells, 189 user I/O, and 53,248 bits of embedded RAM. It is rated for 200 MHz maximum internal frequency, fabricated in 0.22 um CMOS technology for a 2.5 V core, and supplied in a 240-pin PQFP package described by DigiKey as 240-BFQFP. A field-programmable gate array is a programmable logic device whose logic function is defined after manufacturing by loading a configuration bitstream. In the FPGA hierarchy, the EP20K100 is a mid-density 100K-gate device that sits below million-gate FPGAs but above simple CPLDs. Altera introduced the APEX 20K family with a MultiCore architecture that integrates look-up table (LUT) logic, product-term logic, and embedded memory blocks onto one device, making it suitable for system-on-a-programmable-chip designs. Key features from the captured listings include 100K gates, 4,160 logic elements/cells, 200 MHz internal frequency, 189 user I/O lines, 4 dedicated inputs, 53,248 RAM bits, and a nominal 2.5 V core supply with an operating range of 2.375 V to 2.625 V. The 240-pin PQFP package is identified as 240-BFQFP on distributor pages, and the part is built on a 0.22 um CMOS process. From an architecture perspective, the APEX 20K MultiCore fabric combines LUT-based logic for register-intensive functions, product-term logic for wide combinatorial functions, and embedded memory for FIFOs and RAM. These heterogeneous resources let the EP20K100QI240-2V perform tasks that would otherwise require multiple devices or an external controller. Because it is SRAM-based, the FPGA must be configured after power-up from an external nonvolatile source such as an EPC2 or EPC16 configuration device. The EP20K100QI240-2V is most practical in legacy telecom line cards, industrial control boards, test instruments, and broadcast or audio/video infrastructure where the existing PCB footprint and FPGA support already exist. The 189 I/O lines are sufficient for bus translation, simple FIFO interfacing, and glue logic, while the 2.5 V core reduces supply complexity compared with earlier 5 V programmable logic. For board bring-up, keep the core supply between 2.375 V and 2.625 V and decouple each supply region with ceramic capacitors. Connect the configuration device pins to standard APEX20K configuration signals and verify that the nCONFIG, nSTATUS, and CONF_DONE pins are pulled correctly. Since this FPGA is legacy, thoroughly screen date code and test samples before production use. This page synthesizes distributor listing data, cross-reference search results, drop-in replacement guidance, and practical design notes for the EP20K100QI240-2V in a way that is not repeated on a single manufacturer datasheet page.