FPGA & CPLD
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EPF10K100BQC240-1 - 100K FLEX-10K FPGA, 240-PQFP | Intel / Altera
The Intel / Altera (formerly Altera) EPF10K100BQC240-1 is a member of the FLEX-10K family of SRAM-based Field-Programmable Gate Arrays (FPGAs) fabricated in a 0.42 µm CMOS process and housed in a 240-pin Plastic Quad Flat Pack (BQC / BFQFP, 32 mm × 32 mm). It integrates 100,000 typical gates, 6,144 dedicated logic elements (LEs), and 12 embedded array blocks (EABs) providing 24,576 bits of RAM, all powered from a 4.75 V to 5.25 V single supply with -1 speed grade and 11 ns pin-to-pin logic delay. An FPGA (Field-Programmable Gate Array) is a digital integrated circuit containing an array of configurable logic blocks (CLBs), programmable interconnect, and configurable I/O cells that the user defines after manufacture via a hardware description language (HDL) such as VHDL or Verilog. FPGAs occupy the middle ground between fixed-function ASICs and software-driven microcontrollers, combining hardware-level parallelism with software-level design iteration. The FLEX-10K family belongs to the broader hierarchy of programmable logic devices (PLDs) and was among the first commercially successful architectures to embed true dual-port RAM blocks (EABs), enabling high-throughput on-chip data buffering without external memory. Key features of the EPF10K100BQC240-1 include 6,144 LEs, 12 EABs supplying 24,576 RAM bits, 189 user I/O pins, multi-volt I/O support for 3.3 V / 5 V interfacing, in-system programmability via the ByteBlaster or BitBlaster cable, and 4 input look-up tables per LE. The -1 speed grade corresponds to approximately 11 ns combinatorial tPD, making this device suitable for 60-80 MHz system-level clock rates when pipelined. The 240-PQFP (BQC) package supports surface-mount manufacturing with JEDEC MSL-3 moisture sensitivity. Architecturally, the EPF10K100B implements a fine-grained logic element structure (each LE contains a 4-input LUT, a programmable register, and dedicated carry/ cascade logic) connected by a hierarchical FastTrack interconnect. The 12 EABs can be configured individually as 256 × 8, 512 × 4, 1024 × 2, or 2048 × 1 RAM blocks, and adjacent EAB pairs can be combined into wider configurations, ideal for FIFO, ROM, and dual-port buffer functions. Typical applications include legacy industrial control, telecommunications glue logic, PCI bus interfaces, prototyping for ASIC designs, and digital signal processing front-ends. Its 5 V tolerant I/O and SRAM-based reprogrammability made it a long-time favorite for industrial backplanes and military/aerospace systems where field updates were required. When designing with this device, observe 5 V power rail decoupling with 0.1 µF + 10 µF capacitors near each VCC/ GND pair, route all JTAG configuration traces with 50 Ω characteristic impedance, and confirm ByteBlasterMV driver compatibility since classic ByteBlaster cables do not support 5 V FLEX-10K. The part is now in a mature / last-time-buy lifecycle phase, so design teams should verify long-term supply before committing to new production runs. This page synthesizes distributor pricing (Rochester Electronics, Octopart listings), pin-compatible drop-in alternatives from the same FLEX-10K BQC-240 family, and practical design notes not found in the original datasheet summary.
EPF10K100BQC240-2 - 100K Gate FLEX-10KE FPGA, 240-PQFP | Altera
The Altera (Intel) EPF10K100BQC240-2 is a member of the FLEX-10KE embedded programmable logic device family, providing 100,000 system gates and 4,992 logic elements (LEs) in a 240-pin Plastic Quad Flat Pack (PQFP) measuring 32x32 mm. It integrates 24,576 RAM bits organized across 4,992 cells and operates from a 4.75V to 5.25V single supply, with a -2 speed grade offering roughly 250 MHz internal performance built on a 0.22 µm CMOS process. An FPGA (Field-Programmable Gate Array) is a programmable logic device (PLD) that lets engineers implement arbitrary digital logic by configuring an array of configurable logic blocks (CLBs), embedded memory arrays, and programmable I/O cells. Within the broader semiconductor hierarchy, an FPGA sits above standard logic ICs (which are fixed-function) and below ASICs (which are application-specific but not user-programmable). The FLEX-10KE family specifically introduced embedded array blocks (EABs) for on-chip RAM and ROM, blurring the line between traditional FPGAs and complex programmable logic devices (CPLDs). Key features of the EPF10K100BQC240-2 include 4,992 logic elements, 24,576 RAM bits distributed across embedded array blocks, multiVolt I/O support, in-system programmability via the IEEE 1149.1 JTAG interface, and a dedicated configuration memory. The -2 speed grade denotes a mid-range timing classification within the family; -3 parts are faster, -1 parts are slower. The 240-PQFP package supports surface-mount assembly with a moderate thermal profile suitable for industrial and telecom designs. From an architectural standpoint, the FLEX-10KE family combines a fine-grained logic fabric with coarse-grained embedded array blocks, allowing designers to implement both wide datapath functions and small glue-logic blocks efficiently. The device is configured through a serial PROM or JTAG, and once configured the logic cells implement combinatorial and registered functions at predictable, deterministic delays. Typical applications for the EPF10K100BQC240-2 include telecommunications backplane glue logic, industrial control and factory automation interfaces, legacy PCI bus bridge designs, low-volume prototyping where ASIC NRE is unjustified, and drop-in upgrades of older FLEX-10K designs. The wide 5V tolerance and JTAG-friendly package keep it attractive for sustaining legacy hardware. When designing with this part, note that FLEX-10KE silicon is mature and supported only via legacy Altera (now Intel) Quartus II toolchains in compatibility mode. New designs should evaluate Cyclone or MAX families, but existing EPF10K100B boards can still be manufactured and serviced using this drop-in part. This page consolidates distributor pricing, drop-in alternatives within the FLEX-10KE family, and practical design considerations not duplicated in the legacy datasheet.
EPF10K100BQC240-3 - 100K Gate FLEX-10K FPGA, 240-PQFP | Intel / Altera
The Intel (formerly Altera) EPF10K100BQC240-3 is a member of the FLEX-10K family of SRAM-look-up-table (LUT)-based field-programmable gate arrays (FPGAs). It provides approximately 100,000 typical gates, 4,992 logic elements, and 6,144 bits of embedded RAM in a 240-pin Plastic Quad Flat Pack (PQFP) package, with a -3 speed grade and 4.75 V to 5.25 V core supply. The part is offered in the 240-BFQFP / 240-PQFP (32 x 32 mm, 0.50 mm pitch) form factor for surface-mount assembly. An FPGA is a type of programmable logic device (PLD) that combines the integration density of an application-specific integrated circuit with the design flexibility of a software-defined hardware platform. FPGAs sit in the broader hierarchy of integrated circuits (ICs) -> programmable logic -> PLD -> FPGA -> SRAM-based LUT FPGA. The FLEX-10K family was one of the first commercial architectures to embed dedicated array blocks (EABs) for on-chip memory, enabling single-chip implementation of register-transfer logic plus FIFO/RAM functions for glue logic replacement, bus interfacing, and DSP pre/post-processing. Key features include 4,992 logic cells, 6,144 RAM bits, 200 MHz typical internal performance, and 0.22 µm CMOS process technology. The -3 speed grade indicates the slowest commercial speed bin of the family, selected for cost-sensitive designs where timing closure is not the limiting factor. The PQFP-240 package was the workhorse industrial footprint for late-1990s through mid-2000s FPGA designs, providing ample I/O for 32-bit parallel buses and multi-protocol bridging. The architecture uses SRAM configuration cells, requiring an external configuration memory (such as an EPC2 or EPC1 serial configuration device) at power-up. I/O banks support multiple I/O standards (TTL, CMOS, PCI) via per-pin configuration registers. The FLEX-10K family supports JTAG (IEEE 1149.1) boundary-scan testing and in-system programmability through the JTAG or passive serial interface, allowing board-level reconfiguration without removing the device. Typical applications include industrial control and instrumentation, telecommunications line cards, military/aerospace systems (COTS-grade), legacy PCI/ISA bridge designs, and prototyping platforms where designers need 50K-200K gates of programmable logic with moderate clock rates. The wide 5 V tolerance simplifies interfacing with legacy TTL logic in retrofit and modernization projects. When designing with this device, ensure that the Quartus (or legacy MAX+PLUS II) configuration bitstream is generated for the -3 speed grade. The 240-pin PQFP requires a 0.50 mm-pitch land pattern with generous copper pad relief to prevent solder joint cracking under thermal cycling. For new designs, consider migrating to a Cyclone IV or MAX 10 device in QFP, as the FLEX-10K family is mature and approaching end-of-life for new procurement. This page synthesizes distributor pricing, drop-in same-package alternatives (speed-grade and logic-density variants of the FLEX-10K family), and practical design notes that go beyond what the manufacturer datasheet alone provides.
EPF10K100EBC356-1 - 100K Gates FLEX 10KE FPGA | Intel
The Intel (Altera) EPF10K100EBC356-1 is a 100,000-gate FLEX 10KE embedded programmable logic device (PLD) housed in a 356-pin LBGA package, fabricated on a 0.22 µm CMOS process and rated for commercial 0 °C to 70 °C operation. It integrates 49,152 bits of embedded SRAM and 4,992 logic elements, supports up to 274 user I/O pins, and runs at a typical internal operating frequency of 333.33 MHz with a 0.6 ns propagation delay. The '-1' speed grade denotes the fastest bin of the family at 2.5 V core, making this device the highest-performance option in the FLEX 10KE BGA-356 lineup. A FLEX 10KE FPGA belongs to the PLD (programmable logic device) family, sitting in the broader hierarchy of digital logic ICs -> programmable logic -> field programmable gate array. The 'E' suffix designates the enhanced 'embedded' variant: each logic array block (LAB) is paired with a dedicated Embedded Array Block (EAB) containing 2,048 bits of true dual-port RAM, enabling single-chip System-on-a-Programmable-Chip (SOPC) implementations that combine logic, memory, and I/O on one die. Key features include 100K system gates, an IEEE Std 1149.1 JTAG boundary-scan test interface that consumes up to 31,250 additional gates, multi-volt I/O supporting 2.5 V/3.3 V operation, and pin-compatibility with other FLEX 10K devices in matching package footprints. The LBGA-356 (1.0 mm pitch, 35 x 35 mm body) maximizes board area efficiency and supports SameFrame pin migration across density points. The FLEX 10KE architecture combines a fine-grained logic element fabric with coarse-grained embedded memory blocks, allowing designers to implement wide datapaths, FIFOs, and CAMs in distributed EABs without consuming logic resources. The 0.6 ns propagation delay and 333 MHz internal frequency suit the device for glue logic, bus bridging, and peripheral controller duties in mid-complexity designs. Typical applications include telecommunications line cards, industrial control boards, prototyping platforms for ASIC emulation, and legacy system upgrades. The 356-LBGA package is preferred where board density is at a premium and the design requires more I/O than QFP alternatives can offer. Designers migrating from FLEX 10KA to 10KE retain pin compatibility for shared footprint members. When designing with this device, ensure the Quartus II or MAX+PLUS II toolchain supports the FLEX 10KE family, and verify that the JTAG chain accounts for the additional 31,250 gates. Static I/O bank assignments must respect the device's I/O standard groupings to avoid contention. This page synthesizes distributor inventory, parametric drop-in alternatives, and package-level design notes for the EPF10K100EBC356-1, providing information not consolidated in the manufacturer datasheet PDF.
EPF10K100EBC356-1N - FLEX 10KE FPGA 100K Gates 356-BGA | Altera
The Intel (formerly Altera) EPF10K100EBC356-1N is a FLEX 10KE embedded programmable logic device (PLD) with 100,000 typical gates, 4,992 logic cells (logic elements), and 49,152 RAM bits, housed in a 356-ball LBGA package (35x35 mm). It offers 274 user I/O pins, 624 LABs (Logic Array Blocks), and operates from a 2.5 V core supply (2.375 V to 2.625 V) with 3.3 V I/O tolerance. The -1N suffix denotes the industrial-grade speed grade and lead-free, non-Pb-free designation per Altera's legacy ordering scheme. A Field Programmable Gate Array (FPGA) is a semiconductor integrated circuit that can be programmed after manufacture to implement arbitrary digital logic. FPGAs sit within the broader hierarchy of programmable logic devices (PLDs), alongside CPLDs (Complex PLDs) and PALs, and are used as flexible alternatives to fixed-function ASICs. Within the system architecture hierarchy, an FPGA falls under Integrated Circuits > Logic ICs > FPGA & CPLD. The FLEX 10KE family was Altera's first embedded PLD family to provide System-on-a-Programmable-Chip (SOPC) integration, combining an embedded array block for megafunction implementation with the Look-Up Table (LUT)-based logic array for glue logic. Key features include 0.6 ns pin-to-pin propagation delay (the -1 speed grade offering the fastest timing in this product line), embedded array blocks for implementing megafunctions (RAM, ROM, FIFO, multipliers), True-LVDS support, MultiVolt I/O, and on-chip PLL-based clock management. The FLEX 10KE architecture uses reconfigurable CMOS SRAM elements, so the device is volatile and must be configured from an external EEPROM or flash on every power-up. The 356-BGA package provides high I/O density for complex bus-intensive designs. Typical applications include telecommunications switching fabrics, industrial control and instrumentation, DSP co-processing, network routers, and legacy embedded computing systems where high gate counts with embedded memory blocks are required. The 356-BGA package and 274 user I/Os make it well-suited to designs requiring multiple 32-bit buses, memory controllers, and protocol bridges. When designing with the EPF10K100EBC356-1N, engineers must consider that this is a mature, NRND (Not Recommended for New Designs) part in the FLEX 10KE family. New designs should evaluate Cyclone or Cyclone II equivalents for production. For long-term availability, consider pin-compatible Cyclone EP1C100F324 (different package, requires PCB rework) versus staying on FLEX 10KE for legacy support. This page synthesizes distributor pricing from Octopart and DigiKey, package-level replacement guidance, and practical design notes specific to the FLEX 10KE embedded array architecture that are not consolidated on the manufacturer datasheet cover page.
EPF10K100EBC356-1X - FLEX 10KE FPGA 100K Gates 356-BGA | Intel
The Intel (formerly Altera) EPF10K100EBC356-1X is a FLEX 10KE family Field-Programmable Gate Array (FPGA) with 100,000 typical gates, 4,992 logic elements (LEs), and 49,152 bits of embedded RAM, packaged in a 356-ball LBGA (35 x 35 mm). It is the industry's first embedded programmable logic device family, providing System-on-a-Programmable-Chip (SOPC) integration through an embedded array block for memory and specialized functions. The device operates from a 2.5 V core supply with 3.3 V I/O tolerance and supports 274 user I/Os at CMOS logic levels. The "-1X" speed grade and commercial 0 to 70 degrees C temperature rating make it the production-grade variant of the FLEX 10KE 100K gate density. A Field-Programmable Gate Array (FPGA) is a type of integrated circuit (IC) containing an array of programmable logic blocks, configurable interconnects, and I/O cells that can be reconfigured by the designer after manufacturing. FPGAs sit in the programmable logic hierarchy above CPLDs and below ASICs, offering higher density than CPLDs and lower NRE cost than ASICs. The FLEX 10KE family extends Altera's classic FLEX 10K architecture by adding enhanced interconnect and embedded array blocks (EABs) that can be configured as RAM, ROM, or FIFO - bridging the gap between pure logic FPGAs and early system-on-chip devices. Key features include 4,992 logic elements organized into 624 logic array blocks (LABs), 12 embedded array blocks providing 49,152 bits of on-chip memory, 274 user I/O pins, in-system programmability via IEEE 1149.1 JTAG, multi-volt I/O supporting 2.5 V / 3.3 V / 5 V mixed-voltage environments, and 0.6 ns propagation delay. The device is built on a 0.22 um CMOS process with 5 layers of metal interconnect and supports configuration via serial EPROM, parallel EPROM, or JTAG. Typical applications include glue logic replacement, high-speed data-path interfacing, telecom line-card prototyping, industrial control bridging, and ASIC prototyping. The wide I/O count and embedded memory make the EPF10K100EBC356-1X particularly well-suited for designs that need moderate logic density plus on-chip buffering. Compared to larger Cyclone or Stratix devices, the FLEX 10KE remains attractive for legacy designs that require drop-in replacement or where the design is already validated against the FLEX architecture. When designing with this device, ensure the JTAG chain length does not exceed the IEEE 1149.1 specification and verify that the configuration EPROM is sized appropriately for the bitstream. The 356-BGA package has a 1.27 mm ball pitch - review PCB pad design and stencil aperture for reliable BGA assembly. As this part is mature and now supported by Rochester Electronics and authorized aftermarket distributors, expect long lead times and request a lifecycle confirmation before placing into new production designs.
EPF10K100EBC356-2 - 100K Gates FLEX 10KE FPGA 274 I/O BGA-356 | Intel
The Intel (Altera) EPF10K100EBC356-2 is a FLEX-10KE-series embedded programmable logic device (PLD) that delivers approximately 100,000 typical gates (158,000 maximum system gates) in a 356-ball LBGA package (35x35 mm, 1.27 mm pitch). Per the Verified Web Data, the device provides 274 user I/O pins, 4,992 logic elements, 624 LABs/CLBs, 12 embedded array blocks (EABs), and 49,152 total RAM bits, with a core supply voltage range of 2.375 V to 2.625 V and a commercial operating temperature range of 0 C to 70 C. What is an FPGA? An FPGA (Field Programmable Gate Array) is a semiconductor integrated circuit composed of configurable logic blocks (CLBs/LABs), programmable interconnect, and I/O cells that can be re-programmed to implement custom digital logic. The FLEX-10KE family introduced by Altera pioneered System-on-a-Programmable-Chip (SOPC) integration by embedding dedicated array blocks (EABs) alongside the general-purpose logic fabric, providing on-chip RAM and DSP megafunctions. In the broader hierarchy, the EPF10K100EBC356-2 sits within: programmable logic device -> CPLD/FPGA -> SRAM-based FPGA -> embedded-array FPGA. Key features of the EPF10K100EBC356-2 include its 2.5 V core supply (speed grade -2), 0.5 ns internal propagation delay, CMOS process technology, and full JTAG-based in-system programmability via the IEEE 1149.1 boundary-scan interface. The 356-ball LBGA package provides high I/O density (274 user I/O) for multi-bank designs, while the 12 EABs deliver 49,152 bits of true dual-port RAM suitable for FIFOs, lookup tables, and small buffer memories. The -2 speed grade represents Altera's mid-tier timing bin, suitable for designs targeting up to 250 MHz internal performance. Typical applications include telecommunications line cards, industrial control and factory automation controllers, military/aerospace signal processing, medical imaging back-end processing, and legacy ASIC prototyping. The embedded array blocks make the FLEX 10KE particularly well-suited to designs requiring on-chip memory integration alongside glue logic, eliminating external SRAM in many mid-complexity designs. When designing with this part, ensure that the 2.5 V core supply is decoupled with 0.1 uF ceramic capacitors placed within 5 mm of every VCC/GND pair. Configuration data must be loaded from a serial or parallel PROM at power-up via the dedicated configuration pins. The commercial temperature grade (0 to 70 C) limits deployment to non-automotive, non-extended-temperature environments.
EPF10K100EBC356-2X - FLEX 10KE FPGA 100K Gates 356-BGA | Altera
The Altera (Intel Programmable Solutions Group) EPF10K100EBC356-2X is a high-density FLEX 10KE family Field Programmable Gate Array (FPGA) featuring 100,000 system gates, 4,992 logic elements/cells, 49,152 bits of embedded RAM, and 274 user I/Os in a 356-ball LBGA (35 mm x 35 mm) package. The device operates from a 2.375 V to 2.625 V core supply with a 3.3 V I/O supply and is rated for the commercial 0 °C to 70 °C temperature range. Per the FLEX 10KE datasheet, the EPF10K100EBC356-2X belongs to Altera's "-2X" speed grade with an internal propagation delay of approximately 0.6 ns and 624 Logic Array Blocks (LABs). What is a FLEX 10KE FPGA? The FLEX 10KE family is a second-generation embedded programmable logic family that introduced the industry's first embedded array blocks (EABs) for implementing on-chip dual-port RAM, ROM, FIFO, and CAM functions alongside conventional logic. This hybrid "Logic + Embedded Array" architecture enables System-on-a-Programmable-Chip (SOPC) integration, sitting hierarchically under PLD → CPLD/FPGA → programmable logic device → semiconductor. The FLEX 10KE family is the precursor to modern SRAM-based FPGAs from Altera/Intel and remains in production for long-lifecycle industrial, telecom, and military customers. Key features of the EPF10K100EBC356-2X include 12 embedded array blocks (EABs) providing up to 49,152 RAM bits, built-in JTAG boundary-scan test (IEEE 1149.1), 3.3 V PCI-compliant I/Os, multiVolt I/O supporting 2.5 V/3.3 V/5.0 V mixed-voltage interfacing, in-system programmability via the Altera ByteBlaster or BitBlaster download cables, and four dedicated clock input pins plus global clock networks. The SRAM-based configuration cells allow unlimited reconfiguration, while dedicated configuration circuitry supports serial and parallel configuration modes including passive serial (PS), passive parallel synchronous (PPS), passive parallel asynchronous (PPA), and JTAG-based configuration. The architecture combines a fine-grained Look-Up Table (LUT)-based logic fabric with course-grained embedded array blocks, giving designers the ability to implement both random state machines and high-density memory functions on the same die. Each LAB contains 8 Logic Elements (LEs), each LE containing a 4-input LUT, a programmable register, and dedicated carry and cascade chains. The EABs can be configured as 256 x 8, 512 x 4, 1024 x 2, or 2048 x 1 memory blocks with optional parity. Typical applications include telecom infrastructure (line-card controllers, glue logic for ATCA/cPCI backplanes), industrial automation (PLC scan engines, motor-control co-processors), military/aerospace systems requiring long-lifecycle Altera silicon, data-acquisition front-ends, and legacy designs that were migrated from FLEX 10K to FLEX 10KE to gain EAB-based embedded memory. Designers porting to newer Cyclone or MAX families will find the FLEX 10KE design flow familiar: Quartus II (legacy) or Quartus Prime Lite can target this device using compiled VHDL/Verilog netlists. When designing with this device, observe that the 35 mm x 35 mm LBGA-356 package requires 4-layer or 6-layer PCB stack-up with 0.5 mm or 0.8 mm ball pitch and matched-length impedance control on clock and global nets. Decoupling must use at least 12 x 0.1 µF ceramic capacitors placed within 5 mm of the package, plus a 100 µF tantalum bulk capacitor on each supply rail. Configuration mode selection via MSEL pins must be hardwired before VCC ramps up, otherwise the device may enter an undefined configuration state. Designers should also budget at least 200 mA of peak inrush current during configuration, requiring a soft-start circuit on the 2.5 V regulator. This page synthesizes distributor pricing, drop-in alternatives from the Site MPN catalog (same-package FLEX 10KE speed-grade and -1/-2N/-3 family variants), and practical design notes that are not assembled in the manufacturer datasheet PDF.
EPF10K100EBC356-3 - 100K Gates FLEX-10KE FPGA, 356-LBGA | Intel
The Intel (formerly Altera) EPF10K100EBC356-3 is a member of the FLEX-10KE family of embedded programmable logic devices (PLDs), delivering approximately 100,000 gates, 4,992 logic elements (LEs), and 49,152 RAM bits in a 356-pin LBGA (35x35) package. Speed grade -3 indicates a -3 (faster) timing bin with typical propagation delays of approximately 0.6 ns and internal core operation up to 200 MHz. The device integrates 274 user I/Os and operates from a 2.5 V core supply (2.375 V to 2.625 V) over a 0 C to 70 C commercial temperature range. An FPGA (Field-Programmable Gate Array) is a reconfigurable integrated circuit whose logic fabric, routing, and I/O cells can be programmed in the field via an SRAM-based configuration bitstream. FPGAs sit within the broader semiconductor hierarchy as programmable logic devices (PLDs), themselves a sub-category of digital logic ICs, and are commonly used for digital signal processing, glue logic, prototyping, and high-speed I/O expansion where ASIC NRE costs cannot be justified. Key features of the EPF10K100EBC356-3 include its 624 LABs (Logic Array Blocks), embedded array blocks (EABs) for memory and DSP functions, CMOS SRAM-based configuration (volatile, requiring a configuration device), in-system programmability via JTAG, and a high I/O count (274) that supports parallel buses and many discrete interfaces. The device is fabricated on a 0.22 micron CMOS process. Architecturally, the FLEX-10KE family pioneered embedded array blocks (EABs), allowing each block to be configured as RAM or ROM and to implement arithmetic logic. Combined with the interconnect-rich logic array, this hybrid structure prefigures modern heterogeneous FPGAs with hard DSP and memory blocks. The 356-LBGA package provides controlled-impedance signal paths and a generous ball grid for high pin density at 35 mm x 35 mm. Typical applications include telecommunications line cards, industrial control and factory automation, data acquisition systems, and digital signal processing glue logic. The wide user I/O count and high gate density make it well-suited to bus-bridging, protocol conversion, and high-speed serial-to-parallel interfaces. When designing, note that the FLEX-10KE core is 2.5 V; I/O banks can be configured for 2.5 V or 3.3 V interface levels, but 5 V tolerance is not guaranteed. A configuration EPROM or JTAG programmer (ByteBlaster-compatible) is required at board bring-up. Designers migrating from this part should evaluate Cyclone III/IV as next-generation equivalents, as FLEX-10KE is no longer in active production. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes not found in the manufacturer datasheet alone.
EPF10K100EFC256-2 - FLEX 10KE FPGA, 100K Gates, 256-BGA | Intel / Altera
The Intel (formerly Altera) EPF10K100EFC256-2 is a member of the FLEX 10KE family of CMOS Field-Programmable Gate Arrays (FPGAs) housed in a 256-pin FineLine Ball Grid Array (FBGA) package. It integrates 49,152 logic elements (4,992 dedicated registers) with 191 user I/O pins and operates from a 2.375 V to 2.625 V core supply, giving designers approximately 100,000 equivalent ASIC gates of programmable logic with embedded array blocks for memory and arithmetic functions. The device is specified over a 0 °C to 70 °C commercial temperature range. An FPGA (Field-Programmable Gate Array) is a semiconductor device whose digital logic function is defined after manufacturing by the user. FPGAs sit in the programmable-logic hierarchy between simple PLDs/CPLDs and fixed-function ASICs, occupying the same role as discrete gate arrays but allowing rapid, software-driven reconfiguration. The FLEX 10KE family specifically introduced an embedded array block (EAB) for on-chip RAM and DSP-style functions, giving it a System-on-a-Programmable-Chip (SOPC) capability that earlier FPGAs lacked. Key features of the EPF10K100EFC256-2 include 624 Logic Array Blocks (LABs), embedded array blocks for FIFO/RAM/ROM, fast interconnect (FastTrack), JTAG-compliant boundary-scan test support, in-system programmability via configuration schemes such as PS, and dedicated clock-locked pins. The core is built on a 0.22 µm CMOS SRAM process and uses 4-input look-up tables (LUTs) per logic element, delivering an effective propagation delay of approximately 0.6 ns per LUT in speed-grade -2 silicon. Typical applications include legacy industrial glue logic, parallel bus interfacing, state-machine and protocol-bridge replacement, low-volume ASIC prototyping, retrofits of older designs still based on the FLEX 10KE footprint, and educational platforms that retain Altera (now Quartus Prime) toolchain support for older families. Because the FLEX 10KE family is mature, the EPF10K100EFC256-2 is generally sourced through authorised distributors of Intel/Altera heritage product rather than direct factory channels. When designing with this part, remember that core, I/O and JTAG voltages are not independent; the part requires a stable 2.5 V VCCINT plus separate VCCIO banks. Configuration memory is volatile, so an external configuration PROM (e.g., EPC2) is required at every power-up. The 256-pin FineLine BGA also demands careful PCB layout for the fan-out escape and decoupling; consult the FLEX 10KE device handbook for the recommended stack-up and decoupling scheme. This page synthesises distributor pricing (as of 2026-09-11), a drop-in same-footprint alternatives matrix, and practical design notes not collected in the manufacturer datasheet.
EPF10K100EFC256-2X - FLEX 10KE FPGA, 49,152 Gates, 256-BGA | Altera
The Altera (now Intel) EPF10K100EFC256-2X is a FLEX 10KE family Field-Programmable Gate Array (FPGA) delivering 49,152 logic elements/gates, 4,992 Logic Array Blocks (LABs), and 624 Logic Elements per LAB, packaged in a 256-ball FineLine Ball Grid Array (FBGA). It supports 191 user I/Os, operates at 2.5V core supply, and is offered in the -2 speed grade, balancing timing margin against the industrial commercial 0°C to 70°C operating range. An FPGA (Field-Programmable Gate Array) is a class of programmable logic device (PLD) that integrates configurable logic blocks, programmable interconnects, and embedded memory arrays on a single semiconductor die. FPGAs sit at the top of the digital logic hierarchy: discrete gates -> PLDs (PAL/GAL) -> CPLDs -> FPGAs -> SoC FPGAs. Within Altera's (now Intel PSG) portfolio, the FLEX 10KE family was an early SRAM-based, look-up-table (LUT) architecture that pioneered embedded system-on-chip integration by mixing logic and memory cells (EABs) on the same die, a design philosophy that paved the way for modern SoC FPGAs like Cyclone and Stratix. Key features of the EPF10K100EFC256-2X include 4,992 cells organized into 624 LABs, 191 user I/Os routed through 5 I/O banks, multi-voltage I/O support (3.3V PCI-compatible and 2.5V/1.8V levels), and an in-system programmable configuration interface. The 256-FBGA FineLine package provides a compact footprint suitable for high-density boards, while the -2 speed grade represents a balance between timing closure and cost for commercial-temperature designs. The FLEX 10KE architecture combines a sea-of-LUTs logic fabric with Embedded Array Blocks (EABs) that can be configured as RAM, ROM, or FIFO, enabling designers to implement datapath logic, state machines, and small memory blocks without external components. The SRAM-based configuration cells require a configuration device (such as an EPC2 or EPC16) to load the bitstream at power-up, supporting JTAG-based in-system programming for prototyping and field upgrades. Typical applications include telecommunications line cards, industrial control systems, glue logic replacement, PCI interface bridging, and legacy system upgrades. The 256-FBGA package and 191 I/O count make this part well suited for mid-complexity designs where board area and signal density matter more than absolute logic capacity. When designing with the EPF10K100EFC256-2X, ensure the configuration scheme (passive serial, active serial, or JTAG) and configuration device selection are validated against the Quartus design tool's pin-out report. Pay close attention to bank-by-bank I/O voltage compatibility, especially when mixing 3.3V PCI and 2.5V peripherals on the same device.
EPF10K100EFC256-3 - 100K Gates FLEX 10KE FPGA, 256-BGA | Intel
The Intel EPF10K100EFC256-3 is a high-density FLEX 10KE Field Programmable Gate Array (FPGA) delivering approximately 100,000 usable system gates with 4,992 logic elements and 49,152 RAM bits in a 256-ball FineLine BGA (FBGA) package. The device operates from a 2.5V core supply with 3.3V multi-voltage I/O support and is rated for commercial 0C to 70C ambient operation. The -3 speed grade offers enhanced timing margins, while the embedded array block (EAB) architecture combines look-up table logic with on-chip SRAM blocks for System-on-a-Programmable-Chip (SOPC) integration. What is an FPGA? A Field Programmable Gate Array is a reconfigurable semiconductor device built from an array of programmable logic blocks, interconnect, and I/O cells. FPGAs sit between fixed-function ASICs and software-programmable processors: they offer hardware-level parallelism and timing precision like an ASIC, but can be reconfigured in the field. The FLEX 10KE family, introduced by Altera (now Intel), was the industry's first embedded PLD family to combine a logic array with embedded array blocks (EABs) for on-chip memory, marking the industry's first System-on-a-Programmable-Chip (SOPC) integration. Key features of the EPF10K100EFC256-3 include 191 maximum user I/Os (DigiKey listing) / 274 pins per alternate datasheet listing, built-in IEEE 1149.1-1990 JTAG boundary-scan test (BST) circuitry compliant with PCI Local Bus Specification Revision 2.2 at 33 MHz or 66 MHz for 3.3-V operation, and a 0.22-micron CMOS process technology enabling up to 200 MHz internal operation. The device uses CMOS logic at a 2.5V core and supports multi-voltage I/O standards including LVTTL, LVCMOS, PCI, and SSTL. Technically, the FLEX 10KE architecture organizes logic into Logic Array Blocks (LABs) - the device contains 624 LABs - each containing 8 logic elements (LEs) with a 4-input look-up table. Embedded Array Blocks (EABs) deliver up to 2,048 bits of dual-port RAM per block, configurable as RAM, ROM, or product-term logic. The continuous FastTrack interconnect routes signals across rows and columns with predictable delay, enabling timing closure across complex designs. Typical applications include PCI bus interface cards, telecommunications glue logic, industrial control adapters, prototyping for ASIC emulation, and high-speed data acquisition pre-processing. The -3 speed grade and 191 user I/Os make this device suitable for interface bridging and protocol conversion where deterministic timing is required. When designing with this device, ensure JTAG chain integrity by including TMS, TCK, TDI, TDO, and TRST pull-up/pull-down resistors per IEEE 1149.1 conventions. For PCI applications at 66 MHz, restrict I/O placement to PCI-compliant banks and maintain reference-plane continuity under the BGA. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
EPF10K100EFC256-3N - FLEX 10KE FPGA 100K Gates | Altera/Intel
The Altera (now Intel) EPF10K100EFC256-3N is a FLEX 10KE family Field Programmable Gate Array (FPGA) with 100K equivalent gates, 4992 logic elements, and 49152 bits of embedded memory, housed in a 256-pin FineLine BGA (FC) package. It delivers 200 MHz core performance on a 0.22 µm CMOS process and operates from a 2.5 V core supply, with 191 user I/O pins for high-density logic and glue-less bridging designs. A Field Programmable Gate Array (FPGA) is a programmable logic device containing an array of configurable logic blocks (CLBs), embedded memory, routing interconnects, and I/O cells that can be re-programmed in-system to implement arbitrary digital circuits. FPGAs sit in the semiconductor hierarchy below ASICs (custom silicon) but above CPLDs in density, and belong to the broader programmable logic device (PLD) family. The FLEX 10KE family was Altera's first embedded programmable logic family offering System-on-a-Programmable-Chip (SOPC) integration with an embedded array block (EAB) usable as RAM, ROM, or product-term logic. Key features include 100K typical gates (with up to ~250K maximum system gates), 4992 logic cells, twelve Embedded Array Blocks (EABs) providing 24,576 RAM bits each, multi-voltage I/O supporting 2.5 V and 3.3 V interfaces, and a -3 speed grade targeting higher Fmax than -1/-2 grades. The 256-pin FineLine BGA package supports 191 user I/O and is compliant with PCI Local Bus Specification Revision 2.2 for 3.3-V operation at 33 MHz or 66 MHz. The architecture pairs logic array blocks (LABs) with EABs to deliver both fine-grained logic and high-density on-chip SRAM, while four-phase clocking and global/regional clock networks provide deterministic timing closure. JTAG boundary-scan support compliant with IEEE Std. 1149.1-1990 enables in-system test without consuming device logic. Typical applications include PCI bus interface bridges, glue logic replacement, custom DSP datapaths, industrial control and communications backplanes, and legacy telecommunication line-card designs where the FLEX 10KE delivered compelling cost-per-gate at product launch. When designing with the EPF10K100EFC256-3N, ensure the 2.5 V core supply is well-decoupled with 0.1 µF ceramic capacitors near each VCCINT pin and use the JTAG chain carefully ordered to avoid TAP contention during in-system programming.
EPF10K100EFC484-1 - FLEX 10KE FPGA 100K Gates 484-BGA | Intel
The Intel (formerly Altera) EPF10K100EFC484-1 is a FLEX 10KE family Field-Programmable Gate Array (FPGA) integrating 4,992 logic elements, 49,152 bits of embedded SRAM, and 257,000 typical system gates in a 484-pin FineLine BGA package. It supports up to 338 user I/Os, fabricated on a 0.42 µm CMOS process with 2.5 V core operation, and includes 12 embedded array blocks (EABs) configurable as ROM or dual-port RAM. An FPGA (Field-Programmable Gate Array) is a semiconductor device built around an array of configurable logic blocks (CLBs), programmable interconnect, and I/O cells that engineers can customize after manufacture using a hardware description language. FPGAs sit between discrete logic ICs and application-specific integrated circuits in the design hierarchy, offering ASIC-like integration with NRE-free, rapid-turnaround programmability. The FLEX 10KE family specifically pioneered embedded System-on-a-Programmable-Chip (SOPC) integration by combining a logic array with embedded array blocks for on-chip memory. Key features of the EPF10K100EFC484-1 include 624 Logic Array Blocks (LABs), 0.6 ns propagation delay, support for 3.3 V PCI compliance, embedded IEEE Std. 1149.1 JTAG boundary-scan test circuitry, and in-system configurability via serial or parallel EPROM. The 484-FBGA package (23×23 mm) provides a high-density footprint suitable for high-I/O designs while supporting SameFrame pin migration to other FineLine BGA densities in the family. Each LAB contains 8 logic elements (LEs) and local interconnect, enabling efficient state-machine and datapath implementation. Architecturally, the EPF10K100EFC484-1 uses SRAM-based configuration memory, requiring a configuration EPROM or JTAG download on every power-up. Its Embedded Array Blocks (EABs) deliver 2 Kbits each (12 EABs × 2 Kbit = 24 Kbits, configurable up to 48 Kbits via dual-port mode), supporting FIFO buffers, ROM lookup tables, and arithmetic operations. The device supports multi-volt I/O standards including 3.3 V, 2.5 V, and 1.8 V, with 5 V PCI tolerance. SameFrame pin-out compatibility across the FLEX 10KE BGA family allows design migration without PCB rework when higher- or lower-density members are needed. Typical applications include telecommunications line cards, networking bridges and routers, industrial control and factory automation, ASIC prototyping, glue logic replacement, and high-speed data acquisition systems. The combination of 338 user I/Os and 49 Kbits of embedded memory suits designs requiring both extensive parallel interfaces and on-chip buffering. Design migration within the FLEX 10KE BGA family is supported by Altera's SameFrame pin-compatibility scheme, enabling scalable platform designs. When designing with the EPF10K100EFC484-1, ensure the configuration EPROM is correctly sized for the device bitstream, and provide 3.3 V I/O bank power even for designs operating primarily at 2.5 V core. Decoupling requires bulk and high-frequency ceramics placed within 100 mils of each power pin. The 484-BGA requires controlled-impedance escape routing and a minimum 4-layer PCB stack-up with continuous power/ground planes. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical BGA design notes that complement the manufacturer datasheet for engineers maintaining legacy FLEX 10KE designs.
EPF10K100EFC484-1N - 100K FLEX 10KE FPGA, 338 I/O, 484-BGA | Intel
The Intel (formerly Altera) EPF10K100EFC484-1N is a 100K-gate FLEX 10KE Field-Programmable Gate Array (FPGA) housed in a 484-ball FineLine BGA package. Built on a 0.22 µm CMOS SRAM process, the device delivers 4,992 logic elements (LEs), 49,152 embedded memory bits, 338 user I/Os, and 624 LABs, with a core supply voltage of 2.5 V and I/O supply of 3.3 V. The "-1" speed grade provides a worst-case propagation delay of approximately 0.6 ns and operates across the commercial 0 °C to 70 °C range. A Field-Programmable Gate Array (FPGA) is a class of programmable logic device (PLD) that combines configurable logic blocks, programmable interconnect, and I/O cells on a single die. Within the broader semiconductor hierarchy, FPGAs sit alongside microcontrollers and DSPs as reconfigurable computing fabrics. The FLEX 10KE family introduced embedded array blocks (EABs) for on-chip RAM/ROM, true dual-port RAM, and embedded multipliers, pioneering the System-on-a-Programmable-Chip (SOPC) concept that integrates memory and logic in one device. Key features include high-bandwidth embedded memory with true dual-port operation, multi-volt I/O supporting 2.5 V/3.3 V/5.0 V LVTTL/LVCMOS interfaces, JTAG-compliant IEEE 1149.1 boundary-scan testing, and built-in PCI compliance. The 484-ball FineLine BGA footprint offers the same pin-out as other FLEX 10K/10KE devices in the 484-FBGA package, enabling SameFrame pin migration within the family for design reuse and risk reduction. Architecturally, the EPF10K100EFC484-1N combines a symmetrical logic array with row-and-column interconnect, dedicated EABs for wide memory functions, and embedded multipliers that accelerate DSP operations. The SRAM-based configuration memory supports in-system reprogrammability via JTAG or dedicated configuration pins, allowing field upgrades without removing the device from the board. Typical applications include high-speed digital glue logic in telecommunications backplanes, PCI bridge designs, video processing pipelines, industrial control systems, and prototype ASIC emulation. The 100K-gate density is well matched to multi-channel glue logic, custom bus interfaces, and pre-silicon ASIC verification platforms. Designers should pay close attention to the multi-voltage I/O configuration: 5 V-tolerant inputs require proper VCCIO selection, and decoupling must follow Altera's reference decoupling scheme with bulk and high-frequency ceramics placed within 0.25 inch of every supply pin. Configuration mode and clock pins must be tied per the FLEX 10KE handbook, and unused I/O should be configured as outputs driving ground to minimize switching noise. This page synthesizes distributor pricing from Mouser and DigiKey, drop-in same-family alternatives that share the 484-FBGA footprint, and practical design guidance not duplicated in the original Altera datasheet — aiding engineers seeking FLEX 10KE replacement or migration paths in legacy systems.
EPF10K100EFC484-1X - FLEX-10KE FPGA 100K Gates 484-FBGA | Intel
The Intel (Altera) EPF10K100EFC484-1X is a member of the FLEX 10KE family of Field Programmable Gate Arrays, integrating 100,000 system gates and 4,992 logic elements (cells) into a 484-pin FineLine BGA package. It is fabricated on a 0.22 µm CMOS process, supports a core supply of 2.5 V (±5%), and is specified for an operating temperature range of 0 °C to 70 °C with a maximum internal frequency of 333.33 MHz. A Field Programmable Gate Array (FPGA) is a type of programmable logic device (PLD) that combines a large array of configurable logic blocks (LABs), embedded memory, and programmable interconnect to implement arbitrary digital circuits. FPGAs sit at the top of the programmable logic hierarchy (FPGA -> PLD -> logic IC -> integrated circuit) and are widely used as flexible alternatives to ASICs for glue logic, prototyping, signal processing, and interface bridging. The FLEX 10KE family introduced dedicated embedded array blocks (EABs) for SRAM memory, making these parts useful for designs that need on-chip RAM, FIFOs, or ROM lookup tables. Key features of the EPF10K100EFC484-1X include 624 logic array blocks (LABs), 338 user I/Os, 49,152 RAM bits distributed across embedded array blocks, and a propagation delay of approximately 0.6 ns per logic element. The device is offered in the 484-pin FineLine BGA (23 × 23 mm) package and supports in-system programmability via a JTAG-compliant serial interface. The "-1X" speed grade designates the slowest commercial-grade speed bin used in this family, suitable for cost-sensitive applications that do not require the highest possible toggle rate. Architecturally, the EPF10K100EFC484-1X combines four-input look-up tables (LUTs) inside each LAB with carry-chain logic and dedicated EABs that can be configured as 256 × 8, 512 × 4, 1024 × 2, or 2048 × 1 memory blocks. The interconnect is a hierarchical routing network with FastTrack direct-connect lines between adjacent LABs and longer row/column lines for global signals. This combination gives the device predictable timing and lets designers place critical paths on dedicated routing resources. Typical applications include telecommunications interface cards, industrial control and instrumentation logic, PCI bridge controllers, network routers and switches, and legacy systems that need a high-gate-count programmable platform. The device is also used in test-and-measurement front-ends, where its embedded RAM blocks provide buffering for sample storage. When designing with this part, plan I/O assignments around the 484-pin FineLine BGA footprint and use the Altera (now Intel) Quartus II or MAX+PLUS II toolchain for synthesis, place-and-route, and timing analysis. Note that the FLEX 10KE family is no longer recommended for new designs; consult Intel's product change notifications for current lifecycle status before committing to a long-lifecycle program.
EPF10K100EFC484-2 - 100K FLEX-10KE FPGA, 338 I/O, 484-BBGA
The Altera (Intel) EPF10K100EFC484-2 is a FLEX-10KE family Field Programmable Gate Array (FPGA) with 100,000 typical gates (49,992 logic elements / 4,992 dedicated logic cells), housed in a 484-ball FineLine BGA package measuring 23 x 23 mm. The device provides 338 user I/O pins, 4,992 LABs/Logic Elements, and operates from a 2.375 V to 2.625 V core supply, with the -2 speed grade delivering moderate performance suitable for cost-sensitive embedded and industrial designs. An FPGA (Field Programmable Gate Array) is a type of integrated circuit containing an array of configurable logic blocks (CLBs), programmable interconnects, and I/O cells that can be rewired after manufacturing to implement arbitrary digital logic. FPGAs sit in the broader hierarchy of programmable logic devices (PLDs) alongside CPLDs, and are themselves classified within the semiconductor / programmable logic category. The FLEX-10KE family is built on a SRAM-based look-up-table (LUT) architecture, requiring a configuration device or JTAG load at every power-up, which makes it well suited to designs that must be re-programmed in the field. Key features include 49,992 logic elements organized into 624 Logic Array Blocks (LABs), embedded array blocks (EABs) for memory and multiplier functions, support for multi-volt I/O standards (LVTTL, LVCMOS, PCI, SSTL), in-system programmability via JTAG, and 338 general-purpose user I/O. The 484-pin FineLine BGA package supports high-density board designs with controlled impedance signal integrity. The FLEX-10KE architecture uses 0.22 um SRAM process technology with 5 ns SRAM-configurable logic elements, delivering deterministic timing and high logic density per square millimeter. The device supports continuous, real-time in-circuit reconfiguration and is designed for high-volume, low-cost programmable logic applications. Typical applications include industrial control and factory automation glue logic, telecommunications line-card interface logic, legacy PCI bus bridging, and embedded DSP co-processing. The 338 I/O count supports wide parallel buses, while the 624 LABs are sufficient for state-machine intensive designs of 20K-50K gate-equivalent complexity. When designing with this part, ensure proper decoupling of the 2.5 V core supply with 0.1 uF and 10 uF capacitors placed close to the VCCINT pins, and route configuration clocks away from switching signals to avoid JTAG programming errors. Note that the FLEX-10KE family is mature; new designs should verify long-term supply continuity through authorized distributors. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing engineers with a single source for sourcing and substitution decisions.
EPF10K100EFC484-2X - 100K-Gate FLEX 10KE FPGA, 338 I/O | Altera
The Altera EPF10K100EFC484-2X is a member of the FLEX 10KE family of SRAM-based FPGAs, delivering 100,000 typical gates, 4,992 logic elements, 49,152 bits of embedded array RAM, and 338 user I/O pins in a 484-ball FineLine BGA package. It is built on a 0.22 µm CMOS process and operates from a 2.5 V core supply, with an I/O bank voltage tolerance that supports mixed-voltage system designs typical of late-1990s/early-2000s telecom and embedded computing platforms. A Field Programmable Gate Array (FPGA) is a semiconductor IC containing an array of configurable logic blocks (CLBs), programmable interconnect, and I/O cells, all of which are defined by a bitstream loaded into on-chip SRAM after power-up. FPGAs sit in the broader taxonomy of programmable logic devices (PLDs) alongside SPLDs, CPLDs, and anti-fuse FPGAs. The FLEX 10KE family specifically pioneered the embedded array block (EAB), allowing designers to instantiate RAM, ROM, or multiplier functions inside the logic fabric, an early example of System-on-a-Programmable-Chip (SOPC) integration. Key features of the EPF10K100EFC484-2X include 624 logic array blocks (LABs), 4,992 logic cells, 49,152 RAM bits distributed across embedded array blocks, a maximum propagation delay on the order of 0.6 ns per logic element, and 338 usable I/Os in the 484-pin FBGA. The -2X speed grade balances timing margin against power consumption, making it a common choice for production designs rather than the fastest -3 grade. Typical applications include telecommunications line cards, industrial motor control, glue logic replacement, and legacy peripheral bus bridging. The wide 338-I/O budget is well-suited to parallel bus interfacing, and the embedded array blocks ease implementation of FIFOs and small on-chip memories. A key design consideration when using this part is that the FLEX 10KE family is now in mature/end-of-life status; new designs should consider Cyclone or MAX series parts, while existing designs should verify long-term supply through franchised distributors and validated aftermarket channels. This page synthesizes distributor pricing, drop-in alternatives within the FLEX 10KE family, and design notes that complement (not duplicate) the manufacturer datasheet.
EPF10K100EFC484-3 - FLEX 10KE FPGA, 100K Gates, 484-BGA | Altera
The Intel (formerly Altera) EPF10K100EFC484-3 is a member of the FLEX 10KE family of SRAM-based Field Programmable Gate Arrays (FPGAs), integrating 100,000 typical gates (with up to 158,000 maximum system gates), 4,992 logic elements, and 49,152 bits of embedded array RAM (EAB) in a 484-ball FineLine BGA package. The device is organized into 624 Logic Array Blocks (LABs) and provides 338 user I/O pins, with a -3 speed grade targeting the fastest commercial timing closure of the FLEX 10KE family. An FPGA (Field Programmable Gate Array) is a semiconductor device built around an array of configurable logic blocks (CLBs/LABs), programmable interconnect, and I/O cells that can be re-programmed in the field to implement arbitrary digital logic. FPGAs occupy the same design role as ASICs but offer lower NRE cost and faster time-to-market. FLEX 10KE devices are organized as a hierarchical architecture in which each LAB contains eight Logic Elements (LEs), each LE comprising a 4-input lookup table, a programmable flip-flop, and a dedicated carry chain for arithmetic. Embedded Array Blocks (EABs) provide on-chip synchronous RAM of up to 2,048 bits per block, totaling 49,152 bits across the EPF10K100E. Key features of the EPF10K100EFC484-3 include support for 5.0V PCI compliance with pull-up clamping diodes on a pin-by-pin basis, multi-voltage I/O supporting 2.5V, 3.3V, and 5.0V interfaces, built-in IEEE Std. 1149.1-1990 JTAG boundary-scan test (BST) circuitry that does not consume device logic, and on-chip clock-management PLL options. The -3 speed grade represents the fastest commercial timing bin, making this variant suitable for high-throughput glue-logic, custom bus-interface, and prototype designs where propagation delay is the critical constraint. Typical applications for the EPF10K100EFC484-3 include PCI bus interface bridges in legacy computing platforms, custom peripheral controllers, telecommunications backplane glue logic, industrial machine-control state machines, and instrumentation front-ends with hardware-accelerated DSP preprocessing. The 338 available I/O pins comfortably accommodate wide parallel buses (32-bit data plus control) without external muxing. When designing with this part, supply the core with 2.5V and the I/O banks with their bank-specific VCCIO (2.5V/3.3V/5.0V) and verify JTAG chain ordering against the BSDL file before board bring-up. The 484-BGA package requires a multilayer PCB with controlled-impedance traces and proper thermal vias under the die-up substrate. This page synthesizes distributor pricing, package-level drop-in alternatives within the FLEX 10KE family, and practical design notes not consolidated in any single manufacturer document, helping procurement and design engineers make informed lifecycle decisions for legacy designs.
EPF10K100EFC484-3N - 100K Gates FLEX 10KE FPGA | Intel / Altera
The Intel / Altera EPF10K100EFC484-3N is a high-density FLEX 10KE family Field Programmable Gate Array (FPGA) with 100K gates, 4992 logic cells, 49152 bits of embedded array block (EAB) memory, and 338 user I/Os, housed in a 484-ball FineLine BGA (FBGA) package. Manufactured on a 0.22 µm CMOS process, it operates from a 2.5 V core supply with MultiVolt I/O support, and is offered in a commercial temperature grade. A Field Programmable Gate Array (FPGA) is a type of programmable logic device (PLD) - an integrated circuit whose logic function is defined after manufacture by the end user. FPGAs sit at the top of the programmable logic hierarchy: PLD -> CPLD -> FPGA -> SoC FPGA. Within that hierarchy, the FLEX 10KE family belongs to the SRAM-look-up-table (LUT) based FPGA category, where configuration bits are stored in SRAM cells and the device is reprogrammable in-system. Key features include 624 logic array blocks (LABs), 12 embedded array blocks (EABs) totaling 49,152 RAM bits, 200 MHz internal performance, pin-by-pin slew-rate control, open-drain output option, PCI pull-up clamping diode support, and MultiVolt I/O allowing the I/O bank voltage (VCCIO) to differ from the core voltage (VCCINT). The 'FC484' suffix denotes the 484-ball FineLine BGA package and 'N' indicates a lead-free, lead-free reflow-compatible device. The FLEX 10KE architecture combines fine-grained logic elements (LEs) organized into LABs with coarse-grained EABs that efficiently implement RAM, ROM, and multiplier functions. The '-3' speed grade designates the fastest commercial speed bin available for this family. Per-pin options are configured using Altera (now Intel Quartus / MAX+plus II) logic-option settings, eliminating external glue logic. Typical applications include high-volume glue logic consolidation, PCI bus interface bridges, telecommunications backplane controllers, industrial control and factory automation, and legacy ASIC replacement designs where the FLEX 10KE's combination of 100K gates, abundant I/O, and embedded RAM provides an optimal balance of density and flexibility. When designing with this device, plan for SRAM-based configuration: the FPGA must be configured from an external EPROM, flash, microcontroller, or JTAG cable on every power-up. Provide decoupling per Quartus guidelines, respect I/O bank VCCIO grouping rules, and verify MultiVolt signaling against downstream ASIC voltages. This page synthesizes distributor pricing, drop-in same-package FLEX 10KE speed-grade alternatives, and practical design notes not found in the manufacturer datasheet alone.
EPF10K100EFI256-2 - FLEX 10KE FPGA 100K Gates 250MHz 256FBGA | Intel
The Intel EPF10K100EFI256-2 is a member of the FLEX 10KE family of SRAM-based FPGAs delivering 100,000 typical gates, 4,992 logic elements, and 49,152 RAM bits in a 256-ball FineLine BGA package. It operates at a core voltage of 2.5 V with a maximum toggle rate of 250 MHz and a pin-to-pin propagation delay of approximately 0.5 ns. The device exposes 191 user I/O pins and is built on a 0.22 µm CMOS process with embedded array blocks (EABs) for true System-on-a-Programmable-Chip (SOPC) integration. What is an FPGA? An FPGA (Field Programmable Gate Array) is a programmable logic device that combines the integration density of an ASIC with the flexibility of in-field reprogrammability. Hierarchy: FPGA -> programmable logic -> logic IC -> integrated circuit -> semiconductor. Within the FPGA taxonomy, the FLEX 10KE family sits at the high-density end of the SRAM-based segment, featuring embedded array blocks (EABs) that allow memory functions (RAM, ROM, FIFO) to be efficiently distributed across the fabric alongside the logic array blocks (LABs). This hybrid embedded/logic architecture predates modern SoC FPGAs but was groundbreaking for its era as one of the first SOPC-capable platforms. Key features of the EPF10K100EFI256-2 include 624 LABs organized across 4,992 logic cells, 12 embedded array blocks (EABs) providing up to 24 Kbits of distributed RAM, 191 usable I/O pins supporting multiple I/O standards including 3.3 V LVTTL and LVCMOS, and a JTAG-compliant IEEE 1149.1 boundary-scan test interface. The device supports in-system programming (ISP) via the serial passive configuration scheme and is supported by the Altera Quartus and MAX+PLUS II design toolchains. The EPF10K100EFI256-2 is fabricated on a 0.22 µm four-layer metal CMOS process and uses a 2.5 V core supply with 3.3 V tolerant I/O. The architecture separates logic resources (LABs) from memory resources (EABs), enabling efficient implementation of glue logic, state machines, register-intensive datapaths, and small memory blocks in a single device. The 256-ball FineLine BGA package uses a 1.0 mm ball pitch and a 17 x 17 mm body suitable for high-density surface-mount designs. Typical applications for the EPF10K100EFI256-2 include telecommunications interface bridging, industrial control logic, glue logic replacement for ASIC prototypes, and legacy system re-engineering where the FLEX 10KE family has been deployed for two decades. Engineers use this part when modernizing an existing FLEX-based design without re-laying out the PCB, or when the proven SOPC architecture is sufficient for the application. When designing with this device, ensure that the configuration EEPROM and JTAG chain match the chosen configuration mode (PS, AS, or JTAG). The 2.5 V core requires careful power-rail sequencing relative to the 3.3 V I/O supply, and decoupling capacitors must be placed close to the FBGA balls to mitigate simultaneous switching noise on the high-density I/O banks. This page synthesizes distributor pricing, SameFrame pin-compatible migration paths, and practical design considerations specific to the FLEX 10KE family not found in the manufacturer datasheet alone.
EPF10K100EFI484-2 - FLEX 10KE FPGA 100K Gates 484-FBGA | Intel / Altera
The Intel (formerly Altera) EPF10K100EFI484-2 is a FLEX 10KE family Field-Programmable Gate Array (FPGA) delivering 100,000 system gates and 4,992 logic elements in a 484-ball FineLine BGA (FBGA) package. Built on a 0.25 µm CMOS SRAM process, it integrates 49,152 bits of embedded array memory, 624 logic array blocks (LABs) and 338 user I/O pins, providing dense programmable logic with on-chip memory and high pin-count connectivity for system-on-a-programmable-chip (SOPC) designs. A Field-Programmable Gate Array (FPGA) is a type of programmable logic device (PLD) containing an array of configurable logic blocks (CLBs), programmable interconnect, and I/O cells that engineers can program after manufacture to implement arbitrary digital circuits. FPGAs sit between fixed-function ASICs (higher performance, higher NRE, longer lead time) and CPLDs (simpler, lower density) in the programmable logic hierarchy, and are widely used for glue logic, bus bridging, signal processing, and rapid prototyping. The FLEX 10KE architecture embeds an "Embedded Array" block (EAB) alongside the logic array, enabling efficient on-chip RAM and DSP-style functions. Each EAB provides up to 2,048 bits of memory, and the device includes dedicated carry chains for fast arithmetic, a 4-input look-up table (LUT) per logic element, and JTAG-compliant boundary-scan testing. The part operates from a 2.5 V core supply with 3.3 V multi-voltage I/O support and is specified over the industrial 0 °C to +70 °C range. Typical applications include telecommunications line cards, industrial control and glue logic, high-speed data acquisition front-ends, networking bridges, and legacy digital design replacement. The 338 I/O count supports wide parallel buses and multiple serial channels simultaneously, which is critical for backplane interfaces and processor-coprocessor pipelines in 1990s and early-2000s equipment that still requires long-term support. When designing with this device, ensure your Quartus or MAX+PLUS II toolchain is configured for the FLEX 10KE family; verify core and I/O voltage sequencing at power-up; and respect the FBGA-484 PCB land pattern, which differs from BGA-356 variants of the same family.
EPF10K100EQC208-1 - 100K Gate FLEX-10KE FPGA, 147 I/O | Altera
The Altera EPF10K100EQC208-1 is a member of the FLEX 10KE programmable logic family, delivering approximately 100,000 typical gates of CMOS SRAM-based logic fabric packaged in a 208-pin Power/QFP (208-BFQFP, 28x28 mm) device. The part integrates 624 Logic Array Blocks (LABs) with 4,992 logic elements (LEs) and 147 user I/O pins, providing System-on-a-Programmable-Chip (SOPC) integration through an embedded array block for implementing megafunctions such as multipliers, microcontrollers and DSP primitives. A Field-Programmable Gate Array (FPGA) is a programmable logic device whose logic blocks, interconnect, and I/O cells are configured by the designer after manufacture via a configuration bitstream. The FLEX 10KE family belongs to the broader taxonomy of programmable logic -> CPLD/FPGA -> SRAM-based FPGA -> embedded-array FPGA -> power management/communications glue logic. The "-1" speed grade indicates the slowest commercial speed bin, trading timing margin for lower cost, while "QC208" denotes the quad flat-pack 208-pin pinout (208-BFQFP) and "E" denotes the FLEX 10KE sub-series. Key features include 49,152 RAM bits distributed across embedded array blocks (EABs), 147 user I/O pins, a 2.5 V core supply (per the Altera-micro attribute block) with 3.3 V multi-voltage I/O support, and in-system programmability through the serial configuration interface. The 208-BFQFP footprint is one of the largest Altera offered in the FLEX 10KE generation and is frequently preferred over BGA alternatives when board-level rework is required. The part is built on a 5 V-tolerant CMOS process and supports JTAG (IEEE 1149.1) boundary-scan testing. The FLEX 10KE architecture combines a logic array for fine-grained glue logic with an embedded array for wide datapath functions, enabling a single chip to replace dozens of TTL/CMOS glue parts alongside small microcontrollers. Designers can implement UART, FIFO, PCI soft cores, and Altera MegaCore functions such as Nios processors. The 0.35 µm SRAM process provides a propagation delay around 0.6 ns and an internal global clock network for synchronous designs up to roughly 80-100 MHz system clock. Typical applications include telecom line cards, industrial control backplanes, PCI bridge designs, and legacy digital signal processing pre-processing. The wide I/O count (147 pins) accommodates 32-bit datapaths plus address/control, making the part a common choice for protocol-bridge ASIC prototypes and aerospace ground-test equipment. When designing, observe the 2.5 V core / 3.3 V I/O supply split - a single 3.3 V rail does NOT power the core. Series-termination resistors are recommended on clock and high-speed I/O when driving backplane traces beyond 50 mm. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
EPF10K100EQC208-1N - 100K Gate FLEX-10KE FPGA, 147 I/O, 208-PQFP | Intel
The Intel (formerly Altera) EPF10K100EQC208-1N is a FLEX-10KE family Field Programmable Gate Array (FPGA) with 100,000 typical gates, 4,992 logic elements, 49,152 bits of embedded RAM, and 147 user I/Os, packaged in a 208-pin Plastic Quad Flat Pack (PQFP) measuring 28x28 mm. It is a member of the FLEX 10K programmable logic family that pioneered embedded array block (EAB) integration. A Field Programmable Gate Array (FPGA) is a type of integrated circuit that contains an array of configurable logic blocks (CLBs), programmable interconnects, and configurable I/O cells. FPGAs sit in the digital logic hierarchy between simple PLDs/CPLDs and ASICs, offering higher logic density than CPLDs while avoiding the NRE cost of ASICs. The FLEX 10K family, launched in the mid-1990s, was the industry's first family to embed dedicated SRAM memory blocks (Embedded Array Blocks, EABs) alongside general-purpose logic, enabling System-on-a-Programmable-Chip (SOPC) integration. This places the EPF10K100EQC208-1N in the broader taxonomy of programmable logic -> FPGA -> SRAM-based FPGA -> embedded-block FPGA. Key features of the EPF10K100EQC208-1N include 147 user I/O pins supporting multiple I/O standards, 49,152 bits of distributed SRAM organized into EABs, in-system programmability via SRAM configuration cells, and a 2.375V to 2.625V core supply (5V tolerant I/O with proper reference). The '-1N' speed grade denotes the faster commercial speed bin, while 'N' indicates a lead-free, RoHS-compliant package. The device is built on a 0.42 um CMOS SRAM process with a maximum internal propagation delay of approximately 0.6 ns. The architecture combines a symmetrical array of logic elements (LEs) with rows of EABs spanning the full device width, providing high-density memory and arithmetic functions. Each LE contains a 4-input look-up table (LUT) and a programmable register. The continuous FastTrack Interconnect routes signals across rows and columns with predictable timing, making static timing analysis straightforward. Configuration bitstream is loaded from a serial or parallel PROM into SRAM cells at power-up; the design is volatile and must be reconfigured on each power cycle. Typical applications include glue logic replacement, bus and protocol bridging (PCI, ISA, VME), custom DSP datapaths, telecommunications line-card controllers, industrial control and instrumentation front-ends, and legacy system refresh where original FLEX 10K designs must be replicated or migrated. Designers also use the EABs to implement ROM, dual-port RAM, FIFO, and arithmetic functions such as multipliers. The PQFP-208 package supports hand-soldering and socketed prototyping, which is convenient for industrial and laboratory use. When designing with the EPF10K100EQC208-1N, ensure a stable 2.5V core supply and configure all VCCINT and VCCIO pins per the Altera datasheet; missing power pins will cause unpredictable behavior. A configuration PROM (such as the EPC2 or EPC8 in the same family) is required to load the bitstream at power-up. JTAG boundary-scan and programming are supported, enabling in-system updates. Designers should also note that the FLEX 10K family is a mature legacy product line - verify long-term availability with distributors before committing to new designs, and consider a Cyclone or Cyclone II migration path when starting new projects. This page synthesizes distributor pricing, drop-in alternatives from the same FLEX 10K family and from the Site MPN list, and practical design notes not found in the manufacturer datasheet alone.