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EPF10K100ARI240-3 - 100K Gate FLEX 10KA FPGA, 189 I/O, 240-RQFP | Intel / Altera
EPF10K100ARI240-3

EPF10K100ARI240-3 - 100K Gate FLEX 10KA FPGA, 189 I/O, 240-RQFP | Intel / Altera

The Intel / Altera EPF10K100ARI240-3 is a 100,000-gate FLEX 10KA embedded programmable logic device (PLD) with 189 user I/Os, housed in a 240-pin RQFP (Exposed Pad) package. Per the Altera FLEX 10KA datasheet DS-F10K-4.2, it integrates 4,992 logic elements (LEs), 24,576 RAM bits, and 624 logic array blocks (LABs) fabricated on a 0.30 µm CMOS process, with 3.3 V core supply and PCI-compliant I/O. A field programmable gate array (FPGA) is a semiconductor device built around an array of configurable logic blocks (CLBs), programmable interconnect, and I/O cells that the designer can re-program after manufacture. FPGAs sit between standard logic ICs and custom ASICs in the design hierarchy: they offer ASIC-like integration and parallelism, but with no NRE cost and instant turn-around. The FLEX 10KA family was the industry's first embedded programmable logic device family to deliver System-on-a-Programmable-Chip (SOPC) integration, combining an embedded array block (EAB) for memory / DSP functions with a logic array for general glue logic. Key features include 0.6 ns pin-to-pin propagation delay, 125 MHz maximum operating frequency, built-in Joint Test Action Group (JTAG) boundary-scan test circuitry compliant with IEEE Std. 1149.1-1990, and 5.0-V PCI bus support on selected variants with reduced load. The 240-pin RQFP package exposes a thermal pad for heat dissipation and provides 189 usable I/Os after accounting for configuration, JTAG, power, and clock pins. The FLEX 10KA architecture combines Look-Up Table (LUT)-based logic with embedded array blocks, giving designers a flexible platform for both combinatorial and registered logic and on-chip memory. Its 0.30 µm SRAM process supports in-system reconfigurability (ISP) via the serial configuration device interface, and the 3.3 V supply reduces power consumption compared with 5.0 V FLEX 10K predecessors. Typical applications include PCI bus interfaces, glue logic for legacy industrial control boards, telecommunications backplane controllers, and prototyping platforms for ASIC emulation. The wide operating temperature range and the FLEX 10KA family's pin-compatibility across density grades make it a popular drop-in option for designs ranging from 10K to 250K gates. When designing with this device, plan for an external configuration EPROM (EPC1, EPC2, or EPC16) because the SRAM-based configuration memory is volatile and must be loaded at every power-up. Note that the EPF10K100ARI240-3 is mature but considered NRND / last-time-buy by many distributors; new designs should evaluate Cyclone or MAX series equivalents unless long-term availability of the specific 240-RQFP footprint is required. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet, giving engineers an information-density advantage when selecting a FLEX 10KA device for industrial or telecom designs.

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EPF10K100ARI240-3N - 100K-Gate FLEX 10KA FPGA, 240-RQFP | Intel
EPF10K100ARI240-3N

EPF10K100ARI240-3N - 100K-Gate FLEX 10KA FPGA, 240-RQFP | Intel

The Intel (formerly Altera) EPF10K100ARI240-3N is a 100,000-gate FLEX 10KA family Field-Programmable Gate Array (FPGA) housed in a 240-pin RQFP (32x32 mm) exposed-pad package. The device integrates 4,992 logic cells, 24,576 RAM bits, and 189 user I/Os, fabricated on a 0.30 µm CMOS SRAM process with 3.3 V core supply and a 3.3 V I/O bank. Speed grade -3N designates a -40 °C to +85 °C industrial temperature range with the standard (non-A grade) timing. What is an FPGA? An FPGA (Field-Programmable Gate Array) is a programmable logic device whose logic fabric, routing, and I/O cells can be configured by the end user via a hardware description language such as VHDL or Verilog. Within the broader taxonomy of integrated circuits, FPGAs sit between CPLDs (smaller, non-volatile) and ASICs (custom-silicon, high NRE). The FLEX 10KA family was the industry's first embedded programmable logic family, providing System-on-a-Programmable-Chip (SOPC) integration by combining an embedded array block (EAB) for megafunctions and memory with a logic array block (LAB) fabric. The EPF10K100A is the largest-density member of the family. Key features of the EPF10K100ARI240-3N include MultiVolt I/O (supporting 2.5 V, 3.3 V, and 5.0 V interface levels on a per-pin basis via VCCIO), PCI-compliant clamping diodes with slew-rate control, individual open-drain output options, and dedicated global clock networks. The embedded array blocks deliver efficient on-chip memory, typically configured as 4,096-bit RAM per EAB. Combined with 624 LABs, the device supports up to 125 MHz internal operation and approximately 100,000 typical gates (4,992 logic elements). Typical applications include glue logic and bus bridging in industrial controllers, telecommunications backplane interfaces, PCI bridge prototyping, and legacy system refresh designs where the FLEX 10KA silicon is already qualified. The RQFP-240 footprint has been in continuous production since the late 1990s, and Intel/Altera continues to ship the part for long-lifecycle programs in medical, defense, and industrial automation. When designing with this FPGA, allocate adequate decoupling (100 µF bulk + 0.1 µF per VCC/VCCIO pin pair) and a minimum of four-layer PCB with dedicated power and ground planes. Use the Quartus II 13.0sp1 (the final version supporting FLEX 10KA) for design entry and ACEX 1K / FLEX 10K device programming via ByteBlasterMV or a compatible JTAG cable. This page synthesizes distributor pricing, FLEX 10KA drop-in alternatives, and practical legacy-design notes not consolidated in the original manufacturer datasheet, helping engineers plan both new designs and long-term maintenance of installed bases.

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EPF10K100BFC256-1 - FLEX-10K 100K-Gate FPGA | Intel/Altera | 256-BGA
EPF10K100BFC256-1

EPF10K100BFC256-1 - FLEX-10K 100K-Gate FPGA | Intel/Altera | 256-BGA

The Intel/Altera EPF10K100BFC256-1 is a FLEX-10K® family Field-Programmable Gate Array (FPGA) housed in a 256-ball Fine-Pitch Ball Grid Array (FBGA) package, providing 100,000 typical system gates with 6,144 RAM bits and 576 logic elements. It is built on a 0.42 µm SRAM-based process and operates from a single 4.75V to 5.25V supply, with an industrial/commercial junction temperature grade. The part is offered in the commercial -1 speed grade, making it the fastest bin within the FLEX-10K family at this device density. An FPGA (Field-Programmable Gate Array) is a type of programmable logic device (PLD) that belongs to the broader integrated circuit hierarchy: FPGA -> programmable logic -> logic IC -> semiconductor. FPGAs differ from CPLDs in that they offer higher logic density and on-chip distributed RAM, while consuming more static power. The FLEX-10K family was Altera's first generation to embed array blocks (EABs) used as synchronous SRAM, allowing designers to instantiate small FIFOs, ROMs, and dual-port memories without external devices. Key features include 100,000 typical system gates, 6,144 total RAM bits, 576 logic elements, embedded JTAG (IEEE Std 1149.1) boundary-scan support, and 4.75V-5.25V single-supply operation. The device is in-system programmable via the Altera ByteBlaster or BitBlaster configuration port, and supports configuration from EPROM, EEPROM, or embedded processor. Altera documentation recommends that new FLEX-10K100B designs migrate to the EPF10K100E family, which is pin-compatible with this part and offers enhanced features at lower cost. The FLEX-10K architecture uses a sea-of-LABs (Logic Array Blocks) fabric interleaved with EAB (Embedded Array Block) memory. Each LAB contains 8 logic elements, and each EAB provides 2,048 bits of dual-port RAM. The interconnect uses continuous FastTrack channels that span the entire die, providing predictable timing. The -1 speed grade means the part is factory-binned for the highest toggle rate and shortest propagation delay within the FLEX-10K family, suitable for high-throughput state machines, glue logic, and bus-interface bridges in telecom and industrial systems. Typical applications include telecom bus interfaces (UTOPIA, POS-PHY), industrial control glue logic, legacy PCI bridges, and DSP co-processing front-ends. The 256-BGA package provides 244 user I/O pins, supporting high pin-count parallel interfaces. Engineers should consult the FLEX 10K datasheet for detailed timing specifications and Quartus/MAX+PLUS II configuration support. When designing with this device, ensure the 5V supply rail is well-decoupled with 0.1 µF ceramic capacitors within 5 mm of each supply ball. Although the JTAG chain adds up to 31,250 gates, designers should leave timing margin for boundary-scan shift operations. For new designs, Altera recommends migrating to EPF10K100EFC256 which is pin-compatible with this part.

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EPF10K100BFC256-2 - FLEX 10K FPGA 100K Gates 256-BGA | Altera
EPF10K100BFC256-2

EPF10K100BFC256-2 - FLEX 10K FPGA 100K Gates 256-BGA | Altera

The Altera (Intel) EPF10K100BFC256-2 is a member of the legacy FLEX 10K family of SRAM-based Field Programmable Gate Arrays (FPGAs), providing 100,000 typical gates, 4,992 logic cells (LEs), and 6,144 bits of embedded RAM in a 256-ball FineLine BGA package. The "-2" speed grade denotes a faster commercial-grade device, while the "BFC256" suffix specifies the 256-pin FBGA package and commercial 0C to +70C operating range. Built on a 0.22 um CMOS SRAM process, the part operates from a 4.75 V to 5.25 V single supply. What is an FPGA? An FPGA (Field Programmable Gate Array) is a semiconductor device containing an array of configurable logic blocks (CLBs), programmable interconnects, and dedicated I/O cells that can be re-programmed to implement arbitrary digital logic functions. FPGAs sit between fixed-function ASICs and software-programmable processors in the design hierarchy: ASIC < FPGA < CPLD < microcontrollers < microprocessors. The FLEX 10K family was the industry's first FPGA family with embedded array blocks (EABs), a forerunner to modern block RAM, allowing on-chip memory for FIFO, ROM, and lookup-table applications. Key features include 4,992 logic elements, 6,144 total RAM bits distributed across embedded array blocks, 250 MHz internal operation, and 12 ns pin-to-pin logic delay per the device datasheet. The device supports in-system configuration via the Altera MAX+PLUS II or Quartus design environment, hot-swap insertion tolerant I/O, and JTAG boundary-scan testing. The 256-ball FBGA (17 x 17 mm) package provides high-density interconnect suitable for production volume designs. Architecturally, the EPF10K100BFC256-2 implements the FLEX 10K Lookup Table (LUT)-based logic element with each LE containing a 4-input LUT, a programmable register, and dedicated carry chain logic for arithmetic operations. Embedded Array Blocks (EABs) provide 2,048 bits of dual-port RAM each and can be cascaded for wider or deeper memory configurations. The device uses SRAM configuration cells, meaning the bitstream must be loaded from an external EPROM, flash, or micro-controller at power-up. Typical applications include legacy telecommunications line cards, industrial control glue logic, ASIC prototyping, and PCI bus interface bridging. The combination of 100K gates and 6 Kbit embedded RAM was sufficient for medium-complexity designs such as custom state machines, FIFO buffers, and peripheral controllers in the late 1990s and early 2000s, and many of those designs remain in service today requiring lifecycle support. When designing with this device, note that the part is in production but the FLEX 10K family has been superseded by Cyclone and MAX series FPGAs. Use MAX+PLUS II version 10.2 or Quartus 4.0 for legacy support, and verify that the JTAG chain and configuration EPROM are compatible with 5V tolerance before migrating designs. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical legacy-support notes that are not found in the original FLEX 10K datasheet, providing engineers maintaining existing designs a single reference.

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EPF10K100BFC256-3 - FLEX 10KE FPGA 100K Gates | Intel / Altera
EPF10K100BFC256-3

EPF10K100BFC256-3 - FLEX 10KE FPGA 100K Gates | Intel / Altera

The Intel / Altera (formerly Altera) EPF10K100BFC256-3 is a member of the FLEX 10KE family of Embedded Programmable Logic Devices (EPLDs), delivering 100,000 typical gates, 4,992 logic elements (LEs), and 200 MHz internal performance on a 0.22 µm SRAM process. The device integrates 12 embedded array blocks (EABs), each providing 2,048 bits of RAM for a total of 24,576 RAM bits, in a 256-pin FineLine BGA (FBGA) package. The -3 speed grade designation places this variant in the middle of the FLEX 10KE speed portfolio, suitable for general-purpose logic integration and PCI-compliant bus interface designs. An FPGA (Field-Programmable Gate Array) is a semiconductor integrated circuit composed of configurable logic blocks (LBs), programmable interconnect, and I/O cells, all of which can be re-programmed in-system via SRAM configuration memory. The FLEX 10KE family combines traditional FPGA logic fabric with on-chip dual-port RAM through Embedded Array Blocks, blurring the boundary between pure logic and memory. The hierarchy in the broader market runs FPGA -> programmable logic -> PLD -> digital semiconductor. This positions the FLEX 10KE as a second-generation embedded-programmable-logic family intended for glue-logic, bus-interface, and modest DSP tasks in the late-1990s/early-2000s design ecosystem. Key features include a maximum operating frequency of 200 MHz, 4,992 logic elements, 12 embedded array blocks providing 24,576 RAM bits, a maximum of 406 user I/O pins via the FBGA package, and on-chip JTAG boundary-scan test (BST) circuitry compliant with IEEE Std. 1149.1-1990. The device also supports 5.0-V PCI Local Bus Specification Rev. 2.2 compliance at 33 MHz for -1 speed grade devices, and 3.3-V PCI compliance for other speed grades. The SRAM-based configuration memory means the device must be configured at every power-up from an external EEPROM or microcontroller. Architecturally, the FLEX 10KE combines a logic array fabric organized into Logic Array Blocks (LABs), each containing ten LEs, with embedded array blocks that can be configured as wide RAM or ROM. FastTrack interconnect provides horizontal/vertical routing between rows and columns of LABs, and a per-pin I/O element supports tri-state buffers and registers. The 0.22 µm process delivers 200 MHz performance while supporting the 2.5-V core supply. Typical applications include PCI bus interface cards, telecommunications glue logic, industrial control boards, embedded system I/O expansion, and legacy design re-spins. The 256-pin FBGA package provides ample I/O for high-pin-count bus interfaces. When designing with this FPGA, ensure that the configuration memory source (typically an EPC2 or EPC1 configuration device) is correctly specified, and confirm that the Quartus design software (or legacy MAX+PLUS II for older FLEX designs) supports the FLEX 10KE family for the targeted compile flow. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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EPF10K100BQC208-1 - 100K FLEX FPGA 6144 RAM 208-PQFP | Altera
EPF10K100BQC208-1

EPF10K100BQC208-1 - 100K FLEX FPGA 6144 RAM 208-PQFP | Altera

The Altera EPF10K100BQC208-1 is a member of the FLEX 10K family of SRAM-based Field Programmable Gate Arrays (FPGAs) with 6144 bits of distributed RAM, supplied in a 208-pin Power Quad Flat Pack (208-BFQFP/PQFP) measuring 28x28 mm, operating from a 4.75 V to 5.25 V single supply. It is part of the legacy FLEX-10K embedded-programmable logic series originally developed by Altera (now Intel), with the speed grade suffix "-1" denoting the slowest of three FLEX 10K speed grades (others being -2 and -3) and suitable for combinatorial input/output paths where tpd is the limiting timing parameter. Background: A Field Programmable Gate Array (FPGA) is a semiconductor integrated circuit composed of an array of configurable logic blocks (CLBs), programmable interconnects, and I/O cells that designers can reconfigure after manufacture to implement arbitrary digital logic. FPGAs sit above general-purpose microcontrollers and below custom ASICs in the design complexity pyramid - they offer higher integration than discrete logic but lower per-unit cost than a full ASIC at low volume. Within that hierarchy, the FLEX 10K family is positioned as a high-density programmable logic device (PLD) using a fine-grained architecture with embedded array blocks (EABs) that can be configured as memory or wide fan-in logic, giving it DSP-friendly characteristics for its generation. Key features of the EPF10K100BQC208-1 include 6144 total RAM bits organized as 576 logic elements with embedded memory, a single 5 V supply rail, an internal combinatorial propagation delay quoted at 11 ns for representative loading conditions, and a 208-pin PQFP plastic package with gull-wing leads. The device is reconfigurable in-system via SRAM configuration cells, allowing unlimited reprogramming cycles during development and in-field updates. From an architectural standpoint, the FLEX 10K device uses a continuous SRAM routing structure called the FastTrack interconnect, which provides predictable timing across all logic paths - a meaningful advantage over older segmented interconnect architectures. Each logic element contains a 4-input look-up table, a programmable flip-flop, and a carry chain for fast arithmetic, while embedded array blocks provide 2 Kbit memory blocks usable as RAM, ROM, or wide function generators. Typical applications include glue logic replacement, custom state-machine controllers, interface bridges between microprocessors and peripherals, DSP preprocessing blocks, and legacy industrial-control upgrades where the 5 V-tolerant I/O and PQFP-208 footprint simplify PCB integration. Designers using this device typically work with the Altera MAX+PLUS II or Quartus MAX+PLUS legacy toolchain. Design consideration: because the configuration is volatile SRAM, the FPGA must be loaded from a serial or parallel configuration EPROM on every power-up, and in-system reprogramming must respect the CONF_DONE handshake timing defined in the FLEX 10K datasheet family. Engineers planning a new design around this part should also evaluate Cyclone or MAX II families as lower-cost 5 V-tolerant alternatives where pin count is moderate. This page consolidates distributor pricing, 208-PQFP drop-in alternatives within the FLEX 10K family, and practical configuration/PCB design notes not all gathered in a single place on the original datasheet.

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EPF10K100BQC208-2 - FLEX 10K FPGA 100K Gates 5V 208-PQFP | Altera
EPF10K100BQC208-2

EPF10K100BQC208-2 - FLEX 10K FPGA 100K Gates 5V 208-PQFP | Altera

The Altera (Intel) EPF10K100BQC208-2 is a member of the FLEX 10K family of SRAM-based Field Programmable Gate Arrays (FPGAs), delivering 100,000 typical gates in a 208-pin PowerQuad Flat Pack (PQFP) package with a commercial-grade speed grade of -2. The device integrates 4,992 Logic Elements (LEs), 3,744 dedicated flip-flops, and 12 Embedded Array Blocks (EABs) providing 24,576 RAM bits (commonly cited as 6,144 logical user RAM bits). The supply voltage range is 4.75V to 5.25V, and the device is fabricated on a 0.42 µm CMOS SRAM process with multi-vendor I/O support. An FPGA (Field Programmable Gate Array) is a type of programmable logic device (PLD) that contains an array of configurable logic blocks (CLBs/LABs), programmable interconnect, and programmable I/O cells. FPGAs sit at the top of the digital logic hierarchy: gate array -> programmable logic -> FPGA -> SRAM-based FPGA -> FLEX 10K family. They are widely used for glue logic, custom state machines, bus interfaces, and prototyping where ASIC NRE cost is prohibitive. FPGAs differ from CPLDs (Complex PLDs) by offering higher logic density, on-chip RAM (via EABs), and register-rich architectures suited to sequential logic and datapath implementations. Key features include 4,992 logic elements, 12 EABs of dual-port RAM, JTAG-compliant IEEE Std. 1149.1 boundary-scan support, multi-volt I/O (3.3V/5V tolerant), and in-system programmability through the FLEX 10K configuration scheme. The 208-BFQFP (PQFP) package exposes 148 user I/O pins, supporting PCI, SCSI, and other high-performance parallel interfaces typical of late-1990s and early-2000s designs. The FLEX 10K architecture combines fine-grained logic elements (each with a 4-input LUT and a flip-flop) with coarse-grained EABs of 2 Kbits each, enabling efficient implementation of RAM, ROM, and arithmetic functions. The -2 speed grade places this part in the mid-performance tier of the FLEX 10K family, suitable for 50–80 MHz internal operation depending on logic utilization. Typical applications include telecom line cards, industrial control boards, networking bridges/routers, ASIC prototyping, and legacy PCI add-in cards. Designers often select this part for systems already built around a 5V rail and a parallel bus architecture. Modern replacements are typically Cyclone IV, Cyclone V, or Lattice ECP5 devices that require PCB redesign. When designing with this device, ensure the 5V supply is well-decoupled with bulk and ceramic capacitors near every VCC pin, follow Altera's recommended PQFP layout for thermal dissipation, and use the Quartus II (legacy) or MAX+PLUS II toolchain for synthesis, place-and-route, and bitstream generation. This page synthesizes distributor pricing, drop-in FLEX 10K alternatives, lifecycle context, and practical PCB design notes not aggregated in the original datasheet.

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EPF10K100BQC208-3 - 100K Gate FLEX-10KE FPGA, 208-PQFP | Altera
EPF10K100BQC208-3

EPF10K100BQC208-3 - 100K Gate FLEX-10KE FPGA, 208-PQFP | Altera

The Altera (now Intel) EPF10K100BQC208-3 is a FLEX-10KE-family Field Programmable Gate Array (FPGA) IC delivering 100,000 typical gates, 4,992 logic elements, and 6,144 RAM bits, housed in a 208-pin PQFP (28x28 mm, FQFP/BFQFP) package. It operates from a 4.75V to 5.25V single supply with a 0.22 µm CMOS process and is specified for a 14.5 ns pin-to-pin delay (speed grade -3, 200 MHz internal performance). The FLEX-10KE family combines fine-grained look-up table logic with embedded array blocks (EABs) for on-chip RAM/ROM, and its FastTrack Interconnect continuous routing fabric delivers predictable timing across the device. An FPGA (Field-Programmable Gate Array) is a programmable logic device that lets designers implement arbitrary digital logic using a matrix of configurable logic blocks (CLBs), programmable interconnect, and I/O cells - in the taxonomy hierarchy: logic cell -> logic element -> CLB -> FPGA -> programmable logic device (PLD) -> digital IC -> semiconductor. FPGAs occupy the middle ground between fixed-function ASICs and low-density CPLDs, offering densities from a few thousand to millions of logic elements with re-programmability via SRAM or antifuse configuration memory. Key features of the EPF10K100BQC208-3 include 4,992 logic cells (576 logic elements per the older LEs count), 6,144 bits of embedded RAM, multi-volt I/O support for 5.0V/3.3V PCI compliance, JTAG-based in-system programmability via the IEEE 1149.1 boundary-scan interface, and built-in low-skew clock distribution trees. The device is 100% functionally tested at the factory and supports SRAM-based configuration via an external EPROM or Altera configuration device. Typical applications span glue-logic integration, custom state machines, bus-interface bridges (PCI, ISA), DSP datapath pre-processing, industrial control, telecommunications line-card interface logic, and legacy prototype-to-production conversion. Because the FLEX-10KE architecture is well documented and the Quartus II (legacy: MAX+PLUS II) toolchain still supports it, the part is often seen in long-life-cycle industrial and military systems. A key design consideration is the 5V-only core supply: level translation to 3.3V peripherals must be handled externally or by selecting a 3.3V-tolerant FLEX-10K variant. Engineers should also budget for configuration time on power-up (the device loads its SRAM from an external boot PROM) and provide proper JTAG chain termination. This page synthesizes distributor pricing, drop-in alternatives within the FLEX-10K family, and practical design notes not found in the manufacturer datasheet alone.

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EPF10K100BQC240-1 - 100K FLEX-10K FPGA, 240-PQFP | Intel / Altera
EPF10K100BQC240-1

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.

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EPF10K100BQC240-2 - 100K Gate FLEX-10KE FPGA, 240-PQFP | Altera
EPF10K100BQC240-2

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.

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EPF10K100BQC240-3 - 100K Gate FLEX-10K FPGA, 240-PQFP | Intel / Altera
EPF10K100BQC240-3

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.

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EPF10K100EBC356-1 - 100K Gates FLEX 10KE FPGA | Intel
EPF10K100EBC356-1

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.

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EPF10K100EBC356-1N - FLEX 10KE FPGA 100K Gates 356-BGA | Altera
EPF10K100EBC356-1N

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.

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EPF10K100EBC356-1X - FLEX 10KE FPGA 100K Gates 356-BGA | Intel
EPF10K100EBC356-1X

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.

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EPF10K100EBC356-2 - 100K Gates FLEX 10KE FPGA 274 I/O BGA-356 | Intel
EPF10K100EBC356-2

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.

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EPF10K100EBC356-2X - FLEX 10KE FPGA 100K Gates 356-BGA | Altera
EPF10K100EBC356-2X

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.

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EPF10K100EBC356-3 - 100K Gates FLEX-10KE FPGA, 356-LBGA | Intel
EPF10K100EBC356-3

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.

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EPF10K100EFC256-2 - FLEX 10KE FPGA, 100K Gates, 256-BGA | Intel / Altera
EPF10K100EFC256-2

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.

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EPF10K100EFC256-2X - FLEX 10KE FPGA, 49,152 Gates, 256-BGA | Altera
EPF10K100EFC256-2X

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.

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EPF10K100EFC256-3 - 100K Gates FLEX 10KE FPGA, 256-BGA | Intel
EPF10K100EFC256-3

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.

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EPF10K100EFC256-3N - FLEX 10KE FPGA 100K Gates | Altera/Intel
EPF10K100EFC256-3N

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.

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EPF10K100EFC484-1 - FLEX 10KE FPGA 100K Gates 484-BGA | Intel
EPF10K100EFC484-1

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.

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EPF10K100EFC484-1N - 100K FLEX 10KE FPGA, 338 I/O, 484-BGA | Intel
EPF10K100EFC484-1N

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.

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EPF10K100EFC484-1X - FLEX-10KE FPGA 100K Gates 484-FBGA | Intel
EPF10K100EFC484-1X

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.

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