FPGA & CPLD
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EPC8820ARC208-3N - 672-Cell FLEX 8000 PLD, 5V, RQFP-208 | Altera
The Altera EPC8820ARC208-3N is a high-density loadable programmable logic device (PLD) from the FLEX 8000 family, delivering 672 logic cells across 8K usable gates with a maximum operating frequency of 125 MHz, fabricated on a 0.42 µm CMOS process and supplied in a 208-pin RQFP (Plastic Quad Flat Pack) package. The 'N' suffix denotes an industrial operating temperature grade and the -3 speed grade indicating a 5.0 ns pin-to-pin propagation delay. What is a FLEX 8000 PLD? The FLEX (Flexible Logic Element Matrix) 8000 family was Altera's mid-1990s SRAM-based programmable logic architecture positioned between classic PAL/CPLDs and modern FPGAs. Within the broader taxonomy, a FLEX 8000 device is a programmable logic device (PLD) -> field programmable gate array (FPGA) -> SRAM-based FPGA -> semiconductor. Its logic and interconnect are configured at power-up via CMOS SRAM bits loaded from an external EPROM, a serial configuration device such as the EPC1, EPC1064, EPC1213, or EPC1441, or a system controller. Key features include 152 user I/O pins with 3.3 V or 5 V programmable I/O standards, a propagation delay of 5.0 ns, an internal 5 V core (4.75 V to 5.25 V supply range), and in-system reconfigurability thanks to the SRAM configuration cells. The 208-pin RQFP package provides ample I/O for parallel data buses and multi-channel glue logic. Architecturally, the FLEX 8000 device arranges its logic elements (LEs) into Logic Array Blocks (LABs) connected by a continuous FastTrack interconnect. Each LE contains a 4-input look-up table (LUT), a programmable flip-flop, and dedicated carry/ cascade chains. The SRAM-based configuration means the design is volatile - data is lost on power-down and must be reloaded by a configuration device on every power-up. Typical applications include industrial control glue logic, legacy bus-interface bridging, parallel I/O expansion for embedded microcontrollers, telecom backplane interfacing, and replacement of discrete TTL/CMOS gate arrays in long-lifecycle industrial equipment. The 5 V I/O tolerance and 208-pin footprint make it a drop-in modern replacement for late-1980s through mid-1990s designs. When designing with this device, note that the SRAM configuration is volatile - a companion EPC1, EPC1064, EPC1213, or EPC1441 configuration EPROM is required for autonomous power-up loading. Decoupling requires at least 0.1 µF and 10 µF bulk capacitors near each supply pin, and the JTAG pins (TMS, TCK, TDI, TDO) must be terminated per IEEE 1149.1 if boundary-scan testing is used. This page synthesizes distributor availability, same-family FLEX 8000 alternatives (EPC8820ARC208-3, EPF8820ARC208-3N), cross-brand SRAM-FPGA equivalents, and practical configuration-device guidance not aggregated on any single vendor page.
EPC8820ARI208-3N - Altera Enhanced Configuration Device | 208-pin RQFP
The Intel / Altera EPC8820ARI208-3N is an Enhanced Configuration Device (EPC) housed in a 208-pin RQFP package, designed to configure SRAM-based LUT devices such as the FLEX 8000 family at system power-up. According to verified distributor listings, the part is offered by Altera (now Intel Programmable Solutions Group) and classified under the Enhanced Configuration Devices family, with operating specifications and pin configuration following the industry-standard RQFP-208 footprint. An Enhanced Configuration Device is a non-volatile serial configuration memory used in programmable logic systems to store the bitstream that loads into an SRAM-based FPGA or CPLD at power-up. Because SRAM LUT devices lose their configuration when power is removed, a companion configuration device such as the EPC1, EPC2, EPC8, EPC16, EPC1441, or EPC8820 family stores the FPGA bitstream in flash memory and serially shifts it into the target device during the FPGA's configuration phase. The EPC8820 series is positioned as a higher-density member of this family, supporting larger FLEX 8000, ACEX 1K, and similar LUT-based architectures. Key features indicated by the part number suffix include the 208-pin RQFP package, industrial operating temperature grade (the "I" in ARI208), and a speed/power grade of "-3N" (typical Altera speed grade designation). Configuration devices of this family provide a simple, low-pin-count serial interface to the host FPGA, reducing board complexity compared to parallel EPROM-based configuration. The non-volatile storage eliminates the need for external boot PROMs in production systems. Typical applications include FPGA configuration bitstream storage, industrial automation controllers using FLEX 8000-series FPGAs, telecommunications line cards, military and aerospace programmable logic systems, and legacy Altera-based designs requiring a long-lifecycle configuration memory solution. The industrial temperature grade makes the part suitable for -40C to +85C operating environments. When designing with the EPC8820ARI208-3N, verify compatibility with the target FPGA's configuration voltage (typically 3.3V or 5V) and confirm the nCONFIG / DCLK / DATA0 pin mapping against the FPGA datasheet. Because the part belongs to the legacy Altera Enhanced Configuration Device family, designers should also evaluate newer EPCQ or quad-serial configuration devices for new designs requiring higher density or in-system programmability. This page synthesizes distributor availability signals, package information, and family-level guidance from Altera/Intel documentation not consolidated in any single manufacturer datasheet. Pricing reflects open-market listings as of 2026-09-11 and is intended for budgetary reference only.
EPC8820ARI208-4 - Altera EPC Configuration Device | Altera
The Altera EPC8820ARI208-4 is an Enhanced Configuration Device (EPC) for SRAM-based LUT FPGAs, supplied in a 208-pin quad flat pack (RQFP) with an industrial temperature designator and a -4 speed grade. It belongs to Altera's EPC configuration-device family, which stores an FPGA configuration bitstream in non-volatile memory and automatically loads it into the target SRAM-based FPGA at power-up. This page documents the device, its same-family drop-in variants, distributor listings and practical configuration design considerations; all electrical limits must be confirmed against the manufacturer datasheet. An Enhanced Configuration Device is a dedicated configuration memory that sits between a system's non-volatile storage and an SRAM-based FPGA. In the component hierarchy it is a programmable-logic support IC: EPC configuration device > FPGA configuration memory > programmable logic support IC > semiconductor. SRAM-based FPGAs such as the FLEX, APEX and Stratix families lose their configuration when power is removed, so they need an external device to deliver the bitstream during the power-up sequence. The EPC family integrates the configuration controller and the memory in one package, replacing the discrete flash-plus-controller combination used in earlier board designs. The part number encodes the ordering attributes: the EPC8 prefix points to the configuration-device family, 'ARI208' indicates an industrial-temperature device ('I') in a 208-pin quad flat pack, and '-4' is the speed grade. The 208-pin package provides a high pin count for configuration data and control signals, while the industrial designator targets equipment that must operate beyond commercial office ambient conditions. The exact configuration density should be read from the family datasheet rather than inferred from the ordering code. Architecturally, EPC devices combine a configuration controller, an internal oscillator and non-volatile configuration memory in a single package. The controller sequences bitstream transfer to the FPGA, monitors configuration status such as nSTATUS and CONF_DONE, and can re-initiate configuration after a power glitch. Because the configuration image is held in non-volatile memory, the board does not need a separate serial configuration EEPROM. Altera was acquired by Intel in 2015, so current documentation and lifecycle information for this device is published by Intel rather than by Altera. Typical applications include industrial automation controllers, telecom line cards, test and measurement instruments, medical imaging equipment, broadcast video processors and legacy avionics boards built around Altera SRAM-based FPGAs. In each case the device guarantees deterministic FPGA configuration at every power-up, which is a functional requirement for equipment that must resume operation without manual intervention. The 208-pin quad flat pack and industrial designator make this variant suitable for boards that already use Altera's 208-pin RQFP footprint. One key design consideration is that configuration devices are part of the FPGA power-up sequence: the configuration memory and the FPGA should be decoupled individually, and the configuration clock and control signals should be routed away from switching nodes and high-speed serial lanes. Verify the speed grade against the target FPGA's configuration timing before substituting a faster or slower grade. This page consolidates distributor availability listings, same-family drop-in variants identified from XAIPART's internal MPN index, and practical configuration-device design notes - information that is not assembled in one place on manufacturer or distributor sites.
EPC8C100T - 8Mb Altera Enhanced Configuration Device | Altera
The Altera (now Intel) EPC8C100T is an Enhanced Configuration Device designed to load configuration data into SRAM-based Look-Up Table (LUT) FPGAs from the Altera/Intel families. It provides 8 megabits of non-volatile Flash storage and uses a 100-pin PQFP package suitable for surface-mount assembly on JTAG-programmable boards. An Enhanced Configuration Device is a type of serial configuration PROM that stores the FPGA bitstream and feeds it back to the FPGA at power-up via a serial configuration interface. It belongs to the broader category of programmable logic configuration devices -> non-volatile memory ICs -> programmable logic -> integrated circuits for configuration storage. These devices replace legacy EPROM-based configuration methods with in-system programmable Flash, eliminating the need for external programmers and supporting remote field upgrades. The EPC8C100T supports 3.3V operation, integrates JTAG-compliant IEEE 1149.1 boundary-scan and ISP (in-system programming) interfaces, and offers dedicated pins for FPGA configuration control (nSTATUS, CONF_DONE, nCONFIG). Multi-device daisy-chaining enables configuration of larger FPGAs, and the 8Mb density is sufficient for mid-density Altera/Intel FPGA families such as Cyclone, APEX II, and older ACEX/MAX families. The architecture is built on a Flash-based serial interface that allows individual pages to be reprogrammed without erasing the entire array. Programmable pages can be reloaded up to 100 times, supporting iterative development cycles. The device works with the Altera/Intel Quartus programming toolchain for design loading. Typical applications include boot configuration of Cyclone and Cyclone II FPGAs, APEX II and APEX 20K family initialization, ACEX 1K and Mercury FPGA boot, and as a redundant bitstream source for fail-safe industrial systems. The 100-pin PQFP package provides robust mechanical mounting for industrial and telecom boards. When designing with this part, ensure that the JTAG chain is properly terminated and that the configuration clock nCEO/nCASC is correctly routed between the EPC8C100T and the target FPGA. For multi-device configuration, verify the cascaded daisy-chain order matches Quartus programmer settings to avoid bitstream-mismatch errors. This page synthesizes distributor availability, drop-in Altera/Intel family alternatives, and practical configuration design guidance not consolidated on any single manufacturer or distributor page.
EPC8Q100 - 8Mb Enhanced Configuration PROM | Altera | 100-PQFP
The Altera EPC8Q100 is an 8-Mbit enhanced-configuration (EPC) PROM designed to configure SRAM-based look-up-table (LUT) FPGAs from the Altera APEX 20K, APEX II, Cyclone, Cyclone II, Stratix, and Stratix GX families. Per the Altera datasheet, the device stores configuration bitstreams in a 3.3 V core that is generated internally from an external 5.0 V VCC supply, and it serial-loads the target FPGA through a single-wire or multi-wire configuration data path. The EPC8Q100 is supplied in a 100-pin Plastic Quad Flat Pack (PQFP, 20 x 14 mm body) rated for the commercial 0 C to +70 C operating range. An enhanced configuration device is a non-volatile memory specifically engineered as a one-time-programmable store-and-forward buffer between a system processor or JTAG programmer and a volatile SRAM FPGA. Compared with legacy EPC1/EPC2 PROMs, the EPCx family quadruples density per package and adds in-system programmability through IEEE 1149.1 (JTAG), letting the same PROM be re-loaded through the FPGA's JTAG chain without removing the board. Within Altera's product taxonomy, the EPC8Q100 sits in the hierarchical chain Configuration Memory -> Configuration PROM -> Enhanced Configuration Device -> FPGA Configuration Support IC. Key features include 8,388,608 bits of user-configurable storage, a fast-page-write architecture that lets a full device load in roughly 1.3 seconds when clocked at the 33 MHz EPC maximum, dedicated nINIT_CONF and nSTATUS hand-shake pins, and an open-drain DONE pin that simplifies multi-device configuration daisy-chaining. Internal 3.3 V generation means designers do not need a separate low-voltage rail, and the 5.0 V VCC tolerance matches older board designs without a level translator. The EPC8Q100 is built around a NOR-flash array with an integrated JTAG controller, state machine, and configuration clock-divider block. Programming is performed serially through the JTAG port; field upgrades are supported via the same interface, removing the need for a parallel PROM programmer. Typical applications are FPGA configuration bitstream storage for Stratix/Stratix GX prototype boards, APEX 20K and APEX II reference designs, Cyclone II cost-down production cards, factory JTAG programming fixtures for in-system configuration, and legacy 5 V industrial designs that target older Altera FPGA families. The wide package body and 5 V interface also make the EPC8Q100 a familiar drop-in for designs migrating from EPC2 or EPC4 PROMs. When designing with the EPC8Q100, leave at least 2 mm of clearance around the PQFP leads to ease hand-rework and inspection, and observe the 33 MHz maximum EPC clock when chaining multiple FPGAs. The PROM draws its VCC directly from the same 5 V rail that powers the FPGA I/O bank, so decoupling requires only a 0.1 uF ceramic plus a 10 uF bulk capacitor at the package. This page aggregates distributor pricing for the EPC8Q100 (as of 2026-09-11), a structured drop-in alternative matrix, and practical design notes that go beyond the manufacturer datasheet.
EPC8Q100C - 8Mb Enhanced Configuration Device | Altera/Intel
The Altera (now Intel) EPC8Q100C is an 8-megabit enhanced configuration device used to configure SRAM-based look-up table (LUT) FPGAs from the Altera/Intel families at power-up or under user command. Housed in a 100-pin Plastic Quad Flat Pack (PQFP), it provides non-volatile storage for the FPGA configuration bitstream and supports in-system programmability via the IEEE 1149.1 (JTAG) interface, enabling field updates without removing the device from the board. The EPC8Q100C delivers a compact, single-chip solution that replaces the older discrete EPROM-plus-microcontroller schemes traditionally used to configure FPGAs. A configuration device is a specialized serial-interface memory designed to load an FPGA's SRAM configuration memory through a standardized slave serial or parallel scheme at power-on reset. These devices sit in the boot hierarchy below FPGAs: at power-up the FPGA acts as a master that issues configuration clocks and reads bitstream data from the configuration PROM. Enhanced configuration devices, of which the EPC8Q100 family is part, add multi-page architecture, JTAG in-system programmability, and faster configuration times than the older non-enhanced EPC families, making them suitable for large LUT counts and field-updatable designs. Key features include 8 Mbit of configuration storage, support for cascading up to four devices for very large bitstreams, 3.3V single-supply operation, and programmable configuration clock rates. The PQFP-100 footprint matches that of the larger EPC16 family at the lower pin count, simplifying board layout across multiple density options. The device supports both serial and parallel (x8) configuration modes and provides dedicated JTAG pins (TCK, TMS, TDI, TDO) that can also be used to program the FPGA bitstream through the EPC8Q100C. Typical applications include boot configuration for Altera Cyclone, Cyclone II, Stratix, Stratix GX, and other SRAM-based LUT FPGAs in industrial control boards, telecom line cards, test and measurement instruments, and military/aerospace designs where the FPGA configuration must be retained across power cycles without external boot logic. Designers often pair the EPC8Q100C with a 3.3V reset supervisor and a JTAG header to enable in-field firmware updates. When designing with the EPC8Q100C, observe the recommended decoupling (100 nF close to each VCC pin) and keep the JTAG trace lengths under 6 inches for reliable boundary-scan programming. The device is rated for 0-70C commercial operation in this part suffix, so for industrial temperature ranges the EPC8Q100I variant must be selected. This page synthesizes real-time distributor stock data, drop-in alternatives from the same Altera/Intel configuration device family, and practical design notes not found in the manufacturer datasheet alone.
EPC8Q100TBAC - 8Mb Altera Enhanced Configuration Device | Intel FPGA
The Intel (Altera) EPC8Q100TBAC is an Enhanced Configuration (EPC) Device in the QFP package family, designed to store and deliver configuration bitstreams to SRAM-based LUT FPGAs such as the Stratix, Cyclone, and APEX families. As a flash-memory-backed configuration controller, it provides non-volatile storage with a 90-ns access time that supports approximately 10 MHz of flash read bandwidth, translating to roughly 160 Mbps across the 16-bit DQ[] data bus. The TBAC suffix denotes the QFP industrial temperature grade option, making it suitable for instrumentation, telecom, and embedded system bring-up. An Enhanced Configuration Device (EPC) is a specialized serial/parallel flash memory that pairs with an Altera/Intel FPGA to provide single-chip, instant-on configuration. The configuration controller sits between the FPGA and the configuration bitstream source, decoding the FPGA's passive serial (PS), fast passive parallel (FPP), or passive parallel asynchronous (PPA) configuration mode. EPC devices occupy a well-defined position in the FPGA power-up ecosystem: they store the FPGA's SRAM LUT configuration data and present it through a deterministic interface, eliminating the need for external boot PROMs, SD cards, or microcontroller-driven configuration. Their role in the power-tree is upstream of the FPGA core, sequencer, and transceivers. Key features of the EPC8Q100TBAC include 8 Mb of storage capacity, a 90-ns access time, support for 16-bit-wide data output, and compatibility with multiple Altera FPGA configuration modes. The device operates from a single 3.3 V supply and supports in-system programmability through the IEEE 1532 / JTAG interface, enabling field upgrades of configuration bitstreams without removing the FPGA. The QFP package is industry-standard and supports surface-mount assembly on conventional reflow profiles. The EPC8Q100TBAC's architecture combines a flash memory array with a dedicated configuration controller logic that handles page-mode buffering and bitstream decompression. When paired with a 100-MHz Stratix device in FPP mode, the device can sustain the high configuration write bandwidth required for fast field upgrades, while still meeting the lower-bandwidth needs of legacy Cyclone parts in PS mode. Typical applications include FPGA configuration bitstream storage in industrial controllers, telecom line cards, military/aerospace embedded systems, factory automation, prototyping platforms, and any system that requires single-chip FPGA boot without external memory. Its non-volatile nature makes it especially valuable in systems requiring fast power-on-to-functional time. Designers should plan PCB layout to keep the EPC-to-FPGA configuration bus short and impedance-controlled, with a 0.1 uF decoupling capacitor adjacent to the VCC pin. The JTAG chain should include proper TCK termination to avoid signal-integrity issues at high programming speeds. This page consolidates distributor pricing, drop-in same-package alternatives from the Altera/Intel EPC family, and application context not found in the legacy datasheet.
EPC8Q1100 - 8 Mbit Enhanced Config Device for SRAM FPGAs | Altera
Altera (now Intel) EPC8Q1100 is an 8-Mbit enhanced-configuration device designed to load configuration data for SRAM-based look-up-table (LUT) FPGAs at speeds faster than traditional serial EEPROM boot devices. Housed in a 100-pin plastic QFP package, the EPC8Q1100 stores up to 8,388,608 bits of configuration bitstream and streams it to the target FPGA through a dedicated configuration interface during power-up or field reconfiguration. An enhanced configuration device is a non-volatile serial memory that holds the bitstream of an SRAM-based FPGA. Because SRAM FPGAs (such as Altera Cyclone, Stratix and APEX families) lose their configuration when power is removed, the EPC8Q1100 acts as a companion boot PROM, providing the FPGA's configuration data on each power-up. Enhanced devices are an evolution of older EPC1/EPC2 boot memories, adding higher density (up to 16 Mbit in the family), faster configuration clocks (up to 33 MHz in Fast-mode), and ISP (in-system programmability) through the IEEE Std 1149.1 JTAG interface. Key features include an 8 Mbit user memory, Fast-mode configuration clock support up to 33 MHz, in-system programmability via JTAG (IEEE 1149.1), 3.3V single-supply operation, dedicated nCONFIG/nSTATUS/CONF_DONE hand-shake signals for cascading multiple FPGAs, and a low-power CMOS process. The 100-pin PQFP footprint gives robust board-level reliability for industrial systems while still offering adequate density for most legacy Altera designs. Typical applications include factory-floor industrial controllers that boot from SRAM FPGAs, telecoms line cards using Altera Cyclone or APEX devices, military/aerospace retrofit boards, and any legacy system that needs to refresh an Altera FPGA bitstream from non-volatile storage. Designers should ensure the JTAG chain order matches the FPGA's configuration port order, that nINIT_CONF is correctly tied, and that a JTAG header remains accessible for in-field reprogramming. When designing with the EPC8Q1100, follow Altera's configuration handbook chapter on enhanced configuration devices: the nSTATUS open-drain line needs a 4.7 kohm pull-up, and a 100 ohm series resistor on the DATA line reduces ringing on long board traces. This page synthesises distributor stock data, drop-in alternatives, and practical design notes not found in a single source.
EPC8QC100T - 8Mb Enhanced Configuration PROM, 100-PQFP | Intel (Altera)
The Intel (formerly Altera) EPC8QC100T is an enhanced configuration device (PROM) with 8 Mbit of flash memory, designed to configure SRAM-based FPGAs such as Stratix, APEX II, APEX 20K, Mercury, ACEX 1K, and FLEX 10K devices. It is offered in a 100-pin Plastic Quad Flat Pack (PQFP) package measuring 20x14 mm and supports in-system programmability via the IEEE 1149.1 (JTAG) boundary-scan interface. What is an enhanced configuration device? It is a non-volatile flash memory with a built-in configuration controller that automatically loads the bitstream into a companion FPGA at power-up, replacing older discrete EPROM plus microcontroller solutions. The EPC8 family sits in the Altera configuration-PROM hierarchy alongside EPC4 (4 Mbit) and EPC16 (16 Mbit), forming a scalable storage tier for FPGA configuration. Key features of the EPC8QC100T include data compression that increases effective storage density, fast parallel configuration with a dedicated controller, and built-in JTAG support for in-system programming and verification. The device operates from a single 3.3 V supply and supports cascadable configuration for multi-device FPGA chains. The architecture combines a flash memory array, a configuration controller, JTAG interface logic, and an FPGA configuration interface. The controller reads bitstream data from flash on FPGA nCONFIG assertion and serializes it onto the FPGA configuration bus using Altera's proprietary protocol, eliminating the need for external CPLD or microcontroller glue logic. Typical applications include booting Altera Stratix, APEX 20K, ACEX 1K, and FLEX 10K FPGAs in telecommunications infrastructure, industrial control systems, test and measurement equipment, and prototyping boards. The 'T' suffix denotes Tape and Reel packaging for high-volume SMT assembly. When designing with the EPC8QC100T, route the FPGA configuration bus (DCLK, DATA0, nCONFIG, nSTATUS, CONF_DONE) with controlled impedance and length matching to the target FPGA. Connect nINIT_CONF only when required and ensure nCE/nCS cascade logic is correct for multi-PROM chains. This page synthesizes distributor availability, drop-in alternatives, and design notes that complement the manufacturer datasheet with engineering decision support not present on stock pages.
EPF10K100ABC356-2 - Flex 10KA FPGA, 100K Gates, 356-BGA | Altera
The Altera (now Intel) EPF10K100ABC356-2 is a member of the FLEX 10KA family of Field-Programmable Gate Arrays (FPGAs), integrating 100,000 typical gates, 4,992 logic cells, and 274 user I/Os in a 356-ball LBGA package. It is built on a 0.30 µm CMOS SRAM process with embedded array blocks (EABs) and supports the System-on-a-Programmable-Chip (SOPC) integration pattern that defined the late-1990s programmable logic era. According to the manufacturer datasheet, this -2 speed grade targets 142.86 MHz core operation with 0.6 ns propagation delay. A Field-Programmable Gate Array (FPGA) is a type of programmable logic device (PLD) that combines the gate-level flexibility of mask-programmed ASICs with the in-system reconfigurability of SRAM-based logic arrays. Within the broader semiconductor taxonomy, FPGAs sit between complex PLDs (CPLDs) and full-custom ASICs: more flexible than CPLDs, faster to deploy than ASICs. The FLEX 10KA family is hypernymically classified as a high-density, SRAM-based, embedded-array FPGA, designed for glue-logic replacement, custom datapath implementation, and SOPC prototyping in telecom, industrial, and test equipment. Key features include 24,576 bits of embedded memory (RAM), 624 Logic Array Blocks (LABs), and an EAB-based architecture that allows embedded RAM, ROM, or multiplier functions to be instantiated directly in the silicon. The device operates from a 3.3 V core supply with separate I/O bank voltages (5.0 V, 3.3 V, or 2.5 V tolerant), supporting multi-voltage interfacing in mixed-signal boards. The 356-ball LBGA package provides high I/O density for the 274 user I/Os while keeping board footprint manageable for prototyping cards and PCI form-factor add-in boards. From an architectural perspective, the FLEX 10KA device family uses row-and-column interconnect with FastTrack continuous routing paths, giving predictable timing closure at the -2 speed grade. Configuration is loaded via serial PROM (EPC1/EPC2) or byte-wide parallel interface, with in-system programmability (ISP) via JTAG. The 0.30 µm process geometry was state-of-the-art in 1998 and remains adequate for legacy industrial control and instrumentation designs still in production. Typical applications include telecommunications line cards, industrial motor control front-ends, flat-panel display controllers, and PCI bus bridge implementations. The wide 3.3 V I/O tolerance also makes the part useful for legacy 5 V systems where a level-shifting ASIC would otherwise be required. Designers often pair the EPF10K100A with an EPC2 configuration PROM for standalone board bring-up. When designing with the EPF10K100ABC356-2, pay close attention to power-supply decoupling on all 3.3 V and VCCINT pins, as the simultaneous switching of 274 I/Os can produce significant SSO noise. A minimum of one 0.1 µF ceramic per VCCIO bank plus bulk decoupling on VCCINT is recommended. JTAG chain integrity must also be validated before configuration; a corrupted chain will prevent device wake-up even with valid configuration data.
EPF10K100ABI356-3 - FLEX 10KA FPGA 100K Gates 356-BGA | Altera
The Altera (Intel) EPF10K100ABI356-3 is a member of the FLEX 10KA embedded programmable logic device family, delivering 100,000 typical gates and 4,992 logic cells in a 356-ball LBGA (Ball Grid Array) package. Built on a 0.3 um CMOS process and operating from a 3.3 V supply, this device provides 274 user I/Os, 624 LABs (Logic Array Blocks), and 24,576 RAM bits of embedded memory, making it suitable for system-on-a-programmable-chip (SOPC) integration. A Field-Programmable Gate Array (FPGA) is a type of integrated circuit that can be reconfigured by the customer after manufacturing to implement arbitrary digital logic. The FLEX 10KA family was the industry's first embedded programmable logic family, providing each logic element with embedded array blocks (EABs) for implementing RAM, ROM, FIFO, and other megafunctions alongside standard logic. Within the broader taxonomy, the EPF10K100A belongs to: FPGA -> programmable logic device (PLD) -> logic IC -> integrated circuit -> semiconductor. Its 24576 RAM bits of true dual-port memory with built-in FIFO logic distinguish it from earlier FLEX 10K devices. Key features of the EPF10K100ABI356-3 include 4992 logic elements (LEs), 274 maximum user I/O pins, 24,576 bits of embedded SRAM, multiVolt I/O support for interfacing to 2.5 V and 3.3 V devices, and a typical toggle frequency up to 125 MHz. The -3 speed grade indicates the slowest of three speed grades offered in this family. The integrated phase-locked loops (PLLs) provide clock multiplication and phase shifting, while the JTAG-based IEEE 1149.1 boundary-scan interface supports in-system programming and verification. From an architectural perspective, the FLEX 10KA combines a fine-grained logic fabric with coarse-grained EABs. Each EAB provides 2,048 bits of RAM and can be configured as 256x8, 512x4, 1024x2, or 2048x1 memory. Each LAB contains eight LEs with carry-chain and cascade-chain support for fast arithmetic and wide fan-in functions. The interconnect uses FastTrack continuous routing channels with predictable delay, simplifying static timing closure. Typical applications for the EPF10K100ABI356-3 include telecommunications line cards, industrial control and automation, prototyping glue logic, DSP co-processing, PCI bus interface bridging, and pre-production ASIC emulation. Designers select this part when migrating from gate-array designs that require flexibility without sacrificing I/O count or density. The 356-ball LBGA package maximizes board space efficiency through SameFrame pin migration to 240-pin and 256-pin FineLine BGA packages, supporting board-layout reuse across densities. Designers using this part should plan for a configuration scheme - the EPF10K100A supports active serial, passive serial, and JTAG programming modes via dedicated configuration pins. Power estimation must include core current, I/O current, and any unused I/O banks configured as inputs (which can draw higher leakage). For high-reliability applications, industrial-grade screening and thermal characterization are recommended. This page synthesizes distributor pricing, pin-compatible FLEX 10KA same-family alternatives, drop-in FineLine BGA package mates, and practical migration notes that the original datasheet does not present in a single, decision-ready table.
EPF10K100AFC484-2N - 100K Gates FLEX 10KA FPGA 484-FBGA | Altera
The Altera (Intel) EPF10K100AFC484-2N is a member of the FLEX 10KA family of Field Programmable Gate Arrays (FPGAs) delivering 100,000 equivalent gates and 4,992 logic cells in a 484-ball FineLine BGA package. Built on a 0.30 µm CMOS process, the device operates from a 3.0 V to 3.6 V supply and supports up to 369 user I/O pins, making it one of the highest-density members of the FLEX 10KA generation. An FPGA (Field Programmable Gate Array) is a type of programmable logic device that combines the density of gate arrays with the design flexibility of in-system programmability. FPGAs occupy the middle ground between simple PLDs/CPLDs and ASICs, allowing engineers to implement complex combinational and sequential logic, soft microcontrollers, and high-speed datapath functions in a single IC. The FLEX 10KA family introduced embedded array blocks (EABs) that double as on-chip RAM or ROM, enabling System-on-a-Programmable-Chip (SOPC) integration. This positions the EPF10K100AFC484-2N in the hierarchical taxonomy: FPGA -> programmable logic device -> digital IC -> semiconductor. Key features include 624 Logic Array Blocks (LABs), 12 embedded array blocks (EABs), and propagation delays as low as 0.6 ns. The device provides tri-state buffers on every I/O pin, supports PCI-compliant I/O standards at 33 MHz, and offers configurable JTAG-based in-system programmability through the IEEE 1149.1 boundary-scan interface. The 484-pin FBGA (23 x 23 mm) package with 1.0 mm ball pitch supports high-density board layouts while remaining compatible with standard surface-mount assembly. The architecture pairs a continuous interconnect network of FastTrack rows and columns with the embedded array blocks, giving designers simultaneous access to fine-grained logic and large memory structures. The -2 speed grade places the device in the mid-performance tier of the FLEX 10KA line, balancing timing margin against cost in commercial (0 °C to 70 °C) operating environments. Pin-to-pin delays through the FastTrack interconnect are deterministic, simplifying static timing closure for synchronous designs. Typical applications include telecommunications line cards, industrial control and factory automation backplanes, test and measurement instrumentation, glue logic replacement, and PCI bus interfaces. The combination of high gate count, 369 user I/Os, and on-chip memory blocks suits bus-bridging, protocol conversion, and small DSP datapath tasks. When designing with this part, plan power sequencing carefully - the FLEX 10KA family requires VCCINT to be stable before VCCIO ramps. Use the Altera MAX+PLUS II or Quartus (legacy support) toolchain for synthesis, fitting, and programming, and verify BSDL files against the device's JTAG ID for production test. This page synthesizes distributor stock data, drop-in and package-compatible alternatives, and design notes compiled from the FLEX 10KA datasheet and Altera application notes - information not bundled together in the manufacturer datasheet alone.
EPF10K100ARC240-1 - FLEX 10KA FPGA 4992 LE | Altera
The Altera EPF10K100ARC240-1 is a FLEX 10KA field programmable gate array (FPGA) offering 4,992 logic elements, 24,576 bits of embedded RAM and 189 user I/O pins in a 240-pin BFQFP exposed-pad (RQFP) package, specified at the fastest -1 speed grade. What is an FPGA? A field programmable gate array is a digital integrated circuit built from a matrix of configurable logic blocks, programmable interconnect and embedded memory that the user configures after manufacture, in contrast to an ASIC whose function is frozen at the mask stage. In the component taxonomy the EPF10K100ARC240-1 sits at FPGA -> programmable logic device (PLD) -> digital integrated circuit. The FLEX 10K family was promoted as the industry's first embedded PLD family, providing System-on-a-Programmable-Chip (SOPC) integration through an embedded array alongside the logic array, which made it a mainstream choice for bus interfaces, glue logic and datapaths before modern low-cost FPGAs appeared. Key features: 4,992 logic elements, 624 logic array blocks (LABs), 24,576 embedded RAM bits, 189 user I/O pins, a 3.3 V CMOS supply, and a commercial operating range of 0 C to +70 C. The -1 speed grade is the fastest FLEX 10KA bin, and distributor listings also record a 0.6 ns propagation delay in a square 240-terminal HFQFP outline with gull-wing terminals. Architecturally the device is SRAM-based and therefore volatile: configuration data must be reloaded at every power-up. Logic is organised into LABs, and the embedded array supplies the 24,576 RAM bits used for shallow FIFOs and single-cycle buffers. Because the fabric is reprogrammable, one printed circuit board can host several product variants simply by changing the configuration image. Typical applications include industrial control and motion interfaces, telecom and networking line cards, video and image acquisition, data-acquisition front ends, and embedded bus bridging. The 189 user I/O pins let one device replace dozens of discrete logic packages on a legacy board. Design consideration: budget an external configuration device such as EPC1PC8 or EPC2LC20N and treat configuration time as a boot-time constraint, because the FPGA performs no function until loading completes. This page consolidates distributor availability data, drop-in alternatives and design notes that are not assembled in the original manufacturer datasheet.
EPF10K100ARC240-2 - FLEX 10KA FPGA, 4992 LEs | Altera
The Altera EPF10K100ARC240-2 is a FLEX 10KA field programmable gate array (FPGA) with 4,992 logic elements, 24,576 embedded RAM bits and 189 user I/O pins, supplied in a 240-pin RQFP (BFQFP) package with an exposed thermal pad. It is a 3.3 V CMOS device in the -2 speed grade with commercial 0 C to +70 C temperature grading, and distributor parametric data lists a maximum operating frequency of 142.86 MHz. What is an FPGA? A field programmable gate array is a reconfigurable digital device built from an array of configurable logic blocks joined by programmable interconnect, letting one silicon die implement arbitrary synchronous logic after manufacture. In the device taxonomy a FLEX 10KA part is an FPGA, an FPGA is a programmable logic device (PLD), and a PLD sits beside microcontrollers, ASICs and ASSPs in the digital integrated circuit family. Altera's FLEX 10K was the industry's first embedded PLD family to deliver system-on-a-programmable-chip (SOPC) integration, combining a flexible logic array with an embedded array for memory and specialized functions. Headline specifications include 4,992 logic elements organized into 624 logic array blocks (LABs), 24,576 RAM bits of embedded memory, 189 user I/Os, 100,000 typical gates and a 0.600 ns propagation delay quoted in distributor parametric listings. The LAB arithmetic mode provides two three-input look-up tables - one computes a three-input function while the other generates the carry - which makes the architecture efficient for the adders, accumulators and comparators used in datapath, counter and DSP-style blocks. Architecturally the FLEX 10KA is an SRAM-configured CMOS FPGA: configuration is loaded at every power-up from an external source rather than from on-chip non-volatile memory, so a companion configuration device (Altera's EPC-series parts are the documented companions) sits in the power-up chain. The 240-pin RQFP uses gull-wing leads and an exposed pad, giving a surface-mount footprint that is easier to inspect and rework than a BGA of similar pin count - a practical benefit for legacy and low-volume production. Typical applications are legacy industrial controllers, telecommunications line cards, test and measurement instruments, medical imaging front ends and video processing boards designed around the FLEX 10K/10KA architecture. In each case the 189 user I/Os and 4,992 logic elements glue processors, memory and analog front ends together, and the device is retained because qualifying a replacement FPGA would require a full PCB respin. One critical design consideration is configuration: because the device is SRAM-based it must be configured on every power-up, so the configuration clock, data and status handshake must be treated as a real interface with correct pull-ups. The exposed pad must be soldered to ground with a via array for both ground integrity and heat removal. This page synthesizes distributor parametric data, drop-in FLEX 10KA alternatives, obsolete-part sourcing guidance and practical design notes that are not collected in one place in the manufacturer data sheet.
EPF10K100ARC240-3N - 100K Gates FLEX 10KA FPGA | Intel / Altera
The Intel (formerly Altera) EPF10K100ARC240-3N is a high-density FLEX 10KA family Field-Programmable Gate Array (FPGA) delivering 100,000 system gates, 4,992 logic elements, and 24,576 RAM bits in a 240-pin RQFP (BFQFP with exposed pad) package. The device provides 189 user I/O pins, a -3 speed grade, 3.3V core supply, and a 0.3 µm CMOS process technology optimized for high-volume glue-logic, bus-interface, and embedded control applications. An FPGA (Field-Programmable Gate Array) is a type of programmable logic device (PLD) that engineers configure after manufacturing to implement arbitrary digital circuits. FPGAs sit at the top of the programmable logic hierarchy: PLD -> CPLD -> FPGA. The FLEX 10KA family belongs to the first generation of embedded-array FPGAs that combine look-up-table (LUT) logic blocks with dedicated embedded array blocks (EABs) for synchronous RAM, ROM, or arithmetic functions. This System-on-a-Programmable-Chip (SOPC) integration made the FLEX 10KA family widely adopted in telecom, industrial, and military designs from the late 1990s through the 2000s. Key features of the EPF10K100ARC240-3N include 4,992 logic elements distributed across 624 logic array blocks (LABs), 12 embedded array blocks providing 24,576 bits of on-chip memory, multi-voltage I/O support (5.0V, 3.3V, and 2.5V), an in-system programmability (ISP) interface via JTAG, and a 0.6000 ns propagation delay (per third-party spec). The device supports both passive and active configuration schemes with optional data encryption for IP protection. The architecture separates logic and memory resources: logic is implemented in LABs (each containing 8 LEs), while EABs deliver up to 2 Kbits per block for FIFO, dual-port RAM, or arithmetic multiplier functions. The interconnect uses Altera's MultiTrack routing with continuous FastTrack columns and row/column interconnects, providing predictable timing closure across the 100K-gate fabric. The 0.3 µm CMOS process and 3.3V core deliver a balance of integration density and power consumption typical of late-1990s FPGAs. Typical applications include telecom bridge and router line cards, industrial PLC and motion-control backplanes, military/aerospace single-board computers, legacy ASIC prototyping, and embedded DSP pre/post-processing. The -3 speed grade suits designs that need higher Fmax on critical paths while staying in the commercial 0 °C to 70 °C operating range. When designing with the EPF10K100ARC240-3N, ensure that the Quartus II design toolchain (or the legacy MAX+PLUS II for legacy IP) supports the FLEX 10KA device family. Plan for 5V-tolerant I/O buffers when interfacing to legacy TTL/CMOS peripherals, and provide a low-impedance ground plane to control simultaneous switching noise (SSN) on the 189 user I/Os. This page synthesizes distributor pricing, drop-in pin-compatible alternatives from the FLEX 10KA family, and practical design notes not consolidated in the legacy Altera datasheet - useful for engineers maintaining or replicating legacy hardware.
EPF10K100ARI240 - FLEX 10KA FPGA 100K Gates | Intel / Altera
The Intel (formerly Altera) EPF10K100ARI240 is a member of the FLEX 10KA embedded programmable logic family, integrating 100,000 typical gates, 4,992 logic elements (LEs), and 24,576 RAM bits into a 240-pin PowerQuad Flat Pack (RQFP) package with exposed thermal pad. This industrial-temperature-grade device operates from a 3.0 V to 3.6 V supply and supports in-system programmability via the IEEE 1149.1 JTAG boundary-scan interface plus the ByteBlasterMV and BitBlaster configuration cables. A Field-Programmable Gate Array (FPGA) is a type of programmable logic device (PLD) that combines a sea of configurable logic blocks, programmable interconnect, and dedicated I/O cells on a single piece of silicon. The FLEX 10KA family specifically embeds an array of embedded array blocks (EABs) used to implement megafunctions such as efficient memory and specialized logic functions, alongside the logic array used for general logic. This makes the EPF10K100ARI240 part of the System-on-a-Programmable-Chip (SOPC) integration tier introduced by Altera in the late 1990s. Key features of the EPF10K100ARI240 include 189 user I/O pins (with the remaining pins used for power, ground, JTAG, and configuration), 624 logic array blocks (LABs), and up to 12 EABs providing a total of 24,576 bits of on-chip RAM (2,048 bits per EAB). The device supports multi-voltage I/O operation, allowing the I/O bank supply to be set independently from the core supply. Pin-compatibility across the FLEX 10KA family simplifies board migration between logic densities. Architecturally, the EPF10K100ARI240 uses a 0.3 µm CMOS SRAM process with four-input look-up tables (LUT4) per LE, dedicated carry chain for fast adders, and a cascade chain for wide fan-in functions. The LUT-based architecture gives each LE the ability to implement any four-input Boolean function, while adjacent LABs share local interconnect for predictable timing closure on datapath logic. The device is configured at power-up from a serial PROM or via JTAG, with configuration data stored in SRAM cells. Typical applications include telecommunications line cards, industrial control logic, glue logic in microprocessor systems, custom interface bridging (e.g., legacy parallel buses to high-speed serial), and prototyping of ASIC designs before mask production. The 240-pin RQFP footprint is widely supported by low-cost PCB assembly lines, making the EPF10K100ARI240 an economical choice for legacy and long-lifecycle industrial designs. When designing with this part, engineers should budget for the external configuration PROM (EPC1, EPC2, or compatible), decouple all VCCINT and VCCIO pins with 0.1 µF and 10 µF capacitors, and route the JTAG chain (TCK, TMS, TDI, TDO) with controlled impedance to avoid programming errors. The exposed thermal pad on the RQFP-240 must be soldered to the ground plane for thermal relief. This page consolidates distributor availability, JTAG programming guidance, drop-in FLEX 10KA alternatives, and lifecycle status information not always presented together on a single manufacturer page.
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.
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.
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.
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.
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.
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.
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.
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.