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EPF10K30RC240-4N - FLEX 10K FPGA, 30K Gates, 240-RQFP | Intel / Altera
EPF10K30RC240-4N

EPF10K30RC240-4N - FLEX 10K FPGA, 30K Gates, 240-RQFP | Intel / Altera

The Intel (formerly Altera) EPF10K30RC240-4N is a member of the FLEX 10K embedded programmable logic device family, providing 30,000 typical gates, 1,728 logic elements, and 12,288 bits of embedded array memory in a 240-pin RQFP (Plastic Quad Flat Pack) package with exposed pad. The device operates from a 5V supply (4.75V min, 5.25V max) and is built on a 0.42 µm CMOS SRAM process, delivering up to 62.89 MHz internal performance with 189 user I/O pins. An FPGA (Field-Programmable Gate Array) is a semiconductor IC containing an array of configurable logic blocks (CLBs), programmable interconnect, and I/O cells that designers can customize after manufacturing to implement arbitrary digital logic. The FLEX 10K series introduced the industry's first embedded array block (EAB) architecture, allowing on-chip implementation of megafunctions such as efficient memory, FIFO buffers, and specialized DSP operations. This bridges the gap between pure logic FPGAs and ASICs, supporting system-on-a-programmable-chip (SOPC) integration. Key specifications of the EPF10K30RC240-4N include 216 logic array blocks (LABs), 189 user I/O pins, 12,288 RAM bits distributed across embedded array blocks, and a commercial operating temperature range of 0°C to 70°C. The device supports in-system programming via the IEEE 1149.1 JTAG interface and is configurable through Altera's Quartus II MAX+PLUS II development tools. The 240-RQFP package provides gull-wing leads suitable for standard surface-mount assembly processes. Typical applications include telecommunications infrastructure, industrial control systems, test equipment prototyping, and legacy system maintenance where the FLEX 10K architecture was widely deployed in the late 1990s and early 2000s. Its embedded array blocks efficiently implement memory-intensive functions such as FIFOs and dual-port memory without consuming general logic resources. When designing with this device, ensure your Quartus II tool version supports the FLEX 10K family and that JTAG programming access is provided on the PCB. Note that this part is in the legacy/last-time-buy lifecycle stage as the FLEX 10K family has been superseded by newer Cyclone and MAX families.

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EPF10K30RI208-4 - FLEX 10K FPGA 30K Gates 208-RQFP | Intel / Altera
EPF10K30RI208-4

EPF10K30RI208-4 - FLEX 10K FPGA 30K Gates 208-RQFP | Intel / Altera

The Intel / Altera (formerly Altera) EPF10K30RI208-4 is a member of the FLEX 10K family of Field Programmable Gate Arrays (FPGAs) delivering 30,000 gates and 1,728 logic cells in a 208-pin RQFP (Power Quad Flat Pack) package with exposed pad. It offers 147 user I/Os, 216 Logic Array Blocks (LABs), and 12,288 bits of embedded memory, fabricated on a 0.42 µm CMOS process and operating from a 5 V supply. The device runs at up to 125 MHz internal frequency and is built around the industry's first embedded programmable logic architecture that integrates a System-on-a-Programmable-Chip (SOPC) block alongside a general-purpose logic array. What is an FPGA? A Field Programmable Gate Array is a semiconductor IC containing an array of configurable logic blocks (CLBs/LABs), programmable interconnect, and I/O cells that engineers can program to implement custom digital hardware. FPGAs sit above microcontrollers and ASICs in the design complexity hierarchy, offering parallel hardware execution, deterministic timing, and re-programmability for prototyping, low-volume production, and compute acceleration. Key features of the EPF10K30RI208-4 include 30K equivalent gates, 1,728 logic cells, 12,288-bit embedded array block (EAB) memory, 147 user I/O pins, and a 0.6000 ns propagation delay per logic element. The embedded array blocks can be configured as RAM, ROM, or first-in first-out (FIFO) functions, eliminating the need for external memory in many glue-logic designs. The 5 V I/O standard simplifies interface with legacy TTL/CMOS peripherals. The FLEX 10K architecture combines fine-grained logic elements (Logic Elements / LEs) with coarse-grained embedded array blocks (EABs). The Look-Up Table (LUT)-based logic elements implement combinational and sequential functions, while the 2,048-bit EABs implement high-density memories or complex arithmetic. The continuous FastTrack interconnect fabric provides predictable timing across all device densities. Typical applications include telecommunications line cards, industrial control systems, glue logic between microprocessors and peripherals, bus bridging, and prototype ASIC emulation. The combination of moderate gate count and integrated memory makes this device especially suited for state machine control, FIFO buffering, and protocol adaptation tasks. When designing with this part, mind the 5 V supply rail and TTL-compatible I/O thresholds — the device cannot be directly interfaced to 3.3 V logic without level translation. The exposed pad on the RQFP package must be soldered to the PCB thermal land for reliable operation. This page synthesizes distributor pricing, FLEX 10K family drop-in alternatives, and design notes that complement the manufacturer datasheet to support sourcing decisions for legacy and MRO applications.

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EPF10K30RI208-4N - 30K Gates FLEX 10K FPGA | Intel/Altera
EPF10K30RI208-4N

EPF10K30RI208-4N - 30K Gates FLEX 10K FPGA | Intel/Altera

The Intel (Altera) EPF10K30RI208-4N is a 30,000-gate FLEX 10K family field-programmable gate array (FPGA) with 1,728 logic cells, 12,288 RAM bits, and 147 user I/Os, packaged in a 208-pin Power Quad Flat Pack (RQFP/BFQFP) with exposed pad. It operates from a 5V supply on a 0.42 µm CMOS SRAM process, delivers system performance up to 125 MHz, and is rated for the industrial temperature range. What is an FPGA? A field-programmable gate array (FPGA) is a semiconductor IC containing an array of configurable logic blocks (CLBs), programmable interconnect, and I/O cells that the designer can reconfigure after manufacture to implement arbitrary digital logic. FPGAs sit above microcontrollers and ASICs in the design flexibility hierarchy: more flexible than ASICs (reprogrammable) but more deterministic and parallel than microcontrollers. FPGAs are widely used for glue logic, prototyping, DSP pipelines, custom interfaces, and high-throughput data-path acceleration in telecommunications, industrial control, test equipment, and military/aerospace systems. Key features include 216 Logic Array Blocks (LABs), 6 Embedded Array Blocks (EABs) for distributed RAM/ROM, built-in JTAG (IEEE 1149.1) boundary-scan support, and SRAM-based configuration loaded from a serial PROM or microprocessor. The device supports MultiVolt I/O for interfacing to 3.3V and 5V logic, in-system programmability via the Altera ByteBlaster or BitBlaster cables, and is software-compatible with the MAX+PLUS II and Quartus design flows. The FLEX 10K architecture combines a fine-grained logic fabric with coarse-grained EABs, making it efficient for both random logic and memory-intensive functions such as FIFOs, lookup tables, and DSP filter banks. Each EAB provides 2,048 bits of RAM, supporting true dual-port, single-port, or ROM configurations. Typical applications include industrial motor control, telecom multiplexer/cross-connect hardware, military signal processing, prototyping ASICs, and legacy system retrofits. The 208-pin RQFP package is socket-compatible with the rest of the FLEX 10K family, enabling drop-in upgrades within the family. When designing with this device, plan configuration storage (typically a 1 Mbit EPC1 or larger serial PROM), ensure the JTAG chain is properly terminated, and allocate 5V core bypassing with 0.1 µF + 10 µF capacitors near each supply pin. This page synthesizes distributor pricing, FLEX 10K family cross-references, and practical design notes not consolidated in a single manufacturer datasheet.

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EPF10K30RI240-4 - FLEX 10K FPGA 30K Gates 1728 Cells 240-RQFP | Intel
EPF10K30RI240-4

EPF10K30RI240-4 - FLEX 10K FPGA 30K Gates 1728 Cells 240-RQFP | Intel

The Intel (formerly Altera) EPF10K30RI240-4 is a member of the FLEX 10K family of Field Programmable Gate Arrays (FPGAs) built on a 0.42 µm CMOS SRAM process, delivering 30,000 typical gates, 1,728 logic cells, and 12 kbit of embedded memory in a 240-pin RQFP (Power Quad Flat Pack) package with exposed pad. It provides 189 user I/Os, 216 Logic Array Blocks (LABs), an internal frequency up to 125 MHz, and propagation delay around 0.6 ns, designed for 5 V core operation. An FPGA (Field Programmable Gate Array) is a type of programmable logic device (PLD) that combines the high integration of a gate array with the design flexibility of in-system programmability. Within the semiconductor hierarchy, an FPGA sits between ASICs and CPLDs: it offers ASIC-class density and performance while remaining fully re-programmable in the field. FPGAs typically integrate configurable logic blocks (CLBs/LABs), programmable interconnects, embedded memory (BRAM/EAB), and (in modern families) hard processor cores and DSP blocks. Key features of the EPF10K30RI240-4 include 189 programmable user I/O pins supporting MultiVolt I/O interfacing, on-chip SRAM-based configuration memory, pin-controlled options for slew-rate adjustment, PCI clamping diode, and open-drain output mode, and embedded array blocks (EABs) for distributed memory. The device supports in-system configuration via serial or parallel EPROM, JTAG boundary-scan testing per IEEE 1149.1, and is offered in a commercial 0 °C to 70 °C operating temperature grade. Technically, the EPF10K30RI240-4 uses a hierarchical interconnect architecture: row and column FastTrack channels route signals between LABs, while embedded array blocks provide true dual-port RAM, ROM, FIFO, and multiplier functions. The 5 V VCCINT supply and MultiVolt VCCIO rails (3.3 V / 5 V) make it compatible with both 5 V TTL and 3.3 V logic systems, simplifying mixed-voltage board design. This particular speed grade (-4) is the fastest commercial grade for the FLEX 10K family at this density. Typical applications include telecommunications line cards, industrial control and instrumentation, glue-logic integration for embedded systems, prototyping of ASIC designs, image and signal processing front-ends, and legacy 5 V system upgrades. The 189 I/Os make it especially well suited to bus-intensive bridging and protocol conversion designs. When designing with this part, ensure that VCCINT is decoupled with low-ESR bulk and ceramic capacitors placed close to the package, and verify that the configuration EPROM (EPC1, EPC2, or compatible) is sized correctly for the 30 K-gate bitstream. The exposed thermal pad must be soldered to a sufficient copper pour for heat dissipation. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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EPF10K30RI240-4N - 30K FLEX-10K FPGA, 189 I/O, 240-BFQFP | Intel
EPF10K30RI240-4N

EPF10K30RI240-4N - 30K FLEX-10K FPGA, 189 I/O, 240-BFQFP | Intel

The Intel (formerly Altera) EPF10K30RI240-4N is a member of the FLEX 10K family of SRAM-based Field-Programmable Gate Arrays (FPGAs), delivering approximately 30,000 typical gates and 1,728 logic elements (LEs) organized into 216 Logic Array Blocks (LABs) with 12,288 bits of embedded memory. Housed in a 240-pin BFQFP (RQFP) exposed-pad package, this -4 speed-grade device operates from a 5 V core supply with MultiVolt I/O support and provides 189 user I/O pins for high-density glue-logic and bus-interface designs. An FPGA (Field-Programmable Gate Array) is a semiconductor device built around an array of configurable logic blocks (CLBs/LABs), programmable interconnects, and I/O cells, all defined by a user-loaded SRAM configuration bitstream. FPGAs sit in the programmable logic hierarchy between simple PLDs/CPLDs and ASICs, offering higher density than CPLDs while avoiding the NRE cost of an ASIC. The FLEX 10K family was the industry's first family to embed dedicated array blocks (EABs) alongside logic, providing System-on-a-Programmable-Chip (SOPC) integration for memory, multiplier, or microcontroller functions. Key features of the EPF10K30RI240-4N include 1,728 logic elements across 216 LABs, 12,288 RAM bits distributed across Embedded Array Blocks (EABs), 189 usable I/O pins, and a 0.42 µm CMOS SRAM process. The device supports in-system JTAG (IEEE 1149.1) configuration via BitBlaster, ByteBlasterMV, or Jam STAPL tools, allowing fast prototyping and field upgrades. Per-pin PCI-clamping, slew-rate control, and open-drain options are configured through Altera logic-option settings. Architecturally, the FLEX 10K device uses a continuous interconnect structure (FastTrack) routing LABs and EABs, with each LAB containing eight LEs plus local carry and cascade chains. The -4 speed grade corresponds to a faster internal timing bin over -3/-2, suitable for 125 MHz-class internal frequencies in typical designs. The MultiVolt I/O feature lets VCCIO be tied to 3.3 V or 5 V while VCCINT remains at 5 V, enabling mixed-voltage interfacing on legacy 5 V buses. Typical applications include legacy telecom line-card glue logic, industrial bus bridges (PCI, ISA, VME), ASIC prototyping, and replacement of multiple 74-series TTL/MSI devices on a single board. The BFQFP-240 footprint is also widely used in long-lifecycle industrial PCs and military/aerospace retrofits where modern FPGAs cannot be sourced. Design considerations focus on configuration planning: because FLEX 10K is SRAM-based, the bitstream must be loaded from a serial EPROM (EPC1/EPC2) or a microcontroller on every power-up. The exposed pad on the RQFP-240 must be soldered to a thermal copper pour for mechanical reliability and to keep junction temperature within the 0 °C to 70 °C commercial range. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet alone.

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EPF10K40RC208-3N - Flex 10K FPGA 40K Gates 5V 208-RQFP | Intel
EPF10K40RC208-3N

EPF10K40RC208-3N - Flex 10K FPGA 40K Gates 5V 208-RQFP | Intel

The Intel (formerly Altera) EPF10K40RC208-3N is a member of the Flex 10K family of FPGAs, featuring 40,000 equivalent gates, 2,304 logic elements (LEs) and 16,384 bits of embedded SRAM in a 208-pin RQFP (Power QFP) surface-mount package. It is built on a 0.42 µm CMOS SRAM process and operates from a 5 V supply, delivering a propagation delay of 0.6 ns and supporting internal clock frequencies up to 66.67 MHz per the manufacturer description, with 147 user I/O pins available on the RQFP-208 footprint. The Flex 10K family was the industry's first embedded programmable logic device (PLD) family, providing System-on-a-Programmable-Chip (SOPC) integration. An FPGA (Field-Programmable Gate Array) is a reconfigurable integrated circuit whose logic blocks, routing and I/O cells are defined by a user-supplied bitstream stored in SRAM. Flex 10K sits in the broader taxonomy as PLD -> CPLD/FPGA -> programmable logic -> integrated circuit, and historically pioneered embedded-array blocks (EABs) used as on-chip ROM, RAM, or multiplier functions. Key features of the EPF10K40RC208-3N include 2,304 logic elements, 16,384 bits (16 Kb) of embedded array SRAM, 147 user I/Os with multi-voltage I/O support (3.3 V and 5 V), and an exposed thermal pad option on the 208-BFQFP package. Speed grade -3 places it in the mid-speed bin of the family, and the -N suffix denotes a lead-free / Pb-free terminal finish. The device uses a hierarchical interconnect architecture with embedded array blocks (EABs), look-up table (LUT)-based logic elements, and continuous FastTrack routing. Configuration is loaded from a serial PROM or microcontroller into on-chip SRAM cells, allowing unlimited in-system reconfiguration. MultiVolt I/O allows it to interface with both 3.3 V and 5 V peripherals on the same board, an important feature during the transition era of mixed-voltage logic. Typical applications of the EPF10K40RC208-3N include glue logic replacement, custom peripheral controllers, industrial bus bridges, telecommunications line-card interface logic, and legacy industrial/embedded glue. It is also widely used to bridge legacy TTL/CMOS logic blocks and as a prototyping vehicle before migrating to a structured ASIC. Design considerations include ensuring the JTAG configuration chain supports 5 V signaling, using a stable 5 V core supply, and following the MAX+PLUS II or Quartus design flow (where the EPF10K40 is still supported for legacy projects). Because this part has been in production since the late 1990s, lifecycle status should be confirmed before any new commitment. This page consolidates distributor pricing, drop-in replacement candidates, and design notes that complement (but do not replace) the manufacturer datasheet and legacy configuration manuals.

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EPF10K40RC208-4 - Flex 10K FPGA, 40K Gates, 147 I/O, RQFP-208 | Intel
EPF10K40RC208-4

EPF10K40RC208-4 - Flex 10K FPGA, 40K Gates, 147 I/O, RQFP-208 | Intel

The Intel EPF10K40RC208-4 is a member of the FLEX 10K family of Field Programmable Gate Arrays (FPGAs), delivering approximately 40,000 typical gates with 2,304 logic elements housed in a 208-pin RQFP (Plastic Quad Flat Pack) package with exposed pad. The device integrates a high-performance embedded array block (EAB) architecture with 16,384 bits of RAM distributed across 288 logic array blocks, operating from a 5 V supply at up to 125 MHz internal frequency. A Field Programmable Gate Array (FPGA) is a semiconductor integrated circuit based on a matrix of configurable logic blocks (CLBs) connected via programmable interconnect. FPGAs sit within the broader hierarchy of programmable logic devices (PLDs), occupying the high-density end above SPLDs and CPLDs. The FLEX 10K family pioneered System-on-a-Programmable-Chip (SOPC) integration by embedding dedicated memory (EABs) alongside the logic fabric, a design pattern later scaled by every subsequent high-density FPGA family. Key features of the EPF10K40RC208-4 include 147 user I/O pins, 288 LABs (Logic Array Blocks), 0.42 µm CMOS process technology, support for in-system programmability via SRAM configuration cells, and 6 ns propagation delay. The exposed-pad 208-pin RQFP package aids thermal dissipation while keeping the package compatible with existing FLEX 10K board designs. Architecturally, the FLEX 10K device combines a fine-grained logic fabric with coarse-grained EABs that double as 256×8 or 512×4 dual-port RAM blocks. This hybrid approach allows efficient implementation of both random logic and datapath/memory functions on a single chip, reducing the typical two-chip (FPGA + SRAM) solution to one. Configuration is loaded from a serial or parallel PROM at power-up via the built-in SRAM-based logic. Typical applications include telecommunications line cards, industrial control logic replacement, glue logic for legacy systems, ASIC prototyping, and embedded controllers. The wide gate count also suits digital signal processing front-ends and bus-interface bridging between microprocessors and peripherals. When designing with the EPF10K40RC208-4, ensure proper decoupling (0.1 µF + 10 µF bulk near each VCC pin) and verify JTAG chain integrity. The 5 V supply rail and 0.42 µm process mean the device is not directly pin-compatible with 3.3 V Cyclone or MAX families; a level-shifting interface is required when bridging to modern logic. This page synthesizes distributor pricing, drop-in same-package alternatives from the FLEX 10K family, and design notes not collected in the manufacturer datasheet.

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EPF10K40RC240-3 - 40K Gates 2304 LEs FLEX 10K FPGA | Intel / Altera
EPF10K40RC240-3

EPF10K40RC240-3 - 40K Gates 2304 LEs FLEX 10K FPGA | Intel / Altera

The Intel / Altera EPF10K40RC240-3 is a member of the FLEX 10K family of FPGAs featuring 40,000 typical gates, 2,304 logic elements (LEs), 189 I/Os, and 16,384 embedded memory bits, packaged in a 240-pin PowerQuad RQFP with exposed pad. Fabricated on a 5V, 0.42 µm CMOS process, this device delivers up to 125 MHz internal performance and supports both 3.3V and 5.0V supply operation, providing flexibility for mixed-voltage legacy designs. An FPGA (Field Programmable Gate Array) is a semiconductor device built around an array of configurable logic blocks (CLBs / LABs / LEs) interconnected by a programmable routing fabric. FPGAs sit hierarchically between CPLDs (smaller, simpler) and ASICs (custom, fixed function), enabling hardware-level parallelism for glue logic, prototyping, DSP preprocessing, and interface bridging without the NRE cost of a custom ASIC. The FLEX 10K family was Altera's first to embed a dedicated array block alongside the logic array, pioneering the System-on-a-Programmable-Chip (SOPC) concept. Key differentiating features include 288 Logic Array Blocks (LABs), built-in low-skew clock distribution trees, FastTrack® Interconnect continuous routing for predictable interconnect delays, Tri-State emulation for bi-directional bus support, and 100% functional testing of all devices before shipment. The -3 speed grade denotes the standard speed bin within this speed-sorted family. Architecturally, the FLEX 10K device combines a symmetric LUT-based logic array with embedded array blocks (EABs) that implement RAM, ROM, or product-term logic - useful for FIFOs, lookup tables, and DSP-style multiply-accumulate functions. The 240-pin RQFP package exposes the full user-I/O count (189 pins), enabling integration into existing legacy designs that demand high pin density on a through-hole-compatible footprint. Typical applications for the EPF10K40RC240-3 include industrial control and factory automation, telecommunications glue logic, legacy system upgrade and retrofit, glue logic for CPU/memory buses, prototyping for ASIC designs, and custom interface bridging in instrumentation. Its 5V tolerance makes it particularly suited to industrial and telecommunications equipment from the 1990s and 2000s that still requires 5V I/O compatibility. When designing with this device, verify the Quartus / MAX+PLUS II toolchain support for the chosen FLEX 10K variant. The 240-pin RQFP package requires adequate PCB thermal relief and the exposed pad must be soldered to a thermal pad on the PCB for specified thermal performance. This page synthesizes distributor pricing across 22+ sources, drop-in same-brand alternatives from the FLEX 10K family, and practical design notes not found in the original manufacturer datasheet - giving engineers a one-stop reference for sourcing and substitution decisions on legacy 5V FPGA designs.

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EPF10K40RC240-4N - 40K Gate FLEX 10K FPGA 189 I/O 240-RQFP | Altera
EPF10K40RC240-4N

EPF10K40RC240-4N - 40K Gate FLEX 10K FPGA 189 I/O 240-RQFP | Altera

The Altera (Intel) EPF10K40RC240-4N is a FLEX 10K family embedded programmable logic device (PLD) delivering 40,000 typical gates and 2,304 logic elements (cells) with 16,384 bits of embedded memory, packaged in a 240-pin RQFP with exposed pad. It supports up to 189 user I/Os and operates at a maximum internal frequency of 125 MHz on a 0.42 µm CMOS process at 5 V supply. An FPGA (Field Programmable Gate Array) is a programmable logic device whose architecture consists of an array of configurable logic blocks (LABs) interconnected by a programmable routing fabric and surrounded by programmable I/O cells. The FLEX 10K family pioneered embedded array blocks (EABs) that integrate RAM/ROM-style memory blocks alongside logic elements, hence the label "embedded programmable logic device". Within the broader taxonomy, the EPF10K40RC240-4N is a member of the PLA (programmable logic) -> PLD -> CPLD/FPGA -> SRAM-based FPGA hierarchy. Key features include 288 logic array blocks (LABs), 189 maximum user I/Os, 5 V VCCINT/VCCIO operation, JTAG (IEEE 1149.1) boundary-scan testing support, in-system programmability via the Altera ByteBlasterMV or BitBlaster cable, and 0.42 µm CMOS technology. The "-4" speed grade places it in the moderate-performance tier within the FLEX 10K family, and the "N" suffix indicates a lead-free / RoHS-compliant commercial-grade part rated for 0 °C to 85 °C operation. The FLEX 10K architecture combines a coarse-grained logic fabric (LEs grouped into LABs) with embedded array blocks (EABs) that provide 2 Kbit RAM blocks with registered outputs, allowing designers to build arithmetic functions, state machines, and small on-chip memories in one device. The device is volatile (SRAM configuration) and must be loaded from a serial or parallel EPROM, microcontroller, or download cable at every power-up. Typical applications include glue logic and bus interfacing in telecommunications equipment, industrial control and instrumentation front-ends, prototyping of ASIC designs, and embedded control blocks where moderate logic density (40K gates) is needed with legacy 5 V I/O compatibility. The 5 V-tolerant I/O bank makes it a natural choice for bridging to older peripherals. When designing with the EPF10K40RC240-4N, ensure a configuration source (EPROM, download cable, or microcontroller) is available at every power-up because the SRAM cells lose their configuration when VCC drops. Provide proper decoupling on VCCINT and VCCIO, and respect the exposed-pad thermal connection on the RQFP package for heat spreading. This page synthesizes distributor pricing, drop-in same-brand FLEX 10K alternatives, and practical design notes not found in the manufacturer datasheet alone, including explicit pinout mapping and parametric comparison vs the speed-grade and density variants in the same family.

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EPF10K40RC2404 - FLEX 10K FPGA 40K Gates 240-RQFP | Intel / Altera
EPF10K40RC2404

EPF10K40RC2404 - FLEX 10K FPGA 40K Gates 240-RQFP | Intel / Altera

The Intel (formerly Altera) EPF10K40RC2404 is a member of the FLEX 10K family of SRAM-based Field Programmable Gate Arrays (FPGAs), integrating 40,000 typical gates and 2,304 logic elements (cells) into a 240-pin RQFP (Plastic Quad Flat Pack) package with exposed pad. It supports 18,816 dedicated flip-flops, operates from a 5V core supply, and is fabricated on a 0.42 µm CMOS process. The device provides 189 user I/O pins with built-in distributed and embedded array blocks (EABs), making it suitable for high-density glue-logic, bus-interface, and DSP-style datapath designs in legacy industrial and telecom systems. An FPGA (Field Programmable Gate Array) is a reconfigurable integrated circuit whose logic fabric can be programmed by the end user after PCB assembly. The FLEX 10K family is the second-generation Altera architecture that introduced Embedded Array Blocks (EABs) - dedicated dual-port RAM blocks of 2,048 bits each - allowing efficient on-chip memory for FIFO, ROM, and DSP coefficient storage. FPGAs occupy a hypernym hierarchy of programmable logic device -> programmable logic -> digital integrated circuit -> semiconductor. The EPF10K40RC2404 sits in the mid-density FLEX 10K range, below the EPF10K100 and EPF10K130, and above the EPF10K30 and EPF10K20 devices. Key features include 288 Logic Array Blocks (LABs) of 8 logic elements each, 4 EABs providing 8,192 bits of embedded RAM, multi-volt I/O support (5.0V PCI-compatible and 3.3V), and in-system programmability through the IEEE 1149.1 JTAG interface. The -4 speed grade delivers a maximum internal toggle frequency of approximately 125 MHz. Each logic element contains a 4-input look-up table (LUT), a programmable register, and a carry chain for fast arithmetic, while the interconnect fabric provides fast row and column channels with predictable routing delays. Typical applications include PCI bus interfaces, telecommunications glue logic, industrial control and instrumentation front-ends, prototyping of ASIC designs, and replacement of multiple discrete SSI/MSI logic packages. The 240-pin RQFP package offers manageable board-level assembly while exposing sufficient I/O for wide parallel buses. Designers migrating to newer Cyclone or MAX families can reuse FLEX 10K Verilog/VHDL code with minimal modification when the I/O count and logic density are within the new device's range. When designing with the EPF10K40RC2404, ensure that JTAG chain integrity is verified before programming, that VCCINT (5V) and VCCIO (3.3V or 5V) rails are decoupled with 0.1 µF and 10 µF capacitors placed within 5 mm of each supply pin, and that unused I/O pins are configured as inputs with weak pull-ups to minimize quiescent current. Boundary-scan testing should be exercised on assembled boards prior to conformal coating.

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EPF10K50EFC256-3 - 50K Gates FLEX 10KE FPGA, 256-BGA | Intel / Altera
EPF10K50EFC256-3

EPF10K50EFC256-3 - 50K Gates FLEX 10KE FPGA, 256-BGA | Intel / Altera

The Intel (formerly Altera) EPF10K50EFC256-3 is a member of the FLEX 10KE family of SRAM-based Field-Programmable Gate Arrays (FPGAs) with approximately 50,000 typical gates, 2,880 logic cells (logic elements), and 360 logic array blocks (LABs), housed in a 256-pin FineLine BGA package with 191 user I/Os and a 2.5V core supply. The device is built on a 0.42 µm CMOS process with 5.0V tolerant I/O, supports in-system programmability via IEEE Std. 1149.1 JTAG boundary-scan, and runs up to 166.67 MHz internal frequency with 0.6 ns propagation delay at the -3 speed grade. An FPGA (Field-Programmable Gate Array) is a type of programmable logic device (PLD) — semiconductor integrated circuits that can be configured by the customer after manufacturing to implement arbitrary digital logic. Within the broader hierarchy, FPGAs belong to the PLD family, which sits under logic ICs and ultimately semiconductor devices. Unlike fixed-function ASICs, FPGAs integrate configurable logic blocks (LABs in Altera terminology), programmable interconnect, and embedded array blocks (EABs) that include on-chip memory. The FLEX 10KE generation introduced embedded dual-port RAM via EABs and FastTrack interconnect for high-speed designs. Key features of the EPF10K50EFC256-3 include 40,960 bits of embedded memory distributed across 10 EABs, 191 maximum user I/O pins, 5.0V tolerant inputs with 2.5V VCCINT core voltage, MultiVolt I/O interface support for mixed-voltage systems, and 4-input look-up table (LUT) based logic elements. The -3 speed grade provides the highest performance tier in the FLEX 10KE family, suitable for high-throughput glue logic, bus interfacing, and DSP co-processing. Architecturally, the device uses the proven FLEX 10KE fabric with each LAB containing 8 logic elements (LEs), each LE built around a 4-input LUT, a programmable register, and a carry chain for fast arithmetic. The 10 embedded array blocks (EABs) implement dual-port RAM of up to 2,048 bits each, totaling 40,960 bits of block RAM, with true dual-port and parity options. Programmable FastTrack interconnect provides continuous routing rows and columns, and the I/O elements (IOEs) include registers, JTAG support, and MultiVolt compatibility. Typical applications for the EPF10K50EFC256-3 include telecommunications line cards and cross-connects, industrial control and factory automation glue logic, military and aerospace signal processing, PCI bus interface controllers, DSP co-processors, and legacy system redesigns. The 256-FBGA FineLine BGA package and 2.5V core make it appropriate for compact, high-density designs where board area is constrained and a moderate logic capacity (50K gates) is sufficient. When designing with this part, engineers should note that it is in the FLEX 10KE lifecycle and is generally considered mature/last-time-buy on Intel's product cycle, so pin-compatible drop-in alternatives (other FLEX 10KE members in the same 256-FBGA, such as EPF10K30EFC256-3 and EPF10K100EFC484-3 in larger packages) should be evaluated alongside new-generation Cyclone or MAX families for new designs. This page synthesizes distributor pricing (Mouser/Heisener), verified Altera/Intel datasheet specifications, drop-in replacement alternatives from the same FLEX 10KE family, and engineering design notes — context not found in the manufacturer datasheet alone.

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EPF10K50EFC484-2 - 50K Gates FLEX-10KE FPGA, 484-BGA | Intel / Altera
EPF10K50EFC484-2

EPF10K50EFC484-2 - 50K Gates FLEX-10KE FPGA, 484-BGA | Intel / Altera

The Intel / Altera EPF10K50EFC484-2 is a FLEX-10KE family Field-Programmable Gate Array (FPGA) integrating 50,000 typical gates and 2,880 logic elements into a 484-ball FineLine BGA package with 220 user I/O pins and 40,960 bits of embedded SRAM. What is a FLEX-10KE FPGA? The FLEX-10KE family is Altera's third-generation SRAM-based programmable logic device family that pioneered the embedded array block (EAB) concept, integrating dedicated dual-port RAM blocks alongside a general-purpose logic array. In the device hierarchy, a FLEX-10KE sits above conventional CPLDs and below high-end FPGAs, targeting glue-logic, bus-interface, and moderate-density datapath applications. Key features of the EPF10K50EFC484-2 include 2,880 logic cells (LEs), 12 embedded array blocks (EABs) providing 40,960 bits of memory, 200 MHz internal performance, and built-in Joint Test Action Group (JTAG) boundary-scan test (BST) circuitry compliant with IEEE Std. 1149.1-1990. The device operates from a 2.5 V core supply with multi-voltage I/O support, and is fabricated on a 0.22 micrometer CMOS process. Speed grade -2 places this part in the mid-speed bin of the FLEX-10KE family. Architecturally, each logic element combines a 4-input look-up table, a programmable flip-flop, and dedicated carry and cascade chains, while each EAB provides 2,048 bits of dual-port RAM configurable as 256x8, 512x4, 1024x2, or 2048x1. This hybrid logic-plus-memory architecture allows single-chip implementation of wide datapath functions such as FIFOs, DSP building blocks, and bus controllers without external memory devices. Typical applications for the EPF10K50EFC484-2 span industrial control systems, telecommunications line cards, PCI bus interfaces compliant with PCI Local Bus Specification Revision 2.2 at 33 MHz and 66 MHz, test and measurement equipment, and legacy upgrade replacements. With 220 user I/Os, the device is well suited to bus-intensive designs such as memory controllers, bridge chips, and protocol converters. When designing with this part, note that Altera/Intel has marked the FLEX-10KE family as obsolete in long-term product roadmaps, so this component is recommended for legacy maintenance and existing design support rather than new designs. New designs should consider Cyclone IV, Cyclone V, or MAX 10 devices as modern successors. This page synthesizes distributor inventory, lifecycle status, and practical cross-reference notes for engineers maintaining legacy FLEX-10KE designs or sourcing replacements for end-of-life inventory.

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EPF10K50EQC208-3 - FLEX 10KE 50K Gates FPGA | Intel | 208-PQFP
EPF10K50EQC208-3

EPF10K50EQC208-3 - FLEX 10KE 50K Gates FPGA | Intel | 208-PQFP

The Intel (formerly Altera) EPF10K50EQC208-3 is a member of the FLEX 10KE programmable logic family, delivering 50,000 typical gates and 2,880 logic elements in a 208-pin Plastic Quad Flat Pack (PQFP / BFQFP) package. Built on a 0.22 µm SRAM-based CMOS process, the device integrates 40,960 bits of embedded array memory (EAB) and 147 user I/Os for high-density glue-logic, datapath, and peripheral bridging applications. A Field Programmable Gate Array (FPGA) is a semiconductor integrated circuit whose digital logic function is defined after manufacturing by the end user. Architecturally, an FPGA sits within the broader hierarchy of programmable logic devices (PLDs), between simple Complex Programmable Logic Devices (CPLDs) and high-end Application-Specific Integrated Circuits (ASICs). Within the programmable logic family tree, FPGAs are subdivided by architecture into SRAM-based, antifuse-based, and Flash-based variants; the FLEX 10KE family belongs to the SRAM-based, volatile-configuration segment, requiring a configuration EPROM or controller to load the bitstream at every power-up. The part number breaks down as follows: EPF10K = FLEX 10K family; 50 = 50K typical gates; E = Enhanced (10KE variant); Q = PQFP package; C = Commercial temperature grade (0 °C to +70 °C); 208 = 208 pins; -3 = speed grade. The device supports a core supply of 2.3 V to 2.7 V (2.5 V typical) with 3.3 V or 5.0 V tolerant I/O banks, a maximum internal frequency near 166.67 MHz, and 360 LABs (Logic Array Blocks). Each LAB contains 8 Logic Elements, providing efficient implementation of wide combinational and registered functions. The device is supplied in a 28 mm × 28 mm body, 208-BFQFP (also called PQFP) tray package. Typical applications include bus-bridging ASIC prototyping, glue logic in telecom backplane designs, industrial control interfaces, and image-processing front ends. The rich EAB memory and four FastTrack interconnect rows make this device well suited to high-speed datapath pipelines. When designing with this device, ensure your board hosts a configuration source (EPC1/EPC2 or a microcontroller) and plan I/O banking for mixed 3.3 V/5 V peripherals. For new designs, consider Cyclone or Cyclone II as modern, non-obsolete alternatives; the FLEX 10KE family is end-of-life.

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EPF10K50EQC240-1 - FLEX 10KE 50K FPGA 240-PQFP | Intel
EPF10K50EQC240-1

EPF10K50EQC240-1 - FLEX 10KE 50K FPGA 240-PQFP | Intel

The Intel EPF10K50EQC240-1 is a member of the FLEX 10KE family of SRAM-based Field-Programmable Gate Arrays, delivering 50,000 typical gates and 2,880 logic elements in a 240-pin Plastic Quad Flat Pack (PQFP) with 189 user I/Os. Built on a 0.22 µm CMOS process and operating from a 2.5 V nominal supply (2.3 V min, 2.7 V max), the device combines a logic array block architecture with embedded array blocks for System-on-a-Programmable-Chip (SOPC) integration, reaching internal performance of up to 250 MHz. A Field-Programmable Gate Array (FPGA) is a type of programmable logic device (PLD) containing an array of configurable logic blocks (CLBs), programmable interconnect, and programmable I/O cells that engineers can configure after manufacturing to implement custom digital circuits. Within the broader hierarchy, FPGAs sit above simple PLDs (PALs, GALs) and below application-specific integrated circuits (ASICs); the FLEX 10KE family in particular pioneered embedded memory and embedded array blocks, making it one of the first true SOPC devices where memory and logic coexist on a single die. The "-1" speed grade of EPF10K50EQC240 designates the slowest of three commercial speed grades offered in this family. Key features include 40,960 bits of embedded RAM distributed across EABs, 360 Logic Array Blocks (LABs), 189 usable I/O pins, in-system programmability via the IEEE 1149.1 JTAG interface, and 0.22 µm SRAM-based configuration cells that allow unlimited reconfiguration. The device supports multi-voltage I/O standards and offers low-power consumption relative to equivalent ASIC gate counts. Its 240-pin PQFP packaging provides gull-wing leads suitable for surface-mount assembly and rework. Typical applications span communications infrastructure, industrial automation, test and measurement instrumentation, and legacy embedded systems requiring 50K-gate-class programmable logic. The wide I/O count (189) makes EPF10K50EQC240-1 particularly suited to bus-intensive designs such as PCI bridges, custom microcontroller peripherals, and DSP co-processing front ends. When designing with EPF10K50EQC240-1, ensure a stable 2.5 V core supply with sufficient decoupling near the VCC pins; the SRAM configuration cells are volatile and require a configuration device or microprocessor on every power-up. PCB designers should follow PQFP thermal guidelines and provide adequate ground returns for the 189 high-speed I/O transitions. This page synthesizes distributor pricing, parametric comparison with same-package FLEX 10KE family members, lifecycle status, and practical design notes not consolidated in a single manufacturer document, complementing the official Altera/Intel datasheet and device handbook.

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EPF10K50EQC240-1N - FLEX 10KE FPGA 50K Gates 2880 Cells 240-PQFP | Altera
EPF10K50EQC240-1N

EPF10K50EQC240-1N - FLEX 10KE FPGA 50K Gates 2880 Cells 240-PQFP | Altera

The Altera (Intel) EPF10K50EQC240-1N is a FLEX 10KE family Field-Programmable Gate Array (FPGA) with 50K equivalent gates, 2880 logic elements, and 40960 bits of embedded memory, housed in a 240-pin Plastic Quad Flat Pack (PQFP / BFQFP) package. The device operates from a 2.5V core supply, supports 189 user I/O pins, and is built on a 0.22 µm CMOS SRAM process. An FPGA (Field-Programmable Gate Array) is a type of programmable logic device that contains an array of configurable logic blocks, programmable interconnect, and I/O cells, all of which can be reconfigured by the designer after manufacture. FPGAs sit in the broader taxonomy of programmable logic device (PLD) -> logic IC -> integrated circuit (IC) -> semiconductor. Unlike ASICs, FPGAs allow rapid prototyping and field upgrades without fabrication cycles, making them ideal for glue logic, custom state machines, and glue between microprocessors and peripherals. Key features of the EPF10K50EQC240-1N include 360 Logic Array Blocks (LABs), 50K gates of logic capacity, 2880 logic cells, 12 Embedded System Blocks (ESBs) providing 40,960 bits of RAM, true dual-port RAM support, multi-volt I/O supporting 2.5V/3.3V/5V interfacing, in-system programmability via the serial passive (PS) configuration mode, and JTAG boundary-scan test support per IEEE 1149.1. The part is specified over the commercial 0 °C to +85 °C temperature range, with internal performance capable of 250 MHz operation. Architecturally, the FLEX 10KE device uses a continuous, fine-grained interconnect called the FastTrack Interconnect, with each row and column of logic elements routed through this interconnect to deliver predictable timing. The 0.22 µm process and 2.5V core allow low static and dynamic power dissipation while supporting fast propagation delays of approximately 0.5 ns per logic element. Typical applications include telecommunications line-card glue logic, industrial control and instrumentation interfaces, PCI bus bridges, video processing front-ends, custom peripheral controllers for legacy microprocessors, and prototyping for ASIC replacement. The 189 user I/Os and multi-volt capability make the device well suited to bridging 5V peripherals to 3.3V or 2.5V ASICs and processors. When designing with this part, note that the configuration scheme must be selected (e.g., PS, AS, JTAG) and the Quartus / MAX+PLUS II tool flow used. The 240-pin PQFP footprint requires through-hole-style soldering or a socket; consider the FQFP variant (EPF10K50EQI240-1N) only if industrial temperature range is required, not for package differences. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet, supporting both procurement engineers and FPGA designers.

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EPF10K50EQC240-2 - 50K FLEX-10KE FPGA, 240-PQFP | Intel
EPF10K50EQC240-2

EPF10K50EQC240-2 - 50K FLEX-10KE FPGA, 240-PQFP | Intel

The Intel (formerly Altera) EPF10K50EQC240-2 is a member of the FLEX-10KE family of Field-Programmable Gate Arrays (FPGAs) that integrates 2,880 logic elements and 40,960 system gates into a 240-pin Plastic Quad Flat Pack (PQFP-240) package. Built on a 0.22 µm CMOS process and rated for commercial-grade operation, this device combines Look-Up Table (LUT)-based logic with embedded array blocks (EABs) to deliver up to 200 MHz core performance from a 2.5 V supply. The suffix codes communicate key variants: 'E' denotes the enhanced 10KE architecture, 'QC' indicates the PQFP-240 package with commercial temperature grade, and '240-2' specifies the 240-pin PQFP at speed grade -2. A Field-Programmable Gate Array (FPGA) is a type of programmable logic device (PLD) that lets designers implement custom digital circuits by configuring an array of configurable logic blocks (CLBs), interconnect, and I/O cells. The FLEX-10KE family sits in the broader hierarchy of programmable logic: programmable logic device -> CPLD/FPGA -> SRAM-based FPGA -> embedded-block FPGA (FLEX 10KE). EABs provide on-chip dual-port RAM and ROM blocks that accelerate arithmetic, FIFO, and DSP-style datapaths without consuming general-purpose logic. Key features include 189 user I/O pins, 360 Logic Array Blocks (LABs), 12 embedded array blocks, and a typical standby current under 0.5 mA. The device supports in-system programmability via an IEEE 1149.1 JTAG interface and configuration via a serial EPROM, making it suitable for high-volume production. The PQFP-240 package provides gull-wing leads on a 0.5 mm pitch with body dimensions of 34.6 × 34.6 mm, easing PCB routing on standard 4-layer boards. Architecturally, the EPF10K50E uses SRAM configuration cells combined with a fine-grained LAB fabric and column-style EAB rows. Each LAB contains 8 logic elements with carry-chain and cascade-chain support, while EABs offer up to 2 Kbits of RAM each with configurable width. Compared with first-generation FLEX 10K, the 'E' revision doubles EAB RAM density, lowers core voltage to 2.5 V, and improves timing margin for 66 MHz PCI designs. Typical applications include PCI bus interfaces (33/66 MHz), telecommunications glue logic, industrial control state machines, glue logic for ASIC prototyping, and legacy embedded computing. The wide I/O count and generous on-chip memory make it a strong fit for multi-bridge or multi-protocol designs where several bus controllers coexist on one chip. When designing with this part, attention to decoupling (at least 0.1 µF + 10 µF per VCC pin pair), JTAG chain integrity, and configuration mode selection (PS, AS, JTAG) is critical. Designers migrating to newer Intel Cyclone or MAX families should treat the EPF10K50E as a legacy device and validate software support via the Quartus Prime toolchain. This page synthesizes distributor pricing, drop-in FLEX-10KE alternatives with the same PQFP-240 footprint, and practical design notes not found in the original manufacturer datasheet, helping engineers and sourcing teams rapidly evaluate longevity and replacement options for legacy designs.

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EPF10K50EQC240-2N - FLEX 10KE FPGA 50K Gates 240-PQFP | Intel / Altera
EPF10K50EQC240-2N

EPF10K50EQC240-2N - FLEX 10KE FPGA 50K Gates 240-PQFP | Intel / Altera

The Intel / Altera EPF10K50EQC240-2N is a member of the FLEX 10KE family of embedded programmable logic devices, integrating 50,000 typical gates, 2,880 logic elements (LEs) and 360 Logic Array Blocks (LABs) into a 240-pin Plastic Quad Flat Pack (PQFP / BFQFP) package. According to the Altera datasheet, the device is fabricated on a 0.22 µm CMOS process, operates from a 2.5 V internal supply, and offers 189 user I/Os with 40,960 bits of embedded SRAM. It is rated for the commercial temperature range of 0 °C to 70 °C and supports in-circuit reconfigurability via JTAG or external configuration devices. A Field Programmable Gate Array (FPGA) is a type of integrated circuit containing an array of programmable logic blocks, configurable interconnects, and embedded memory that can be customized after manufacturing to implement arbitrary digital logic. FPGAs sit in the broader programmable-logic hierarchy between simple PLDs (CPLDs) and fixed-function ASICs, and are widely used for glue logic, prototyping, DSP front-ends, and small-to-medium gate-count glue replacement. The FLEX 10KE family was Altera's first embedded-array family offering megafunction-class memory alongside general-purpose logic, enabling System-on-a-Programmable-Chip (SOPC) integration. Key features of the EPF10K50EQC240-2N include its 50K-gate logic capacity, 0.22 µm process node, 200 MHz internal performance, dedicated clock-distribution trees with low skew, pull-up resistors on I/O pins during configuration, and PCI-SIG compliance. The device supports multi-volt I/O interfacing with 5.0 V, 3.3 V and 2.5 V environments through programmable I/O standards, which is critical when bridging legacy and modern logic families on the same board. Architecturally, the FLEX 10KE combines a fine-grained Look-Up Table (LUT) based logic fabric with embedded array blocks (EABs) used to implement RAM, ROM, multiplier, or state-machine megafunctions. The 2,880 LEs are arranged into 360 LABs of 8 LEs each, and the four EABs supply the 40,960 bits of SRAM (equivalent to 5,120 bytes) that can be configured as single-port RAM, dual-port RAM, ROM, or content-addressable memory. Typical applications include industrial control and factory-automation boards, telecommunications glue logic and channel cards, military/aerospace ruggedized controllers, prototyping for ASIC replacement, and PCI bus interface cards. The 240-pin PQFP footprint remains convenient for hand-rework and prototype builds where a BGA would be impractical. When designing with the EPF10K50EQC240-2N, plan I/O bank assignment carefully because the 2.5 V core and multi-voltage I/O require separate power rails (VCCINT and VCCIO), and unused pins must be left floating or driven to a defined state after configuration. Configuration storage should use an Altera EPC-series configuration PROM or JTAG download cable. This page synthesizes distributor pricing, lifecycle status, drop-in alternatives from the Site MPN list, and practical design notes not consolidated on a single manufacturer datasheet, giving engineers a faster path to a sourcing decision for legacy FLEX 10KE designs.

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EPF10K50EQC240-3 - FLEX 10KE FPGA, 50K Gates, 240-PQFP | Altera
EPF10K50EQC240-3

EPF10K50EQC240-3 - FLEX 10KE FPGA, 50K Gates, 240-PQFP | Altera

The Altera (Intel) EPF10K50EQC240-3 is a FLEX 10KE family Field-Programmable Gate Array (FPGA) IC with 50,000 typical gates, 2,880 logic cells, and 189 maximum user I/Os, fabricated on a 0.22 um CMOS process and supplied from a 2.5 V core rail. The -3 speed grade corresponds to a 166.67 MHz internal frequency and 0.6 ns propagation delay, packaged in a 240-pin Plastic Quad Flat Pack (PQFP/BFQFP) with gull-wing leads. A Field-Programmable Gate Array (FPGA) is a semiconductor IC belonging to the broader class of programmable logic devices (PLDs). Within the device taxonomy hierarchy, an FPGA sits above simple PLDs/CPLDs and below fixed-function ASICs, occupying the system-on-a-programmable-chip (SOPC) tier that combines dense logic, embedded array blocks, and user-configurable I/O. The FLEX 10KE family is one of Altera's earliest embedded PLD families, providing the first true SOPC integration with dedicated embedded array blocks alongside the logic array for implementing RAM, ROM, and FIFO functions directly in silicon. Key features include 360 Logic Array Blocks (LABs), 40,960 typical bits of embedded memory, multi-voltage I/O support (2.5 V/3.3 V/5 V tolerant), in-system programmability via the serial configuration EPROM interface, and 0 to 70 C commercial temperature grading. The PQFP-240 package with 32 mm x 32 mm body and 0.5 mm lead pitch supports through-hole-compatible surface mounting and is one of the largest FQFP footprints offered in this generation. Typical applications span legacy industrial glue logic, parallel bus interfacing (ISA/PCI bridges), telecommunications line cards, military/aerospace retrofit programs, and prototyping platforms where the FLEX 10KE's embedded array blocks replace discrete FIFO/RAM chips. The part is widely used in legacy designs from the late 1990s and is now primarily sourced through the secondary market, as Altera (now Intel FPGA) has shifted focus to Cyclone and Stratix families. When designing with EPF10K50EQC240-3, ensure proper power sequencing: VCCINT (2.5 V core) must reach regulation before VCCIO banks drive outputs. Use the MAX+PLUS II or Quartus design tools for synthesis; older MAX+PLUS II projects import into modern Quartus with legacy device support. The PQFP-240 footprint requires substantial PCB real estate (roughly 32 mm x 32 mm plus lead clearance), so plan mechanical stack-up accordingly. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical obsolescence-management notes not found in the original manufacturer datasheet.

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EPF10K50EQC240-3N - FLEX 10KE FPGA 50K Gates 240-PQFP | Intel
EPF10K50EQC240-3N

EPF10K50EQC240-3N - FLEX 10KE FPGA 50K Gates 240-PQFP | Intel

The Intel (Altera) EPF10K50EQC240-3N is a member of the FLEX 10KE family of Field Programmable Gate Arrays (FPGAs), delivering 50,000 typical gates, 2,880 logic elements, and 360 logic array blocks (LABs) in a 240-pin Plastic Quad Flat Pack (PQFP/BFQFP) package. Operating at a core voltage of 2.5 V with a 0.22 µm CMOS SRAM process, this device is rated for the commercial temperature range and supports 189 user I/Os, making it suitable for glue-logic, bus-interface, and mid-complexity state-machine designs. A Field Programmable Gate Array (FPGA) is a semiconductor device built around an array of configurable logic blocks (CLBs/LABs) connected by a programmable interconnect matrix. FPGAs are a category of programmable logic devices (PLDs) within the broader semiconductor hierarchy, sitting alongside CPLDs and complex logic devices, and they are typically used when design iteration speed, parallel processing, or high I/O count outweighs the per-unit cost of an ASIC. FPGAs are commonly used in prototyping, telecommunications, industrial control, and test equipment, where the same silicon can be reconfigured for many different applications. The EPF10K50EQC240-3N integrates 40,960 bits of embedded SRAM distributed across the logic fabric, providing flexible on-chip memory for FIFO buffers, register files, and look-up tables. It supports in-system programmability via an external configuration device (such as an EPC2 or EPC8) or via JTAG, allowing field upgrades and design iteration without removing the part from the board. The -3 speed grade is the fastest commercial grade offered on the FLEX 10KE family at 240-pin PQFP, delivering higher Fmax on internal paths compared to the -2 and -1 grades. Architecturally, the FLEX 10KE family employs a continuous, hierarchical interconnect structure (FastTrack) and an embedded array block (EAB) system, giving designers the ability to implement both fine-grained logic and dedicated memory/ROM functions. The device supports multi-volt I/O operation, allowing 5.0 V, 3.3 V, and 2.5 V interfaces on the same die through bank-based VCCIO configuration. The 240-pin PQFP package provides 189 usable user I/Os after power, ground, JTAG, and configuration pins are reserved. Typical applications include industrial control and factory automation controllers, telecommunications line cards and bus bridges, test and measurement instrumentation, legacy system prototyping, and embedded control logic in printers, copiers, and medical instrumentation. Its 50K-gate capacity is well-matched to designs that outgrow a CPLD but do not require a modern high-density FPGA. When designing with the EPF10K50EQC240-3N, engineers should pay close attention to I/O banking: each bank must be supplied with a single VCCIO voltage, and 5 V-tolerant inputs require a 3.3 V VCCIO on the relevant bank. Configuration mode (AS, AP, PS, JTAG) must be selected via MSEL pins at power-up. The 240-pin PQFP has a 32.1 mm × 32.1 mm body size, so PCB real estate and via-in-pad compatibility should be considered early in layout. This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes for engineers maintaining legacy FLEX 10KE designs - information that the original Altera datasheet alone does not consolidate.

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EPF10K50EQI240-2N - 50K-Gate FLEX 10KE FPGA, 240 PQFP | Intel / Altera
EPF10K50EQI240-2N

EPF10K50EQI240-2N - 50K-Gate FLEX 10KE FPGA, 240 PQFP | Intel / Altera

The Intel (formerly Altera) EPF10K50EQI240-2N is a 50,000-gate FLEX 10KE family Field-Programmable Gate Array (FPGA) IC with 2880 logic elements and 40,960 RAM bits, housed in a 240-pin Power Quad Flat Pack (PQFP / BQFP) surface-mount package. It provides 189 user I/O pins, 360 LABs/CLBs, and operates from a 2.5 V core supply at a maximum internal frequency of 66.67 MHz (200 MHz FMax marketing speed grade -2) using 0.22 µm CMOS technology. An FPGA (Field-Programmable Gate Array) is a type of programmable logic device (PLD) that combines the high density of gate arrays with on-the-field reconfigurability, sitting at the top of the programmable logic hierarchy: PLD -> CPLD -> FPGA. The FLEX 10KE family was one of the first to integrate embedded array blocks (EABs) for implementing megafunctions such as efficient memory and specialized logic functions, providing System-on-a-Programmable-Chip (SOPC) integration with up to 50K ASIC-equivalent gates and up to 24,576 RAM bits (configurable in different widths). Key features include 199,000 maximum system gates, industrial operating temperature grade (-40 °C to +85 °C), SRAM-based configuration cells, propagation delay of 0.6 ns per logic element, and MultiVolt I/O supporting mixed-voltage interfacing. The device is built on a 0.22 µm CMOS SRAM process with four input lookup tables (LUTs) and embedded array blocks for true dual-port RAM, FIFO, and CAM functions. Its 240-pin PQFP footprint offers PCB-friendly gull-wing leads that are easier to inspect and rework than fine-pitch BGAs, making it well-suited for legacy industrial designs. Typical applications include industrial control and automation, telecom line cards, glue logic replacement, DSP co-processing front-ends, prototyping for ASIC migration, and legacy communication infrastructure where a hot-swappable logic platform is needed. Because it is SRAM-based and obsolete (EOL), designers often pair it with a configuration PROM (EPC) for production. Design considerations: the EPF10K50EQI240-2N is obsolete and may face allocation constraints; consider a Cyclone or MAX series modern equivalent for new designs. Always place decoupling capacitors within 100 mils of every VCCINT/VCCIO pair and route JTAG signals with 4-6 mil traces kept away from switching edges.

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EPF10K50ETC144-1 - FLEX 10KE FPGA 50K Gates 144-LQFP | Intel
EPF10K50ETC144-1

EPF10K50ETC144-1 - FLEX 10KE FPGA 50K Gates 144-LQFP | Intel

The Intel EPF10K50ETC144-1 is a member of the FLEX 10KE family of Field Programmable Gate Arrays (FPGAs), providing 50,000 typical gates, 2,880 logic elements (LEs), and 40,960 bits of embedded memory in a 144-pin LQFP (TQFP) surface-mount package. It offers 102 user I/O pins, 360 Logic Array Blocks (LABs), and operates from a 2.5 V core supply with 66.67 MHz internal performance. The device is fabricated on a CMOS process and supports commercial temperature grade (0 °C to +70 °C). An FPGA (Field Programmable Gate Array) is a semiconductor integrated circuit that can be configured by the customer or designer after manufacturing to implement arbitrary digital logic functions. FPGAs belong to the broader category of programmable logic devices (PLDs), which sit between fixed-function ASICs and software-programmable processors in the digital design hierarchy. Within that taxonomy: FPGA -> PLD -> programmable logic -> digital IC -> integrated circuit -> semiconductor. The FLEX 10KE family in particular introduced embedded array blocks (EABs) that function as on-chip RAM or ROM, pioneering the System-on-a-Programmable-Chip (SOPC) integration concept. Key features of the EPF10K50ETC144-1 include 360 LABs for fine-grained logic implementation, 2,880 LEs providing roughly 50K usable gates, and 40,960 RAM bits distributed across embedded array blocks. The 144-pin LQFP package supports 102 user I/Os, while the CMOS process technology keeps quiescent power low. Pin migration is supported within the FLEX 10KE family via SameFrame compatibility, allowing designers to scale density without re-laying out the PCB. Architecturally, the FLEX 10KE family combines a fine-grained LUT-based logic fabric with coarse-grained EABs that can be configured as 4 Kbit memory blocks with parity or as product-term logic. This hybrid approach makes the device well suited to designs that mix control logic with moderate on-chip data storage. MultiVolt I/O supports interfacing to 5.0 V, 3.3 V, and 2.5 V logic families, simplifying mixed-voltage system integration. Typical applications include industrial control logic, telecommunications glue logic, custom interface bridges, and legacy system prototyping where the FLEX 10KE is a long-qualified platform. The 50K-gate density positions it for moderate-complexity designs such as state machines, peripheral controllers, and PCI bus bridges that have been in production for years. When designing with this part, engineers should note that the device is mature and only available from distributors as legacy stock. Reference designs and Quartus II tool support must be obtained from the archived Altera documentation. Plan for long lead times on obsolete variants and verify pin migration compatibility before substituting other FLEX 10KE devices. This page synthesizes distributor pricing, drop-in alternatives drawn from the same FLEX 10KE family, and practical design notes that go beyond the manufacturer datasheet alone.

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EPF10K50ETC144-3 - FLEX 10KE 50K Gates 144-TQFP FPGA | Intel
EPF10K50ETC144-3

EPF10K50ETC144-3 - FLEX 10KE 50K Gates 144-TQFP FPGA | Intel

The Intel (formerly Altera) EPF10K50ETC144-3 is a member of the FLEX 10KE family of embedded programmable logic devices (PLDs), providing System-on-a-Programmable-Chip (SOPC) integration with 50,000 typical gates, 2,880 logic cells, 40,960 bits of embedded memory, and 360 LABs/CLBs in a 144-pin TQFP (also referenced as TQFP-144) surface-mount package. A Field-Programmable Gate Array (FPGA) is a reconfigurable integrated circuit whose logic fabric, interconnect, and I/O cells are defined by a user-supplied bitstream after manufacture. FPGAs sit within the broader hierarchy of programmable logic devices (PLDs) - alongside CPLDs, PALs, and GALs - and represent the highest-density, highest-performance tier used for glue logic, custom DSP, ASIC prototyping, and full system integration. The FLEX 10KE family pioneered embedded-array architecture, combining look-up-table based logic with embedded memory blocks and Embeddable Logic Array Blocks (EABs) to deliver a System-on-a-Programmable-Chip (SOPC) integration platform that pre-dated modern SoC FPGAs. Key features include 102 user I/O pins (274 maximum in the family), 0.22 µm CMOS process technology, 166.67 MHz maximum internal frequency, 0.6 ns propagation delay, 2.5 V core supply, and SameFrame pin compatibility across the FLEX 10KE family for design migration. The device is offered in the commercial 0 °C to +70 °C operating range and supports in-system programmability via the IEEE 1149.1 JTAG boundary-scan interface and the Altera serial configuration scheme. The EPF10K50ETC144-3 is built on a 0.22 µm four-metal-layer CMOS process, with 3.3 V tolerant I/O banks supporting LVTTL, LVCMOS, PCI, and other common interface standards of its generation. Its SRAM-based configuration memory allows unlimited reconfiguration but requires a configuration PROM or microcontroller to load the bitstream at power-up. The -3 speed grade corresponds to a faster device-bin than the -4 grade, enabling higher Fmax for clocked logic paths. Typical applications include telecommunications line cards, industrial control and glue logic, legacy ASIC prototyping, custom DSP datapaths, and test-and-measurement front-ends. Designers value the FLEX 10KE family for deterministic pin-to-pin timing and abundant memory for small to medium-density designs where modern FPGA tools would be overkill. The 144-pin TQFP package also makes the part hand-solderable for prototyping. When designing with this part, note that the SRAM configuration cells must be loaded from a serial or parallel PROM on every power-up; plan a configuration clock source and ensure all unused I/O pins are configured as inputs with weak pull-ups to avoid floating-input quiescent current. The SameFrame pin migration path is supported only with the 484-pin FineLine BGA package, so TQFP-144 designs are not directly migratable to higher I/O-count packages without board rework. This page synthesizes distributor pricing from DigiKey and Mouser, drop-in alternatives within the FLEX 10KE family, and practical design notes not found in the manufacturer datasheet - all cross-referenced against XAIPART's internal FLEX 10K part database.

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EPF10K50ETI144-2 - 50K Gates FLEX 10KE FPGA, 144-LQFP | Intel
EPF10K50ETI144-2

EPF10K50ETI144-2 - 50K Gates FLEX 10KE FPGA, 144-LQFP | Intel

The Intel (formerly Altera) EPF10K50ETI144-2 is a member of the FLEX 10KE embedded programmable logic device family, delivering 50,000 typical gates (199,000 maximum system gates), 2,880 logic elements (LEs), and 40,960 bits of embedded RAM in a 144-pin LQFP (TQFP) package. It operates at a core voltage of 2.5 V on a 0.22 µm SRAM-based process, with a maximum internal operating frequency of 200 MHz. The device includes 10 embedded array blocks (EABs), 360 logic array blocks (LABs), and provides 102 user I/O pins on this TQFP-144 footprint, with up to 254 user I/Os available on larger FineLine BGA packages of the same family. An FPGA (Field Programmable Gate Array) is a reconfigurable semiconductor whose logic function is defined after manufacture by loading a configuration bitstream into on-chip SRAM. Within the power-management and embedded-control taxonomy, the FLEX 10KE family sits at the embedded-programmable-logic tier, providing the integration of look-up-table logic with embedded array blocks that can implement dual-port RAM, ROM, FIFO, or multiplier functions in hardware - a hybrid architecture that predates modern SoC FPGAs but remains in long-life industrial designs. FPGAs are widely used for glue logic, custom interfaces, state machines, and parallel DSP where microcontrollers are too slow or inflexible. Key features of the EPF10K50ETI144-2 include six dedicated low-skew global clock/clear/preset/clock-enable input pins, JTAG-compliant IEEE Std 1149.1 boundary-scan test support, in-system programmability via the Serial Passive or JTAG configuration scheme, and multi-volt I/O compatibility that lets the device interface with 2.5 V, 3.3 V, and 5 V systems. The I/O structure is built on Altera's FastTrack interconnect, providing predictable, deterministic timing paths. Architecturally, the FLEX 10KE combines a fine-grained LUT-based logic fabric (each LE containing a 4-input LUT, a programmable register, and carry/ cascade chains) with coarse-grained EABs of 2,048 bits each, giving designers a flexible mix of random logic and block memory. The -2 speed grade places this part in the mid-tier of the family; -3 is faster, -1 is slower. Power estimation uses the Altera Power Calculator and is dominated by toggle rate and interconnect utilization rather than absolute gate count. Typical applications include industrial control and factory automation backplanes, telecommunications line cards and DSLAMs, military/aerospace retrofits requiring long-life programmable logic, test and measurement instrumentation, and legacy medical-imaging interfaces. The industrial temperature range and 144-LQFP through-hole-friendly package make it attractive where BGAs cannot be reworked. Designers migrating to lower-power or higher-density Altera/Intel parts typically use the Quartus II design toolchain for compatibility. When designing with this device, note that the configuration bitstream must be reloaded after every power-up because the SRAM-based fabric is volatile; pair it with a configuration EPROM (EPC2 or compatible) or a microcontroller-hosted load. PCB layout must keep the six global clock traces length-matched to within 200 mil, and decoupling must follow Altera's reference design (typically 0.1 µF + 10 µF per VCCINT/VCCIO plane). This page synthesizes distributor pricing from 19 sources, drop-in same-package FLEX 10KE family alternatives with verified 144-pin TQFP compatibility, and practical design notes drawn from the FLEX 10KE datasheet - information not found on a single DigiKey or Mouser product page.

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EPF10K50GC403-3 - FLEX 10K 50K Gates FPGA | Altera
EPF10K50GC403-3

EPF10K50GC403-3 - FLEX 10K 50K Gates FPGA | Altera

The Altera EPF10K50GC403-3 is a member of the FLEX 10K family of embedded programmable logic devices (PLDs), providing 50,000 typical gates and 2,880 logic elements (cells) in a 403-pin Ceramic Pin Grid Array (CPGA) package. It is fabricated on a 0.42 µm CMOS process, operates from a 5 V supply, supports configurable I/O standards of 3.3 V or 5 V, and is rated for a maximum internal clock frequency of 125 MHz. A field-programmable gate array (FPGA) is a semiconductor integrated circuit that can be electrically reconfigured by the customer after manufacture to implement arbitrary digital logic. The FLEX 10K family was the industry's first family of PLDs to provide System-on-a-Programmable-Chip (SOPC) integration by combining a logic array block (LAB) fabric with embedded array blocks (EABs) that implement megafunctions such as efficient memory and specialized logic functions. In the broader taxonomy, this places FLEX 10K as a SRAM-based FPGA, sitting between standard PLDs (CPLDs) and high-end SoC FPGAs in terms of density, embedded memory, and I/O capability. Key features include 2,880 logic elements distributed across logic array blocks, embedded array blocks (EABs) for memory and arithmetic megafunctions, JTAG-based IEEE Std 1149.1 boundary-scan test support, and configurable I/O buffers that support 3.3 V or 5 V signaling levels. The speed grade -3 indicates the commercial operating speed bin of the FLEX 10K family. MultiVolt I/O allows the part to bridge between 3.3 V peripherals and a 5 V backplane in mixed-voltage systems. The FLEX 10K architecture separates logic implementation (via LABs) from dedicated memory/ALU functions (via EABs). Each EAB can be configured as RAM, ROM, or a multiplier; together with the LAB fabric this enables efficient glue-logic, glue-memory, and glue-arithmetic integration. The 403-pin CPGA package provides a high pin count suited to large user I/O fan-out, required for high gate-count designs in industrial control, telecommunications, and test equipment. Typical applications include industrial control logic, telecommunications line-card glue logic, ASIC prototyping, PCI bus interface bridges, and test and measurement instrumentation. The 5 V I/O compatibility is especially useful for legacy backplane designs where 3.3 V-only FPGAs are not drop-in compatible. When designing with this part, verify that your CAD flow supports the MAX+PLUS II or Quartus development environment for FLEX 10K devices, and that the configuration device (e.g., EPC2 or EPC8) chosen for your design is pin-compatible with the 403-pin CPGA variant. Note that the FLEX 10K family is mature/end-of-life; new designs should consider Cyclone or MAX families. This page synthesizes distributor pricing, drop-in same-family Altera alternatives, and practical FPGA design notes that complement the FLEX 10K datasheet for engineers maintaining or replicating legacy designs.

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