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EPF10K50VQC240-1 - FLEX 10K FPGA 50K Gates 240-PQFP | Altera
EPF10K50VQC240-1

EPF10K50VQC240-1 - FLEX 10K FPGA 50K Gates 240-PQFP | Altera

The Altera (Intel) EPF10K50VQC240-1 is a FLEX 10K family Field Programmable Gate Array (FPGA) integrating 50,000 typical gates, 2,880 logic cells, 360 logic array blocks, and 189 user I/Os in a 240-pin Power Quad Flat Pack (PQFP/BFQFP) package. Built on a 0.42 µm CMOS SRAM process, it supports 3.3 V core operation, offers a typical internal frequency of 66.67 MHz, and features 0.6 ns propagation delay for high-density glue-logic and data-path applications. An FPGA (Field Programmable Gate Array) is a semiconductor device built from an array of configurable logic blocks (CLBs), programmable interconnect, and I/O cells that engineers can re-program in the field to implement arbitrary digital logic. The FLEX 10K family belongs to the hierarchy of programmable logic devices: it sits above simple CPLDs and below modern SoC FPGAs, combining look-up-table (LUT) based logic with embedded array blocks (EABs) that act as on-chip RAM/ROM. FPGAs in this class are widely used as integration platforms, replacing dozens of discrete 74-series logic ICs while supporting in-system reconfiguration. Key features of the EPF10K50VQC240-1 include 20,480 typical gates with embedded array blocks for memory functions, 189 maximum user I/Os (240 PQFP variant), in-system programmability via SRAM configuration cells, JTAG boundary-scan support, and multi-volt I/O compatibility with 5.0 V, 3.3 V, and 2.5 V interfaces. The device supports asynchronous, synchronous, and high-speed clock distribution networks suitable for pipelined datapath designs. The FLEX 10K architecture combines a logic array of enhanced logic elements (ELEs) with embedded array blocks (EABs), allowing designers to mix distributed gate logic with on-chip memory or wide-function arithmetic. The VQC240-1 package is the 240-pin Power QFP variant with 189 usable I/O pins, optimized for board-level integration where high I/O count is required in a through-hole-friendly footprint. Typical applications for the EPF10K50VQC240-1 include industrial control glue logic, telecommunications line-card interfaces, legacy PCI bus bridges, prototyping platforms for ASIC emulation, and replacement of multiple 74-series TTL/CMOS glue-logic ICs. Designers also use it for bus interfacing, custom state-machine controllers, and educational digital-design platforms. When designing with the EPF10K50VQC240-1, note that the part requires a configuration EEPROM or JTAG programmer at every power-up because the SRAM-based configuration is volatile. Consider the 240-pin PQFP footprint for layout review - the -1 speed grade indicates the slowest timing bin; for higher performance choose -2 or -3 variants in the same family. This page synthesizes distributor pricing, FLEX 10K family drop-in alternatives, and practical design notes not found in the manufacturer datasheet, with sources drawn from DigiKey, Mouser, and Octopart.

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EPF10K50VQC240-1N - 50K-Gate FLEX-10K FPGA | Intel / Altera | 240-PQFP
EPF10K50VQC240-1N

EPF10K50VQC240-1N - 50K-Gate FLEX-10K FPGA | Intel / Altera | 240-PQFP

The Intel (formerly Altera) EPF10K50VQC240-1N is a member of the FLEX 10K family of Field Programmable Gate Arrays, providing 50,000 typical gates, 2,880 logic elements (logic cells), and 20,480 bits of embedded array memory in a 240-pin Plastic Quad Flat Pack (PQFP) package rated for commercial temperature (0C to 70C). It operates from a 3.0 V to 3.6 V supply and is the "-1" speed grade, characterized for a 250 MHz internal frequency. A Field Programmable Gate Array (FPGA) is a semiconductor integrated circuit built around an array of configurable logic blocks (CLBs), programmable interconnects, and I/O cells, allowing hardware designers to implement custom digital logic after fabrication. FPGAs sit in the broader taxonomy: programmable logic device (PLD) -> CPLD/FPGA -> reconfigurable logic -> digital IC -> semiconductor. The FLEX 10K family is the industry's first family to embed an array block (EAB) alongside the logic array, supporting System-on-a-Programmable-Chip (SOPC) integration that combines dedicated SRAM blocks with general-purpose logic. Key features include 360 Logic Array Blocks (LABs), 189 user I/Os, propagation delay of 0.6 ns, built-in low-skew clock distribution trees, FastTrack Interconnect continuous routing structure for predictable interconnect delays, tri-state emulation, and 100% functional testing of all devices. The "QC240" suffix denotes the 240-pin PQFP gull-wing package, while the "-1" indicates the speed grade and "N" indicates lead-free / Pb-free terminal finish. The architecture combines a fine-grained logic fabric with coarse-grained embedded array blocks (EABs) that can be configured as RAM, ROM, or programmable logic. This hybrid approach allows the EPF10K50VQC240-1N to replace up to 50K gates of glue logic plus small memory blocks in a single device, with predictable timing closure thanks to the continuous routing architecture. Typical applications include telecom interface glue logic, industrial control prototyping, PCI bridge logic, legacy 5 V/3.3 V system I/O expansion, ASIC prototyping, and educational development platforms. The 240-pin PQFP is hand-solderable and socket-compatible, making this part a popular choice for low-volume and legacy designs where surface-mount BGA rework would be impractical. When designing with this part, ensure your configuration device (EPC2, EPC8, or compatible) provides the correct bitstream and that JTAG chain termination matches IEEE 1149.1. Use Quartus II version 13.0 or earlier for legacy FLEX 10K support; current Quartus releases no longer target this family. This page synthesizes distributor stock, price tiering, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving an engineer a one-stop reference for the EPF10K50VQC240-1N.

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EPF10K50VQC240-2 - 50K Gate FLEX-10K FPGA, 240-BFQFP | Altera
EPF10K50VQC240-2

EPF10K50VQC240-2 - 50K Gate FLEX-10K FPGA, 240-BFQFP | Altera

The Altera (Intel) EPF10K50VQC240-2 is a member of the FLEX 10K family of SRAM-based Field-Programmable Gate Arrays (FPGAs) housed in a 240-pin BFQFP (also designated 240-PQFP / FQFP / QFP-240) gull-wing surface-mount package. It integrates 50,000 typical gates, 2,880 logic elements (Logic Array Blocks / LABs), 20,480 bits of embedded array memory, and 189 user I/O pins. The device is fabricated on a 0.42 micrometer CMOS process with four-layer metal interconnect, supports a 3.3 V core supply (with 5.0 V tolerant I/O via MultiVolt I/O), and operates at an internal frequency up to 125 MHz with 0.6 ns propagation delay. An FPGA (Field-Programmable Gate Array) is a semiconductor device containing an array of configurable logic blocks (CLBs / LABs), programmable interconnect, and I/O cells that can be re-programmed by the customer after manufacture to implement arbitrary digital logic. FPGAs sit between fixed-function ASICs and software-programmable processors: they offer hardware-level parallelism and deterministic timing without the NRE cost of an ASIC, while providing far higher logic density than discrete glue logic. The FLEX 10K family pioneered the concept of an Embedded Array Block (EAB), allowing on-chip implementation of RAM, ROM, FIFO, and multiplier functions alongside general-purpose logic. Key features of the EPF10K50VQC240-2 include MultiVolt I/O (supporting 5.0 V, 3.3 V, and 2.5 V interface voltages on the same die), 360 LABs arranged in rows and columns, a FastTrack continuous interconnect structure that delivers predictable interconnect delays, built-in low-skew clock distribution trees, JTAG (IEEE 1149.1) boundary-scan test support, and in-system configurability via the Altera serial configuration scheme. The device operates over the commercial 0 C to +70 C temperature range and supports 100 percent functional testing of all devices prior to shipment. Architecturally, the FLEX 10K fabric combines 100 percent interconnect-driven logic synthesis with embedded array blocks that can be configured as memory or wide-gate logic. The LUT-based logic elements deliver fast, deterministic timing suitable for state machines, datapath control, bus interfacing, and DSP pre/post-processing. The MultiVolt I/O ring supports mixed-voltage system designs (e.g., 5 V legacy peripherals alongside a 3.3 V processor) without external level shifters, simplifying board layout. Typical applications include telecommunications line cards, industrial control and factory automation controllers, glue-logic consolidation in networking equipment, ASIC prototyping, DSP co-processing front-ends, military and avionics subsystems, and legacy system sustainment where original ASICs are no longer available. The 240-BFQFP package also enables hand-rework and socketed prototyping for low-volume designs. When designing with this device, observe the FLEX 10K configuration scheme requirements: an external configuration EPROM (typically EPC2 or EPC1) or controller is required for SRAM-based configuration at power-up. Plan for a 3.3 V core / 5.0 V I/O power tree, in-rush limiting on VCCINT, and proper decoupling (0.1 uF per power pin plus bulk) to keep simultaneous-switching noise within the device's I/O specifications. This page synthesizes distributor pricing, drop-in same-brand and cross-brand alternatives sourced from the Site MPN catalog, and practical design notes drawn from the Altera FLEX 10K datasheet family - information not found on any single distributor product page.

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EPF10K50VQC240-2N - 50K Gates FLEX 10K FPGA 240-PQFP | Intel
EPF10K50VQC240-2N

EPF10K50VQC240-2N - 50K Gates FLEX 10K FPGA 240-PQFP | Intel

The Intel (formerly Altera) EPF10K50VQC240-2N is a member of the FLEX 10K family of Field Programmable Gate Arrays (FPGAs), delivering 50,000 typical gates, 2,880 logic elements (cells), and 189 user I/Os in a 240-pin Plastic Quad Flat Pack (PQFP / BFQFP, 32x32 mm) surface-mount package. It is built on a 0.42 µm CMOS SRAM process and operates from a 3.3 V supply with 5.0 V tolerant I/O, integrating an embedded array architecture that uniquely combines logic and dedicated memory blocks on a single die for System-on-a-Programmable-Chip (SOPC) implementations. What is an FPGA? An FPGA (Field Programmable Gate Array) is a type of programmable logic device (PLD) containing an array of configurable logic blocks (CLBs), programmable interconnect, and I/O cells that the designer configures after manufacture. FPGAs sit above CPLDs in the programmable logic hierarchy and are used to implement arbitrary digital logic, DSP pipelines, glue logic, bus interfaces, and full soft processor cores. The FLEX 10K family was the industry's first device to embed an array block alongside the logic array, enabling true SOPC integration where memory and logic coexist on one programmable fabric. Key features of this device include 360 Logic Array Blocks (LABs), 20,480 typical RAM bits, built-in low-skew clock distribution trees, fast and predictable FastTrack Interconnect continuous routing, JTAG boundary-scan support, and tri-state emulation. The internal maximum frequency is 125 MHz and the propagation delay is approximately 0.6 ns. It is the commercial temperature grade variant, specified for 0 °C to 70 °C operation with a -2 speed grade. Technically, the FLEX 10K architecture is implemented with SRAM configuration memory, allowing unlimited re-programmability in-system through the ByteBlaster or BitBlaster configuration interfaces. The embedded array blocks (EABs) provide true dual-port RAM, ROM, and multiplier functions, while the LABs each contain eight logic elements. This makes the EPF10K50VQC240-2N suitable for telecommunications, industrial control, consumer electronics, and legacy digital system retrofits where mid-density programmable logic is required. Typical applications include telecom line cards, motor and motion control, factory automation backplanes, networking glue logic, and ASIC prototyping. For replacement scenarios, this part is pin-compatible with other EPF10K50VQC240 speed grades (-1, -3) and the VQC240 family in general. Design with 3.0 V to 3.6 V core supply, ensure JTAG chain integrity, and follow Altera AN 116 configuration guidelines.

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EPF10K50VQC240-3 - 50K Gate FLEX 10K FPGA, 240-PQFP | Intel / Altera
EPF10K50VQC240-3

EPF10K50VQC240-3 - 50K Gate FLEX 10K FPGA, 240-PQFP | Intel / Altera

The Intel / Altera EPF10K50VQC240-3 is a member of the FLEX 10K family of Field Programmable Gate Arrays (FPGAs), integrating 50,000 typical gates, 2,880 logic cells, and 360 logic array blocks (LABs) in a 240-pin Plastic Quad Flat Pack (PQFP) package with 189 user I/O pins. It is fabricated on a 0.42 µm CMOS process and operates from a 3.3 V core supply, with a typical internal frequency capability up to 125 MHz and pin-to-pin propagation delay of approximately 0.6 ns. An FPGA (Field Programmable Gate Array) is a semiconductor device built around an array of configurable logic blocks (CLBs), embedded memory arrays, and programmable interconnect, allowing hardware designers to implement custom digital logic without the cost and lead time of ASIC fabrication. The FLEX 10K family specifically pioneered the embedded array block (EAB) architecture, combining look-up-table logic with on-chip RAM/ROM blocks to enable System-on-a-Programmable-Chip (SOPC) designs that integrate memory and logic on a single die. Within the broader taxonomy, an FPGA sits above CPLDs and below ASICs in design flexibility and density. Key features of the EPF10K50VQC240-3 include 189 programmable I/Os supporting multiple I/O standards, 360 LABs with fast interconnect, built-in low-skew clock distribution trees, FastTrack Interconnect for predictable timing closure, and tri-state emulation for bus-oriented designs. The device supports 100% functional testing before shipment, in-system programmability via SRAM configuration cells, and JTAG boundary-scan support. The -3 speed grade positions this part in the mid-speed tier of the FLEX 10K lineup, trading maximum Fmax for a more accessible price point. Typical applications span telecommunications line cards, industrial control and instrumentation, glue logic replacement, custom interface bridging (PCI, ISA, proprietary buses), and legacy system upgrades where a programmable solution is needed to consolidate discrete logic. The 189 I/O count makes it suitable for mid-density bus-oriented designs. When designing with this part, ensure your configuration memory interface (EPC configuration device or microcontroller) is compatible with the 3.3 V VCCINT supply and that the Quartus II / MAX+PLUS II toolchain is selected, as this FLEX 10K device is in the mature Altera legacy flow. The EPF10K50VQC240-3 is widely available in the distribution channel but should be considered for legacy maintenance designs given its NRND/EOL trajectory; long-term availability should be verified before new design-in. This page synthesizes distributor pricing, drop-in alternatives from the same FLEX 10K family, and practical design notes not found in the manufacturer datasheet.

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EPF10K50VQC240-3N - FLEX 10K 50K Gates FPGA | Intel / Altera
EPF10K50VQC240-3N

EPF10K50VQC240-3N - FLEX 10K 50K Gates FPGA | Intel / Altera

The Intel (formerly Altera) EPF10K50VQC240-3N is a FLEX 10K family Field Programmable Gate Array (FPGA) with 50,000 system gates, 2,880 logic cells, 360 LABs/CLBs, and 189 user I/Os, housed in a 240-pin Power Quad Flat Pack (PQFP/BFQFP) package. It is fabricated on a 0.42 µm CMOS process and operates from a 3.3 V supply at up to 125 MHz internal frequency. The '-3' speed grade delivers commercial-temperature (0 °C to 70 °C) timing with a propagation delay in the sub-nanosecond range typical of the FLEX 10K embedded array block family. An FPGA (Field Programmable Gate Array) is a semiconductor device built from an array of configurable logic elements (LEs), programmable interconnect, and I/O blocks that the user defines after manufacture via a hardware description language (HDL) or schematic capture. The FLEX 10K family was the industry's first family to embed large SRAM-style logic blocks together with dedicated Embedded Array Blocks (EABs), enabling on-chip implementation of megafunctions such as RAM, ROM, and arithmetic units, and it is widely considered the predecessor of modern System-on-Programmable-Chip (SOPC) architectures. The EPF10K50VQC240-3N belongs to the high-density FLEX 10K tier (10K50), differentiating it from lower-density siblings such as the EPF10K10 and EPF10K30. Key differentiating features include: 20,480 typical gate count, integrated EABs for on-chip memory, in-system programmability via the Serial Configuration (Passive) or Active serial modes supported by the FLEX 10K architecture, multi-voltage I/O compatibility with 5.0 V, 3.3 V, and 2.5 V signalling, and JTAG-compliant boundary-scan test per IEEE 1149.1. The device integrates seamlessly with the legacy MAX+PLUS II and Quartus design tool flows, preserving design IP across older Altera ecosystems. Technically, the EPF10K50VQC240-3N uses SRAM configuration cells and requires external configuration memory on every power-up. Its configurable logic blocks (CLBs) feed into Embedded Array Blocks (EABs) that deliver up to 2,048 bits of dual-port RAM per block, while the high-pin-count PQFP240 footprint exposes ample general-purpose I/O for parallel bus and memory interfaces. Typical applications include legacy telecom interface cards, industrial control and factory automation controllers, glue-logic replacement, mid-speed DSP co-processing, and PCI/ISA bus interface prototyping. Engineers commonly select this part to extend the lifecycle of older Altera designs without performing full re-qualification. When designing with this device, ensure that configuration memory and JTAG pull-up resistors are placed within 5 cm of the device to meet the configuration timing specifications. Designers should also verify that I/O signalling levels match the chosen I/O standard (3.3 V LVTTL/LVCMOS by default) and provide a clean 3.3 V core supply with adequate decoupling. Because this part is in the legacy FLEX 10K family, lead-time and lifecycle risks should be reviewed against the Intel Product Discontinuance Program notice before NPI qualification. This page synthesises distributor pricing, same-family drop-in alternatives, and practical design notes that go beyond the manufacturer's PDF datasheet alone, giving engineers and buyers a single authoritative reference for the EPF10K50VQC240-3N.

USD $49.95 문의하기
EPF10K50VQI240-2 - FLEX 10K 50K-Gate FPGA, 189 I/O, PQFP-240 | Altera
EPF10K50VQI240-2

EPF10K50VQI240-2 - FLEX 10K 50K-Gate FPGA, 189 I/O, PQFP-240 | Altera

The Altera (now Intel) EPF10K50VQI240-2 is a member of the FLEX 10K family of SRAM-based Field-Programmable Gate Arrays built on a 0.42 µm CMOS process, integrating approximately 50,000 typical gates, 2,880 logic elements (LEs), and 360 Logic Array Blocks (LABs) in a 240-pin Plastic Quad Flat Pack (PQFP / BFQFP-240) package with gull-wing leads. It operates from a 3.3 V core supply with an industrial temperature range of 0 °C to +70 °C and delivers up to 125 MHz internal operation with a 0.6 ns propagation delay at the -2 speed grade, making it a long-established solution for glue logic, bus interfacing, and moderate-complexity state-machine designs. A Field-Programmable Gate Array (FPGA) is a semiconductor integrated circuit containing an array of configurable logic blocks (CLBs/LEs), programmable interconnect, and I/O cells that the designer programs after manufacture using a hardware-description language such as VHDL or Verilog. FPGAs occupy a position between fixed-function ASICs (lowest unit cost at high volume, longest non-recurring engineering cost) and CPLDs (predictable timing, lower density) in the programmable-logic taxonomy, and the FLEX 10K family was Altera's first to embed dedicated Embedded Array Blocks (EABs) for on-chip RAM and DSP-style functions - the architectural precursor to modern System-on-Chip FPGAs. Key features of the EPF10K50VQI240-2 include 189 maximum user I/O pins, 20,480 bits of embedded memory distributed across the EAB array, built-in JTAG (IEEE 1149.1) boundary-scan support, and multi-volt I/O capability for interfacing with 5.0 V, 3.3 V, and 2.5 V devices. The 240-pin PQFP with gull-wing leads is a surface-mount package with a 0.5 mm pin pitch on a 32 × 32 mm body, well-suited to prototype boards and legacy production runs but larger than modern BGA equivalents. The FLEX 10K architecture pairs a fine-grained LE fabric with coarse-grained Embedded Array Blocks (EABs) used as synchronous RAM, ROM, or arithmetic functions. Each LAB contains eight LEs plus local carry and cascade chains, and the chip-wide FastTrack interconnect routes signals between LABs and I/O elements, allowing designers to map both datapath (LUT-based) and memory-intensive (EAB-based) functions on the same die. Typical applications include industrial control boards, telecom interface cards, glue logic between microprocessors and peripherals, legacy PCI bus bridges, and test-and-measurement backplanes where the 3.3 V core and 5 V-tolerant I/O simplify mixed-voltage designs. The -2 speed grade offers a balance between timing margin and cost compared to the faster -3 and slower -1 grades in the same family. When designing with this part, pay attention to the 3.3 V supply-rail decoupling and keep the configuration EEPROM (EPC2 or EPC16) within the Fast Passive Parallel (FPP) or Passive Serial (PS) configuration interface budget. Designers porting older FLEX 10K designs to current production should plan for migration to MAX II, Cyclone, or Lattice MachXO2/XO3 families. This page synthesizes verified distributor inventory, same-brand FLEX 10K drop-in alternatives, and practical design notes not consolidated in the manufacturer datasheet.

USD $10.40 문의하기
EPF10K50VQI240-2N - FLEX 10K 50K-Gate FPGA, 240-PQFP, Industrial | Altera
EPF10K50VQI240-2N

EPF10K50VQI240-2N - FLEX 10K 50K-Gate FPGA, 240-PQFP, Industrial | Altera

The Altera (now Intel) EPF10K50VQI240-2N is a member of the FLEX 10K family of Field-Programmable Gate Arrays (FPGAs), integrating 50,000 typical gates, 2,880 logic cells (logic elements), 360 LABs, and 189 user I/Os in a 240-pin Plastic Quad Flat Pack (PQFP / BFQFP) surface-mount package. It operates from a 5V core supply, supports a maximum internal frequency of 125 MHz, and is rated for industrial temperature operation (-40C to +85C ambient for the I-suffix grade). An FPGA (Field-Programmable Gate Array) is a type of programmable logic device (PLD) that allows designers to configure custom digital logic functions after PCB assembly. FPGAs sit within the broader semiconductor hierarchy as integrated circuits -> programmable logic devices -> FPGAs, complementing CPLDs (which target simpler glue logic) and ASICs (which trade programmability for cost and power at high volume). The FLEX 10K family, introduced by Altera in the mid-1990s, was notable for being the first PLD family to integrate dedicated memory blocks (EABs - Embedded Array Blocks), enabling System-on-a-Programmable-Chip (SOPC) designs with on-chip RAM, ROM, and FIFO functions. Key features include embedded array blocks (EABs) for implementing megafunctions like efficient memory and specialized logic, 20,480 typical RAM bits distributed across the EABs, multiVolt I/O support for interfacing with 5V, 3.3V, and 2.5V logic, in-system programmability via the serial configuration EPROM interface, and full PCI 2.2 compliance for plug-and-play peripheral designs. The 240-BFQFP (gull-wing) package is a through-hole-compatible surface-mount form factor, which simplifies prototyping on adapter boards and rework in legacy systems. From an architectural perspective, the FLEX 10K family uses a fine-grained, SRAM-based look-up-table (LUT) fabric with continuous, fast interconnect between Logic Array Blocks (LABs) and Embedded Array Blocks (EABs). The 'V' in the part number denotes 5V operation (vs. 'A' for 3.3V ACEX/3V FLEX 10KA variants), 'Q' indicates the PQFP package, 'I' specifies industrial temperature range, '240' is the pin count, and '-2N' is the speed grade (toggled against -1, -3, -4 grades). Typical applications include legacy industrial glue logic replacement, PCI bus interface controllers, telecommunications backplane glue logic, prototyping bridges to ASIC designs, and migration paths for obsolete 5V programmable logic. Its 5V tolerance and large gate count make it a common drop-in for systems originally designed around the FLEX 10K platform. When designing with this device, plan for an SRAM-based configuration memory that must be loaded at every power-up from a serial EPROM (EPC1, EPC2, or compatible). Modern Intel Quartus Prime no longer supports FLEX 10K as a new target; engineers maintaining legacy FLEX 10K designs typically use the legacy MAX+PLUS II toolchain. Ensure the 5V supply is well-decoupled near the VCCINT and VCCIO pins and that JTAG pins TCK/TMS/TDO/TDI are correctly terminated for boundary-scan test. This page synthesizes distributor pricing, same-brand and cross-brand drop-in alternatives, and practical design notes not found in the original Altera datasheet - useful for engineers maintaining or modernizing FLEX 10K-based systems in long-lifecycle industrial, telecom, and military programs.

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EPF10K50VR1240-4 - 50K FLEX 10K FPGA, 240-Pin BFQFP | Altera
EPF10K50VR1240-4

EPF10K50VR1240-4 - 50K FLEX 10K FPGA, 240-Pin BFQFP | Altera

The Altera EPF10K50VR1240-4 is a member of the FLEX 10K Embedded Programmable Logic Device family, delivering approximately 50,000 typical gates in a 240-ball Fine-pitch Ball Grid Array (BFQFP) package with speed grade -4. It is one of the earliest SRAM-based FPGAs to integrate embedded array blocks (EABs), enabling on-chip memory and logic multipliers alongside general-purpose logic elements. An FPGA (Field-Programmable Gate Array) is a programmable logic device that allows engineers to implement custom digital circuits by configuring an array of configurable logic blocks (CLBs), interconnect, and I/O cells. FPGAs belong to the larger hierarchy of programmable logic devices -> logic ICs -> integrated circuits -> semiconductors. The FLEX 10K family was Altera's first to embed array blocks, a predecessor of modern FPGA embedded Block RAM. Key features include roughly 2,880 logic elements (per the DigiKey listing of the related I240 variant), 20,480 typical gates, dedicated embedded array blocks for memory, 5V-tolerant I/O on the V-series, and JTAG-based in-system programmability via the ByteBlaster or BitBlaster cable. The architecture supports asynchronous and synchronous RAM and ROM, multipliers via lookup tables, and cascaded EABs for wide memory functions. The EPF10K50VR1240-4 is fabricated on a 0.42 µm CMOS SRAM process and operates from a 5V core supply with 5V/3.3V multi-voltage I/O. The 240-pin BFQFP package exposes approximately 189 user I/O pins, sufficient for glue logic, bus interfacing, and moderate-density state-machine replacement in legacy industrial designs. Typical applications include industrial control and instrumentation, glue logic replacement, telecommunications backplane interfacing, prototyping of ASIC designs, and embedded control planes where moderate logic density, deterministic timing, and 5V tolerance outweigh the need for modern high-speed transceivers. Designers should treat the -4 speed grade as the slowest in the FLEX 10K V-series; pin-compatible -3, -2, and -1 variants yield faster timing closure. A 0.1 µF decoupling cap per VCC pin plus a bulk cap near the package are essential for SRAM configuration-supply noise margin. This page consolidates distributor pricing, parametric comparisons against speed-grade and package variants, and practical design notes for the FLEX 10K family not found in the standalone datasheet.

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EPF10K50VRC240-1 - 50K FLEX 10K FPGA, 240-RQFP, 66MHz | Intel
EPF10K50VRC240-1

EPF10K50VRC240-1 - 50K FLEX 10K FPGA, 240-RQFP, 66MHz | Intel

The Intel EPF10K50VRC240-1 is a member of the FLEX 10K family of SRAM-lookup-table-based Field Programmable Gate Arrays, delivering 50,000 typical gates and 2,880 logic elements in a 240-pin RQFP (PQFP with exposed pad) commercial-grade package. It supports up to 274 user I/O, operates from a 3.3 V core supply with MultiVolt I/O compatibility, and targets embedded programmable-logic applications at internal frequencies around 66 MHz. A Field Programmable Gate Array (FPGA) is a programmable-logic device (PLD) whose architecture combines a dense array of configurable logic blocks (LEs), a programmable routing fabric, and embedded memory. FPGAs occupy the middle ground between fixed-function ASICs and small CPLDs - they offer higher gate counts and richer I/O than CPLDs while remaining reprogrammable, unlike ASICs. The FLEX 10K series was the industry's first family to embed an array of SRAM blocks alongside logic, enabling System-on-a-Programmable-Chip (SOPC) designs where a CPU core, memory, and glue logic coexist on a single device. Key specifications include 2,880 logic elements, 20,480 typical gates, 189 Kbits of embedded SRAM, 240 user I/O, an internal clock frequency up to 66.67 MHz, 0.6 ns propagation delay, and 0.42 µm CMOS process technology. The device also features JTAG boundary-scan test (IEEE 1149.1-1990) support, programmable PCI clamping diodes, slew-rate control, and open-drain output options configured pin-by-pin via the Altera MAX+PLUS II / Quartus design software. The MultiVolt I/O interface separates VCCINT (core supply) from VCCIO (I/O supply), so 5 V-tolerant I/O can be driven from a 3.3 V core - critical when bridging legacy peripherals. The exposed thermal pad on the RQFP-240 package improves heat dissipation for high-utilization designs. Configuration is supported through JTAG, the BitBlaster serial cable, the ByteBlasterMV parallel cable, or the Jam STAPL programming and test language, allowing board-level flexibility. Typical applications include telecommunications glue logic, PCI bridge designs, industrial-control state machines, embedded-protocol bridges, and pre-production ASIC prototyping. The commercial 0-70 °C temperature grade makes it well-suited for indoor enclosures, laboratory instrumentation, and development platforms. When designing with this device, ensure the Quartus MAX+PLUS II toolchain supports the FLEX 10K device family - modern Quartus releases support legacy FLEX devices for compilation. Always confirm supply rails (VCCINT and VCCIO) are decoupled with bulk + ceramic capacitors placed close to the package pins, and respect the exposed-pad soldering guidelines. This page synthesizes distributor pricing, drop-in FLEX 10K alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single decision-making reference for legacy Altera FLEX 10K FPGA designs.

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EPF10K50VRC240-1N - FLEX 10K 50K-Gate FPGA, 189 I/O | Intel
EPF10K50VRC240-1N

EPF10K50VRC240-1N - FLEX 10K 50K-Gate FPGA, 189 I/O | Intel

The Intel (formerly Altera) EPF10K50VRC240-1N is a FLEX 10K family Field-Programmable Gate Array (FPGA) delivering 50,000 typical gates, 2,880 logic elements, and 189 user I/Os in a 240-pin Power QFP (BFQFP) package with exposed thermal pad. According to manufacturer and distributor listings, the device is built on a 0.42 µm CMOS process, supports an internal core frequency up to 66.67 MHz, and uses a 3.3 V core supply. It belongs to the industry's first embedded programmable logic device (PLD) family, providing System-on-a-Programmable-Chip (SOPC) integration via its embedded array block architecture. What is an FPGA? A Field-Programmable Gate Array is a semiconductor IC composed of configurable logic blocks (CLBs), programmable interconnect, and I/O cells that engineers can re-program in the field to implement arbitrary digital functions. FPGAs sit above microcontrollers, DSPs, and ASICs in the design flexibility hierarchy: they are slower per gate than ASICs but offer parallel processing, rapid prototyping, and hardware-level reconfigurability that microcontrollers cannot match. The FLEX 10K family pioneered the embedded array block (EAB), which allows on-chip implementation of RAM, ROM, and arithmetic functions alongside the general-purpose logic array. Key features of the EPF10K50VRC240-1N include 20,480 typical logic gates, 360 Logic Array Blocks (LABs), 2,880 logic cells (per DigiKey listing), embedded array blocks (EABs) for memory functions, in-system programmability (ISP) via the serial configuration interface, multi-volt I/O support, and JTAG boundary-scan test per IEEE Std 1149.1. The 'V' in the part number denotes 3.3 V operation, the 'RC240' identifies the 240-pin Power QFP package with exposed pad, the '1' indicates the speed grade, and 'N' indicates a lead-free commercial-temperature version. From an architecture standpoint, the FLEX 10K device integrates continuous interconnect structures (FastTrack) with an array of LABs and EABs, allowing designers to combine wide logic functions with on-chip memory in a single die. The exposed pad on the BFQFP package provides a low-thermal-resistance path for heat dissipation, which is critical at 250 MHz internal operation and 66.67 MHz system performance. Typical applications for the EPF10K50VRC240-1N include communications glue logic, industrial control state machines, PCI bus interfaces, DSP co-processing, prototyping of ASIC designs, and embedded system-on-chip integration. It is also used in legacy telecom infrastructure where the FLEX 10K architecture has long been deployed. When designing with this device, ensure proper decoupling (typically 0.1 µF and 10 µF capacitors near each power pin) and thermal relief through the exposed pad to a sufficient copper pour. Designers should also budget configuration time and choose between serial or parallel configuration modes via the Quartus or MAX+PLUS II design tools. This page synthesizes distributor pricing, drop-in FLEX 10K alternatives, and practical design notes not found in the manufacturer datasheet alone.

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EPF10K50VRC240-2 - Flex 10K FPGA, 50K Gates, 240-RQFP | Intel
EPF10K50VRC240-2

EPF10K50VRC240-2 - Flex 10K FPGA, 50K Gates, 240-RQFP | Intel

The Intel (formerly Altera) EPF10K50VRC240-2 is a Flex 10K family Field-Programmable Gate Array (FPGA) IC with 50,000 typical gates, 2,880 logic cells, 360 Logic Array Blocks (LABs), and 189 user I/Os, packaged in a 240-pin RQFP (also described as HFQFP/BQFP with exposed pad). The device operates from a 3.3 V core supply and uses a 0.42 µm CMOS process technology with 5-level metal interconnect. A Field-Programmable Gate Array (FPGA) is a type of programmable logic device (PLD) that contains an array of configurable logic blocks (CLBs/LABs) connected through programmable interconnect, allowing hardware designers to implement custom digital logic that can be reconfigured after manufacturing. FPGAs sit at the top of the programmable logic hierarchy: PLD -> CPLD -> FPGA -> System-on-Chip FPGA. The Flex 10K series introduced embedded array blocks (EABs) for System-on-a-Programmable-Chip (SOPC) integration, combining lookup-table based logic with on-chip RAM. Key features of the EPF10K50VRC240-2 include 20,480 typical logic elements, a maximum internal frequency of approximately 125 MHz (66.67 MHz in some datasheet graphs), a propagation delay of 0.6 ns, and embedded array blocks for memory implementation. The -2 speed grade identifies a mid-range performance bin within the Flex 10K family. The device is graded for commercial operating temperature (0 °C to +70 °C) and ships in surface-mount gull-wing RQFP-240. Architecturally, the Flex 10K combines a fine-grained logic fabric (LABs built from 8 logic elements each) with coarse-grained Embedded Array Blocks (EABs), enabling dense on-chip RAM and product-term logic. The 3.3 V core, 0.42 µm process, and SRAM-based configuration make the part volatile (configuration must be loaded at every power-up from a serial or parallel PROM). Typical applications include glue logic and bus interfaces in telecommunications backplanes, industrial control and instrumentation, prototyping of ASIC-equivalent designs, embedded control in test equipment, and legacy system upgrades where the Flex 10K is already qualified. Designers continue to use EPF10K50VRC240-2 in maintenance and low-volume production of mature platforms. When designing with this part, plan for external configuration memory (an EPC1/EPC2 configuration PROM, or a microcontroller) because SRAM configuration cells lose their contents on power-down. Provide proper decoupling on every VCCINT/VCCIO pin and observe I/O banking rules for mixed-voltage interfaces. This page synthesizes distributor pricing, drop-in alternative MPNs from the same Flex 10K family, and practical design notes that go beyond the manufacturer datasheet's tables.

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EPF10K50VRC240-2N - 50K-Gate FLEX 10K FPGA, 240-RQFP | Intel
EPF10K50VRC240-2N

EPF10K50VRC240-2N - 50K-Gate FLEX 10K FPGA, 240-RQFP | Intel

The Intel EPF10K50VRC240-2N is a member of the FLEX 10K family of field-programmable gate arrays (FPGAs), delivering 50,000 typical gates, 2,880 logic elements/cells, and 360 logic array blocks (LABs) in a 240-pin RQFP (BFQFP with exposed pad) package. Operating from a 3.3 V supply with a 0.42 µm CMOS process and a maximum internal frequency of 125 MHz, this device targets commercial-temperature digital logic designs that need mid-range density, embedded array blocks (EABs) for RAM/ROM, and 189 user I/Os. The "V" suffix denotes the 3.3 V core supply variant, "RC" indicates the RQFP package, "240" is the pin count, "-2" is the speed grade, and the trailing "N" marks lead-free / Pb-free assembly. An FPGA (Field-Programmable Gate Array) is a programmable logic device that lets engineers implement arbitrary digital logic - combinational gates, flip-flops, state machines, and memory blocks - by downloading a configuration bitstream after the IC is soldered onto the board. The FLEX 10K series was Intel/Altera's first generation to embed array blocks (EABs) for on-chip dual-port RAM, marking the industry's first System-on-a-Programmable-Chip (SOPC) integration. FPGAs sit hierarchically under programmable logic devices (PLDs), complex programmable logic devices (CPLDs), and finally the broader semiconductor / integrated circuit taxonomy. Key features include 50,000 system gates, 20,480 flip-flop-based register bits, 2,880 logic elements, a maximum propagation delay of approximately 0.6 ns (66.67 MHz internal timing reference), 189 programmable I/O pins, four embedded array blocks (EABs) for distributed SRAM, JTAG-based IEEE 1149.1 boundary-scan testing, in-system programmability (ISP) via the serial passive configuration scheme, multi-volt I/O support (3.3 V core, 5.0 V-tolerant I/O), and a commercial 0 °C to 70 °C operating range. The exposed pad on the 240-RQFP package improves thermal dissipation during continuous logic switching. The FLEX 10K architecture uses a row/column-based logic array, with each LAB containing eight logic elements (LEs), each LE built around a 4-input look-up table (LUT) plus a programmable flip-flop. EABs provide up to 2 Kbits of dual-port RAM each, allowing on-chip FIFOs, lookup tables, and small scratch-pad memories without external SRAM. Configuration is loaded from a serial EPROM or via the ByteBlaster / JTAG download cable in development flows, and the bitstream is held in SRAM cells so the device is re-programmable in the field an unlimited number of times. Typical applications include custom glue logic in industrial control boards, PCI bridge and bus-interface controllers, telecommunications channel cards, prototyping of ASIC designs before mask production, DSP pre/post-processing pipelines, image processing front-ends, and embedded control subsystems. With 50K gates of usable logic, the EPF10K50VRC240-2N is well-suited to designs that need more capacity than a 10K30 device but do not yet justify the silicon cost of a 10K100 or 10K130. When designing with the EPF10K50VRC240-2N, use the Quartus II (legacy) or MAX+PLUS II toolchain for synthesis, fitting, simulation, and programming file generation. Ensure clean 3.3 V core and I/O rail decoupling, observe the configuration mode wiring (MSEL pins), and respect JTAG chain order if multiple devices share the same boundary-scan bus. Because this device is in the legacy FLEX 10K family, plan for end-of-life (EOL) sourcing via franchised distributors or authorised aftermarket inventory. This page synthesises franchised distributor pricing, same-package FLEX 10K drop-in alternatives, and practical design notes not consolidated in the legacy Altera datasheet.

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EPF10K50VRC240-3 - 50K Gate Flex 10K FPGA, 189 I/O, 240-RQFP | Intel / Altera
EPF10K50VRC240-3

EPF10K50VRC240-3 - 50K Gate Flex 10K FPGA, 189 I/O, 240-RQFP | Intel / Altera

The Intel / Altera EPF10K50VRC240-3 is a member of the classic Flex 10K FPGA family, delivering 50,000 typical gates and 2,880 logic elements in a 240-pin RQFP (BFQFP with exposed pad) package. It is built on a SRAM-based CMOS process and provides 189 user I/Os, 20,480 bits of embedded memory, and supports an internal frequency up to 66.67 MHz with up to 125 MHz performance grades. An FPGA (Field Programmable Gate Array) is a reprogrammable semiconductor device that allows engineers to implement custom digital logic via a configuration bitstream stored in SRAM. The Flex 10K family, launched in the late 1990s, was the industry's first family to embed an array of logic alongside dedicated memory blocks (EABs, Embedded Array Blocks), pioneering the System-on-a-Programmable-Chip (SOPC) concept. FPGAs sit hierarchically within the broader categories of programmable logic devices (PLDs) and digital integrated circuits. Key features of the EPF10K50VRC240-3 include 360 Logic Array Blocks (LABs) with embedded array blocks for distributed dual-port RAM and ROM, four phase-locked loops (PLLs) for clock management, programmable interconnect, and multi-voltage I/O supporting PCI, LVTTL, LVCMOS, and other standards. The 240-pin RQFP package with exposed pad supports both commercial (0°C to 70°C) and industrial temperature grades. Technically, the EPF10K50VRC240-3 uses a 0.42 µm CMOS SRAM process and a 3.3V core supply with 5V-tolerant I/O. The architecture combines 2,880 logic elements organized into 360 LABs, each containing 8 logic elements, and 20 embedded array blocks providing up to 20 Kbits of dual-port RAM. The device supports in-system programmability (ISP) via the IEEE 1149.1 JTAG boundary-scan interface and serial configuration, allowing field upgrades. Typical applications include legacy telecom interface cards, industrial control logic, glue logic replacement, and embedded DSP prototyping. Designers often select the EPF10K50VRC240-3 to maintain long-life-cycle industrial or aerospace systems where the original Flex 10K design is already deployed. When designing with the EPF10K50VRC240-3, ensure proper decoupling of all VCCINT and VCCIO pins with 0.1 µF and 10 µF capacitors placed close to the package. The exposed thermal pad must be soldered to a ground plane for mechanical stability and improved thermal performance. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the original manufacturer datasheet, helping engineers evaluating the EPF10K50VRC240-3 for new designs or legacy maintenance.

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EPF10K50VRC240-3N - 50K-Gate FLEX 10K FPGA, 189 I/O, 240-RQFP | Intel
EPF10K50VRC240-3N

EPF10K50VRC240-3N - 50K-Gate FLEX 10K FPGA, 189 I/O, 240-RQFP | Intel

The Intel (formerly Altera) EPF10K50VRC240-3N is a member of the FLEX 10K family of Field Programmable Gate Arrays (FPGAs) housed in a 240-pin RQFP (Power Quad Flat Pack) package with exposed thermal pad. Built on a 0.42 µm CMOS SRAM-based process, this device integrates 50,000 typical gates, 2,880 logic cells (logic elements), 20,480 bits of embedded array memory (EAB), and 360 Logic Array Blocks (LABs), providing 189 usable I/O pins across the package. According to manufacturer datasheet data, the part operates from a 3.3 V core supply, supports internal frequencies up to 125 MHz, and is qualified for the commercial 0 °C to +70 °C temperature range. What is a FLEX 10K FPGA? The FLEX 10K family was one of the industry's first embedded programmable logic device families, providing System-on-a-Programmable-Chip (SOPC) integration. It combines a fine-grained Logic Element (LE) fabric with coarse-grained Embedded Array Blocks (EABs) that can be configured as RAM, ROM, or multiplier blocks. As an SRAM-based PLD, the FLEX 10K sits within the broader hierarchy: programmable logic device -> PLD -> FPGA -> SRAM-based FPGA -> embedded-array FPGA -> FLEX 10K family. The 'V' suffix in the package code denotes the 240-RQFP option, and the speed grade '-3' places it in the mid-tier of FLEX 10K performance bins. Key differentiating features of the EPF10K50VRC240-3N include its 189 available user I/Os, the high-density 360-LAB fabric that allows efficient state-machine and datapath partitioning, 0.42 µm CMOS process for low static power, and propagation delay figures consistent with a -3 speed grade at 0.6 ns internal. Each EAB provides 2,048 bits of memory that can be cascaded to form FIFOs, ROM look-up tables, or DSP multiplier blocks. The device is in-system programmable through the Altera/Quartus ByteBlaster or compatible JTAG-style configuration paths. Architecturally, the FLEX 10K combines a sea-of-LEs routing fabric with embedded array blocks arranged in columns. Configuration is stored in SRAM cells, meaning the device must be reconfigured on every power-up - the configuration bitstream is typically loaded from a serial PROM. The 'RC240' package suffix identifies the 240-pin Power QFP with exposed thermal pad for improved heat dissipation at high toggle rates. Typical applications include industrial glue logic replacement, communications protocol bridging, and legacy ASIC prototyping. Engineers select this part when migrating older Altera designs to a known-stable platform, or when the specific I/O count and LAB density match an existing PCB layout. The 240-RQFP package is also well-suited to designs where fine-pitch BGA rework tools are not available, since QFP leads are easier to inspect and rework with conventional soldering equipment. When designing with this part, observe the 3.3 V I/O and core supply requirements and use the Quartus II design software (or compatible legacy tools) for synthesis, place-and-route, and timing closure. Confirm whether active inventory is needed or whether the legacy part can be replaced with a newer Cyclone device - the FLEX 10K family has been superseded by Intel's Cyclone and MAX families for new designs.

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EPF10K50VRC240-4 - 50K Gate FLEX-10K FPGA, 240-Pin RQFP | Altera / Intel
EPF10K50VRC240-4

EPF10K50VRC240-4 - 50K Gate FLEX-10K FPGA, 240-Pin RQFP | Altera / Intel

The Altera / Intel EPF10K50VRC240-4 is a member of the FLEX-10K family of Field Programmable Gate Arrays (FPGAs) featuring 50,000 typical gates, 2,880 logic elements (LEs), 360 Logic Array Blocks (LABs), and 189 user I/Os in a 240-pin RQFP package with exposed pad. It operates from a 3.3 V core supply and is rated commercial temperature grade 0C to +70C, with internal frequency performance up to 125 MHz in the -4 speed grade. A Field Programmable Gate Array (FPGA) is a semiconductor integrated circuit built around an array of configurable logic blocks (CLBs / LABs), programmable interconnect, and I/O cells that engineers can re-program in the field after PCB assembly. FPGAs sit in the broader programmable logic hierarchy: PLD (Programmable Logic Device) -> CPLD -> FPGA -> SoC FPGA. They provide hardware-level parallelism, deterministic latency, and far higher logic density than CPLDs, making them ideal glue logic, bus interfacing, and state-machine acceleration. The FLEX-10K family specifically pioneered embedded array blocks (EABs) for on-chip RAM/ROM, enabling System-on-a-Programmable-Chip (SOPC) integration before the modern SoC FPGA era. Key features of the EPF10K50VRC240-4 include 20,480 typical gates, 2,880 logic cells, 360 LABs, 189 maximum user I/O pins, 4 input look-up tables per LE, JTAG IEEE 1149.1 boundary-scan support, multi-volt I/O support (5.0 V tolerant with internal clamping), and in-system programmability through the Altera ByteBlaster or BitBlaster interface. The -4 speed grade places it among the faster commercial FLEX-10K parts, with propagation delays around 0.6 ns per logic element in optimized paths. Architecturally, the FLEX-10K device combines a fine-grained logic fabric with embedded array blocks that can be configured as RAM, ROM, or FIFO. This hybrid fabric is efficient for designs requiring both wide datapath logic and distributed memory - common in telecom bridging, industrial protocol conversion, and PCI bus interfacing. Configuration is SRAM-based, requiring a serial or parallel configuration PROM (such as EPC2 or EPC8) on power-up. Typical applications include legacy industrial control systems, telecom bridge/router line cards, PCI bus interface controllers, DSP co-processing front-ends, and ASIC prototyping platforms. The 240-pin RQFP package is straightforward to hand-prototype and rework on 4-layer PCBs, which is why the FLEX-10K family remains in service for long-lifecycle industrial, military, and aerospace programs. When designing with the EPF10K50VRC240-4, plan for an external configuration device (EPC2, EPC8, or compatible) and a dedicated JTAG chain for in-system programming. Decoupling requires at least 0.1 uF ceramic caps at every VCCINT/VCCIO pin pair, plus bulk tantalum on each supply rail. I/O banks must be powered before VCCINT to avoid in-rush current through I/O clamp diodes. This page synthesizes distributor pricing, drop-in same-brand speed-grade variants, application companion parts, and practical design notes for legacy FLEX-10K FPGA designs.

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EPF10K50VRC240-4N - 50K-Gate FLEX-10K FPGA, 240-RQFP | Intel / Altera
EPF10K50VRC240-4N

EPF10K50VRC240-4N - 50K-Gate FLEX-10K FPGA, 240-RQFP | Intel / Altera

The Intel / Altera EPF10K50VRC240-4N is a member of the FLEX-10K family of embedded programmable logic devices (PLDs) that pioneered System-on-a-Programmable-Chip (SOPC) integration. The device integrates 50,000 typical gates and 2,880 logic cells with 36 embedded array blocks (EABs) and 360 logic array blocks (LABs), delivering approximately 189 user I/Os from a 240-pin RQFP (exposed-pad BFQFP) package. It is a CMOS device with a typical internal frequency of 66.67 MHz and a worst-case propagation delay near 0.6 ns, with a supply of 3.3 V core on the -4 speed grade. An FPGA (Field-Programmable Gate Array) is a type of programmable logic device (PLD) that combines an array of configurable logic blocks, programmable interconnect, and configurable I/O cells on a single semiconductor die. FPGAs sit hierarchically under the broader category of programmable logic devices, alongside CPLDs, and serve as the dominant platform for digital logic prototyping, glue logic, DSP acceleration, and high-volume ASIC replacement when mask costs are prohibitive. The FLEX-10K family was the industry's first PLD family with embedded array blocks, allowing on-chip implementation of RAM, ROM, FIFOs, and multipliers directly in the logic fabric. Key features include 50,000 usable gates, 2,880 logic elements, 36 EABs providing a total of 20,480 bits of embedded memory, 189 maximum user I/Os, and a 3.3 V core supply with 5 V tolerant I/O options on selected members. The device is offered in a commercial 0 to 70 C operating range and is qualified to the -4 speed grade. The 240-pin RQFP exposed-pad package enables surface-mount assembly and improved thermal dissipation relative to non-exposed-pad RQFP variants. Typical applications include telecommunications glue logic, industrial control, prototyping for ASIC designs, low-volume digital signal processing pipelines, and bus-interface bridging. The high gate count and embedded memory make the EPF10K50 suitable for designs that need substantial on-chip storage and parallel datapaths but that do not require the very latest in process technology. When designing with this part, ensure that the Quartus II or MAX+PLUS II toolchain is used, since the FLEX-10K family predates modern Quartus Prime support. Plan PCB layout around the exposed pad for thermal management, and verify JTAG programming interface compatibility with the chosen configuration PROM.

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EPF10K50VRI240-3 - FLEX 10K 50K Gates FPGA | Intel | Altera
EPF10K50VRI240-3

EPF10K50VRI240-3 - FLEX 10K 50K Gates FPGA | Intel | Altera

The Intel (formerly Altera) EPF10K50VRI240-3 is a member of the FLEX 10K family of SRAM-based Field-Programmable Gate Arrays (FPGAs), delivering 50,000 gates, 2,880 logic cells, and 20,480 typical gate usage in a 240-pin RQFP (Power Quad Flat Pack) exposed-pad package. It provides 189 user I/Os and 360 LABs (Logic Array Blocks), with a maximum internal frequency of approximately 125 MHz and 0.42 µm CMOS process technology, fabricated on a 3.3 V core supply. An FPGA (Field-Programmable Gate Array) is a semiconductor device built around an array of configurable logic blocks (CLBs/LABs), interconnect, and I/O cells that designers can program after manufacture to implement arbitrary digital logic functions. FPGAs sit in the hierarchy: configurable logic block -> programmable logic device (PLD) -> FPGA -> programmable semiconductor. The FLEX 10K family, the industry's first embedded programmable logic device family, pioneered the System-on-a-Programmable-Chip (SOPC) concept by integrating a classic FPGA array with embedded array blocks (EABs) for on-chip RAM, ROM, FIFO, and multiplier functions, enabling glue-logic, DSP, and bus-interface integration on a single die. Key features of the EPF10K50VRI240-3 include 50K gates of logic capacity, 2,880 logic elements, twelve EABs (Embedded Array Blocks) totaling 24 Kbits of RAM, four Phase-Locked Loops (PLLs) for clock management, MultiVolt I/O supporting mixed-voltage interfaces, JTAG (IEEE 1149.1) boundary-scan test, and in-system programmability via the serial configuration EPROM interface. The 'RI240' suffix denotes an industrial-temperature-grade (-40 °C to +85 °C), 240-pin RQFP gull-wing surface-mount package, while the speed-grade '-3' designates the slowest of three commercial speed bins for this family. Typical applications for this device span glue-logic integration on legacy 5 V/3.3 V PCI and ISA bus systems, telecom line-card interfaces, industrial PLC controllers, and prototyping for ASIC replacement. Its EAB-based embedded memory and MultiVolt I/O make it well suited to bridging mixed-voltage subsystems that pre-date modern low-voltage FPGAs. The 240-pin RQFP allows hand-solderable rework and easy inspection compared with BGA alternatives, an advantage for legacy maintenance and low-volume production. When designing with this part, plan configuration storage carefully: FLEX 10K devices require an external configuration EPROM (e.g., EPC2, EPC8) loaded at power-up or via JTAG. Allow 6 I/O banks and verify MultiVolt VCCIO pin assignments for each interface. The exposed thermal pad must be soldered to a sufficient copper pour to meet the 31 °C/W thermal resistance target. This page synthesizes distributor inventory from DigiKey, Mouser, and Octopart, plus verified drop-in same-package alternatives from the FLEX 10K family and EPF10K100ARC240-3N cross-family upgrade, into a single, actionable reference not available on the manufacturer datasheet alone.

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EPF10K50VRI240-3N - 50K Gates FLEX-10K FPGA | Altera | Industrial
EPF10K50VRI240-3N

EPF10K50VRI240-3N - 50K Gates FLEX-10K FPGA | Altera | Industrial

The Altera EPF10K50VRI240-3N is a member of the FLEX-10K family of Field Programmable Gate Arrays (FPGAs) delivering 50,000 typical gates, 2,880 logic cells (Logic Elements), and 20,480 bits of embedded array RAM in a 240-pin RQFP (RQFP-240 / BQFP-240 with exposed pad) industrial-temperature package. The device is fabricated on a 0.42 µm CMOS process, supports 189 user I/O pins, and operates from a 3.3 V core supply with the -3 speed grade delivering up to 125 MHz internal performance. A Field Programmable Gate Array (FPGA) is a type of programmable logic device (PLD) that combines the high density of gate arrays with the in-system reconfigurability of logic. The FLEX-10K family specifically pioneered the industry's first embedded programmable logic devices, providing System-on-a-Programmable-Chip (SOPC) integration by combining an Embedded Array Block (EAB) for megafunctions such as efficient memory and specialized logic, with a Logic Array Block (LAB) fabric for general-purpose logic. This architecture positions the FLEX-10K within the broader hierarchy: FPGA -> programmable logic device -> programmable logic IC -> semiconductor. Key features of the EPF10K50VRI240-3N include 360 LABs, 12 EABs of 2,048 bits each, four Phase-Locked Loops (PLLs) for clock management, in-system programmability through the IEEE 1149.1 JTAG interface, multi-volt I/O support (2.5 V / 3.3 V / 5.0 V tolerant), and 4 mA typical quiescent current in standby. The 'I' in the part suffix indicates the industrial temperature range (-40 °C to +85 °C), and the 'N' suffix indicates a lead-free / Pb-free assembly suitable for RoHS-compliant designs. Technically, the FLEX-10K architecture implements SRAM configuration memory, requiring a configuration device (EPC) or microcontroller for power-up bitstream loading. The Look-Up Table (LUT)-based LE provides fast 4-input combinational logic and a dedicated register, while the EABs implement dual-port RAM, ROM, FIFO, or multiplier megafunctions. The 240-pin RQFP package offers a 32.0 mm x 32.0 mm body with a 0.5 mm pitch, making it compatible with conventional SMT assembly lines and rework tooling. Typical applications for the EPF10K50VRI240-3N include industrial control and factory automation PLCs, telecommunications interface cards, prototype ASIC emulation, glue-logic consolidation on legacy 5 V backplanes, digital signal processing front-ends, and bus-interface bridging (PCI, ISA, VME). The -3 speed grade and 189 user I/Os make it well suited to designs that require moderate logic density and high pin count rather than the highest possible clock frequency. When designing with this part, note that it is a mature, legacy FPGA family and is no longer recommended for new designs. Modern replacements such as the Altera / Intel Cyclone IV or MAX 10 series offer lower cost, lower power, smaller packages, and active support. For new designs targeting the same density class, evaluate Cyclone IV EP4CE40 or EP4CE55 in EQFP or BGA packages as a forward-compatible migration path. This page synthesizes distributor pricing, parametric specifications, and legacy cross-reference alternatives that are not consolidated on any single manufacturer datasheet or distributor product page.

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EPF10K50VRI240-4 - 50K Gates FLEX 10K FPGA 2880 Cells | Intel
EPF10K50VRI240-4

EPF10K50VRI240-4 - 50K Gates FLEX 10K FPGA 2880 Cells | Intel

The Intel (formerly Altera) EPF10K50VRI240-4 is a FLEX 10K family Field Programmable Gate Array (FPGA) integrating 50,000 gates and 2,880 logic elements in a 240-pin Power Quad Flat Pack (RQFP) package with exposed pad. Built on a 0.42 µm CMOS process, this device delivers 189 user I/Os, 20,480 typical gates, and 40,960 maximum system gates for high-density programmable logic designs. An FPGA (Field Programmable Gate Array) is a reprogrammable semiconductor that lets engineers implement arbitrary digital logic via a configurable array of logic elements, embedded memory blocks, and routing interconnect. FPGAs sit at the top of the programmable logic hierarchy: below FPGAs are CPLDs (less complex, non-volatile), and above are ASICs (custom silicon). The FLEX 10K family pioneered embedded array blocks (EABs) that combine SRAM lookup tables with dedicated dual-port RAM, enabling System-on-a-Programmable-Chip (SOPC) integration of logic and memory in a single device. Key features include 360 Logic Array Blocks (LABs), embedded array blocks for on-chip memory, MultiVolt I/O for mixed-voltage interfacing, PCI-compliant I/O with clamping diodes, slew-rate control, and open-drain output options. The -4 speed grade targets high-performance operation at 125 MHz internal frequency, with support for hot-socketing and peripheral registers for fast setup and clock-to-output delay. Typical applications include telecommunications infrastructure, industrial control systems, and legacy PCI-based designs. The 240-pin RQFP package is suitable for prototype development and through-hole-compatible layouts where BGA soldering is impractical, while exposed-pad construction provides enhanced thermal dissipation for sustained high-utilization designs. When designing with this device, ensure proper decoupling with 0.1 µF and 10 µF capacitors near each VCCINT and VCCIO pin. The exposed pad must be soldered to the ground plane for thermal and electrical performance. Programming requires the Quartus II or MAX+PLUS II development environment and a compatible ByteBlaster or ByteBlasterMV download cable. This page synthesizes distributor pricing, same-brand FLEX 10K drop-in alternatives, lifecycle observations, and practical design guidance that complements the manufacturer datasheet for engineers maintaining legacy Altera FPGA designs.

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EPF10K50VRI240-4N - 50K Gates Flex 10K FPGA, 240-Pin RQFP | Altera
EPF10K50VRI240-4N

EPF10K50VRI240-4N - 50K Gates Flex 10K FPGA, 240-Pin RQFP | Altera

The Altera (Intel) EPF10K50VRI240-4N is a member of the FLEX 10K family of SRAM-based Field Programmable Gate Arrays (FPGAs) manufactured in 0.42 µm CMOS technology, providing 50,000 typical gates, 2,880 logic cells, and 20,480 bits of embedded memory in a 240-pin RQFP (Power Quad Flat Pack) package with exposed thermal pad. A Field Programmable Gate Array (FPGA) is a semiconductor device built around an array of configurable logic blocks (CLBs), programmable interconnect, and programmable I/O cells. FPGAs sit at the top of the programmable logic device (PLD) hierarchy (PAL/GAL -> CPLD -> FPGA) and are widely used to implement custom digital logic, glue logic, glue-less bus interfaces, and high-throughput data-pipeline accelerators. The FLEX 10K family pioneered Altera's embedded array block architecture, pairing a logic array with embedded array blocks (EABs) that hold 2 Kbits of RAM each, allowing designers to combine state machines and FIFOs in a single chip. Key features of the EPF10K50VRI240-4N include 189 user I/O pins, 360 Logic Array Blocks (LABs), support for 3.3 V core supply (3.0 V min, 3.6 V max), a maximum internal operating frequency of 125 MHz, and a 66.67 MHz internal PLL-assisted clock domain. The device offers multiVolt I/O compatibility for interfacing with 5.0 V, 3.3 V, and 2.5 V logic, supports in-system programmability through the IEEE 1149.1 (JTAG) boundary-scan test interface, and integrates a built-in ByteBlasterMV / BitBlaster programming path. Industrial-grade temperature range (–40 °C to +85 °C) and surface-mount 240-RQFP packaging suit it for moderate-density logic integration in telecom, industrial control, and test & measurement backplanes. Architecture-wise, the FLEX 10K uses a continuous FastTrack interconnect with rows and columns of LABs, each LAB containing eight logic elements. Embedded array blocks provide 2 Kbit memory, configurable as RAM, ROM, or content-addressable memory. The -4 speed grade places this device in the middle of the FLEX 10K speed portfolio, balancing timing margin against power dissipation for industrial and telecom designs. Typical applications include telecom line-card glue logic, industrial motor-control state machines, factory-automation backplane interfaces, prototyping ASIC replacement, peripheral bus bridging (PCI, VME, ISA), and legacy digital-signal preprocessing. Designers typically pair the EPF10K50VRI240-4N with external SRAM, Flash boot memory, and a configuration PROM such as the EPC2 to support standalone boot after power-up. When designing with this part, note that the EPF10K50VRI240-4N has been classified by Intel as a mature device with limited new design support. Engineers targeting new designs should verify active product status and consider FLEX 10K production lead times. Power sequencing of the 3.3 V VCCINT rail and the VCCIO bank supply must respect the in-rush specification in the FLEX 10K datasheet to avoid inrush-latchup. This page synthesizes distributor pricing, drop-in package-compatible alternatives, and practical design notes that are not consolidated in the original Altera datasheet, accelerating your component selection.

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EPF10K70RC240-2 - FLEX 10K 70K Gates FPGA 240-RQFP | Intel
EPF10K70RC240-2

EPF10K70RC240-2 - FLEX 10K 70K Gates FPGA 240-RQFP | Intel

The Intel EPF10K70RC240-2 is a member of the FLEX 10K family of SRAM-based Field Programmable Gate Arrays (FPGAs) with 3,744 logic elements (cells), 70,000 typical gates, 18,432 flip-flops, and 189 maximum user I/O pins, housed in a 240-pin RQFP (also described as 240-BFQFP Exposed Pad) package. It is fabricated on a 0.42 µm CMOS process and operates from a 5 V supply with a maximum internal frequency of 125 MHz, and is rated for commercial temperature grade operation. An FPGA (Field-Programmable Gate Array) is a type of programmable logic device (PLD) that combines a large array of configurable logic blocks (CLBs), embedded memory, and programmable interconnects on a single semiconductor die. FPGAs belong to the broader hierarchy of digital logic ICs -> programmable logic -> programmable logic devices -> semiconductors. The FLEX 10K family was Intel's (formerly Altera's) first-generation look-up-table (LUT) based architecture with embedded array blocks (EABs) used as on-chip RAM/ROM, making it a hybrid between pure logic and memory-programmable logic. Key features of the EPF10K70RC240-2 include 468 logic array blocks (LABs), 9 embedded array blocks for on-chip memory, 18,432 dedicated flip-flops, 189 maximum user I/O pins, JTAG-based IEEE 1149.1 boundary-scan support, and in-system programmability (ISP) through the serial configuration EPROM interface. The -2 speed grade places this device in the mid-speed tier of the FLEX 10K family, suitable for designs up to 125 MHz of internal performance. The 240-RQFP package includes an exposed pad for improved thermal dissipation. Typical applications for this device include telecommunications line cards, industrial control glue logic, legacy ASIC replacement, DSP co-processing front-ends, bus-interface bridging, and prototyping platforms. Designers commonly choose the EPF10K70RC240-2 for low-to-mid density glue logic where 5 V tolerant I/O and high pin count are required, and where migration to a newer FPGA family would force a PCB redesign. When designing with this part, note that 5 V tolerant I/O and a 240-pin RQFP package make it a strong fit for legacy backplanes. Because the FLEX 10K family is in mature/legacy status, sourcing should be confirmed against long-term availability programs. The exposed pad must be soldered to a thermal land on the PCB for specified thermal performance. This page synthesizes distributor inventory, drop-in alternative MPNs, and design notes not consolidated in the manufacturer datasheet alone. Information gain includes a same-package drop-in cross-reference and a comparison against FLEX 10K family density siblings.

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EPF10K70RC240-2N - FLEX 10K FPGA, 70K Gates, 240-RQFP | Intel
EPF10K70RC240-2N

EPF10K70RC240-2N - FLEX 10K FPGA, 70K Gates, 240-RQFP | Intel

The Intel (formerly Altera) EPF10K70RC240-2N is a high-density FLEX 10K field-programmable gate array (FPGA) delivering 70,000 typical gates, 3,744 logic elements, and 18,432 bits of embedded SRAM in a 240-pin RQFP exposed-pad package. It is fabricated on a 0.42 µm CMOS process and operates from a single 5 V supply. The device provides 189 user I/O pins and is organized into 468 Logic Array Blocks (LABs), with a maximum internal operating frequency around 125 MHz and a propagation delay of approximately 0.4 ns per logic element. What is a FLEX 10K FPGA? The FLEX 10K family was the industry's first embedded programmable logic device (PLD) family to provide System-on-a-Programmable-Chip (SOPC) integration. It combines a coarse-grained logic array with an embedded array block (EAB) for implementing RAM, ROM, FIFO, and multiplier functions in dedicated silicon. Architecturally, FLEX 10K sits between classic PLDs (PAL/GAL) and modern FPGAs: the device hierarchy is PLD -> CPLD/FPGA -> SRAM-based FPGA -> FLEX 10K family, and it is recognized as a foundational step in the evolution toward today's high-density Cyclone and Stratix families. Key features of the EPF10K70RC240-2N include in-system programmability via SRAM configuration bitstream, multi-volt I/O support, built-in JTAG boundary-scan testing, and an exposed thermal pad for improved heat dissipation. The commercial-grade temperature range is 0 °C to 70 °C. The wide 189-pin user I/O count and 18,432-bit embedded memory make it suitable for glue-logic, bus-interface bridging, custom state machines, and small to mid-density data-path processing. The EPF10K70RC240-2N uses a Look-Up Table (LUT) based logic element feeding into a hierarchical LAB routing fabric, with EAB blocks providing true dual-port RAM up to 2,048 bits per block. Its 5 V core and I/O simplify interfacing with TTL/CMOS peripherals of its era, removing the need for level shifters in legacy designs. Typical applications for this part include industrial control systems, telecommunications glue logic, data-acquisition front ends, legacy ASIC prototyping, and migration from older discrete-logic designs. It is also used in educational platforms for teaching VLSI design concepts. Design consideration: This part is SRAM-based, so an external configuration ROM is required at every power-up. Designers should also budget for the in-rush current caused by simultaneous I/O toggling on the 189 user I/Os, and ensure the exposed pad is soldered to a sufficiently large copper pour for thermal relief. This page synthesizes distributor pricing, drop-in alternatives drawn from the same FLEX 10K family, and practical design notes that are not duplicated on standard distributor listings.

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EPF10K70RC240-3 - 70K FLEX-10K FPGA, 189 I/O, 240-BFQFP | Intel / Altera
EPF10K70RC240-3

EPF10K70RC240-3 - 70K FLEX-10K FPGA, 189 I/O, 240-BFQFP | Intel / Altera

The Intel (formerly Altera) EPF10K70RC240-3 is a member of the FLEX-10K family of Field-Programmable Gate Arrays (FPGAs), delivering 70,000 typical gates, 3,744 logic cells, and 18,432 typical logic elements (LEs) packaged in a 240-pin BFQFP with an exposed thermal pad. It operates from a 5 V supply and is fabricated on a 0.42 µm CMOS process, with a -3 speed grade corresponding to roughly 125 MHz internal performance per the FLEX-10K datasheet family. An FPGA (Field-Programmable Gate Array) is a semiconductor integrated circuit built around an array of configurable logic blocks (CLBs), programmable interconnects, and configurable I/O cells, all of which can be re-programmed by the designer after manufacturing. FPGAs sit at the top of the programmable logic hierarchy: PLD -> CPLD -> FPGA -> SoC FPGA. Within that taxonomy, the FLEX-10K family pioneered the embedded array block (EAB) concept, allowing megafunctions such as RAM, ROM, and DSP blocks to be embedded alongside general-purpose logic, giving designers System-on-a-Programmable-Chip (SOPC) capability long before modern SoC FPGAs. Key features include 189 user I/O pins (the largest in the FLEX-10K RC240 footprint class), 468 Logic Array Blocks (LABs), embedded EABs for memory and DSP primitives, JTAG-compliant boundary-scan test support, and built-in configuration circuitry supporting serial and parallel configuration modes. The exposed thermal pad on the 240-BFQFP package allows direct heat extraction to a PCB copper pour, critical for industrial-temperature operation. Architecturally, the EPF10K70 uses a unique combination of a fine-grained logic fabric for random logic and coarse-grained EABs for wide-word functions, allowing efficient implementation of FIFOs, dual-port RAM, and arithmetic accumulators without consuming general-purpose logic. The -3 speed grade is the mid-band of the family (between -2 and -4), offering the best balance of timing margin and cost. Typical applications include telecom line-card glue logic, industrial control and factory automation backplanes, military/aerospace avionics systems, prototype ASIC emulation, and legacy replacement for EOL Altera APEX / FLEX-10K designs. Designers frequently use the EPF10K70RC240-3 as the last-time-buy or NRE-prototype FPGA when migrating from older SRAM-based programmable logic. When designing with this device, ensure 5 V tolerance at the I/O banks is matched to your signal environment, and follow the FLEX-10K configuration guide for JTAG chain ordering when multiple devices share the same TCK/TMS lines. The exposed pad must be soldered to a sufficient copper area to meet the datasheet thermal resistance, typically a 9 x 9 array of thermal vias under the die. This page synthesizes distributor inventory, drop-in compatible FLEX-10K family alternatives, and practical design notes not consolidated in any single manufacturer datasheet, giving procurement and design engineers a single reference for sourcing and migrating EPF10K70RC240-3 designs.

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