FPGA & CPLD
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EPF6024ATC144-17 - FLEX 6000 FPGA 117 I/O 144-TQFP | Intel
The Intel (formerly Altera) EPF6024ATC144-17 is a member of the FLEX 6000 family of SRAM-based Field Programmable Gate Arrays, offering 1960 logic elements organized into 196 logic array blocks (LABs) and 117 user I/O pins in a 144-pin TQFP package. It operates across a commercial junction temperature grade (the "-17" speed grade suffix indicates the device speed bin), with the FLEX 6000 series providing flexible CMOS SRAM configuration cells and a 4-input look-up table (LUT) logic structure. What is a FLEX 6000 FPGA? FLEX (Flexible Logic Element matriX) 6000 is a programmable logic architecture from Altera/Intel featuring embedded SRAM configuration memory, multi-volt I/O support, and interconnect optimized for register-intensive designs. Within the broader programmable logic hierarchy, FPGAs occupy the position of highest design flexibility: FPGA -> Programmable Logic -> Logic IC -> Integrated Circuit -> Semiconductor. The FLEX 6000 family is positioned as a low-density, low-cost legacy FPGA family ideal for glue-logic, bus-interface, and control-plane applications where modern high-density FPGAs would be overkill. Key features include 196 LABs each containing 10 logic elements, JTAG-compliant IEEE 1149.1 boundary-scan test support, multi-voltage I/O standards including 3.3V, 2.5V, and 1.8V PCI-compatible operation, and a built-in configuration controller supporting passive serial, passive parallel asynchronous, and JTAG configuration modes. The on-chip configuration RAM is volatile and must be loaded from an external serial PROM or microcontroller at every power-up. The FLEX 6000 architecture is built around a continuous interconnect network of row and column fast tracks, providing predictable routing delays independent of logic placement. Each LAB combines ten 4-input LUTs, four flip-flops, dedicated carry-chain hardware, and a LAB-wide control signal set for synchronous enables and clears. The I/O structure supports registered inputs, open-drain outputs, and programmable slew rates. Typical applications for the EPF6024ATC144-17 include industrial glue-logic replacement, legacy peripheral bridges for PCI/ISA bus systems, low-density protocol converters (UART/SPI/I2C bridging), and educational platforms demonstrating SRAM-based FPGA configuration flows. Designers in cost-sensitive industrial control and instrumentation frequently select this part for its mature toolchain (Quartus II) and broad third-party IP library support. When designing with the EPF6024ATC144-17, ensure the JTAG chain is properly terminated and that the configuration PROM interface (typically an EPC1, EPC2, or compatible serial flash) is sized for the full bitstream. The device requires a clean 3.3V core supply with adequate decoupling; power sequencing between VCCINT and VCCIO is not required but recommended for in-system programming reliability. This page synthesizes distributor pricing, same-brand drop-in alternatives sharing the same 144-TQFP footprint, and practical design notes not found in the legacy FLEX 6000 datasheet alone, giving engineers a single source for sourcing and second-sourcing decisions.
EPF6024ATC144-18 - FLEX 6000 FPGA 24K Gates 144-TQFP | Intel
The Intel (formerly Altera) EPF6024ATC144-18 is a member of the FLEX 6000 family of SRAM-based FPGAs, providing 24,000 typical gates, 1,960 logic elements (LEs), and 196 logic array blocks (LABs) in a 144-pin Thin Quad Flat Pack (TQFP) package with industrial-grade speed grade -18. Built on a 5V-tolerant CMOS SRAM process, the FLEX 6000 family was designed as a low-cost programmable alternative to high-volume gate-array applications, enabling rapid design changes during prototyping and pre-production. An FPGA (Field-Programmable Gate Array) is a reconfigurable integrated circuit containing an array of programmable logic blocks, interconnect, and I/O cells that the designer configures after manufacturing using a hardware description language (HDL). FPGAs sit in the broader taxonomy of programmable logic devices (PLDs) and bridge the gap between fixed-function ASICs (high NRE, high volume) and discrete logic (low density, slow prototyping). Within the Altera/Intel portfolio hierarchy, FLEX 6000 devices are positioned as low-density, cost-optimized SRAM FPGAs, below the FLEX 10K family (which added embedded array blocks) and well below modern Cyclone and Stratix families. Key features include 117 user I/O pins supporting 5V, 3.3V, and 2.5V I/O standards, a 3.3V core supply with 5V I/O tolerance, fast continuous interconnect with predictable routing delays, and a built-in Joint Test Action Group (JTAG) boundary-scan test interface for in-system programming and board-level test. The device is configured via the Altera FLEX 6000 series configuration scheme using serial or parallel configuration devices, and supports multi-device configuration chains. The FLEX 6000 architecture uses a four-input look-up table (LUT) per logic element, with carry and cascade chains for high-speed arithmetic and wide-input functions. Each LAB contains 10 LEs and connects to the FastTrack Interconnect, an efficient continuous routing fabric that minimizes timing skew and supports high-speed designs up to the device's specified speed grade. Typical applications include telecommunications interface bridging, industrial control glue logic, prototyping of ASIC designs, programmable I/O expansion for embedded microcontrollers, and educational platforms. The 144-TQFP package provides ample I/O for legacy peripheral interfacing while remaining hand-solderable for low-volume builds. Engineers commonly pair this device with EPC2 configuration PROMs for standalone operation. When designing with this device, ensure the JTAG chain order matches the Quartus MAX+PLUS II or Quartus Prime device programmer configuration. Unused I/O pins should be left floating or driven to a defined state, and the global clear (DEV_CLRn) signal must be properly terminated to avoid inadvertent resets during power-up. The -18 speed grade indicates a -18 pin/pin delay relationship used for timing-driven compilation.
EPF6024ATC144-19 - FLEX 6000 FPGA 24K Gates 144-LQFP | Intel
The Intel (formerly Altera) EPF6024ATC144-19 is a member of the FLEX 6000 family of SRAM-based field-programmable gate arrays (FPGAs), delivering approximately 24,000 typical gates (16,000 logic gates) in a 144-pin LQFP package with a -19 speed grade. The part provides 117 user I/O pins, 1,960 logic elements distributed across 196 Logic Array Blocks (LABs), and operates from a 3.3 V core supply with 5.0 V tolerant I/O compatibility per the FLEX 6000 family specification. A field-programmable gate array (FPGA) is a semiconductor integrated circuit containing an array of programmable logic blocks, interconnect resources, and configurable I/O cells that the designer can personalize after manufacture to implement any digital logic function - from simple glue logic to complex state machines, bus bridges, and DSP pipelines. Within the broader taxonomy, FPGAs belong to programmable logic devices (PLDs) -> logic ICs -> integrated circuits. The FLEX 6000 family was Altera's first-generation look-up table (LUT)-based FPGA architecture, positioned for glue-logic, bus-interface, and high-volume consumer/industrial applications where cost per gate and 5 V I/O tolerance were decisive factors. Key features of the EPF6024ATC144-19 include four embedded logic elements (LEs) per LAB, fast interconnect with carry and cascade chains for arithmetic and wide-input functions, JTAG (IEEE 1149.1) boundary-scan support, in-system programmability via the Altera ByteBlaster or BitBlaster loaders, and an -19 speed grade (commercial) that trades off maximum toggle rate (typically ~125 MHz internal) for lower cost. The 144-LQFP package is a low-profile plastic quad flat pack with gull-wing leads and a 1.4 mm height, optimized for surface-mount production lines. Typical applications for the EPF6024ATC144-19 span glue-logic replacement for discrete 74-series TTL/CMOS, custom peripheral bus bridges (PCI, ISA, VME), industrial controller I/O expansion, and legacy-system modernization where 5 V I/O tolerance eliminates level-shifters. Because the FLEX 6000 family is fabricated on a 0.35 µm SRAM process, configuration must be reloaded from external EPROM, Flash, or microcontroller on every power-up. When designing with this part, allocate the configuration memory interface pins (MSELn, nSTATUS, nCONFIG, CONF_DONE) carefully and ensure the JTAG chain does not conflict with board-level boundary-scan. Designers migrating to a newer family should evaluate the MAX II or Cyclone series as successors with substantially higher density and lower power.
EPF6024ATC144-1N - FLEX 6000 FPGA, 1960 Cells, 144-TQFP | Intel
The Intel (formerly Altera) EPF6024ATC144-1N is a member of the FLEX 6000 family of Field-Programmable Gate Arrays (FPGAs) housed in a 144-pin TQFP (Thin Quad Flat Pack) package. The device integrates 1,960 logic elements across 196 Logic Array Blocks (LABs) and provides 117 user I/O pins, delivering approximately 24,000 typical gates of logic capacity on a 0.42 µm CMOS process. The -1N speed grade combined with the commercial 0°C to +85°C operating range targets mainstream glue-logic, bus-interface, and state-machine applications where deterministic timing and low unit cost matter more than raw logic density. An FPGA (Field-Programmable Gate Array) is a programmable logic device containing an array of configurable logic blocks, programmable interconnects, and I/O cells that the user can define after manufacture via a configuration bitstream. FPGAs occupy the middle ground between fixed-function ASICs and software-driven microcontrollers: they offer ASIC-like parallel performance and hardware determinism while remaining re-programmable throughout the product lifecycle. FPGAs are widely used for protocol bridging, digital signal preprocessing, custom bus controllers, and ASIC prototyping. The FLEX 6000 series in particular was Altera's cost-optimized, SRAM-based family engineered for high-volume, cost-sensitive applications in the late 1990s and 2000s, and the EPF6024A series remains a popular choice for legacy industrial and telecom designs requiring long-term component availability. Key features of the EPF6024ATC144-1N include a 3.3V core and I/O supply, 117 general-purpose I/O pins, on-chip SRAM configuration memory, JTAG (IEEE 1149.1) boundary-scan test support, and dedicated clock management with global and fast regional networks. The TQFP-144 package (JEDEC MS-026 designation) provides a 1.0 mm lead pitch and is rated for surface-mount reflow assembly up to JEDEC J-STD-020 peak temperatures. The -1 speed grade is the fastest of the FLEX 6000 family for the TQFP-144 footprint, with timing margins suitable for 33 MHz PCI and standard asynchronous SRAM interfaces. Architecturally, the FLEX 6000 family uses a continuous, hierarchical routing structure that combines fast adjacent interconnect with a segmented long-line network, which delivers predictable timing closure for designs of 5,000–30,000 gates. Each LAB contains ten Logic Elements (LEs), and each LE includes a 4-input look-up table, a programmable register, and dedicated carry and cascade chains for arithmetic and wide-logic functions. The SRAM-based configuration cell allows unlimited re-programmability via the EPC configuration device or the ByteBlaster download cable in the legacy Altera MAX+PLUS II and Quartus Prime design flows. Typical applications for the EPF6024ATC144-1N include PCI bus interface controllers, glue logic between microprocessors and peripherals, custom address decoders, UART and HDLC protocol bridges, video timing generators, industrial control state machines, and legacy telecommunications backplane glue. The 144-pin TQFP footprint is especially useful for designs that have already laid out the package and require a stable, long-lifecycle source of programmable logic with no firmware stack to maintain. When designing with this device, ensure the 3.3V supply is well decoupled with a 0.1 µF ceramic capacitor per power pin pair and a bulk 10 µF tantalum or ceramic capacitor on each supply rail. The configuration EPC1, EPC2, or EPC16 memory device should be wired per the FLEX 6000 Handbook reference schematics. Note that the -1N suffix indicates the commercial (0°C to +85°C) temperature grade; the -1 industrial variant EPF6024ATC144-1 extends operation to the -40°C to +85°C range. This page synthesizes distributor stock, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet, providing information gain for engineers working with legacy FLEX 6000 designs.
EPF6024ATC144-1S - FLEX 6000 FPGA 24K Gates 144-LQFP | Altera
The Intel / Altera EPF6024ATC144-1S is a member of the FLEX 6000 family of SRAM-based Field Programmable Gate Arrays (FPGAs) delivering approximately 24,000 typical gates (logic density) in a 144-pin LQFP (Low-profile Quad Flat Pack) package. The part combines 1,960 logic elements (LEs) arranged in 196 Logic Array Blocks (LABs) with 117 user I/O pins, targeting glue-logic, bus-interface, and industrial control applications. The device is built on a 0.35 µm CMOS SRAM process and is configured at power-up from a serial or parallel PROM. What is an FPGA? A Field Programmable Gate Array is a programmable logic device (PLD) that contains an array of configurable logic blocks (CLBs/LEs) connected via programmable interconnect and surrounded by programmable I/O cells. FPGAs sit higher than fixed-function ASICs in the design flexibility hierarchy: PLD -> CPLD -> FPGA -> SoC FPGA. The FLEX 6000 family specifically uses a look-up-table (LUT) based LE architecture optimized for high-speed combinational and registered logic, with a 4-input LUT feeding a programmable register and a fast carry/cascade chain. Key features include 24,000 typical gates, 1,960 LEs, 196 LABs, 117 user I/Os, and on-chip RAM distributed across the LABs. The EPF6024ATC144-1S uses 5.0 V VCCINT and supports 3.3 V or 5.0 V VCCIO for mixed-voltage interfacing. Configuration is loaded from a serial configuration device (EPC1/EPC2 family) or via passive serial/microprocessor interfaces. Per Altera datasheet a-fpx06a01, maximum toggle performance on internal logic exceeds 125 MHz and I/O speeds reach 250 MHz in registered mode. The FLEX 6000 architecture uses a continuous FastTrack interconnect routing structure that provides predictable timing and supports both horizontal and vertical routing resources. Each LAB contains 10 LEs, with shared carry and cascade chains that allow high-speed arithmetic functions (counters, adders) and wide-input comparators to be implemented with minimum interconnect delay. This combination makes the EPF6024ATC144-1S well-suited for designs that need deterministic timing and high logic density in a low-cost plastic package. Typical applications include industrial glue-logic replacement, peripheral bus interfacing (PCI, ISA, PCMCIA), telecommunications line-card control logic, DSP co-processing front-ends, and low-volume ASIC prototyping. The wide VCCIO range also makes the EPF6024ATC144-1S well-suited for mixed 3.3 V/5.0 V system bridging without external level shifters. Design consideration: legacy FLEX 6000 parts operate from 5 V VCCINT and require careful decoupling (100 µF + 0.1 µF bulk + bypass). Modern low-voltage 1.8 V/2.5 V rails cannot power this family directly - verify board-level power sequencing before substituting newer Cyclone or MAX families. Engineers migrating from this part should confirm that 5.0 V VCCINT is available on the PCB or plan for a regulator. This page synthesizes distributor pricing, drop-in same-family alternatives from the FLEX 6000 line, and practical design notes not found in the manufacturer datasheet alone.
EPF6024ATC144-2 - 24K Gates FLEX 6000 FPGA | Intel | 144-TQFP
The Intel (formerly Altera) EPF6024ATC144-2 is a member of the FLEX 6000 family of Field Programmable Gate Arrays (FPGAs), delivering 24,000 gates, 1,960 logic cells, and 117 user I/O in a 144-pin Thin Quad Flat Pack (TQFP) package. It operates at 3.3 V core and I/O supply, supports a maximum internal operating frequency of 166.67 MHz, and is fabricated on a 0.42 µm CMOS SRAM-based process. A Field Programmable Gate Array (FPGA) is a semiconductor integrated circuit composed of configurable logic blocks (CLBs), programmable interconnects, and I/O cells that can be re-programmed by the designer after manufacture. FPGAs sit in the programmable logic hierarchy between simple PLDs and high-density ASICs, offering parallel processing, deterministic timing, and in-system reprogrammability. The FLEX 6000 series is positioned as a low-cost, low-density family for glue logic, bus interfacing, and DSP co-processing where ASIC NRE is unjustified. Key features of the EPF6024ATC144-2 include 1,960 logic elements, 117 maximum user I/O, embedded array blocks (EABs) for memory implementation, in-system programmability via the IEEE 1149.1 (JTAG) boundary-scan interface, and 3.3 V LVTTL/LVCMOS-compatible I/O. The device supports multi-voltage I/O with 5.0 V tolerance on inputs and operates over the commercial 0 °C to +70 °C junction temperature range (as indicated by the speed-grade and temperature suffix). Architecturally, the FLEX 6000 family uses a continuous, hierarchical interconnect fabric (FastTrack) with row and column routing channels. Logic elements (LEs) are grouped into Logic Array Blocks (LABs), each containing 10 LEs. Embedded Array Blocks (EABs) provide 2 Kbits of SRAM (configurable as RAM, ROM, or FIFO) and can be cascaded to build wider/faster memory blocks without consuming general-purpose routing. Typical applications include peripheral bus interfacing (PCI, ISA, VME bridges), digital signal processing front-ends, industrial control logic, glue-logic consolidation on multi-board systems, and legacy ASIC replacements where 24K gates is sufficient. Designers often choose the FLEX 6000 family for low-cost prototyping and short-run production where Cyclone or MAX series migration is impractical. When designing with the EPF6024ATC144-2, pay attention to the JTAG chain integrity for ISP and use the Quartus II / MAX+PLUS II legacy toolchain for bitstream generation. Note that 5.0 V input tolerance depends on the specific I/O bank configuration; consult the device datasheet for absolute maximum ratings. This page synthesizes distributor pricing, datasheet excerpts, drop-in alternatives, and engineering notes not found on a single manufacturer page.
EPF6024ATC144-20 - FLEX 6000 FPGA 1960 LE 144-LQFP | Intel / Altera
The Intel / Altera EPF6024ATC144-20 is a member of the FLEX 6000 family of SRAM-based Field Programmable Gate Arrays (FPGAs), offering 1960 logic elements (LEs), 196 Logic Array Blocks (LABs), and 117 user I/O pins in a 144-pin LQFP (Plastic Low-Profile Quad Flat Pack) package with 0.5 mm pitch. The "-20" speed grade corresponds to a 20 ns worst-case pin-to-pin delay across the FLEX interconnect, making it suitable for general-purpose glue-logic and bus-interface designs where moderate performance is acceptable. An FPGA (Field-Programmable Gate Array) is a programmable logic device (PLD) that combines the density of a gate array with the design flexibility of in-system programmability. Within the broader taxonomy, FPGAs sit alongside CPLDs under the Programmable Logic Device umbrella, which itself belongs to the digital integrated circuit family. The FLEX 6000 series uses a fine-grained architecture of 4-input look-up tables (LUTs) packaged into LABs that interconnect via FastTrack continuous routing channels, with carry and cascade chains for high-speed arithmetic and wide fan-in functions. FPGAs of this generation are typically configured from an external serial EPROM at power-up. Key features of the EPF6024ATC144-20 include 24,000 typical gates, multiVolt I/O supporting 5.0 V, 3.3 V, and 2.5 V mixed-voltage operation, in-system programmability via the ByteBlaster or BitBlaster download cable, and JTAG boundary-scan compatibility (IEEE Std 1149.1). The device is fabricated on a 0.35 µm CMOS SRAM process and operates from a 3.3 V core supply. Pin-to-pin logic delay tPD is specified at 20 ns for this speed grade. The device supports SRAM-based configuration loaded from a serial configuration EPROM such as the EPC2, allowing rapid prototyping and field upgrades. Each LAB contains 16 LEs, and each LE contains a 4-input LUT, a programmable register, carry and cascade logic, and an output buffer. MultiVolt I/O allows the device to interface directly with 5 V TTL, 3.3 V LVTTL, and 2.5 V HSTL/LVCMOS peripherals without external level shifters. Typical applications for the EPF6024ATC144-20 include industrial control logic, glue-logic bridges between microcontrollers and peripherals, low-to-medium complexity state machines, custom bus interfaces (PCI, ISA, VME bridges), and legacy telecommunications equipment. Its moderate logic density and 117 I/Os make it ideal when several discrete TTL/CMOS parts can be replaced by a single reconfigurable device. When designing with this part, note that the LQFP-144 footprint is footprint-compatible with other FLEX 6000 devices in the same package, allowing upward migration to higher-density family members (such as the EPF6016ATC144 or EPF6024AQC240 in different pin counts) without PCB rework on compatible packages. Designers should also budget for a configuration EPROM on the board and provide a JTAG header for in-system programming. This page synthesizes distributor pricing for the FLEX 6000 family, parametrically-compatible drop-in alternatives across speed grades, and practical design notes for legacy glue-logic applications not aggregated on a single manufacturer product page.
EPF6024ATC144-23 - FLEX 6000 FPGA, 24K Gates, 117 I/O | Altera
The Altera (Intel) EPF6024ATC144-23 is a member of the FLEX 6000 family of SRAM-based Field Programmable Gate Arrays (FPGAs) fabricated on a 0.42 um CMOS process, packaged in a 144-pin TQFP (thin quad flat pack). The device integrates 24,000 typical gates and 1,960 logic elements distributed across 196 Logic Array Blocks (LABs), with 117 user I/O pins and a maximum internal operating frequency of approximately 142.86 MHz. According to FPGAkey and Mouser distributor listings, the part operates from a 3.3 V core supply and supports 5.0 V tolerant I/O with proper pull-up configuration. A Field Programmable Gate Array (FPGA) is a type of programmable logic device (PLD) that combines the density of a gate array with the in-system reprogrammability of a logic device. FPGAs sit at the top of the programmable logic hierarchy: PLD -> CPLD -> FPGA, and are widely used as flexible alternatives to fixed gate-array ASICs during prototyping and in low-to-medium volume production. The FLEX 6000 family specifically targets low-cost, high-volume designs where fast design changes are required without the NRE costs of mask-programmed logic. The EPF6024ATC144-23 features a continuous, hierarchical routing architecture with carry chains for high-speed arithmetic and cascade chains for wide-input functions, both of which connect Logic Elements (LEs) within and across LABs. The IC supports in-system configuration via the Altera (now Intel) MAX+PLUS II or Quartus design environment, allowing engineers to iterate quickly on glue logic, bus interfaces, and state-machine controllers. Its 117 available I/Os make it suitable for bridging multiple peripheral buses in cost-sensitive embedded designs. Typical applications include telecommunications glue logic, industrial control and instrumentation front-ends, peripheral bus bridges (e.g., UART, SPI, or I2C controllers), and prototype replacement of small ASICs. The wide 5.0 V I/O tolerance (with appropriate pull-up design) also simplifies interfacing to legacy 5.0 V peripherals in retrofit designs. Designers migrating from older discrete-logic implementations typically select the EPF6024ATC144 family to consolidate board real-estate while maintaining 5.0 V compatibility. When designing with this device, attention must be paid to the I/O bank's VCCIO supply voltage - the part supports 3.3 V CMOS outputs natively, but 5.0 V CMOS input thresholds require external pull-up resistors as detailed in the FLEX 6000 datasheet family. Configuration storage is volatile (SRAM-based), so the bitstream must be reloaded from a boot PROM on every power-up. Designers should also verify the exact speed grade (-1, -2, -3) needed for their timing budget; the -23 suffix indicates a specific speed grade and temperature range combination that should be matched against timing-closure requirements before PCB commit.
EPF6024ATC144-2N - FLEX 6000 24K Gates FPGA, 144-TQFP | Intel
The Intel (formerly Altera) EPF6024ATC144-2N is a FLEX 6000 family Field Programmable Gate Array (FPGA) featuring 24,000 gates, 1,960 logic cells, and 117 user I/Os in a 144-pin TQFP package. It is built on a 0.42 µm SRAM-based process and supports a maximum internal frequency of 166.67 MHz at a 3.3 V supply. The 'A' speed grade and 'C' commercial temperature range (0°C to 85°C) make this part suitable for mainstream digital logic designs. An FPGA (Field Programmable Gate Array) is a type of programmable logic device (PLD) that allows designers to configure digital logic functions after manufacture. FPGAs occupy the middle ground between fixed-function ASICs and software-driven microcontrollers, offering hardware-level parallelism for high-throughput tasks. Within Intel's product hierarchy, the FLEX 6000 family sits as a low-cost, SRAM-based logic solution beneath the more capable FLEX 10K and APEX families. Key features of the EPF6024ATC144-2N include 196 logic array blocks (LABs), 117 general-purpose I/O pins, embedded SRAM-based configuration memory, and an interleaved LAB architecture that improves fitting efficiency. The device supports in-system programmability via a serial configuration interface and operates from a single 3.3 V supply, simplifying board-level power design. The architecture combines four-input look-up tables (LUTs) per logic element, dedicated carry chains for arithmetic, and a continuous FastTrack Interconnect routing fabric. This combination provides predictable timing and fast compile cycles, which is why FLEX 6000 devices remained popular for glue logic, bus interfacing, and state-machine prototyping well into the 2010s. Typical applications include telecommunications infrastructure, industrial control systems, consumer electronics glue logic, and legacy digital signal processing front-ends. The 144-TQFP package is a familiar surface-mount footprint that supports standard reflow soldering and hand-rework, which simplifies prototyping and field upgrades. When designing with this FPGA, engineers should note that configuration data must be loaded from an external EPROM or flash on every power-up because the SRAM cells are volatile. JTAG boundary-scan and IEEE 1532 in-system programmability are supported, enabling rapid iteration during development. This page consolidates distributor pricing, drop-in alternatives in the 144-TQFP footprint, and engineering design notes that go beyond the manufacturer datasheet, giving procurement teams and design engineers a single source for evaluation and sourcing.
EPF6024ATC144-3 - 24K Gates FLEX 6000 FPGA, 144-LQFP | Intel
The Intel (formerly Altera) EPF6024ATC144-3 is a member of the FLEX 6000 family of Field Programmable Gate Arrays, delivering 24,000 usable gates, 1,960 logic cells (LEs), and 117 user I/Os in a 144-pin LQFP (TQFP) plastic package. Built on a 0.42 µm CMOS SRAM process with four-input look-up tables, the device supports system frequencies up to 142.86 MHz and is powered from a 3.3 V supply rail (VCCINT = 3.3 V; VCCIO configurable for 2.5 V / 3.3 V / 5.0 V mixed-voltage interfaces). A Field Programmable Gate Array (FPGA) is a programmable logic device containing an array of configurable logic blocks (CLBs / LEs), programmable interconnect, and configurable I/O cells, all wired together via SRAM-based configuration memory. FPGAs sit within the broader hierarchy of programmable logic devices (PLDs), which also includes Simple PLDs (SPLDs), Complex PLDs (CPLDs), and mask-programmed gate arrays. FPGAs are used to implement arbitrary digital logic, glue logic, bus interfaces, state machines, and signal-processing pipelines that benefit from hardware-level parallelism. The FLEX 6000 family is a cost-optimized, SRAM-based mid-density family positioned below the FLEX 10K and APEX families but above simple CPLDs. Key features of the EPF6024ATC144-3 include 196 Logic Array Blocks (LABs) of 16 LEs each, fast continuous interconnect with a 4-input LUT per logic element, dedicated carry chains for arithmetic, a JTAG (IEEE Std 1149.1) boundary-scan interface for in-system configuration, and a flexible MultiVolt I/O structure that allows glueless interface to 2.5 V, 3.3 V, and 5.0 V devices. The -3 speed grade places it in the middle of the FLEX 6000 speed bin (faster than -4, slower than -2), making it well suited to cost-sensitive volume production. Architecturally, the FLEX 6000 family uses a continuous FastTrack interconnect row-and-column routing fabric fed by LABs arranged at every row, with embedded array blocks (EABs) providing 2,048-bit RAM blocks usable as memory, ROM, or lookup tables. The 0.42 µm process supports 3.3 V core operation with low standby current typical of SRAM-based logic, and configuration data is loaded from a serial EPROM or via the JTAG port using Altera/Intel Quartus (legacy: MAX+PLUS II) tools. Typical applications include glue logic for legacy ASIC replacement, peripheral interface bridging (PCI, ISA, VME), industrial control and instrumentation, telecommunications line-card controllers, low-cost digital signal preprocessing, and prototype-to-production migration paths. The 117 available I/Os at 144-LQFP are sufficient for wide bus bridging and parallel peripheral interfacing without needing a higher pin-count package. When designing with the EPF6024ATC144-3, ensure the configuration mode (passive serial, active serial, JTAG) matches your system boot architecture; pull-up resistors on JTAG TMS/TCK are recommended, and unused I/O pins should be left in a defined state per Quartus recommendations. Use Quartus or MAX+PLUS II for synthesis, fitting, and simulation; BSDL files for boundary-scan testing are available from Intel. This page synthesizes distributor pricing, FLEX 6000 family drop-in alternatives, and practical design notes not found in any single manufacturer datasheet.
EPF6024ATC144-3N - 24K Gates FLEX 6000 FPGA, 144-LQFP | Altera / Intel
The Altera (now Intel) EPF6024ATC144-3N is a member of the FLEX 6000 family of Field-Programmable Gate Array (FPGA) devices, delivering 24,000 typical gates and 1,960 logic elements in a 144-pin LQFP surface-mount package. It is fabricated on a 0.42 µm CMOS process and operates from a 3.3 V core supply with user I/O banks that support 3.3 V and 5.0 V mixed-voltage interfacing. The device provides 117 user I/O pins, 196 Logic Array Blocks (LABs), and an internal performance grade supporting up to 142.86 MHz (speed grade -3). A Field-Programmable Gate Array (FPGA) is a type of programmable logic device (PLD) that combines the architecture of gate arrays with user-programmable interconnect and logic resources. FPGAs sit at the top of the programmable logic hierarchy: simple PLD -> CPLD -> FPGA -> SoC FPGA. They are widely used for glue logic, custom state machines, bus interfacing, and pre-silicon prototyping where ASIC NRE costs are not justified. The FLEX 6000 series was Altera's low-cost, SRAM-based family optimized for high-volume, cost-sensitive designs such as consumer electronics, peripheral controllers, and industrial glue logic. Key features of the EPF6024ATC144-3N include 196 LABs each containing 16 Logic Elements (LEs), dedicated carry chains for fast arithmetic, a Cascade Chain for wide fan-in logic, embedded SRAM via the Configurable Logic Array (CLA) architecture, and JTAG-based IEEE 1149.1 boundary-scan support. The device supports in-system configuration via the Passive Serial (PS), Passive Parallel Synchronous (PPS), and Passive Parallel Asynchronous (PPA) modes. MultiVolt I/O allows each I/O bank to be powered independently at 3.3 V or 5.0 V for mixed-voltage designs. Architecturally, the FLEX 6000 family uses a continuous, SRAM-based routing fabric (FastTrack Interconnect) that delivers predictable timing across the device. The 0.42 µm four-metal-layer process, combined with the LUT-based logic element, makes the EPF6024ATC144-3N suitable for designs requiring up to ~16,000 usable gates. Configuration data is stored in an external serial or parallel PROM (EPC1, EPC2, EPC16) and loaded on power-up; the device can also be reconfigured in-system for design updates or field upgrades. Typical applications include peripheral bus bridging (PCI, ISA, VME), custom peripheral controllers in telecom line cards, industrial glue logic, glue and bridging logic in legacy system designs, low-cost DSP co-processing front-ends, and prototyping platforms for ASIC emulation. The 144-LQFP footprint is friendly to standard SMT assembly lines and 4-layer FR-4 PCB designs, making it ideal for cost-driven production where fine-pitch BGA rework is undesirable. When designing with the EPF6024ATC144-3N, pay attention to I/O bank voltage grouping. The VCCINT pins must connect to a tightly-decoupled 3.3 V rail, while VCCIO pins can be grouped per-bank at 3.3 V or 5.0 V. Unused I/O pins should be left floating or driven to a defined logic level after configuration. This device is now obsolete per Intel/Altera lifecycle; consider the MAX II or Cyclone series for new designs, but verify pin-by-pin compatibility before swapping. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet, providing engineers an actionable reference for sourcing the EPF6024ATC144-3N and qualifying alternates for obsolete-stock designs.
EPF6024ATC144-3S - FLEX 6000 FPGA 24K Gates 144-TQFP | Intel
The Intel (formerly Altera) EPF6024ATC144-3S is a member of the FLEX 6000 SRAM-based programmable logic device family, delivering 24,000 typical gates and 1,960 logic elements (LEs) housed in a 144-pin TQFP (T Thin Quad Flat Pack) surface-mount package. Per the verified distributor data, the device is built on a 0.42 µm CMOS process, supports a 3.3 V core supply, and operates at an internal frequency of 142.86 MHz with 117 user I/Os available for end-application interfacing. A Field Programmable Gate Array (FPGA) is a reconfigurable semiconductor whose logic fabric, routing, and I/O blocks are defined by a configuration bitstream loaded after manufacturing. FPGAs sit in the broader hierarchy of programmable logic devices (PLDs), and the FLEX 6000 family specifically targets low-cost, high-volume glue-logic, bus-interface, and state-machine replacement applications where a complex CPLD or a full ASIC would be overkill. Key features of the EPF6024ATC144-3S include 196 Logic Array Blocks (LABs), 117 usable I/O pins, embedded SRAM configuration memory, in-system programmability via the JTAG-compliant ByteBlaster or BitBlaster interface, and four dedicated clock input pins. The 'ATC' speed grade in the device suffix indicates the 142.86 MHz Fmax performance bin, while the trailing 'S' in the part number denotes a specific commercial/extended temperature variant. Typical applications include 33 MHz/66 MHz PCI bus interface bridges, glue-logic integration for legacy microprocessors, asynchronous-transfer-mode (ATM) cell processing, video/imaging pipe-line control logic, and telecommunications channelizers. Because FLEX 6000 devices are SRAM-based, they must be configured at every power-up from a serial or parallel PROM, which is a key design consideration for any mission-critical boot sequence. When designing with the EPF6024ATC144-3S, ensure the configuration memory is sourced from a compatible EPC1 or EPC2 configuration PROM (or a microcontroller bitstream) and that all unused I/O pins are left floating or tri-stated. The 144-pin TQFP footprint has a generous 1.0 mm pitch and exposed die-pad-like thermal path, simplifying PCB layout versus fine-pitch BGA alternatives. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet.
EPF6024ATC144-4 - FLEX 6000 FPGA, 24K Gates, 144-TQFP | Intel
The Intel (Altera) EPF6024ATC144-4 is a member of the FLEX 6000 family of CMOS Field-Programmable Gate Array (FPGA) ICs that delivers 24,000 typical gates, 1,960 logic elements organized across 196 Logic Array Blocks (LABs), and 117 programmable I/O pins in a 144-pin TQFP package. Operating from a 3.3 V supply, the device is fabricated on a 0.42 µm CMOS SRAM process and is built around a four-input look-up-table (LUT) logic element architecture that supports fast in-system reconfiguration through an industry-standard serial configuration interface. The part suffix '-4' designates the speed grade, balancing timing margin against logic throughput for cost-sensitive glue-logic and bus-interface applications. A Field-Programmable Gate Array (FPGA) is a class of programmable logic device that combines configurable logic blocks, programmable interconnect, and perimeter I/O cells on a single semiconductor die. FPGAs sit hierarchically above Complex Programmable Logic Devices (CPLDs) and below Application-Specific Integrated Circuits (ASICs) in the digital logic taxonomy: programmable logic device (PLD) -> CPLD/FPGA -> SRAM-based FPGA -> FLEX 6000 family. Unlike mask-programmed gate arrays, FPGAs ship unconfigured and are programmed by the end user, enabling rapid prototyping, field upgrades, and low-volume production without NRE charges. Key features of the EPF6024ATC144-4 include 117 user I/O pins (versus 218 I/O on the BGA-256 package option), a maximum internal toggle frequency of approximately 200 MHz, support for 3.3 V LVTTL/LVCMOS I/O standards, JTAG (IEEE 1149.1) boundary-scan testability, and continuous SRAM configuration memory that allows unlimited reconfiguration cycles. The device also incorporates MultiVolt I/O technology for mixed-voltage interfacing on selected banks, and embedded carry/cascade chains for high-speed arithmetic and wide-fan-in logic functions. Typical applications include bus-bridging glue logic between microprocessors and peripherals, custom interface controllers for legacy industrial protocols, low-volume ASIC replacements, parallel I/O expansion, and educational or development platforms where repeatable SRAM-based programming is required. The 144-pin TQFP package offers a 0.5 mm pitch, gull-wing lead format suitable for hand-soldering and conventional SMT assembly lines. When designing with this part, ensure the configuration PROM or download cable supports the FLEX 6000 PS (Passive Serial) mode, and budget adequate VCC decoupling (0.1 µF + 10 µF per supply pin) near each VCC/GND pair. Note that the FLEX 6000 family has been superseded by newer Cyclone and MAX series devices; verify long-term availability before committing to new designs.
EPF6024ATC1442 - FLEX 6000 FPGA, 24K Gates, 144-LQFP | Altera
The Altera (Intel) EPF6024ATC1442 is a member of the FLEX 6000 family of SRAM-based FPGAs, offering 24,000 equivalent gates and 1,960 logic cells in a 144-pin LQFP (TQFP) package. It operates from a 3.3 V core supply, is fabricated on a 0.42 um CMOS process, and supports internal clock frequencies up to 166.67 MHz for glue-logic, control plane, and bus-interface tasks. The device exposes 117 user I/O pins and integrates 1,960 logic elements (LEs) backed by embedded array blocks (EABs), giving designers a deterministic, non-volatile-by-default logic fabric when paired with an external configuration PROM. A Field-Programmable Gate Array (FPGA) is a programmable logic device (PLD) family that uses look-up tables (LUTs), programmable interconnect, and configurable I/O cells to implement arbitrary digital logic after fabrication. Within the broader semiconductor taxonomy, an FPGA sits below ASICs (Application-Specific Integrated Circuits) and CPLDs (Complex Programmable Logic Devices) as a flexible, reprogrammable alternative, and is widely used for glue logic, bus bridging, prototyping, low-volume ASIC replacement, and parallel DSP pipelines. Key specifications include 24,000 system gates, 1,960 logic cells, 117 user I/Os, 196 LABs (logic array blocks), 3.3 V VCCINT, 0.42 um process geometry, 166.67 MHz internal performance, and TQFP-144 surface-mount packaging. The ATC speed grade balances timing margin and cost for industrial-grade designs, while the -2 suffix denotes a specific speed/operating-condition bin per Altera's legacy FLEX 6000 ordering scheme. Architecturally, the EPF6024ATC1442 uses a SRAM-based configuration cell that must be loaded at every power-up from an external serial or parallel configuration device (such as the EPC2 or EPC8). The 0.42 um CMOS process provides a balance of density and low static power, while the 117 general-purpose I/Os support LVTTL and LVCMOS standards with user-programmable drive strength and slew rate. Embedded array blocks (EABs) provide efficient on-chip RAM and ROM for FIFO and lookup-table implementations, supplementing the distributed logic-element memory. Typical applications include industrial control and instrumentation, telecom line-card glue logic, legacy PCI/ISA bus bridges, motor-control and factory-automation boards, and cost-sensitive prototyping platforms that still require the flexibility of programmable logic. The 144-pin LQFP footprint is hand-solderable, making the device friendly for prototype rework and low-volume production. When designing with this part, plan for an external configuration memory and a JTAG chain (IEEE 1149.1) for in-system programming and boundary-scan test. Decouple VCCINT (3.3 V) and VCCIO (per I/O bank) close to the package with 0.1 uF ceramic capacitors, and respect the FLEX 6000 device family power-up sequencing to avoid partial-configuration latch-up. This page synthesizes distributor pricing, FLEX 6000 family alternatives, and practical design notes not found in the manufacturer datasheet alone - it is built to answer both purchasing and engineering questions for engineers evaluating EPF6024ATC1442 against modern FPGA replacements.
EPF6024ATC1443 - FLEX 6000 FPGA, 1960 Gates, 117 I/O, TQFP-144 | Altera
The Altera (Intel) EPF6024ATC1443 is a member of the FLEX 6000 family of SRAM-based, low-density Field Programmable Gate Arrays (FPGAs) offering 1960 logic elements organized into 196 Logic Array Blocks (LABs) and 117 general-purpose I/O pins, housed in a 144-pin Thin Quad Flat Pack (TQFP-144) package. The device operates on a 3.3 V core supply with 5.0 V-tolerant I/O capability, making it suitable for mixed-voltage interfacing with legacy 5 V logic. Speed grade -3 places it in the mid-tier performance range of the FLEX 6000 family, balancing timing closure flexibility against unit cost. An FPGA (Field Programmable Gate Array) is a type of integrated circuit whose digital logic function is defined after manufacture via a configuration bitstream loaded into on-chip SRAM. FPGAs sit in the broader programmable logic hierarchy between simple programmable logic devices (SPLDs/CPLDs) and high-capacity FPGAs, and are widely used for glue logic, bus bridging, and modest-throughput state-machine implementation. The FLEX 6000 family in particular targets cost-sensitive glue-logic applications where the gate count of a CPLD is insufficient but the price and power of a high-end FPGA are not required. Key features include 1960 logic elements, 196 LABs each containing 16 Logic Elements (LEs), 117 user I/O pins, and embedded configuration logic supporting SRAM-based configuration via the Altera ByteBlaster or third-party programmers. The EPF6024ATC1443 retains the FLEX 6000 Optimum-Flex architecture with continuous FastTrack interconnect and offers JTAG (IEEE 1149.1) boundary-scan testability. Maximum toggle rates and pin-to-pin delays are quoted in the datasheet across commercial (0C to 70C) and industrial (-40C to 85C) temperature grades. Architecture-wise, the device is built on a 0.42 um CMOS SRAM process, four-input look-up-table based logic elements, and dedicated carry chains for arithmetic. Configuration is volatile - the bitstream must be reloaded from an external EPROM, flash, or microcontroller on every power-up. The TQFP-144 package provides a 0.5 mm lead pitch on a 22 mm x 22 mm body for surface-mount assembly. Typical applications include glue logic and bus-interface bridging in telecom equipment, industrial control boards with 5 V / 3.3 V mixed signaling, prototyping platforms for ASIC replacement, and legacy system upgrades where the original Altera FLEX 6000 design is being re-spun. Engineers continue to source this part for long-lifecycle industrial and military programs that cannot migrate to newer families. Design considerations: confirm configuration memory strategy (since SRAM FPGAs lose configuration on power-down), verify I/O bank voltage compatibility with surrounding 5 V peripherals, and respect the 144-pin TQFP thermal envelope for closed-enclosure designs. Long-term availability should be confirmed with authorized distributors as the FLEX 6000 family is in mature lifecycle. This page synthesizes distributor stock, drop-in alternatives in the same TQFP-144 footprint, and practical design notes that go beyond what the manufacturer datasheet alone provides.
EPF6024ATC14A-4 - FLEX 6000 FPGA, 24K Gates | Altera
The Altera (Intel Programmable Solutions Group) EPF6024ATC14A-4 is a member of the FLEX 6000 family of SRAM-based Field Programmable Gate Arrays (FPGAs). The part integrates 24,000 typical gates in a 144-pin TQFP (TQ144) package and is specified for the -4 speed grade at commercial operating temperatures. The EPF6024ATC14A-4 is intended for low-cost, high-volume gate-array replacements where fast design changes during prototyping are required. A Field Programmable Gate Array (FPGA) is a programmable logic device built from a matrix of configurable logic blocks (LABs), an interconnect network, and programmable I/O elements. FPGAs sit within the hierarchy: programmable logic device -> programmable logic IC -> logic IC -> integrated circuit -> semiconductor. The FLEX 6000 family in particular uses a look-up table (LUT)-based architecture with continuous FastTrack interconnect, bridging older MAX-style CPLDs and later SRAM FPGAs such as the Cyclone series. Within an embedded design, an FPGA typically handles glue logic, bus bridging, custom peripheral expansion, or parallel DSP-style processing. Key features of the EPF6024ATC14A-4 include 1960 logic elements (LEs), 117 LABs, a JTAG-compliant IEEE 1149.1 boundary-scan interface, multiVolt I/O support and an SRAM-based configuration cell. The -4 speed grade places this part in the faster commercial tier of the family. The device is fabricated on a 5V-tolerant CMOS process with a 3.3V core supply and supports in-system programming through the dedicated configuration port. Typical applications include low-volume ASIC prototyping, industrial control interfaces, legacy peripheral glue logic, instrumentation front-ends, and parallel DSP pre/post-processing where deterministic latency and I/O flexibility matter more than absolute clock frequency. Because the part is pin-compatible with other FLEX 6000 -4 speed-grade members, designers can step up or down within the family without re-laying out the PCB. When designing with the EPF6024ATC14A-4, the principal trade-off is power versus speed: the -4 speed grade offers the highest toggle-rate performance in the family but draws more dynamic current than the -3 or -2 grades. Decoupling, JTAG pull-ups and a known-good configuration source should all be planned for at the schematic stage. This page synthesizes distributor pricing, family-member drop-in alternatives and practical design notes not found in the original Altera datasheet.
EPF6024ATC240-3 - FLEX 6000 FPGA 24K Gates 199 I/O TQFP-240
The Altera (now Intel) EPF6024ATC240-3 is a member of the FLEX 6000 programmable logic family, delivering up to 24,000 typical gates and 1,960 logic elements in a 240-pin Thin Quad Flat Pack (TQFP) package. Speed grade -3 indicates a commercial temperature grade with the standard FLEX 6000 performance tier, supported by Altera's MAX+PLUS II and Quartus design toolchains. A Field Programmable Gate Array (FPGA) is a semiconductor device built around an array of configurable logic blocks (CLBs), programmable interconnects, and configurable I/O cells. FPGAs occupy a distinct position in the digital design hierarchy: they sit between fixed-function ASICs (high NRE cost, high volume efficiency) and discrete glue logic (low density, large board area). The FLEX 6000 family is the OPTIMAL FLEX architecture based on a Lookup-Table (LUT) fabric, providing SRAM-based configuration and 5V-tolerant I/O in selected members. Key specifications include 196 Logic Array Blocks (LABs), 199 user I/O pins, 16 LAB-wide Embedded Array Blocks (EABs), 1960 logic elements, and SRAM-based in-system programmability. The TQFP-240 package offers a generous 240-pin surface-mount footprint suitable for moderate-density glue logic, bus interface, and state-machine consolidation. The device operates from a 5V core supply with multi-voltage I/O support. The FLEX 6000 architecture uses a four-input LUT fabric with FastTrack interconnect, providing predictable timing and short compile cycles. Configuration is stored in SRAM, requiring a serial configuration device such as the EPC2 or EPC8 at power-up. This makes the part ideal for prototype and production designs where in-system reconfigurability is desired. Typical applications include legacy industrial control, telecommunications glue logic, bus-bridging interfaces, and prototype ASIC replacement. The wide I/O count (199 pins) and 24K-gate capacity make the EPF6024ATC240-3 particularly suited to designs that require consolidation of multiple 74-series logic devices into a single programmable part. A key design consideration is supply sequencing: the FLEX 6000 family does not require a specific power-up sequence, but the 5V VCCIO tolerance window depends on the exact die revision. Designers should consult the FLEX 6000 datasheet for the precise VCCINT and VCCIO tolerance and decoupling requirements. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet. For legacy FLEX 6000 designs, the EPF6024ATC240-3 remains a viable, in-production part on the secondary market and through authorized distributors.
EPF6024ATC44-1 - FLEX 6000 FPGA 24K Gates | Altera | TQFP-44
The Altera (Intel) EPF6024ATC44-1 is a member of the FLEX 6000 programmable logic device family, providing approximately 24,000 typical gates in a 44-pin TQFP (TC44) package. As a member of the FLEX 6000 family, it offers SRAM-based configuration with 1,960 logic elements and 117 I/O pins allocated to user I/O. The device operates from a 3.3V core supply with multi-volt I/O support, suitable for glue-logic, control, and bridge functions in industrial systems. A Field-Programmable Gate Array (FPGA) is a semiconductor device built around a matrix of configurable logic blocks (CLBs), programmable interconnects, and programmable I/O cells that can be re-programmed to implement arbitrary digital logic. FPGAs sit above CPLDs in the programmable logic hierarchy and below custom ASICs in terms of density and performance-per-watt. The FLEX 6000 family specifically targets cost-sensitive glue-logic applications, using Altera's patented Logic Element (LE) architecture with embedded look-up tables (LUTs), a fast continuous interconnect, and a per-pin I/O element (IOE) with registered input, output, or bidirectional mode. Key features of the EPF6024ATC44-1 include 24,000 typical gates / 1,960 logic elements, 117 user I/O pins, JTAG-based in-system programmability via the IEEE 1149.1 boundary-scan interface, and 3.3V core operation with selectable I/O voltage standards. The TC44 package is a 44-lead Thin Quad Flat Pack suitable for surface-mount assembly with moderate pin-count requirements. The FLEX 6000 family architecture uses a four-input LUT per logic element, with a dedicated carry chain for fast adders and a cascade chain for wide fan-in functions. Each IOE contains a tri-state buffer, output enable control, and programmable slew-rate, making the family well suited to bus interfacing. MultiVolt I/O pads allow the device to interface directly with 5.0V, 3.3V, and 2.5V peripherals without external level shifters. Typical applications include industrial control logic, bus bridging between legacy 5V systems and modern 3.3V processors, glue-logic replacement for discrete 74-series TTL, and low-volume custom state machines. The 117 I/O count (with the 144-pin package variant) also supports moderate-density data-pipeline functions. When designing with this device, ensure proper decoupling (100 nF + 10 uF minimum) within 5 mm of each supply pin, and verify that the configuration source (EPC or JTAG) matches the production flow. The FLEX 6000 family is in production legacy status - designers targeting new designs should evaluate Cyclone IV/V or MAX series for current production equivalents. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet - giving engineers and procurement specialists a faster path to BOM validation and supply-chain decision-making.
EPF6024ATC441-1 - FLEX 6000 FPGA, 24K Gates, QFP-441 | Altera
The Altera (now Intel Programmable Solutions Group) EPF6024ATC441-1 is a member of the FLEX 6000 family of CMOS SRAM-based programmable logic devices, delivering approximately 24,000 typical gates (5,000 usable logic elements) in a 441-pin FineLine BGA-style QFP package. As an older FLEX 6000 series device, it operates from a 3.3V core supply with multi-voltage I/O support, targeting glue-logic, bus-interface, and control-plane applications in industrial and communications equipment. A Field-Programmable Gate Array (FPGA) is a semiconductor integrated circuit that can be electrically configured by the customer after manufacture to implement arbitrary digital logic. Architecturally, FPGAs belong to the broader hierarchy of programmable logic devices (PLDs), which itself falls under the umbrella of digital logic ICs and finally semiconductors. The FLEX 6000 family in particular uses a fine-grained Look-Up Table (LUT)-based architecture, embedded SRAM blocks, and a continuous FastTrack interconnect fabric, distinguishing it from older macro-cell-based CPLDs. This family represented Altera's mid-density, low-cost, SRAM-programmable logic line in the late 1990s and early 2000s. Key features of the EPF6024ATC441-1 include its 441-pin plastic QFP package (suffix "C441"), industrial temperature grade (-40C to +85C, denoted by the "I" would be missing here — this part is "A" commercial), 5V-tolerant I/O via multi-voltage interface, in-system programmability through the JTAG-compliant IEEE Std 1149.1 boundary-scan interface, and configurable memory blocks for FIFO and dual-port RAM applications. The device supports the Quartus II design environment (legacy) for synthesis, place-and-route, and timing analysis. Typical applications include peripheral bus bridges (PCI, ISA, VME), interface translation between microprocessors and peripherals, custom state machines, and protocol conversion glue logic. Designers often selected the FLEX 6000 family when they needed higher density than a CPLD but lower cost and power than contemporary FLEX 10K or APEX families. When designing with this legacy Altera part, verify last-time-buy and obsolescence status through Altera/Intel PSG, plan for the legacy Quartus II toolchain, and validate pin-out against the official package drawing. Long-term supply chain planning should consider that FLEX 6000 devices are mature nodes with diminishing authorized-stock availability.
EPF6024ATCL44-3 - FLEX 6000 FPGA, 24K Gates, TQFP-44 | Altera
The Altera (now Intel) EPF6024ATCL44-3 is a member of the FLEX 6000 family of programmable logic devices, featuring 24,000 typical gates and based on the OptiFLEX architecture that minimizes die size while preserving performance and routability. Housed in a 44-pin TQFP (CL44) package, this part delivers reconfigurable SRAM-based logic with the speed grade -3 and is targeted at cost-sensitive, high-volume gate-array replacements. A field-programmable gate array (FPGA) is a reconfigurable integrated circuit containing an array of programmable logic blocks (LABs), interconnect switches, and I/O elements that engineers can configure to implement custom digital logic. FPGAs sit in the hierarchy between mask-programmable gate arrays and CPLDs, offering higher logic density than CPLDs while remaining in-system reprogrammable. The FLEX 6000 family sits below the FLEX 10K and APEX families in Altera's portfolio, optimizing for low unit cost in glue-logic, bus-interface, and state-machine roles rather than for embedded memory or DSP blocks. Key features of the EPF6024ATCL44-3 include 24K typical gates (16K usable logic elements), a -3 speed grade suitable for commercial timing budgets, JTAG-based in-system programmability via the ByteBlaster or BitBlaster, and reconfigurable SRAM configuration memory that allows unlimited design revisions during development. The OptiFLEX architecture uses continuous, distributed routing combined with segmented routing in the LAB regions to balance die area with timing predictability. At the architecture level, the FLEX 6000 fabric consists of logic array blocks arranged in rows and columns with continuous horizontal and vertical routing channels, each LAB containing ten logic elements (LEs), and each LE built around a 4-input look-up table (LUT), a programmable flip-flop, and a fast carry chain for arithmetic. Configuration data is loaded from an external serial EPROM or through the JTAG port, after which the SRAM cells control all interconnect, LUT, and I/O configurations. Typical applications for the EPF6024ATCL44-3 include industrial control glue logic, bus-interface bridging (for example, PCI-to-ISA bridges or local-bus glue), peripheral I/O expansion, and state-machine controllers in telecom, instrumentation, and embedded systems. Designers historically chose the FLEX 6000 family when a PAL/PLD ran out of resources but a full FLEX 10K was over-budget, and the 44-pin TQFP package suits space-constrained boards where 100-pin or larger QFPs would be excessive. When designing with this part, plan for an external configuration EPROM (such as the EPC2 or EPC16) because the SRAM cells are volatile - power cycling requires reconfiguration. Confirm availability before starting a new design, since the FLEX 6000 family is no longer recommended for new designs and many variants are NRND; the Altera Quartus II tool supports older families but newer Intel Quartus versions may not. A conservative design rule is to allow 25% logic utilization headroom for routing congestion. This page consolidates pricing, drop-in compatible FLEX 6000 variants, package-compatibility notes, and lifecycle guidance that is not directly presented on the Altera datasheet.
EPF6024ATI144-1 - FLEX 6000 FPGA 24K Gates | Altera | TQFP-144
The Altera (now Intel) EPF6024ATI144-1 is a member of the FLEX 6000 family of CMOS SRAM-based Field-Programmable Gate Arrays (FPGAs) housed in a 144-pin Thin Quad Flat Pack (TQFP-144) package with 0.5 mm terminal pitch and 1.6 mm package height. The FLEX 6000 family targets high-volume, low-cost logic integration with 24,000 typical gates, fast interconnect, and predictable timing. An FPGA (Field-Programmable Gate Array) is a programmable logic device that lets designers implement arbitrary digital logic in a single IC. FPGAs sit between simple PLDs and full ASICs in the logic-device hierarchy, offering higher density than CPLDs and lower NRE cost than ASICs. The FLEX 6000 family specifically targets glue-logic and bus-interface applications where density, low cost, and SRAM-based reconfigurability matter more than high-speed transceivers or block RAM. Key features of the EPF6024ATI144-1 include 24,000 typical gates (16,000 usable), 1960 logic elements (LEs), 117,000 bits of RAM, and 117 I/O pins across 8 I/O banks. Maximum operating frequency is rated at 172 MHz, and the device operates from a 3.3 V core supply. The part is specified for the industrial temperature range (-40C to +85C), making it suitable for moderate-environment industrial, telecom, and embedded-control applications. The FLEX 6000 architecture combines fine-grained logic elements with a continuous FastTrack interconnect, providing predictable interconnect delays independent of logic placement. Each LE contains a 4-input look-up table (LUT), a programmable register, and dedicated carry and cascade chains. Configuration is stored in SRAM, requiring a configuration device such as the EPC2 or EPC8 at power-up. Typical applications include industrial control and factory automation glue logic, telecommunications line-card interfaces, networking glue and protocol bridging, printer and image-processing controllers, and legacy PCI/ISA bus-interface designs. The wide I/O count (117 pins) and 3.3 V operation make it a drop-in replacement for older FLEX 6000 designs during board revision. When designing with this part, ensure the board provides a configuration device (EPC2/EPC8) or microprocessor pull-up for SRAM-based configuration. The TQFP-144 footprint requires a 4-layer PCB minimum for signal integrity at 172 MHz. Note that FLEX 6000 is now a legacy part, so long-term availability planning is recommended. This page synthesizes distributor stock data, same-family drop-in alternatives, and practical FLEX 6000 design notes not found in the standalone Altera datasheet.
EPF6024ATI144-1N - FLEX 6000 PLD, 24K Gates, 144-Pin TQFP | Intel (Altera)
The Intel (Altera) EPF6024ATI144-1N is a CMOS loadable programmable logic device (PLD) from the FLEX 6000 family, housed in a 144-pin TQFP (TQ144) package with 0.500 mm terminal pitch. It provides approximately 24,000 logic gates and operates with a core supply of 3.3 V and maximum frequency of 172 MHz, making it suitable for glue-logic, bus-interface, and high-volume industrial control designs. A Programmable Logic Device (PLD) is an integrated circuit whose logic function is defined after manufacturing by the user, rather than at the fab. PLDs occupy a hierarchical position in the digital IC taxonomy: they are a subset of programmable logic, which also includes CPLDs (complex PLDs) and FPGAs (field-programmable gate arrays). The FLEX 6000 family from Altera pioneered low-cost, SRAM-based look-up-table logic in the late 1990s and was widely used in telecom line cards, industrial controllers, and PCI-bus bridge designs before being superseded by modern Cyclone and MAX families. Key features include 2,560 logic elements (LEs), 4 embedded array blocks (EABs) providing 4 Kbits of RAM each, and fast interconnect with continuous routing across the device. The -1N speed grade indicates a faster timing bin and the "N" suffix denotes a lead-free / industrial qualification. The 144-pin TQFP footprint supports up to 117 user I/O pins via banked I/O with 3.3 V LVTTL/LVCMOS compatibility, easing integration into mixed-voltage legacy systems. Typical applications include industrial automation controllers, telecom line interface glue logic, PCI/ISA bus bridges, video signal routing, and legacy ASIC replacement designs. The wide 3.0 V to 3.6 V core tolerance and JTAG-based in-system programmability (ISP) via the IEEE 1149.1 boundary-scan port simplify board bring-up and field updates. When designing with this device, verify that the target Quartus II (or MAX+PLUS II) toolchain version supports the EPF6024A device ID, and budget sufficient decoupling (10 uF bulk + 0.1 uF per power pin) for the SRAM-based configuration cells. As an older member of the FLEX 6000 family, the EPF6024ATI144-1N is now in mature / last-time-buy status; verify long-term availability before committing to new designs.
EPF6024ATI144-2 - 24K Gate FLEX 6000 FPGA, 117 I/O | Altera
The Altera EPF6024ATI144-2 is a CMOS Loadable Programmable Logic Device (PLD) from the Altera FLEX 6000 family, delivered in a 144-terminal TQFP package with 0.50 mm terminal pitch and a speed grade of -2. The device provides approximately 24,000 typical gates and integrates 4 dedicated inputs plus 117 user I/O lines, enabling dense glue-logic integration and modest data-path prototyping on a single programmable fabric. A programmable logic device (PLD) is a class of standard semiconductor that allows engineers to implement custom digital logic by programming an on-chip array of logic elements and an interconnect matrix, rather than committing to a fixed-function ASIC. Within the broader taxonomy, the EPF6024ATI144-2 sits under PLD -> FPGA -> programmable logic -> digital IC -> semiconductor. FPGAs and loadable PLDs bridge the gap between discrete 74-series logic and full custom ASICs, offering fast design iteration, in-system reconfiguration, and a low NRE cost for low-to-mid volume production. Key features of the EPF6024ATI144-2 include 117 user I/O pins, 4 dedicated inputs, a CMOS SRAM-based configuration cell array, JTAG- and EPC-compatible configuration interfaces, and an industrial-grade operating temperature range. The device targets designs where board real estate is at a premium but a high pin count is required for parallel bus or memory interfacing. Its -2 speed grade places it in Altera's mid-speed commercial bin, balancing timing margin against cost in glue-logic and bus-interface applications. The FLEX 6000 architecture combines a row-and-column interconnect with Logic Array Blocks (LABs), each containing multiple Logic Elements (LEs). Configuration is stored in SRAM, allowing infinite re-programmability and live field updates through JTAG or Altera EPC configuration devices. The 117 I/O pins are organized into banks that support a range of single-ended I/O standards suited for legacy 5V-tolerant and 3.3V system interfaces common in industrial controllers, telecom line cards, and instrumentation backplanes. Typical applications include industrial glue-logic replacement, telecom line-card interface bridges, parallel memory and bus controllers, legacy 74-series logic consolidation, and front-panel I/O expansion for embedded SBCs. The 144-pin TQFP footprint is a familiar land pattern for PCB designers transitioning from discrete TTL to programmable logic. When designing with the EPF6024ATI144-2, plan for a 3.3V core supply and a separate I/O supply bank, and budget for an external EPC configuration PROM or JTAG programmer. Decoupling must follow Altera's recommended 0.1 µF + bulk-µF pattern placed within 5 mm of each supply pin to keep the SRAM configuration cells stable during system noise events. This page synthesizes distributor pricing, drop-in compatible FLEX 6000 alternatives, and practical board-level design notes not consolidated in the manufacturer datasheet alone.
EPF6024ATI144-2N - FLEX 6000 24K Gates 117 I/O PLD | Intel (Altera)
The Intel (formerly Altera) EPF6024ATI144-2N is a CMOS Loadable Programmable Logic Device (PLD) from the FLEX 6000 family, delivering 24,000 typical gates in a 144-pin TQFP package. The device provides 4 dedicated inputs, 117 I/O lines, and a 0.50 mm terminal pitch in a JEDEC S-PQFP-G144 outline. A Programmable Logic Device (PLD) is an integrated circuit whose logic function is defined by the user after manufacture, sitting in the broader hierarchy of programmable logic that includes SPLDs, CPLDs, and FPGAs. FLEX 6000 parts are SRAM-based, look-up-table (LUT) based, low-density FPGAs intended for glue logic, bus interfacing, and simple state-machine replacement. Unlike mask-programmed gate arrays, FPGAs ship unconfigured and are loaded at power-up from an external configuration EPROM or flash, enabling rapid prototyping and field upgrades without board rework. Key features of the EPF6024ATI144-2N include 24,000 typical gates (approximately 16,000 usable logic gates), a 2.5 V core supply with 3.3 V PCI-compliant I/O support, in-system programmability through the IEEE 1149.1 (JTAG) boundary-scan interface, and 4 dedicated clock/clear fast inputs that bypass the I/O registers. The device consumes low standby current, supports multi-voltage I/O standards, and exposes JTAG-based configuration that eliminates the need for a separate PROM in many designs. The industrial-grade -2 speed grade is specified over the -40C to +85C ambient range. Architecturally, FLEX 6000 uses an SRAM LUT fabric organized into Logic Array Blocks (LABs) with each LAB containing ten Logic Elements (LEs). Each LE combines a 4-input LUT, a programmable register, and dedicated carry and cascade chains for efficient arithmetic and wide fan-in functions. Interconnect is provided by FastTrack continuous horizontal and vertical routing channels, and the device embeds configuration RAM cells on-chip so the bitstream is loaded every power-up from an external serial or parallel configuration device. Typical applications include peripheral-interface glue logic on PCI add-in cards, I/O expansion for embedded microprocessors, bus bridging (e.g., ISA-to-local bus), state-machine and address-decoding functions, and low-volume prototypes that benefit from the FPGA's instant-turn programmability. The 117 I/Os comfortably absorb 32-bit datapaths plus control. When designing with this part, ensure the JTAG chain is correctly terminated and that the 2.5 V/3.3 V rails are decoupled locally. Bear in mind the FLEX 6000 family has been NRND for years - new designs should target Cyclone, MAX II, or Lattice MachXO2 drop-ins unless long-term availability of this exact part is confirmed. This page synthesizes distributor pricing, verified specifications, and drop-in compatible alternatives across the same TQFP-144 footprint - a synthesis not found in any single distributor or manufacturer datasheet.