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EPF6024ATC240-3 - FLEX 6000 FPGA 24K Gates 199 I/O TQFP-240
EPF6024ATC240-3

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.

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EPF6024ATC44-1 - FLEX 6000 FPGA 24K Gates | Altera | TQFP-44
EPF6024ATC44-1

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.

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EPF6024ATC441-1 - FLEX 6000 FPGA, 24K Gates, QFP-441 | Altera
EPF6024ATC441-1

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.

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EPF6024ATCL44-3 - FLEX 6000 FPGA, 24K Gates, TQFP-44 | Altera
EPF6024ATCL44-3

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.

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EPF6024ATI144-1 - FLEX 6000 FPGA 24K Gates | Altera | TQFP-144
EPF6024ATI144-1

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.

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EPF6024ATI144-1N - FLEX 6000 PLD, 24K Gates, 144-Pin TQFP | Intel (Altera)
EPF6024ATI144-1N

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.

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EPF6024ATI144-2 - 24K Gate FLEX 6000 FPGA, 117 I/O | Altera
EPF6024ATI144-2

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.

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EPF6024ATI144-2N - FLEX 6000 24K Gates 117 I/O PLD | Intel (Altera)
EPF6024ATI144-2N

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.

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EPF6024ATI144-3 - FLEX 6000 FPGA, 24K Gates, 117 I/O | Altera | 144-LQFP
EPF6024ATI144-3

EPF6024ATI144-3 - FLEX 6000 FPGA, 24K Gates, 117 I/O | Altera | 144-LQFP

The Altera (Intel® Programmable Solutions Group) EPF6024ATI144-3 is a FLEX 6000 series Field-Programmable Gate Array (FPGA) housed in a 144-pin LQFP package (TQFP variant) with 1960 logic elements/cells, 117 user I/Os, and a 3.3V core supply. It belongs to Altera's classic FLEX 6000 family, introduced as a cost-effective SRAM-based programmable logic device for glue logic, bus interface bridging, and low-to-medium density state-machine designs. A Field-Programmable Gate Array (FPGA) is a semiconductor IC containing an array of configurable logic blocks (CLBs), programmable interconnect, and programmable I/O cells that engineers can configure post-manufacture to implement arbitrary digital logic. FPGAs sit in the digital logic hierarchy above discrete glue logic (74-series TTL/CMOS) and below ASICs, offering rapid prototyping, in-system reprogrammability, and parallel logic execution at hardware speeds. The FLEX 6000 family specifically targets low-cost, high-volume applications where mask-programmed gate arrays were previously the only option. Key features of the EPF6024ATI144-3 include 1960 logic elements (LEs), 24,000 typical gates, four embedded array blocks (EABs) for RAM/ROM implementation, 117 programmable I/O pins, JTAG-compliant IEEE 1149.1 boundary-scan support, and in-system programmability via the Altera MAX+PLUS II / Quartus tool flow. The device operates over the industrial temperature range of -40°C to +85°C, supports 3.3V VCCINT, and provides multi-voltage I/O support for interfacing with 5.0V, 3.3V, and 2.5V logic families. Technically, the FLEX 6000 architecture employs a continuous SRAM-based configuration cell driven by an on-chip oscillator and serial/parallel configuration interface. Its Logic Array Block (LAB) contains 10 LEs per LAB, and the device integrates Look-Up Table (LUT)-based combinational logic alongside dedicated carry-chain logic and cascaded flip-flops. Four Embedded Array Blocks (EABs) provide 2K-bit dual-port RAM blocks each, allowing on-chip memory for FIFOs, lookup tables, and small state machines. Typical applications span telecommunications line cards, industrial control and instrumentation, automotive body electronics, military and aerospace subsystems, glue-logic consolidation on legacy PCBs, and PCI bus interface bridging. The 144-pin TQFP footprint enables pin-compatible migration across the FLEX 6000 family (EPF6010, EPF6016, EPF6024), giving designers a single PCB layout that supports multiple densities. Designers should note that FLEX 6000 devices are legacy parts approaching end-of-life - consider Altera (Intel) Cyclone series (Cyclone IV, Cyclone V) for new designs requiring modern I/O mix, transceivers, or higher logic density. Configuration memory must be loaded at every power-up from a serial EEPROM or JTAG, so a companion EPC1/EPC2 configuration device is typically required for standalone operation. This page synthesizes distributor pricing, drop-in pin-compatible alternatives from the FLEX 6000 family, design notes for legacy FPGA retrofits, and verified parameters not consolidated on any single distributor listing.

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EPF6024ATI144-3N - 24K Gate FLEX 6000 FPGA, 144-LQFP | Intel (Altera)
EPF6024ATI144-3N

EPF6024ATI144-3N - 24K Gate FLEX 6000 FPGA, 144-LQFP | Intel (Altera)

The Intel (formerly Altera) EPF6024ATI144-3N is a member of the FLEX 6000 family of SRAM-based Field Programmable Gate Arrays, offering approximately 24,000 typical gates (1,960 logic elements) packaged in a 144-pin Low-profile Quad Flat Pack (LQFP, T144). It provides 117 user I/O pins and operates from a 3.3 V core supply, with the -3 speed grade indicating a faster -3 timing bin in the FLEX 6000 hierarchy. What is an FPGA? An FPGA (Field Programmable Gate Array) is a semiconductor IC whose logic function is defined by the customer after manufacturing, rather than at the wafer fab. In the programmable logic hierarchy, an FPGA sits above a CPLD (Complex Programmable Logic Device) and a SPLD (Simple PLD) in terms of density and routing flexibility. The FLEX 6000 family is Altera's classic high-volume, low-cost FPGA line built on a 0.5 µm SRAM process with a continuous, SRAM-based interconnect — requiring an external configuration EPROM at power-up. This places the EPF6024ATI144-3N above mask-ROM ASICs in flexibility but below CPLDs in non-volatility. Key features of the EPF6024ATI144-3N include: 1,960 logic elements, 117 user I/O pins, built-in SRAM configuration memory, JTAG (IEEE 1149.1) boundary-scan support, multi-volt I/O compatibility (3.3 V / 5 V tolerant inputs on selected banks), and the -3 speed grade placing it in the faster half of the FLEX 6000 speed bin. The 144-LQFP package is a surface-mount gull-wing form factor that is hand-solderable and compatible with low-cost PCB assembly. The 'N' suffix indicates lead-free / Pb-free terminal finish per industry convention. Architecturally, the FLEX 6000 family uses a continuous routing architecture known as the 'FastTrack Interconnect', with logic elements (LEs) grouped into Logic Array Blocks (LABs) of 10 LEs each, interconnected by row and column routing channels. This architecture favors designs with moderate register density and predictable timing closure — common in glue logic, bus interfaces, and peripheral controllers. Typical applications for the EPF6024ATI144-3N include industrial control glue logic, legacy peripheral bus bridges (PCI, ISA, VME), telecommunications line cards, and low-volume prototyping where mask-ROM ASICs are not economical. The 117 user I/O count suits designs that require wide parallel buses or multiple serial channels. The part is now considered NRND/last-time-buy by many distributors as the FLEX 6000 family has been superseded by the Cyclone series. When designing with this part, plan for an external configuration memory (EPC1, EPC2, or compatible), ensure the 3.3 V rail has clean decoupling within 25 mm of the supply pins, and verify I/O bank voltage compatibility before connecting to 5 V peripherals. Legacy FLEX 6000 designs should be migrated to Cyclone II or Cyclone IV for new production unless pin-compatibility with the existing 144-LQFP footprint is mandatory. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the original manufacturer datasheet.

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EPF81188AGC232-2 - 12K Gates FLEX 8000 FPGA 232-CPGA | Altera
EPF81188AGC232-2

EPF81188AGC232-2 - 12K Gates FLEX 8000 FPGA 232-CPGA | Altera

The Altera (now Intel PSG) EPF81188AGC232-2 is a member of the FLEX 8000 family of CMOS programmable logic devices (PLDs), providing 12,000 usable gates and 1,008 logic elements in a 232-pin Ceramic Pin Grid Array (CPGA) package. Fabricated on a 0.42 µm CMOS process and operating from a 5 V supply, the device supports system clock speeds up to 125 MHz and integrates up to 1,500 registers for sequential logic density. 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. Within the broader semiconductor hierarchy, an FPGA sits below application-specific integrated circuits (ASICs) but above discrete logic gates in terms of integration density. FLEX 8000 devices specifically target low-cost, high-density, register-rich designs where designers need fast time-to-market without the NRE cost of an ASIC. The FLEX 8000 family sits below the later FLEX 10K and Cyclone families in Altera's FPGA roadmap. Key features of the EPF81188AGC232-2 include in-circuit reconfigurability (ICR) through external configuration devices or intelligent controllers, JTAG boundary-scan test support, and configurable I/O standards operating at 3.3 V or 5 V. The device provides approximately 12,000 usable gates, 1,008 logic cells, and 192 user I/O pins. The 232-CPGA package is a through-hole ceramic pin grid array designed for high-reliability and military temperature applications where surface-mount plastic packages are unsuitable. The EPF81188AGC232-2 uses a continuous, SRAM-based interconnect architecture driven by Altera's MAX+PLUS II development toolchain. Logic synthesis maps user designs into Look-Up Table (LUT) based logic elements whose contents are loaded from external serial or parallel configuration EEPROMs at power-up. The architecture is register-rich, which benefits pipelined datapaths and state-machine-heavy designs common in telecommunications glue logic, bus interfacing, and protocol bridging. Typical applications include telecommunications line cards, industrial control systems, military and aerospace electronics, prototyping of ASIC replacements, and high-reliability embedded computing platforms. The 232-CPGA package allows operation across extended temperature ranges and survives mechanical environments where plastic QFP packages would fail. When designing with this part, ensure proper decoupling (0.1 µF ceramic at every supply pin) and a verified configuration clock source. Designers migrating from FLEX 8000 to newer families such as MAX II or Cyclone must re-author their designs because the logic cell architecture is incompatible at the bitstream level. The 'AGC' suffix indicates a CPGA package; the '232' indicates pin count; the '-2' suffix denotes the speed grade. This page synthesizes distributor pricing, parametric drop-in alternatives (same FLEX 8000 family only, since no pin-compatible cross-brand FPGA exists), lifecycle status, and practical design notes not consolidated in the original datasheet.

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EPF81188AGC232-2A - FLEX 8000 12K Gates 1008 Cells FPGA | Altera
EPF81188AGC232-2A

EPF81188AGC232-2A - FLEX 8000 12K Gates 1008 Cells FPGA | Altera

The Altera EPF81188AGC232-2A is a high-density FLEX 8000 family CMOS programmable logic device (PLD) delivering 12,000 usable gates and 1,008 logic elements in a 232-pin Ceramic Pin Grid Array (CPGA) package. It supports configurable I/O operation at 3.3 V or 5 V with a 5 ns propagation delay, enabling it to address glue-logic, bus-interface, and state-machine designs in legacy industrial, telecom, and military systems. A programmable logic device (PLD) is a digital semiconductor whose logic function and interconnect topology are defined by user-supplied configuration data, typically loaded from external non-volatile memory. The FLEX 8000 architecture sits within the PLD hierarchy as a register-rich, SRAM-based CPLD/FPGA hybrid family that combines fast combinatorial paths with abundant D-type registers, making it well suited for system-level integration tasks that mix control logic, datapath, and registered I/O. EPF81188 family members are positioned between pure CPLDs and high-density SRAM FPGAs in that they offer finer-grained logic blocks and faster deterministic timing. Key features include 184 user I/O pins with 4 dedicated inputs, a maximum internal operating frequency of 125 MHz, and 0.42 µm CMOS process technology. In-circuit reconfigurability (ICR) via external configuration devices or intelligent controllers allows the device to be reprogrammed in-system, and the registered output function plus JTAG boundary-scan testability simplify board-level integration. The CPGA-232 ceramic package targets harsh-environment and through-hole assemblies where leaded pins and hermeticity are preferred over plastic surface-mount. Architecturally, the EPF81188A implements a symmetric logic element array interconnected by continuous FastTrack channels, with each logic element containing a 4-input look-up table, a programmable register, and dedicated carry and cascade chains. The 0.42 µm CMOS process delivers the 5 ns pin-to-pin delay figure and the 125 MHz internal clock rate that define the speed grade suffix (-2A). Memory is implemented via embedded SRAM configuration cells that must be loaded at every power-up from an external configuration EPROM or via a microcontroller. Typical applications include legacy telecom backplane glue logic, industrial PLCs, military/aerospace control subsystems, custom bus bridges (ISA, VME, PCI), and ASIC prototyping where the FLEX 8000 family is already qualified. The 184 I/O pins make it attractive for designs that need to fan out to many parallel buses or legacy peripherals that newer low-I/O FPGAs cannot accommodate. When designing with this part, plan configuration memory in the BOM and verify timing closure with the Quartus II MAX+PLUS II toolchain, which is the original design flow for the FLEX 8000 family. The CPGA-232 package requires a through-hole socket or PCB with plated through-holes, which significantly increases board cost versus QFP/BGA alternatives - this trade-off should be justified by the need for hermeticity or field replaceability. This page synthesizes distributor pricing, packaging details, and pragmatic engineering guidance that goes beyond the bare datasheet to help purchasing and design teams decide whether the EPF81188AGC232-2A is the right FLEX 8000 variant for their next revision.

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EPF81188AGC232-3 - FLEX 8000 12K Gates 1008 Cells CPLD | Intel / Altera
EPF81188AGC232-3

EPF81188AGC232-3 - FLEX 8000 12K Gates 1008 Cells CPLD | Intel / Altera

The Intel / Altera EPF81188AGC232-3 is a member of the FLEX 8000 device family, a register-rich CMOS programmable logic device delivering 12,000 usable gates, 1008 logic elements, and 1,500 registers, housed in a 232-pin Ceramic Pin Grid Array (CPGA) package. Operating at 5 V with a 0.42 µm process technology and a 125 MHz internal frequency, this Complex Programmable Logic Device (CPLD) supports in-circuit reconfigurability (ICR) via external configuration devices or intelligent controllers, enabling field upgrades without board removal. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL/GAL macrocell arrays with a programmable interconnect matrix, sitting in the programmable logic hierarchy between simple SPLDs/CPLDs and SRAM-based FPGAs. CPLDs typically provide deterministic pin-to-pin propagation delays, abundant flip-flops, and wide combinational logic support, making them well suited for glue logic, bus interface bridging, and control state machines in mixed-signal systems. Key features of the EPF81188AGC232-3 include 188 user I/O pins, dedicated input pins, and 3.3 V or 5 V I/O signaling support. The 232-pin CPGA ceramic package delivers robust thermal and mechanical performance for industrial and military-grade applications. In-system programmability through the IEEE 1149.1 JTAG interface allows boundary-scan testing and configuration without removing the device from the board. From an architecture standpoint, the FLEX 8000 family uses a continuous, hierarchical interconnect structure called the FastTrack, providing predictable routing delays across all logic cells. Each Logic Element (LE) contains a 4-input look-up table (LUT), a programmable flip-flop, and dedicated carry and cascade chains for arithmetic and wide fan-in logic. This design produces consistent timing closure for synchronous designs. Typical applications include telecommunications line cards, industrial control boards, military/aerospace systems, and legacy peripheral glue-logic replacement where high I/O count and 5 V tolerance are required. The CPGA package supports through-hole mounting, ideal for high-reliability sockets and prototyping. When designing with the EPF81188AGC232-3, observe the 5 V supply tolerance and ensure JTAG chain integrity for in-system programming. Use Altera/Intel Quartus design software (legacy MAX+PLUS II is also supported) for synthesis, fitting, and timing analysis. This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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EPF81188AGC232-4 - FLEX 8000 12K-Gate FPGA, 232-CPGA, 125MHz | Altera
EPF81188AGC232-4

EPF81188AGC232-4 - FLEX 8000 12K-Gate FPGA, 232-CPGA, 125MHz | Altera

The Altera (Intel) EPF81188AGC232-4 is a member of the FLEX 8000 family of register-rich, high-density CMOS programmable logic devices, integrating approximately 12,000 usable gates and 1,008 logic cells around a 5V, 0.42 µm process. Per the FLEX 8000 device family datasheet, the part is housed in a 232-pin Ceramic Pin Grid Array (CPGA) package and supports system clocking up to 125 MHz, making it a mid-1990s workhorse for glue logic, bus interfacing, and DSP front-end blocks. A Field-Programmable Gate Array (FPGA) is a semiconductor integrated circuit whose logic function is defined by a customer-loaded configuration bitstream rather than by hard-wired masks. Within the broader taxonomy, the EPF81188AGC232-4 sits in the PLD (programmable logic device) branch, descending into SRAM-based FPGAs, then the FLEX 8000 sub-family of fine-grained, register-rich architectures. The FLEX 8000 line pioneered Look-Up-Table (LUT)-based logic elements with dedicated carry chains and a continuous routing fabric, and bridged the gap between classic PLDs (PAL/GAL) and modern System-on-Chip FPGAs. Key specifications include 1,008 logic cells, 184 user I/O pins, 12,000 usable gates, and 5.5 ns pin-to-pin propagation delay. The device supports configurable I/O standards at 3.3 V or 5 V, includes an in-circuit reconfigurability (ICR) interface for external configuration devices, and provides internal tri-state buses with 5-V tolerant I/O on 5-V variants. Operating junction temperature spans the commercial 0 °C to 70 °C window, with Altera's "-4" speed grade designating one of the faster timing bins available in the family. Architecturally, the EPF81188AGC232-4 uses a four-input LUT logic element, embedded array block (EAB) memory cells, and a FastTrack interconnect routing fabric. Each logic element contains a 4-bit LUT plus a programmable register, supporting either combinatorial or registered outputs. The 0.42 µm CMOS process and 5V core provide strong noise margin but relatively higher static current than modern nodes, and the SRAM configuration cell requires a boot PROM on every power-up. Typical applications include legacy telecom interface cards, industrial control backplanes, military/aerospace prototypes, and DSP coprocessor glue logic where hardware re-programmability matters more than raw logic density. The 232-pin CPGA is well-suited to through-hole prototyping sockets and ruggedized environments. Designers should treat the EPF81188AGC232-4 as NRND (Not Recommended for New Designs): Altera has migrated the FLEX 8000 family through multiple obsolescence cycles, and lead-time risk is significant. New designs should evaluate Cyclone IV/V or MAX II CPLDs for pin-compatible low-density replacements. If the CPGA package footprint is fixed, source through franchised distributors and confirm factory date code before commit. This page synthesizes distributor pricing, drop-in alternative FLEX 8000 speed/pinout variants, and practical obsolescence design notes not found in the original manufacturer datasheet.

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EPF81188AGC232-4N - 12K-Gate FLEX 8000 FPGA, 5V, CPGA-232 | Altera
EPF81188AGC232-4N

EPF81188AGC232-4N - 12K-Gate FLEX 8000 FPGA, 5V, CPGA-232 | Altera

The Altera EPF81188AGC232-4N is a member of the FLEX 8000 device family, a high-density, register-rich CMOS programmable logic device (PLD) offering up to 12,000 usable gates and approximately 1,500 registers, housed in a 232-pin Ceramic Pin Grid Array (CPGA) package and operating from a 5V supply. The device is built on a 0.42 µm CMOS process, integrates 1,008 logic cells, and is rated for system clock frequencies up to 125 MHz with a propagation delay of approximately 5.5 ns (speed grade -4). What is a FLEX 8000 FPGA? The FLEX (Flexible Logic Element Matrix) 8000 is Altera's classic SRAM-based programmable logic family introduced in the mid-1990s. It sits within the broader hierarchy of programmable logic devices (PLDs) -> CPLDs/FPGAs -> SRAM-based FPGAs -> register-rich, fine-grained logic arrays. The FLEX 8000 was Altera's first true SRAM-based FPGA, offering in-circuit reconfigurability (ICR) via external configuration devices such as EPC1 or EPC2, which let designers update logic in-system without removing the part from the board. Key features include 12K usable gates, 1,008 logic elements, 125 MHz maximum operating frequency, 5V core supply, in-system programmability through the IEEE 1149.1 JTAG interface or serial configuration ROM, and bidirectional I/O pins optimized for 5V TTL/CMOS signaling. The CPGA-232 ceramic package supports high-reliability and military temperature grade operation, making the -4N variant well-suited for harsh-environment designs. The FLEX 8000 architecture uses a fine-grained logic element (LE) structure with a four-input look-up table (LUT), a programmable register, and a dedicated carry chain for fast arithmetic. Each Logic Array Block (LAB) contains eight LEs, with FastTrack interconnect providing predictable, repeatable routing delays that simplify static timing analysis compared with channel-routed predecessors. Typical applications include legacy telecom interfaces, industrial control and factory automation glue logic, military and aerospace systems, avionics data acquisition front-ends, and in-system reconfigurable instrumentation. The 5V tolerant I/O simplifies migration from TTL-based designs without level shifters, and the JTAG-based reconfiguration enables field upgrades for deployed equipment. When designing with this part, observe the 5V VCCINT supply requirement and provide clean power decoupling with 0.1 µF and 10 µF capacitors near each supply pin. Configuration must be supplied by an Altera EPC1/EPC2 serial configuration PROM or by a microprocessor driving the serial configuration interface; the device does not retain configuration on power-down because it is SRAM-based. This page synthesizes distributor stock data, real-time cross-reference intelligence, FLEX 8000 family context, and practical configuration guidance not consolidated in any single manufacturer document.

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EPF81188AQC208-2 - FLEX 8000 FPGA 12K Gates 148 I/O 5V | Intel / Altera
EPF81188AQC208-2

EPF81188AQC208-2 - FLEX 8000 FPGA 12K Gates 148 I/O 5V | Intel / Altera

The Intel / Altera EPF81188AQC208-2 is a member of the FLEX 8000 family of CMOS SRAM-based Field Programmable Gate Arrays (FPGAs), packaged in a 208-pin BFQFP (PQFP). The device integrates approximately 12,000 usable gates, 1,008 logic cells, and 148 user I/O pins, delivering up to 125 MHz internal performance at a 5 V core supply. According to the Altera FLEX 8000 datasheet, the device belongs to the EPF81188A density tier, with 126 LABs (Logic Array Blocks) and 148 I/Os that support both 3.3 V and 5.0 V I/O operation via the MultiVolt I/O interface feature. A Field Programmable Gate Array (FPGA) is a semiconductor integrated circuit that contains a matrix of configurable logic blocks (CLBs), programmable interconnects, and programmable I/O cells. FPGAs are programmed after manufacturing, allowing designers to implement custom digital logic without fabricating application-specific integrated circuits. Within the broader semiconductor hierarchy, FPGAs belong to the programmable logic device (PLD) family, alongside CPLDs and SPLDs, and sit above fixed-function ASICs and microcontrollers in design flexibility for parallel, high-speed digital logic. Key features of the EPF81188AQC208-2 include 1,008 logic elements, 12,000 usable gates, 148 programmable I/O pins, dedicated MultiVolt I/O supporting 3.3 V or 5.0 V interface levels, in-circuit reconfigurability (ICR) via Altera EPC1, EPC1064, EPC1213, or EPC1441 configuration devices, full PCI Local Bus Specification compliance for embedded systems, and an industrial-grade operating temperature range. The FLEX 8000 architecture uses CMOS SRAM configuration memory, so the device loads its configuration at every power-up from an external serial or parallel EPROM. The FLEX 8000 architecture is built around a fast continuous-channel routing fabric with embedded array blocks (EABs) for high-density memory functions. Logic is organized into LABs, each containing eight logic elements with a carry chain and a cascade chain that accelerates arithmetic and wide fan-in functions. The continuous interconnect matrix delivers predictable timing across the entire device, which was an industry-leading feature at the time of introduction for high-density programmable logic. Typical applications for the EPF81188AQC208-2 include PCI bus interface controllers, telecommunications glue logic, industrial control and instrumentation, glue logic for legacy 5 V microprocessor systems, and high-speed parallel DSP co-processors. The device's 5 V tolerant I/O and PCI compliance make it particularly suitable for replacing discrete TTL/CMOS logic in industrial backplane designs. When designing with the EPF81188AQC208-2, ensure the configuration memory is supplied at every power-up through a compatible Altera EPC configuration device. Note that this part is mature and approaching obsolescence, so designers should validate long-term availability and consider newer Cyclone or MAX series equivalents for new designs. This page synthesizes distributor pricing, drop-in Altera FLEX 8000 alternatives, and practical configuration guidance not consolidated in a single manufacturer datasheet, with information verified against DigiKey, Octopart, Arrow, and the Altera FLEX 8000 datasheet as of 2026-09-12.

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EPF81188AQC208-3 - FLEX 8000 FPGA, 12K Gates, 148 I/O, 208-BFQFP | Intel / Altera
EPF81188AQC208-3

EPF81188AQC208-3 - FLEX 8000 FPGA, 12K Gates, 148 I/O, 208-BFQFP | Intel / Altera

The Intel / Altera (formerly Altera Corporation) EPF81188AQC208-3 is a member of the FLEX 8000 family of high-density CMOS Field Programmable Gate Arrays, offering 12,000 usable gates, 1,008 logic elements (LEs) and 148 user I/Os in a 208-pin BFQFP (Plastic Quad Flat Pack) package. The "-3" speed grade and commercial temperature grade (0C to +70C) make this device well suited for cost-sensitive, high-volume logic integration in industrial, telecom, and embedded control systems. Key features include 126 Logic Array Blocks (LABs) per device, in-circuit reconfigurability (ICR) that allows the FPGA to be re-programmed on the board without removing the part, and the MultiVolt I/O interface that lets the device drive either 3.3V or 5.0V outputs by selecting the VCCIO rail, providing easy bridging between legacy 5V peripherals and modern 3.3V ASICs. Each LE contains a 4-input look-up table, a programmable register, and dedicated carry and cascade chains. The FLEX 8000 architecture employs a continuous, predictable routing fabric called the FastTrack Interconnect, which provides horizontal and vertical routing resources connecting every LAB to every other LAB with uniform delay, simplifying timing closure. Continuous Interconnect tiles span the full device, eliminating segmented-routing bottlenecks found in earlier CPLDs and enabling deterministic high-frequency design. Typical applications include glue logic and bus interfacing, custom state-machine controllers, peripheral protocol bridges (UART, I2C, SPI multiplexing), legacy 5V system integration, prototyping of ASIC functions, and high-I/O parallel processing interfaces. The 148 user I/Os in a 208-pin QFP package provide ample pin budget for parallel data buses. When designing with the EPF81188AQC208-3, note that the device requires two supply rails: VCCINT (5V core) and VCCIO (3.3V or 5V I/O). All unused I/O pins should be left floating or tied to ground per the datasheet to minimize leakage, and configuration must be loaded via the Altera MAX+plus II or Quartus development flow using a serial or parallel EPROM. This page synthesizes distributor pricing, drop-in same-package alternatives, and design considerations for the EPF81188AQC208-3 in a single reference not found in the original Altera datasheet PDF.

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EPF81188AQC208-4 - FLEX 8000 FPGA 12K Gates 1008 Cells 5V | Intel
EPF81188AQC208-4

EPF81188AQC208-4 - FLEX 8000 FPGA 12K Gates 1008 Cells 5V | Intel

The Intel (Altera) EPF81188AQC208-4 is a member of the FLEX 8000 family of CMOS SRAM-based Field-Programmable Gate Arrays (FPGAs), delivering 12,000 usable gates, 1,008 logic cells, and 148 user I/Os in a 208-pin Power Quad Flat Pack (PQFP/BFQFP) package. The device operates from a 5 V supply and is built on a 0.42 µm CMOS process, supporting in-circuit reconfigurability (ICR) and MultiVolt I/O for 3.3 V / 5.0 V mixed-voltage system interfacing. The '-4' speed grade targets commercial temperature (0°C to 70°C) applications. An FPGA (Field-Programmable Gate Array) is a programmable logic device that allows engineers to implement arbitrary digital logic via a configuration bitstream stored in SRAM. FPGAs sit in the programmable-logic hierarchy between simple PLDs/CPLDs and modern high-density FPGAs/SoCs, and the FLEX 8000 family is Altera's classic 5 V register-rich architecture that predates the Cyclone and Stratix lines. The EPF81188A is positioned as a mid-density member, suited to glue logic, bus interface, and state-machine applications that exceed typical CPLD capacity but do not need the resources of modern 100K-gate devices. Key features include 126 Logic Array Blocks (LABs), 148 user I/O pins, 125 MHz internal performance, MultiVolt I/O support (3.3 V or 5.0 V), in-circuit reconfigurability via JTAG, and embedded memory distributed across the logic array. The 208-pin BFQFP/PQFP package provides gull-wing leads suitable for standard surface-mount assembly with a fine but manageable lead pitch. Architecturally, the FLEX 8000 device uses a sea-of-LABs interconnect with continuous FastTrack routing, dedicated carry chains for fast arithmetic, and a cascade chain for wide fan-in logic. Each LAB contains 8 Logic Elements (LEs), each with a 4-input LUT and a programmable register. The MultiVolt I/O feature allows output buffers to drive 3.3 V or 5.0 V loads regardless of VCCINT, simplifying mixed-voltage board designs. Typical applications include legacy industrial control glue logic, telecom backplane interface bridging, peripheral bus controllers (ISA/PCI bridge glue), and custom state-machine replacement in 5 V systems. The commercial temperature grade makes it well suited to indoor equipment, test gear, and prototyping platforms. When designing with this part, confirm that 5 V I/O and 0°C to 70°C commercial temperature match the system requirement. The BFQFP-208 footprint is not pin-compatible with modern lead-free BGA packages, so migration to a Cyclone or MAX device will require PCB redesign. Configuration requires an Altera programming cable (ByteBlaster/MasterBlaster) or a configuration EPROM. This page synthesizes distributor stock, parametric alternatives, and practical design considerations not always collected in the original Altera datasheet.

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EPF81188AQC240-2 - FLEX 8000 FPGA, 12K Gates, 240-Pin PQFP | Altera
EPF81188AQC240-2

EPF81188AQC240-2 - FLEX 8000 FPGA, 12K Gates, 240-Pin PQFP | Altera

The Altera (Intel) EPF81188AQC240-2 is a member of the FLEX 8000 family of CMOS SRAM-based Field Programmable Gate Arrays, offering 12,000 usable gates and 1,008 logic elements housed in a 240-pin Plastic Quad Flat Pack (PQFP/BFQFP) package. It provides 184 user I/Os and 126 Logic Array Blocks (LABs), targeting mid-density glue-logic, bus-interface, and control-plane designs where ASIC NRE cost is unjustified. What is an FPGA? A Field-Programmable Gate Array is a semiconductor IC containing an array of configurable logic blocks (CLBs/LABs), programmable interconnect, and I/O cells that the user programs after manufacture via a configuration bitstream stored in SRAM, EPROM, or flash. The FLEX 8000 family belongs to the broader class of programmable logic devices (PLDs) and historically bridged CPLDs and early ASICs in the 1990s mid-density market. FPGAs typically sit hierarchically between CPLDs and ASIC/ASSPs, offering higher density than CPLDs and lower NRE than ASICs. Key features of the EPF81188AQC240-2 include a 5 V core supply with MultiVolt I/O support for 3.3 V or 5.0 V interfaces, 0.42 µm CMOS SRAM process technology, in-circuit reconfigurability (ICR) via Altera EPC1/EPC1064/EPC1213/EPC1441 configuration devices, and a -2 speed grade targeting higher internal performance. The -2 speed grade is the fastest of the FLEX 8000 family at this density. Technically, the FLEX 8000 architecture uses a row/column LAB structure with FastTrack continuous routing interconnect and a 4-input look-up table (LUT) logic element. The 240-pin PQFP package provides 184 usable user I/Os across four I/O banks, enabling wide parallel bus interfaces. The -2 speed grade improves internal timing margin relative to the -3 and -4 grades. Typical applications include telecommunications line cards, industrial control boards, mid-density bus bridges, and legacy replacement of discrete TTL/CMOS glue logic. It is also used in educational and prototyping systems where Quartus II (legacy) or MAX+PLUS II design tools support the FLEX 8000 family. When designing with this device, note the 5 V supply requirement and the need for an external configuration EPROM (EPC1/EPC1441 family) for non-volatile bitstream storage. The 240-pin PQFP footprint requires careful PCB layout due to 0.5 mm pitch and exposed lead-frame thermal considerations. This page synthesizes distributor pricing, drop-in same-package alternatives from the FLEX 8000 family, lifecycle status (NRND/last-time-buy), and practical design notes not found in the manufacturer datasheet alone.

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EPF81188AQC240-3 - 12K Gates FLEX 8000 FPGA 240-PQFP | Altera
EPF81188AQC240-3

EPF81188AQC240-3 - 12K Gates FLEX 8000 FPGA 240-PQFP | Altera

The Altera (Intel) EPF81188AQC240-3 is a member of the FLEX 8000 family of CMOS SRAM-based Field-Programmable Gate Arrays (FPGAs) housed in a 240-pin Plastic Quad Flat Pack (PQFP/BFQFP) package, providing approximately 12,000 usable gates, 1,008 logic cells (logic elements), 184 user I/Os, and a maximum toggle frequency of 125 MHz on a 0.42 µm CMOS process with a 5 V supply. The FLEX 8000 family sits within the broader Altera taxonomy of high-density register-rich programmable logic, positioned between earlier MAX-class CPLDs and the later FLEX 10K and APEX families, and uses a row-and-column interconnect fabric that is configured by on-chip CMOS SRAM at system power-up. A Field-Programmable Gate Array (FPGA) is a type of programmable logic device (PLD) that contains an array of configurable logic blocks (CLBs) surrounded by programmable routing resources. The logic and interconnections in the FLEX 8000 architecture are configured with CMOS SRAM elements; FLEX 8000 devices are configured at system power-up with data stored in an industry-standard parallel EPROM, an Altera serial configuration device (EPC1, EPC1213, EPC1064, or EPC1441), or provided by a system controller. The "-3" speed grade at the commercial 0–70 °C temperature range is the mid-tier speed bin for the family, balancing timing margin against cost relative to the -2 and -4 grades. Key features of the EPF81188AQC240-3 include 126 Logic Array Blocks (LABs), 184 user I/O pins, 5 V single-supply operation, in-circuit reconfigurability (ICR), and JTAG-based IEEE 1149.1 boundary-scan test support. The device's high pin count allows integration of multiple 32-bit buses into a single device, simplifying multi-bus bridge designs. All configuration data is volatile and must be reloaded after each power-up, requiring a companion configuration memory on the board. Typical applications include glue logic replacement, bus interface bridges (e.g., PCI/ISA bridge, microprocessor I/O expansion), telecommunications line-card controllers, industrial control logic, prototyping platforms for ASICs, and high-density state machines. Engineers typically select this part when a design has outgrown a complex PLD but does not yet justify a larger FLEX 10K, Cyclone, or MAX II device, and where 5 V tolerant I/O is required to interface with legacy logic. A key design consideration is that the EPF81188AQC240-3 requires a configuration source at every power-up, so a dedicated EPC-series configuration EPROM or a microcontroller-driven download is mandatory. Designers should also budget for the configuration time before the FPGA becomes user-active and ensure JTAG chain integrity for boundary-scan testing. This page synthesizes distributor pricing, lifecycle observations, and drop-in alternatives drawn from the same FLEX 8000 family, not found in isolation on the manufacturer datasheet alone.

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EPF81188AQC240-4 - 12K Gates FLEX 8000 FPGA 240-PQFP | Altera
EPF81188AQC240-4

EPF81188AQC240-4 - 12K Gates FLEX 8000 FPGA 240-PQFP | Altera

The Altera EPF81188AQC240-4 is a member of the FLEX 8000 family of high-density CMOS SRAM-based Field-Programmable Gate Arrays (FPGAs), delivering 12,000 usable gates, 1008 logic elements (LEs) organized into 126 Logic Array Blocks (LABs), and 184 user I/Os in a 240-pin Plastic Quad Flat Pack (PQFP/BFQFP) package. Speed grade -4 corresponds to the slowest (most economical) timing bin in the family, while the core architecture supplies a continuous FastTrack interconnect routing network for predictable timing closure across designs. A Field-Programmable Gate Array (FPGA) is a semiconductor integrated circuit whose digital logic functionality is defined after manufacturing via a configuration bitstream loaded into on-chip SRAM cells. FPGAs sit hierarchically above CPLDs (in density) and below ASICs (in unit cost for high volumes), making them the workhorse for digital signal processing, data-path manipulation, glue logic, and prototyping prior to ASIC tape-out. The FLEX 8000 family specifically targets register-rich designs through its 4-input look-up-table (LUT) based LE architecture with dedicated carry chains and cascade paths. The EPF81188AQC240-4 features 0.42 µm CMOS SRAM process technology, a 5 V core supply, in-circuit reconfigurability (ICR) allowing re-programming on the board without removing the device, and a commercial operating temperature range of 0 °C to 70 °C. Each LE combines a compact 4-input LUT with a programmable register, enabling both combinational and sequential logic implementations. The large register count (up to 1,500 per the family) makes the device particularly efficient for pipelined datapath and state-machine applications. Architecturally, the LABs are interconnected through FastTrack continuous routing rows and columns that span the entire die, providing uniform routing delay independent of placement. Configuration data is loaded serially or via byte-wide paths into on-chip SRAM, supporting the in-circuit reconfigurability feature critical for system-level design flexibility. The 184 user I/Os are sufficient to integrate multiple 32-bit buses into a single device, reducing board area and the chip count for bridging and bus-interface designs. Typical applications for the EPF81188AQC240-4 span digital signal processing (DSP) pipelines such as FIR filters and FFT engines, wide-data-path manipulation in image and video preprocessing, data-transformation glue logic between microprocessors and peripherals, telecommunications channel coding, and industrial control state machines. Designers also use this part in prototype ASIC verification, where the ICR feature enables rapid iteration of the design RTL without re-spinning the board. When designing with the EPF81188AQC240-4, plan for the 5 V supply tolerance of the FLEX 8000 family, provide proper decoupling (0.1 µF plus bulk capacitance) near each supply pin, and respect the JTAG configuration mode boundary-scan considerations. The PQFP-240 package is suitable for socketed development but may be replaced by surface-mount variants in production. This page synthesizes distributor pricing from DigiKey and Mouser, lists verified drop-in alternatives from the FLEX 8000 family, and consolidates practical design notes not aggregated in the manufacturer datasheet alone.

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EPF81188AQI208-3 - FLEX 8000 FPGA, 12K Gates, 208-Pin PQFP | Altera
EPF81188AQI208-3

EPF81188AQI208-3 - FLEX 8000 FPGA, 12K Gates, 208-Pin PQFP | Altera

The Altera EPF81188AQI208-3 is a member of the FLEX 8000 programmable logic device family, delivering 12,000 usable gates and 1,008 logic elements in a 208-pin Plastic Quad Flat Pack (PQFP) with gull-wing leads. It operates from a 5V supply with 3.3V or 5V I/O compatibility, achieves a maximum clock frequency of 125 MHz, and has a typical propagation delay of 5.0 ns at the -3 speed grade. The device is fabricated on a 0.42 µm CMOS process and offers 148 configurable I/O pins for high signal fan-out. A Field-Programmable Gate Array (FPGA) is a semiconductor integrated circuit built around an array of configurable logic blocks (CLBs), programmable interconnect, and programmable I/O cells that the designer can reconfigure after manufacture to implement arbitrary digital logic. Within the broader taxonomy, an FPGA belongs to programmable logic devices (PLDs), which sit above standard logic ICs and below ASICs in design flexibility vs unit-cost trade-off. FPGAs are used when time-to-market, in-field upgradability, or high gate counts make a fixed-function ASIC uneconomical. Key features of the EPF81188AQI208-3 include in-circuit reconfigurability (ICR) via external configuration devices or intelligent controllers, a register-rich architecture with up to 1,500 registers for sequential logic density, JTAG boundary-scan test support per IEEE 1149.1, and multi-voltage I/O that simplifies interfacing to legacy 5V buses. The 208-pin PQFP footprint provides generous I/O count and a robust through-hole-style gull-wing termination suitable for industrial and communications equipment. The FLEX 8000 architecture uses a four-input look-up table (LUT) per logic element with a dedicated register and fast carry chain, balancing logic density with predictable timing for glue logic, bus interfacing, and state-machine heavy designs. The 0.42 µm CMOS process and -3 speed grade place this part in the legacy Altera lineup, well-supported by the MAX+PLUS II and Quartus design flows. Typical applications include automotive body electronics and lighting, communications equipment, broadband fixed-line access, industrial test and measurement, and legacy control systems requiring 5V-tolerant I/O. It is also seen in board-level glue logic for telecom backplane designs. When designing with this device, observe the 208-pin PQFP land pattern strictly: pad geometry and lead coplanarity matter for solder joint reliability, and decoupling must include bulk and high-frequency ceramics placed close to each VCC/GND pair. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, including a side-by-side comparison with other FLEX 8000 speed grades and compatible package options.

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EPF81188AQI208-4 - FLEX 8000 FPGA, 16K Gates, 148 I/O, 208-PQFP | Intel
EPF81188AQI208-4

EPF81188AQI208-4 - FLEX 8000 FPGA, 16K Gates, 148 I/O, 208-PQFP | Intel

The Intel (formerly Altera) EPF81188AQI208-4 is a high-density FLEX 8000 series CMOS SRAM-based Field Programmable Gate Array (FPGA) housed in a 208-pin Plastic Quad Flat Pack (BFQFP/PQFP) package, featuring up to 16,000 usable gates, approximately 1,500 registers, 148 user I/Os, and 126 Logic Array Blocks (LABs). It is fabricated on a low-cost, high-density, register-rich CMOS process and operates from a single 5 V supply, integrating multiple 32-bit bus interfaces in a single device for high pin-count applications. An FPGA (Field Programmable Gate Array) is a type of programmable logic device (PLD) that uses configurable logic blocks (CLBs) and programmable interconnects to implement custom digital circuits. In the broader taxonomy, FPGAs sit under programmable logic -> PLD -> logic IC -> semiconductor. The FLEX 8000 family was introduced in the mid-1990s as Altera's register-rich, in-circuit reconfigurable architecture, intended for glue logic, bus interfacing, and state-machine consolidation. Compared with CPLDs, FPGAs offer higher logic density but require SRAM configuration at every power-up, typically loaded from a serial configuration PROM such as the Altera EPC1, EPC1064, EPC1213, or EPC1441. Key features of the EPF81188AQI208-4 include in-circuit reconfigurability (ICR), 148 programmable user I/Os, 6 dedicated clock input pins, JTAG-compliant boundary-scan test support, multiVolt I/O interface capability for 3.3 V and 5 V mixed systems, and a pin-compatible migration path across speed grades (-4, -3, -2). It is supported by the Altera MAX+plus II and Quartus design toolchains, and provides deterministic, register-rich architecture well suited to pipelined datapaths and high-speed state machines. The architecture is built on continuous FastTrack interconnect rows and columns with SRAM configuration cells. Logic is implemented in Logic Elements (LEs) grouped into LABs, each containing 8 LEs with carry-chain and cascade support. Dedicated input registers and output registers per I/O pin simplify pipeline and registered I/O designs, and four low-skew global clock networks feed registers across the die. Typical applications include 32-bit microprocessor glue logic and peripheral integration, PCI bus bridging and interface controllers, telecom line-card state machines, industrial control and instrumentation front-ends, DSP co-processing front-ends, and ASIC prototyping. The wide 5 V tolerant I/O and JTAG support make the device practical for legacy systems and migration from discrete TTL/CMOS logic. When designing with this device, ensure that a serial configuration PROM is included on the board for SRAM-based configuration at every power-up, and that the nCONFIG, nSTATUS, and CONF_DONE signals are correctly pulled and monitored. MultiVolt I/O allows direct interface to 3.3 V peripherals from the 5 V core, simplifying mixed-voltage designs without external level shifters. This page synthesizes distributor pricing, drop-in alternative MPNs from the same FLEX 8000 family, and practical design notes not consolidated on the manufacturer datasheet cover page.

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EPF81188ARC240-2 - FLEX 8000 FPGA 12K Gates 240-RQFP | Altera
EPF81188ARC240-2

EPF81188ARC240-2 - FLEX 8000 FPGA 12K Gates 240-RQFP | Altera

The Altera EPF81188ARC240-2 is a member of the FLEX 8000 family of CMOS programmable logic devices, delivering 12,000 usable gates, 1,008 logic elements (cells), and 184 user I/O pins in a 240-pin RQFP (RQFP/BFQFP) package with exposed thermal pad. It is built on a 0.42 µm CMOS process, operates from a 5 V supply, and supports system clock speeds up to 125 MHz, making it a low-cost, high-density, register-rich programmable logic solution for legacy and industrial designs. What is a FLEX 8000 FPGA? The FLEX 8000 family is a register-rich CMOS programmable logic device (PLD) line introduced by Altera in the 1990s. FPGAs (Field-Programmable Gate Arrays) belong to the broader category of programmable logic devices, sitting hierarchically as: FPGA -> PLD -> logic IC -> integrated circuit -> semiconductor. The FLEX 8000 series provides in-circuit reconfigurability (ICR) through external configuration devices or intelligent controllers, and is fully compliant with the PCI Local Bus Specification from the Peripheral Component Interconnect Special Interest Group (PCI SIG), enabling direct interface to PCI bus systems without bridging logic. Key features of the EPF81188ARC240-2 include 12,000 usable gates, 1,008 logic cells, 282 to 1,500 flip-flops depending on utilization, 184 maximum user I/O pins, and PCI-compliant I/O signalling. The device supports in-circuit reconfigurability, allowing field upgrades without removing the part from the board. Its 0.42 µm CMOS process provides mature, well-characterized silicon with predictable timing closure. The 240-pin RQFP package with exposed pad offers robust through-hole-style PCB mounting suitable for legacy industrial and telecom backplane designs. The architecture combines a fine-grained logic element array with a continuous FastTrack interconnect routing fabric, providing predictable delay regardless of logic placement. The integrated PCI-compliant interface block supports 33 MHz PCI bus operation. Programming is performed through Altera's MAX+PLUS II development system, which supports VHDL, Verilog HDL, and waveform design entry, compilation, synthesis, simulation, and timing analysis. Typical applications include PCI bus interface cards, telecommunications backplane glue logic, industrial control and factory automation controllers, legacy computing expansion peripherals, and avionics/military retrofits where 5 V tolerant PLDs with long-term availability are required. The wide logic capacity and abundant registers make it well suited to bus arbitration, protocol conversion, and state-machine-heavy designs. When designing with this device, verify the configuration scheme (EPC configuration device or controller-based) and ensure decoupling capacitance meets the MAX+PLUS II power-budget guidelines. The exposed pad must be soldered to a thermal pad for reliable operation. Note that this device is a legacy 5 V part - confirm I/O compatibility with downstream 3.3 V logic before integration. This page synthesizes distributor pricing from DigiKey, Heisener, and Octopart, pin-compatible FLEX 8000 alternatives from the same Altera product family, and practical design notes not found in the manufacturer datasheet, providing decision-ready information for new designs and field-replacement scenarios.

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