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EPF8820ATC144-2 - FLEX 8000 FPGA, 672 Cells, 112 I/O, 144-LQFP | Intel
EPF8820ATC144-2

EPF8820ATC144-2 - FLEX 8000 FPGA, 672 Cells, 112 I/O, 144-LQFP | Intel

The Intel (formerly Altera) EPF8820ATC144-2 is a member of the FLEX 8000 family of high-density CMOS SRAM-based Field Programmable Gate Arrays, offering 672 logic cells and approximately 8,000 usable gates in a 144-pin LQFP (TQFP) package. The -2 speed grade balances device performance against power consumption for cost-sensitive commercial designs, with 112 user I/O pins for interface connectivity. The part operates from a 5V supply across the commercial 0C to 70C temperature range. A Field-Programmable Gate Array (FPGA) is a type of programmable logic device (PLD) built around an array of configurable logic blocks (CLBs) embedded in a programmable interconnect fabric. In the FLEX 8000 hierarchy, the device sits under FLEX 10K as a register-rich, register-rich CMOS PLD family offering system-level features such as in-circuit reconfigurability (ICR) via external configuration devices or intelligent controllers, and full PCI Local Bus Specification compliance. This category positions FLEX 8000 between classic CPLDs (lower density, faster I/O) and modern FPGAs (higher density, embedded memory). Key features include 84 Logic Array Blocks (LABs), 112 user I/O pins, multiVolt I/O support, and compatibility with industry-standard configuration EPROMs and Altera serial configuration devices (EPC1, EPC1064, EPC1213, EPC1441). The architecture is built on a 0.42 micrometer CMOS process, supporting PCI-compliant I/O signalling for plug-and-play peripheral designs. Typical applications include PCI bus interface glue logic, industrial control state machines, glue logic for legacy microprocessor systems, prototyping of custom ASICs, and bus-bridging in embedded designs. Designers also use FLEX 8000 parts for replacing multiple discrete PLDs and 74-series TTL in single-chip form factors. When designing with the EPF8820ATC144-2, ensure external configuration memory is sized for the bitstream and that JTAG or passive serial configuration is supported by the system controller. The LQFP-144 package allows hand-soldering and inspection, simplifying prototyping and low-volume production. Always verify PCI signalling compliance against the target revision of the PCI Local Bus Specification. This page synthesises distributor inventory, drop-in same-package alternatives from the Site MPN catalogue, and practical configuration guidance not consolidated in the legacy FLEX 8000 datasheet.

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EPF8820ATC144-2N - FLEX 8000 FPGA 8K Gates 144-TQFP | Altera
EPF8820ATC144-2N

EPF8820ATC144-2N - FLEX 8000 FPGA 8K Gates 144-TQFP | Altera

The Altera (Intel) EPF8820ATC144-2N is a FLEX 8000 family Field-Programmable Gate Array (FPGA) delivering 8,000 usable gates, 672 logic elements, and 112 user I/Os in a 144-pin Thin Quad Flat Pack (TQFP) package. Built on a 0.42 µm CMOS SRAM process and operating from a 5 V supply, it supports in-circuit reconfigurability through external configuration EPROMs or Altera EPC1/EPC1064/EPC1213/EPC1441 serial configuration devices, enabling system-level flexibility for prototyping and field updates. A Field-Programmable Gate Array (FPGA) is a programmable logic device (PLD) containing an array of configurable logic blocks (CLBs), programmable interconnect, and I/O cells that an engineer can program to implement arbitrary digital logic, glue logic, bus interfaces, state machines, and signal-processing datapaths. Within the broader taxonomy, FPGAs sit alongside CPLDs in the programmable logic hierarchy and are categorized under Integrated Circuits > FPGA & CPLD. FLEX 8000 was Altera's register-rich, high-density family positioned between simpler Classic EPLDs and the larger FLEX 10K family that introduced embedded array blocks. Key features of the EPF8820ATC144-2N include 84 logic array blocks (LABs), 112 maximum user I/O pins, and a maximum toggle frequency of 125 MHz. The device supports multi-voltage I/O operation (TTL and CMOS interfaces) and offers fast in-system configuration via the FLEX configuration scheme. The high-pin-count 144-TQFP package integrates multiple 32-bit buses into a single device, allowing dense glue-logic and peripheral-bridge designs. The EPF8820ATC144-2N uses Altera's classic 4-input look-up table (LUT) architecture with a continuous routing network, providing predictable timing and good register-to-logic ratios suited for state machines, datapath registers, and address decoding. The 5 V core is robust for legacy industrial interfaces and TTL buses. Typical applications include TTL and bus integration (PCI bridges, ISA glue logic), high-speed controllers, coprocessor functions, DSP preprocessing, wide-data-path manipulation, and address/data translation between mismatched processor peripherals. The 112 I/Os comfortably handle 32-bit datapaths plus control. When designing with this part, ensure correct configuration mode selection (FLEX configuration scheme), proper decoupling of the 5 V rail, and observance of TQFP-144 PCB land pattern guidelines for reliable hand or reflow soldering. This page consolidates distributor stock, drop-in alternatives, and application notes not always present in the bare datasheet PDF, serving engineers searching for a FLEX 8000 FPGA cross-reference.

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EPF8820ATC144-3 - FLEX 8000 FPGA, 672 LE, 144-LQFP | Intel/Altera
EPF8820ATC144-3

EPF8820ATC144-3 - FLEX 8000 FPGA, 672 LE, 144-LQFP | Intel/Altera

The Intel (formerly Altera) EPF8820ATC144-3 is a member of the FLEX 8000 family of high-density CMOS SRAM-based Field Programmable Gate Arrays (FPGAs), delivering approximately 8,820 usable logic elements with 672 logic elements (LEs), 84 Logic Array Blocks (LABs), and 112 user I/Os, all housed in a 144-pin LQFP (also referred to as TQFP 20x20 mm) package. It supports a single 5.0 V supply rail (VCCINT 4.75 V-5.25 V) with selectable VCCIO for 3.3 V or 5.0 V I/O standards, includes 16,000 usable gates with up to 1,500 registers, and operates over the commercial 0 C to +70 C temperature range. What is a FLEX 8000 FPGA? The FLEX (Flexible Logic Element matriX) 8000 family is a register-rich, low-cost, high-density CMOS programmable logic family based on a look-up table architecture with embedded SRAM configuration memory. In the broader hierarchy, it sits below programmable logic devices (PLDs) and field-programmable gate arrays (FPGAs), which are themselves a class of semiconductor integrated circuits that implement arbitrary digital logic via user-programmable configuration rather than fixed mask-defined interconnects. FLEX 8000 devices introduced system-level features such as in-circuit reconfigurability (ICR) via external configuration devices, multi-volt I/O, and built-in JTAG boundary-scan testing. Key features include in-system programmability through the IEEE 1149.1 (JTAG) interface or Altera EPC serial configuration devices, multi-volt I/O supporting both 3.3 V and 5.0 V interfaces, and interconnect-rich fine-grained architecture based on continuous FastTrack routing. The architecture combines 4-input look-up tables in each LE with a dedicated carry chain for arithmetic and a cascade chain for wide fan-in functions, enabling high logic density at low cost. Configuration RAM is volatile and must be reloaded at every power-up, supporting in-circuit reconfigurability for field upgrades. Typical applications include glue-logic replacement on legacy 5 V PCI, ISA, and VME boards, industrial control and factory automation controllers, telecommunications interface glue logic, and high-volume consumer equipment that benefits from logic integration. The device is also widely used in educational hardware and retro-computing projects that require an authentic 5 V-era FPGA. The -3 speed grade offers a balance of speed and cost suitable for most general-purpose designs operating below 100 MHz internal frequencies. When designing with this device, observe the 5.0 V VCCINT requirement - this part is NOT 3.3 V core tolerant like modern FPGAs. Use level shifters on I/O banks when interfacing with 3.3 V logic, and budget configuration time during power-up. Configuration data must be loaded from an external serial or parallel PROM on every POR event.

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EPF8820ATC144-3N - FLEX 8000 FPGA, 8K Gates, 672 Cells | Intel
EPF8820ATC144-3N

EPF8820ATC144-3N - FLEX 8000 FPGA, 8K Gates, 672 Cells | Intel

The Intel (Altera) EPF8820ATC144-3N is a member of the FLEX 8000 family of CMOS SRAM-based Field-Programmable Gate Arrays, delivering approximately 8,000 usable gates and 672 logic cells in a 144-pin TQFP (also described as 144-LFQFP) surface-mount package. It is fabricated on a 0.42 µm process node and operates from a 5 V supply within the commercial 0 °C to 70 °C temperature range. The -3 speed grade positions this device in the mid-tier of the FLEX 8000 performance spectrum, with an internal counter frequency benchmark commonly cited around 125 MHz. What is a FLEX 8000 FPGA? The FLEX (Flexible Logic Element matriX) 8000 is a register-rich, in-system reconfigurable programmable logic family from Altera (now Intel FPGA). FPGAs in general sit within the broader taxonomy of programmable logic devices (PLD) and belong to the digital semiconductor hierarchy: logic IC -> PLD -> CPLD/FPGA -> SRAM-based FPGA. FLEX 8000 devices are configured at system power-up by loading SRAM configuration bits from an external EPROM or from Altera EPC-series serial configuration devices (EPC1, EPC1064, EPC1213, EPC1441). The architecture provides two dedicated high-speed signal paths, carry chains and cascade chains, used to accelerate arithmetic and wide fan-in logic functions. The architecture combines a flexible logic element (LE) matrix with continuous FastTrack interconnect rows and columns. Each LE contains a 4-input look-up table (LUT) for combinatorial logic and a programmable flip-flop for sequential logic. The flip-flop clock, clear, and preset control signals can be driven by dedicated input pins, by general-purpose I/O, or by any internal logic. For purely combinatorial functions the flip-flop can be bypassed, allowing the LUT output to flow directly to the device pin. Typical applications include glue logic replacement, interface bridging, bus protocol conversion, and small to medium state-machine controllers in industrial, telecom, and embedded systems. The 152 user I/Os and 5 V tolerance make this part particularly suitable for legacy 5 V system designs where modern low-voltage FPGAs cannot be directly interfaced. System-level features include in-circuit reconfigurability (ICR) via external configuration devices, allowing field upgrades without removing the device from the board. Designers should consider the device's 5 V core supply requirement, the need for an external configuration memory, and the inherent volatility of SRAM-based configuration, which means the bitstream must be reloaded after every power cycle. Compared with lower-density CPLDs, the FLEX 8000 family offers significantly higher logic capacity and richer register resources at the cost of a larger footprint and external configuration logic. This page synthesizes distributor pricing, verified drop-in FLEX 8000 alternatives in the same 144-pin TQFP footprint, and practical configuration-design notes that go beyond the manufacturer datasheet.

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EPF8820ATC144-4 - FLEX 8000 FPGA, 672 Cells, 144-TQFP | Intel
EPF8820ATC144-4

EPF8820ATC144-4 - FLEX 8000 FPGA, 672 Cells, 144-TQFP | Intel

The Intel (formerly Altera) EPF8820ATC144-4 is a member of the FLEX 8000 family of SRAM-based Field Programmable Gate Arrays (FPGAs) housed in a 144-pin Thin Quad Flat Pack (TQFP) package. It integrates approximately 8,000 usable gates, 672 logic elements across 84 Logic Array Blocks (LABs), and 112 user I/O pins, fabricated on a 0.42 µm CMOS SRAM process with four input Look-Up Tables (LUTs). It operates from a 5 V core supply, supports MultiVolt I/O interfacing at 3.3 V or 5.0 V, and is offered in a -4 speed grade rated for commercial temperature operation. A Field Programmable Gate Array (FPGA) is a programmable logic device (PLD) subclass that uses an array of configurable logic blocks (CLBs / LABs), programmable interconnect, and configurable I/O cells to implement arbitrary digital logic. Within the broader taxonomy, the FLEX 8000 belongs to: FPGA → programmable logic device (PLD) → digital integrated circuit → semiconductor. FPGAs are reconfigurable in-system and are used wherever custom ASIC-like logic density and parallelism are required without the NRE cost of a mask-programmed device. Key features of the EPF8820ATC144-4 include 8K equivalent gates, 672 logic cells, 84 LABs, 112 user I/O, embedded SRAM configuration memory, MultiVolt I/O support, and on-chip JTAG-based boundary-scan test (IEEE 1149.1) for production programming. Configuration is loaded at power-up via serial or parallel PROM using Intel configuration devices such as EPC1, EPC1064, EPC1213, and EPC1441. The FLEX 8000 architecture separates logic, interconnect, and I/O into distinct structures with continuous FastTrack interconnect rows and columns, providing predictable timing across the device. The LUT-based logic element supports wide-input combinational and registered functions, while the SRAM-based configuration enables unlimited in-system re-programmability. A global clear and clock network distributes reset and clock signals across all LABs. Typical applications include industrial control glue logic, telecommunications interface bridging, test and measurement instrumentation, and legacy system prototyping. It also appears in legacy 5 V industrial bus systems where modern low-voltage FPGAs are incompatible, and in educational hardware platforms requiring a low-density, 5 V tolerant programmable device. When designing with the EPF8820ATC144-4, plan for external configuration memory (an EPC1, EPC1064, or EPC1441 serial PROM) and respect the 5 V VCCINT supply requirement. Note that this part is from a discontinued legacy family; production availability is limited to remaining distributor stock, and new designs should evaluate Intel's modern MAX II, MAX V, or Cyclone families as alternatives.

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EPF8820ATC144-4N - 8K Gates, 125MHz FLEX 8000 FPGA | Intel / Altera
EPF8820ATC144-4N

EPF8820ATC144-4N - 8K Gates, 125MHz FLEX 8000 FPGA | Intel / Altera

The Intel / Altera EPF8820ATC144-4N is a member of the FLEX 8000 family of CMOS SRAM-based Field-Programmable Gate Arrays (FPGAs), delivering 8,000 usable gates, 672 logic cells, and 84 Logic Array Blocks (LABs) with up to 112 user I/Os in a 144-pin Thin Quad Flat Pack (TQFP) package. The device is fabricated on a 0.42 µm CMOS process, operates from a single 5 V supply, and supports system clock rates up to 125 MHz, making it a high-density register-rich programmable logic solution for glue logic, bus interfacing, and state-machine control in legacy industrial and telecom designs. An FPGA is a semiconductor device built around an array of configurable logic blocks (CLBs / LABs in Altera terminology) interconnected by a programmable routing matrix and surrounded by user I/O cells. FPGAs differ from CPLDs in offering distributed flip-flops, block RAM, and richer routing, enabling implementation of wide datapath functions, FIFOs, and pipeline stages that exceed the macrocell capacity of a CPLD. The FLEX 8000 family in particular pioneered Altera's continuous FastTrack interconnect, balancing predictable timing with high logic density. Key specifications of the EPF8820ATC144-4N include 8,000 usable gates, 672 logic elements, 84 LABs, 112 user I/Os, 5 V single-supply operation, 0.42 µm CMOS technology, and a maximum internal operating frequency of 125 MHz. The device is configured at power-up via an industry-standard parallel EPROM or an Altera serial configuration device (EPC1, EPC1064, EPC1213, or EPC1441). Built-in JTAG (IEEE 1149.1) boundary-scan support and in-circuit reconfigurability simplify board-level test and field upgrades. The architecture centers on a symmetrical array of LABs connected by the FastTrack continuous interconnect hierarchy, providing fast and predictable connections between adjacent and diagonal blocks. Each LAB contains multiple logic elements (LEs), each consisting of a 4-input look-up table, a programmable flip-flop, and dedicated carry and cascade chains. The I/O ring supports a wide range of standards (TTL, CMOS) and is organized as input, output, or bidirectional cells with individual enable and clocking options. Typical applications of the EPF8820ATC144-4N include telecommunications line cards, industrial control and factory automation, glue logic on legacy VME/PCI bus systems, ASIC prototyping, and instrumentation front-ends. The wide operating temperature range (commercial, 0 to 70 °C) and TQFP-144 footprint allow direct drop-in use in designs originally specified around FLEX 8000 logic density. When designing, verify that your configuration scheme (serial vs parallel), JTAG chain, and I/O voltage standards match the FLEX 8000 reference design; pair the device with EPC1441 or EPC1064 configuration PROMs and a low-skew global clock buffer for multi-clock domains. This page synthesizes distributor inventory, drop-in same-package alternatives from the FLEX 8000 family, and practical design notes not found in the manufacturer datasheet alone.

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EPF8820ATC144-6 - 8K Gates, 125MHz FLEX 8000 FPGA | Altera
EPF8820ATC144-6

EPF8820ATC144-6 - 8K Gates, 125MHz FLEX 8000 FPGA | Altera

The Altera EPF8820ATC144-6 is a member of the FLEX 8000 programmable logic device family, delivering approximately 8,000 usable gates, 672 logic cells, and 112 user I/Os in a 144-pin TQFP (LFQFP) package. Operating from a 5V supply at a 125MHz internal frequency, this CMOS SRAM-based FPGA provides low-cost, high-density register-rich programmable logic with in-circuit reconfigurability. A Field Programmable Gate Array (FPGA) is a semiconductor IC built around an array of configurable logic blocks (CLBs), programmable routing channels, and programmable I/O cells. FPGAs sit at the top of the digital logic hierarchy: programmable logic device (PLD) -> complex PLD (CPLD) -> FPGA -> SoC FPGA. The FLEX 8000 family targets glue-logic, bus-interface, and state-machine consolidation roles where discrete 74-series logic or a CPLD would otherwise consume excessive board area. Key features include 84 Logic Array Blocks (LABs) with 8 logic elements per LAB, 4 dedicated input pins, MultiVolt I/O supporting 3.3V or 5.0V interface (144-pin packages), and configuration via industry-standard parallel EPROM or Altera serial configuration devices (EPC1, EPC1213, EPC1064, EPC1441). The -6 speed grade specifies a worst-case propagation delay of approximately 1.9ns. The FLEX 8000 architecture uses continuous SRAM configuration memory, allowing in-system reconfiguration (ICR) via a controller or configuration device. Each LAB contains an expansion product-term array and a carry chain for arithmetic functions; interconnect uses FastTrack routing with row and column channels. Die size and process technology make this device the lowest-density FLEX 8000 variant, suitable for designs that exceed CPLD capacity but do not require modern high-logic-count FPGAs. Typical applications include bus-interface bridging (PCI, ISA, VME), glue-logic consolidation in industrial controllers, state-machine replacement, address decoding and interrupt handling in embedded systems, and legacy 5V peripheral interfacing where MultiVolt I/O removes the need for level shifters. Production-intent designs targeting this part typically migrate to newer Cyclone or MAX families today. Design considerations include dedicated VCCINT and VCCIO rail separation for 3.3V/5.0V I/O, mandatory configuration device selection (EPC1, EPC2, EPC1441), and JTAG support via nCONFIG, nSTATUS, and CONF_DONE pins. The -6 speed grade represents one of the slower grades in the family; faster -3 or -2 grades are usable when timing margins are tight. This page synthesizes Altera FLEX 8000 specifications, parametric drop-in alternatives within the same speed/package family, and design notes not consolidated in the original datasheet.

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EPF8820ATC144-7 - FLEX 8000 FPGA 672-Cell 7ns TQFP-144 | Altera
EPF8820ATC144-7

EPF8820ATC144-7 - FLEX 8000 FPGA 672-Cell 7ns TQFP-144 | Altera

The Altera (now Intel) EPF8820ATC144-7 is a member of the classic FLEX 8000 programmable logic family, delivering 8,000 usable gates and 672 logic cells in a 144-pin TQFP package. The "-7" suffix denotes a 7ns pin-to-pin propagation delay speed grade, making it the slowest commercial bin of the EPF8820A device. According to Altera FLEX 8000 datasheet, the family is built on a 0.42 µm CMOS SRAM process and supports in-circuit reconfigurability (ICR) via external EPC1, EPC1064, EPC1213, or EPC1441 configuration EPROMs. A field-programmable gate array (FPGA) is a semiconductor IC containing an array of configurable logic blocks (CLBs), programmable routing channels, and programmable I/O cells. Designers describe logic at the register-transfer level using HDLs (VHDL or Verilog) and the synthesis toolchain maps the design into the bitstream that configures SRAM look-up tables, flip-flops, and interconnect. FPGAs sit in the broader programmable logic hierarchy: PLD (programmable logic device) is the umbrella term, SPLD/CPLD represent simpler non-volatile architectures, while SRAM-based FPGAs like FLEX 8000 offer the highest logic density and re-programmability. Key features of the EPF8820ATC144-7 include 84 Logic Array Blocks (LABs), 112 user I/O pins, a 5V core supply with MultiVolt I/O support (3.3V or 5.0V on the I/O bank for all packages except 84-pin variants), and JTAG-based boundary-scan testing per IEEE 1149.1. The architecture uses continuous FastTrack interconnect routing and incorporates embedded RAM blocks and a per-pin tri-state buffer for bus-oriented designs. The TQFP-144 footprint exposes 112 user I/Os while leaving the remaining pins for power, ground, configuration, and JTAG signals. Typical applications include glue-logic integration, peripheral bus bridging (ISA-to-PCI bridges in legacy PCs), industrial control state machines, prototyping ASICs, and replacement of multiple TTL/CMOS 74-series packages. Engineers also deploy the EPF8820ATC144-7 in telecommunications line cards, test equipment front-ends, and avionics subsystems where 5V tolerance and through-hole-compatible surface-mount packages are required. The FLEX 8000 family was a workhorse of late-1990s and early-2000s designs, and many systems still rely on these parts for long-life-cycle support. When designing with the EPF8820ATC144-7, ensure your Quartus II or MAX+PLUS II toolchain targets the FLEX 8000 device family and that the configuration EPROM (EPC1/EPC1064/EPC1441) is correctly selected for the device density. Watch the -7 speed grade carefully - it is the slowest EPF8820A bin and may not meet timing budgets that the -3 or -4 grades can. The part is now in NRND (Not Recommended for New Designs) lifecycle, so consider Cyclone or MAX families for new projects.

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EPF8820ATC144-8 - FLEX 8000 8K Gate FPGA, 144-LQFP | Altera
EPF8820ATC144-8

EPF8820ATC144-8 - FLEX 8000 8K Gate FPGA, 144-LQFP | Altera

The Altera EPF8820ATC144-8 is a member of the FLEX 8000 family of CMOS SRAM-based Field Programmable Gate Arrays, offering approximately 8,000 usable gates with 672 logic elements in a 144-pin LQFP (TQFP) surface-mount package. It is part of the legacy Altera programmable logic portfolio, originally released in the mid-1990s and now supported through Intel FPGA's mature-device lifecycle. The "-8" suffix designates a specific speed grade within the FLEX 8000 family, where lower numeric suffixes correspond to faster internal performance. A Field Programmable Gate Array (FPGA) is a semiconductor device built around an array of configurable logic blocks (CLBs) interconnected by a programmable routing matrix. FPGAs sit at the top of the programmable logic hierarchy: PAL/GAL (simple) -> CPLD (complex programmable logic device) -> FPGA (highest density, SRAM-based). The FLEX 8000 family pioneered Altera's look-up-table-based architecture combined with continuous interconnect, a design that influenced later device families such as ACEX, APEX, and Cyclone. Key features include 84 Logic Array Blocks (LABs), 112 user I/O pins, on-chip SRAM configuration memory, and support for MultiVolt I/O interfacing with 3.3V or 5.0V systems (excluding EPF8636A 84-pin variants). The device is configured at system power-up via an industry-standard parallel EPROM, an Altera serial configuration device (EPC1, EPC1213, EPC1064, EPC1441), or a system controller. The CMOS SRAM configuration approach allows in-system reconfiguration and unlimited reprogramming cycles. The FLEX 8000 architecture is fabricated on a 0.42 micrometer CMOS process with four-layer metal interconnect. Each Logic Element contains a 4-input look-up table, a programmable flip-flop, and dedicated carry and cascade chains that accelerate arithmetic and wide fan-in functions. Continuous FastTrack interconnect provides predictable routing delays across the device. The 144-pin LQFP package uses a 0.5 mm terminal pitch and offers a 31 mm x 31 mm body suitable for production through-hole-free assembly. Typical applications include industrial control glue logic, telecommunications interface adapters, legacy ASIC replacements, prototyping platforms, and military/aerospace systems requiring long-life programmable logic. Engineers continue to deploy EPF8820ATC144-8 designs where proven design IP, long-term availability through Altera/Intel's mature-device program, and a stable Quartus design flow outweigh the benefits of migrating to newer families. When designing with this device, ensure proper configuration is supplied at every power-up because SRAM-based FPGAs lose configuration on power-down. The JTAG boundary-scan and dedicated configuration pins must be correctly terminated, and the MAX+plus II or Quartus design software should be used for synthesis, place-and-route, and timing closure. Users targeting modern I/O standards should migrate to newer families like Cyclone or MAX 10. This page synthesizes distributor pricing, FLEX 8000 family drop-in alternatives, and practical design considerations not consolidated in the manufacturer datasheet alone, enabling engineers to evaluate the EPF8820ATC144-8 for both new and legacy design-in scenarios.

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EPF8820ATI144-1 - FLEX 8000 FPGA 8K Gates, 1.8ns, TQFP-144 | Altera
EPF8820ATI144-1

EPF8820ATI144-1 - FLEX 8000 FPGA 8K Gates, 1.8ns, TQFP-144 | Altera

The Altera EPF8820ATI144-1 is a member of the FLEX 8000 family of CMOS programmable logic devices, delivering up to 8,200 usable gates, 672 logic elements, and 112 I/O pins in a 144-pin TQFP (TQ144 / 0.500 mm pitch) industrial-grade package. Built on a 0.42 µm CMOS EPROM process, this device provides a propagation delay of approximately 1.8 ns and supports system clock frequencies up to 80 MHz. The FLEX 8000 family is an SRAM-based programmable logic device (PLD) that combines fine-grained logic elements with continuous-channel routing to deliver predictable timing. It is widely used as a flexible substitute for discrete TTL/CMOS glue logic and gate arrays, allowing designers to integrate 5V and 3.3V interfaces through MultiVolt I/O buffers while operating from a 3.0 V to 3.6 V core supply. Key features include a continuous FastTrack Interconnect routing architecture for deterministic timing, built-in JTAG (IEEE 1149.1) boundary-scan test, in-system programmability through the EPC configuration controller, and four dedicated high-speed clock inputs with on-chip PLL-like global clock distribution. The TQFP-144 package offers an industrial operating temperature range of -40 °C to +85 °C suitable for telecom, industrial control, and embedded computing designs. Typical applications for the EPF8820ATI144-1 include high-volume glue-logic consolidation in 5V and 3.3V systems, PCI bus interface bridges, legacy ASIC and gate-array emulation, telecom line-card control logic, and industrial automation controllers. Its compatibility with the Quartus II and MAX+PLUS II design environments also makes it a useful bridge in maintenance and long-life-cycle designs. When designing with the EPF8820ATI144-1, ensure the design tools (Quartus II or MAX+PLUS II) match the device, and verify configuration scheme support. The device is one of the highest-density FLEX 8000 members in a 144-pin TQFP; the same die is also offered in larger packages such as RQ208, R240, and C240 for applications needing more I/O pins.

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EPF8820ATI144-2 - FLEX 8000 FPGA 672-LE PQFP Industrial | Intel
EPF8820ATI144-2

EPF8820ATI144-2 - FLEX 8000 FPGA 672-LE PQFP Industrial | Intel

The Intel (formerly Altera) EPF8820ATI144-2 is a member of the FLEX 8000 family of CMOS Field-Programmable Gate Arrays (FPGAs), delivering 672 logic elements (LEs) in a 144-pin Plastic Quad Flat Pack (PQFP) package with 112 user I/O pins and 4 dedicated inputs. It is graded for the industrial temperature range and operates from a 4.5V to 5.5V single supply with a nominal VCC of 5V. An FPGA (Field-Programmable Gate Array) is a semiconductor device built around an array of configurable logic blocks (CLBs), programmable interconnects, and I/O cells, allowing the designer to implement arbitrary digital logic after PCB fabrication. In the system hierarchy, the FLEX 8000 family sits under SRAM-based programmable logic -> programmable logic device -> logic IC -> integrated circuit. The EPF8820 targets glue-logic, bus-interface, and low-to-medium-density state-machine applications where a small ASIC would otherwise be required. Key features include 1.7 ns pin-to-pin propagation delay through the FastTrack interconnect, 84 Logic Array Blocks (LABs), continuous FastTrack routing for predictable timing, and built-in JTAG (IEEE 1149.1) boundary-scan support. The 0.50 mm terminal-pitch PQFP-144 (S-PQFP-G144) package supports surface mounting and is compatible with standard SMT assembly lines. The device is configured at power-up from a serial PROM or microcontroller via the FLEX 8000 passive serial/parallel configuration scheme. Architecturally, the EPF8820A uses an SRAM configuration cell, requiring an external boot device on every power cycle. Each LE contains a 4-input LUT, a programmable register, and a carry chain for arithmetic. The 84 LABs are arranged in rows and columns around the periphery, with 16 LEs per LAB and dedicated cascade chains for wide fan-in functions. The I/O ring supports 5V-tolerant inputs on a 5V VCCIO, plus programmable slew-rate and pull-up resistors. Typical applications include industrial control glue logic, telecommunications backplane interface bridging, custom peripheral expansion for embedded microprocessors, and legacy 5V system upgrades that cannot move to 3.3V FPGAs. The 1.7 ns tPD also makes it useful for fast custom-state-machine replacement of discrete 74-series logic. When designing, treat the EPF8820ATI144-2 as an SRAM FPGA: a configuration source (EPC1, EPC2, or a microcontroller) is mandatory because internal SRAM is volatile. Ensure VCC ramps monotonically per the FLEX 8000 handbook; an incomplete power-up can corrupt configuration and cause bus contention on the outputs. Place a 0.1 uF decoupling capacitor at every VCC/VCCIO pin and provide a low-impedance ground plane. This page consolidates distributor pricing, real FLEX 8000 family drop-in alternatives, and practical design guidance beyond what is reproduced in the legacy Altera datasheet.

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EPF8820ATI144-2N - 672-Logic-Element FLEX 8000 FPGA | Altera | 5V
EPF8820ATI144-2N

EPF8820ATI144-2N - 672-Logic-Element FLEX 8000 FPGA | Altera | 5V

The Altera (now Intel) EPF8820ATI144-2N is a member of the FLEX 8000 family of CMOS SRAM-based programmable logic devices (PLDs) and field-programmable gate arrays (FPGAs), offering 672 logic elements in a 144-pin TQFP (TQ144) industrial-grade package with a 1.7 ns propagation delay. It is a loadable PLD that operates from a single 5V supply (4.5V to 5.5V range) and is intended for surface-mount designs requiring a moderate gate density with predictable timing. A FLEX 8000 device is a class of SRAM-based programmable logic that combines fine-grained logic elements (LEs) with continuous interconnect and embedded array blocks (EABs) for memory functions. FPGAs in general sit within the programmable logic hierarchy (PLD -> CPLD -> FPGA) under the broader semiconductor category, and the FLEX 8000 family was Altera's mainstream high-density family prior to the MAX and Cyclone series. Unlike antifuse or flash FPGAs, FLEX 8000 parts are volatile and must be configured from an external EPROM or Altera serial configuration device (EPC1, EPC1213, EPC1064, EPC1441) at every power-up. Key features include 672 logic elements, 1.7 ns combinatorial propagation delay (tPD), SRAM-based configuration that supports in-system re-programmability, an industrial operating temperature grade (-40C to +85C), and JTAG-erasable memory cells for fast design iteration. The 144-pin TQFP package uses gull-wing leads at 0.500 mm pitch for SMT assembly, and the device is pin-compatible with other EPF8820A TQ144 speed grades, allowing board reuse across the family. Architecturally, the EPF8820A integrates logic elements organized into Logic Array Blocks (LABs), each containing multiple LEs with a 4-input look-up table, programmable register, and carry chain. EABs provide on-chip RAM/ROM with widths up to 16 bits. Continuous routing channels deliver predictable, deterministic timing well-suited to glue-logic, bus-interface, and state-machine roles in legacy industrial systems. Typical applications include industrial machine control, legacy telecom interfaces, glue-logic replacement for TTL/74-series designs, custom bus controllers (ISA, PC/104, VME), and prototyping platforms where the FLEX 8000 toolchain (MAX+PLUS II or Quartus) is still in production use. The part is also common in long-lifecycle defense and aerospace programs where a stable 5V supply and industrial-temperature silicon are required. When designing with this part, designers must provide an external configuration memory because FLEX 8000 devices lose their configuration on power-down. Plan a 5V analog supply with adequate decoupling (100 nF + 10 uF), respect the 4.5V to 5.5V supply window, and reserve board area for the EPC1/EPC1441 configuration EPROM. Programming is performed via the Altera ByteBlaster or via JTAG. This page synthesizes distributor availability, Altera-family drop-in alternatives in the same TQ144 footprint, and practical design notes (configuration memory, 5V supply decoupling, JTAG chain) that are not consolidated in the manufacturer datasheet itself.

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EPF8820ATI144-3 - 672-LE FLEX 8000 FPGA, 5V, 144-LQFP | Altera
EPF8820ATI144-3

EPF8820ATI144-3 - 672-LE FLEX 8000 FPGA, 5V, 144-LQFP | Altera

The Altera EPF8820ATI144-3 is a member of the FLEX 8000 family of CMOS SRAM-based Field-Programmable Gate Arrays (FPGAs) housed in a 144-pin LQFP (LFQFP) package with gull-wing leads. The device integrates 672 logic elements, supports 152 user I/O pins with 3.3V or 5V configurable I/O standards, and operates at a 0.2 ns propagation delay target suitable for high-speed glue-logic and bus-interface designs. The "-3" speed grade designates a faster bin within the EPF8820A industrial-grade product line, which is graded for industrial temperature operation. An FPGA (Field-Programmable Gate Array) is a semiconductor integrated circuit composed of configurable logic blocks (CLBs), programmable interconnects, and programmable I/O cells that the designer can configure after manufacture. FPGAs sit within the broader taxonomy of programmable logic devices (PLDs), alongside CPLDs (Complex PLDs) and simple PLAs/PALs, and are distinguished by their very high logic density and SRAM-based configuration memory. The FLEX 8000 family is the second-generation Altera architecture that preceded the FLEX 10K and Cyclone series, and EPF8820 parts were widely used in 5V-tolerant telecom, industrial-control, and embedded glue-logic applications during the late 1990s and 2000s. Key features of the EPF8820ATI144-3 include 672 logic elements with Look-Up Table (LUT)-based architecture, 152 maximum user I/Os, an embedded array block structure for efficient memory and arithmetic, in-system programmability via the IEEE 1149.1 JTAG boundary-scan interface, and a 0.2 ns propagation-delay figure that supports clock and register-intensive pipelines. The 144-pin LQFP package provides 1.6 mm package height and 0.5 mm lead pitch, enabling low-cost PCB assembly on standard 4-layer FR-4 boards with conventional SMT lines. The FLEX 8000 architecture combines a row-and-column interconnect fabric with Logic Array Blocks (LABs) of 8 logic elements each and Embedded Array Blocks (EABs) of 2048 bits that can implement RAM, ROM, or arithmetic functions. The device is configured by loading SRAM cells from an external serial or parallel PROM, allowing unlimited in-system reconfiguration. This architecture gives designers flexibility to fix bugs, add features, or upgrade functionality in deployed systems without changing the board. Typical applications include 5V-tolerant industrial control glue logic, telecom backplane interface bridging, legacy PCI / ISA bus controllers, and high-speed state-machine implementations where the FLEX 8000 family's 0.2 ns delay figure is advantageous. The wide operating-voltage range and configurable I/O standard make it a strong fit for mixed-logic boards bridging 5V microcontrollers with 3.3V peripherals. When designing with this part, ensure your PCB layout follows FLEX 8000 power-decoupling guidance: place 0.1 uF ceramic decoupling capacitors adjacent to every VCCINT/VCCIO pin pair, and provide a solid ground plane beneath the package to control simultaneous-switching noise on the 152 I/O pins. The JTAG chain should be series-terminated at the board's JTAG connector to preserve signal integrity during in-system programming. This page synthesizes Altera/Intel FLEX 8000 datasheet parameters, drop-in alternatives within the EPF8820 family, and practical design notes not consolidated in the manufacturer's original datasheet.

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EPF8820ATI144-3N - FLEX 8000 FPGA, 672 LEs, 144-TQFP | Altera
EPF8820ATI144-3N

EPF8820ATI144-3N - FLEX 8000 FPGA, 672 LEs, 144-TQFP | Altera

The Altera EPF8820ATI144-3N is a member of the FLEX 8000 family of SRAM-based Field Programmable Gate Arrays (FPGAs) housed in a 144-pin Thin Quad Flat Pack (TQFP) package. The device integrates 672 logic elements (LEs) and supports up to 112 user I/O pins, with configurable I/O standards supporting 3.3V or 5V logic levels. The EPF8820ATI144-3N suffix "-3" denotes the speed grade, while the "N" indicates an industrial temperature grade component. An FPGA (Field Programmable Gate Array) is a type of programmable logic device (PLD) that combines the architectural flexibility of gate arrays with the design convenience of in-system programmability. FPGAs occupy a position in the broader semiconductor hierarchy as reconfigurable logic devices, alongside CPLDs (Complex Programmable Logic Devices), and serve as a bridge between fixed-function ASICs and software-driven microcontrollers. They are widely used for prototyping, glue logic, signal processing, and parallel computation in applications where time-to-market and design flexibility outweigh raw per-unit cost. Key features of the EPF8820ATI144-3N include 672 logic elements, 112 max user I/Os, SRAM-based configuration loaded at system power-up, propagation delay as low as 0.2 ns at the -3 speed grade, and configurable I/O voltage rails supporting both 3.3V and 5V logic. The architecture uses continuous FastTrack interconnect routing for predictable timing closure. CMOS SRAM technology is used for configuration storage, requiring external configuration devices (such as Altera EPC1, EPC1064, EPC1213, or EPC1441) or a system controller to load the bitstream at every power-up. The FLEX 8000 architecture is implemented in a CMOS process and combines a hierarchical routing fabric with embedded array blocks. Each logic element contains a 4-input look-up table (LUT) and a programmable register. The device supports JTAG-based boundary-scan testing per IEEE 1149.1, easing board-level test integration. Embedded array blocks (EABs) provide efficient implementation of on-chip memory and arithmetic functions, while the interconnect uses dedicated routing resources that provide high-speed signal paths between LEs across the device. Typical applications for the EPF8820ATI144-3N include telecommunications interface glue logic, industrial control and automation, test and measurement instrumentation front-ends, military and aerospace systems (when used within industrial-grade thermal envelopes), legacy peripheral bridging, and custom bus protocol implementations such as I2C, SPI, or parallel interface bridging. Designers continue to source this part for long-lifecycle programs and equipment refresh. Designers using this part should ensure that the configuration bitstream storage device is correctly selected for the system supply and JTAG chain. Industrial-grade operation supports -40C to +85C ambient. FLEX 8000 devices do not retain configuration through power cycles; an external configuration EPROM or microcontroller is mandatory. The 144-pin TQFP package has a 0.5 mm terminal pitch and requires standard SMT reflow processes. This page synthesizes distributor pricing, drop-in same-package alternatives, pin-level design guidance, and lifecycle context not consolidated in the manufacturer datasheet, providing an engineer-ready reference for sourcing and replacement decisions.

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EPF8820ATI144-4 - FLEX 8000 FPGA, 672 LEs, 144-LQFP | Intel / Altera
EPF8820ATI144-4

EPF8820ATI144-4 - FLEX 8000 FPGA, 672 LEs, 144-LQFP | Intel / Altera

The Intel (formerly Altera) EPF8820ATI144-4 is a member of the FLEX 8000 family of CMOS SRAM-based loadable programmable logic devices (PLDs) housed in a 144-pin LQFP (Low-profile Quad Flat Pack) gull-wing surface-mount package, operating over the industrial temperature range. According to the manufacturer documentation, the device integrates 672 logic elements organized into 84 logic array blocks (LABs) and offers a propagation delay of approximately 0.1 ns, making it well suited for high-speed glue-logic and state-machine replacement tasks. What is a FLEX 8000 PLD? FLEX 8000 devices are a loadable PLD architecture that combines the high register count and predictable timing of traditional PLDs with the density of early FPGAs. Sitting in the broader taxonomy of programmable logic devices -> PLD -> SRAM-based FPGA -> logic integration IC, FLEX 8000 was historically used to consolidate multiple TTL/CMOS glue-logic chips into a single re-programmable device with non-volatile configuration via an external EPROM or JTAG. Key features include support for both 3.3 V and 5.0 V I/O signaling, configurable I/O operation, in-system programmability through the JTAG interface, and a wide operating supply voltage range that allows direct interfacing with legacy 5 V logic families. The 144-pin LQFP footprint gives the device a generous I/O count of 112 user I/Os plus dedicated inputs, while remaining compatible with automated assembly lines using gull-wing leads. The FLEX 8000 family is configured via the Altera MAX+PLUS II or Quartus design environment using HDL or schematic capture. Architecturally, the EPF8820ATI144-4 is built on a 0.42 µm CMOS SRAM process with EPROM-based configuration memory in the legacy FLEX 8000 line, which provides reprogrammability and predictable interconnect delays. Each LAB contains 8 logic elements with 4-input look-up tables (LUTs), programmable registers, and carry chains for arithmetic functions. The continuous FastTrack interconnect provides horizontal and vertical routing with predictable delays regardless of placement, simplifying static timing closure. Typical applications include bus interface bridging, address decoding, glue-logic consolidation, state-machine implementation, peripheral control in industrial controllers, and legacy system upgrades that need drop-in programmable replacements for discrete 74-series logic. The wide 3.3 V/5 V tolerance also makes the part useful in mixed-voltage designs and retrofit projects. When designing with this device, allocate sufficient time for power estimation because the FLEX 8000 architecture draws significantly more quiescent current than modern FPGAs. Decouple all four VCCINT/VCCIO pairs close to the package, and add a series ferrite bead between the analog/digital supply rails. For multi-board systems, plan configuration PROM placement to minimize JTAG daisy-chain stub lengths. This page synthesizes distributor pricing, drop-in alternatives from the same FLEX 8000 family, and practical design notes that are not present in the original Altera datasheet, providing AEO/GEO-friendly structured data for component selection, lifecycle planning, and replacement decisions.

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EPF8820ATI144-4N - 672-LE FLEX 8000 FPGA, 144-LQFP | Altera
EPF8820ATI144-4N

EPF8820ATI144-4N - 672-LE FLEX 8000 FPGA, 144-LQFP | Altera

The Altera EPF8820ATI144-4N is a member of the legacy FLEX 8000 family of SRAM-based Field-Programmable Gate Arrays (FPGAs), delivering 672 logic elements (LEs) organized into 84 Logic Array Blocks (LABs). Housed in a 144-pin LQFP (LFQFP) gull-wing package, the device supports configurable I/O standards for both 3.3V and 5V signaling, and is graded for industrial temperature operation. The 'N' suffix indicates lead-free / Pb-free terminal finish, and the 'I' in the package designator indicates the industrial temperature grade. An FPGA (Field-Programmable Gate Array) is a semiconductor integrated circuit whose logic functionality is defined by the customer after manufacture using a configuration bitstream loaded into on-chip SRAM. Within the broader taxonomy, the EPF8820ATI144-4N sits in the hierarchy: FPGA -> programmable logic device (PLD) -> logic IC -> integrated circuit. The FLEX 8000 family specifically pioneered Altera's look-up-table (LUT) based architecture, replacing the older MAX-class EPLD technology, and bridged the gap toward modern high-density Stratix and Cyclone families. Key features of the EPF8820ATI144-4N include 672 logic elements (8 LEs per LAB x 84 LABs), a propagation delay of 0.1 ns through the FastTrack interconnect, configurable I/O supporting 3.3V and 5V mixed-voltage operation, and an SRAM-based configuration memory that must be reloaded on every power-up. The device is loaded via an industry-standard parallel EPROM, an Altera serial configuration device (EPC1, EPC1064, EPC1213, or EPC1441), or a microprocessor/microcontroller. With 144 user I/O pins (exact count pending datasheet verification), the LQFP package provides a Plastic Quad Flat Pack footprint suitable for surface-mount manufacturing flows. The architecture combines four LE inputs feeding a 4-input LUT, a programmable register, and a chainable carry path that supports efficient adder, counter, and comparator functions. FastTrack continuous routing provides predictable timing and short propagation delays across the die, making the EPF8820 suitable for glue logic, bus interfacing, and small state-machine replacement in cost-sensitive industrial designs. Typical applications include industrial control glue logic, legacy bus-interface bridging (ISA, PC/104, VME), telecommunications backplane interfacing, ASIC prototyping, and replacement of multiple discrete 74-series logic packages. Designers today often select this part for maintenance of long-lifecycle industrial systems rather than green-field designs. When designing with this part, ensure the configuration memory source (EPROM or EPC-series device) is correctly sized for the bitstream, and respect the 3.3V/5V I/O bank constraints to avoid back-driving incompatible peripherals. The device is now considered legacy/end-of-life for new designs; modern alternatives include the Altera (Intel) MAX II CPLD family or Cyclone IV/V FPGAs with comparable user-I/O counts. This page synthesizes distributor stock, same-package FLEX 8000 alternatives from the Site MPN catalog, and practical legacy-design notes not found in any single manufacturer document.

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EPM1270F256 - MAX II 980-Macrocell CPLD, 256-BGA | Altera
EPM1270F256

EPM1270F256 - MAX II 980-Macrocell CPLD, 256-BGA | Altera

The Altera (Intel PSG) EPM1270F256 is a member of the MAX II family of instant-on, non-volatile CPLDs, offering 980 typical equivalent macrocells (1270 LEs) in a 256-pin FineLine BGA package. According to the manufacturer datasheet, the device is built on a 0.18 µm process, operates from a 2.5 V / 3.3 V core supply, and supports user I/O up to 212 pins with a system frequency up to 201.1 MHz. It uses a non-volatile flash configuration cell that delivers instant-on functionality and eliminates external boot memory, simplifying board design in glue-logic and bus-interface applications. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines the architectural simplicity, deterministic timing, and instant-on behavior of classic PAL/GAL logic with modern high-pin-count integration. Within the broader programmable-logic taxonomy, the MAX II family sits between simple 5-V SPLDs and high-density SRAM-based FPGAs: like SPLDs it is non-volatile and pin-configurable, but like an FPGA it integrates thousands of gates and dozens of I/O standards. MAX II devices are widely used as interface bridges, I/O expanders, and timing controllers in cost-sensitive industrial and consumer systems. Key features of the EPM1270F256 include 980 macrocells / 1270 logic elements, 8 Kbits of user flash memory, on-chip voltage regulators supporting 3.3 V, 2.5 V, 1.8 V, and 1.5 V operation, MultiVolt core and I/O supporting mixed-voltage interfacing, JTAG (IEEE 1149.1) boundary-scan programming, and an instant-on configuration time measured in microseconds. The 256-pin FineLine BGA footprint provides flexible I/O bank placement while preserving vertical migration to the EPM570 and EPM2210 in the same package. Architecturally, the EPM1270F256 implements the Logic Array Block (LAB) structure with 16 macrocells per LAB, a fast t<sub>PD</sub> in the single-digit nanosecond range, and a deterministic interconnect that makes it well-suited for I/O glue, address decoding, register insertion, and state-machine implementation. The non-volatile flash cell removes the need for a separate configuration PROM, lowering BOM cost and enabling secure in-system updates via JTAG. Typical applications include bus-interface bridging (e.g., PCI to local bus), I/O expansion and voltage translation, power-up sequencing logic, motor-control and industrial automation glue, LED display driving and refresh, and consumer-electronics control logic where instant-on behavior and low unit cost matter more than raw logic density. When designing with the EPM1270F256, ensure that the chosen I/O standard matches the bank's VCCIO supply and respect the device's MultiVolt I/O rules when bridging 1.5 V, 1.8 V, 2.5 V, and 3.3 V domains. Decoupling must follow the Quartus II power-pin guidance; leaving the on-chip regulator's decoupling incomplete can cause VCCINT ripple that degrades t<sub>PD</sub> margins. This page synthesizes distributor pricing, drop-in alternatives in the same 256-pin FineLine BGA footprint, and practical design notes drawn from the MAX II handbook to give engineers a single decision-ready view not found in the bare datasheet.

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EPM1270F256C5 - MAX II 980 Macrocell CPLD | Altera / Intel | 256-FBGA
EPM1270F256C5

EPM1270F256C5 - MAX II 980 Macrocell CPLD | Altera / Intel | 256-FBGA

The Altera (now Intel) EPM1270F256C5 is a non-volatile, flash-based MAX II complex programmable logic device (CPLD) with 980 macrocells, 212 I/O pins, and a 6.2 ns pin-to-pin logic delay, housed in a 256-ball FineLine BGA package. It operates at 2.5 V/3.3 V core supply, supports 1.8 V, 2.5 V, 3.3 V and 5.0 V LVCMOS/LVTTL I/O standards through Altera MultiVolt core technology, and is built on a 0.18 µm TSMC process with on-chip flash configuration memory that makes the device instantly-on at power-up. What is a CPLD? A Complex Programmable Logic Device is a non-volatile programmable logic IC that combines the deterministic timing and instant-on behavior of traditional PAL/GAL architecture with the density of modern FPGAs. Within the broader programmable logic hierarchy, MAX II CPLDs sit between simple SPLDs/CPLDs (low density, glue logic) and FPGAs (very high density, SRAM-based, volatile). They are widely used as interface bridges, bus controllers, and power-sequencing glue because they boot in microseconds and retain their configuration without external memory. Key features of the EPM1270 include a 201.1 MHz internal operating frequency, support for JTAG (IEEE 1149.1) and in-system programmability (ISP) via the Altera ByteBlaster/USB-Blaster, an embedded User Flash Memory block for storing user data alongside the configuration, and a MultiVolt I/O ring that lets a single part interface with 1.8 V, 2.5 V, 3.3 V, and 5.0 V logic on the same PCB without level shifters. The 'C5' speed grade delivers 6.2 ns tPD with a commercial operating temperature range of 0 °C to +85 °C. Technically, the EPM1270 organizes its 980 macrocells into 16 Logic Array Blocks (LABs), each containing 16 macrocells backed by a product-term array. The 212 user I/Os are distributed across the 256-ball FBGA in a fine-pitch array that supports vertical migration to the larger EPM2210 (256-BGA footprint). The on-chip User Flash block provides up to 8 Kbits of general-purpose non-volatile storage, eliminating external EEPROM in many designs. Typical applications include power-up sequencing for multi-rail FPGA/processor systems, I/O expansion and voltage-level translation between mixed-voltage ASICs, glue-logic consolidation for legacy designs, JTAG-controlled board test multiplexers, and high-performance state-machine controllers in industrial automation, communications infrastructure, and consumer electronics. When designing with the EPM1270F256C5, observe the BGA routing rules (0.8 mm or 1.0 mm ball pitch depending on revision) and provide a clean 2.5 V/3.3 V supply because the core logic is not internally regulated. Use the Quartus II (or later Quartus Prime) design suite for synthesis, fitting, and JTAG programming. This page synthesizes distributor pricing, drop-in pin-compatible MAX II alternatives, and practical BGA-layout design notes that are not aggregated in the manufacturer datasheet, helping engineers shorten BOM qualification cycles and avoid common FineLine BGA routing pitfalls.

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EPM1270F256C5N - MAX II 980-Macrocell CPLD | Intel | Altera
EPM1270F256C5N

EPM1270F256C5N - MAX II 980-Macrocell CPLD | Intel | Altera

The Intel / Altera EPM1270F256C5N is a 980-macrocell, non-volatile, instant-on CPLD from the MAX II family, fabricated on a 0.18-µm process and housed in a 256-ball FineLine BGA package. It integrates 1270 logic elements, 980 macrocells, and 212 user I/O pins with a 6.2 ns pin-to-pin delay and a 201.1 MHz internal frequency. The device supports dual-voltage operation at 2.5 V / 3.3 V, making it compatible with both 2.5 V and 3.3 V logic families on the same board. The EPM1270F256C5N belongs to the MAX II family of instant-on, non-volatile CPLDs based on a 0.18-micron process and is supplied in a 256-FBGA tray. The 'N' suffix denotes a lead-free / Pb-free finish per industry lead-free marking conventions. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic IC that combines AND/OR array-based macrocell architecture with on-chip flash configuration memory, providing instant-on behavior at power-up without an external boot ROM. Within the broader programmable logic hierarchy, CPLDs sit between small SPLDs/GALs and larger FPGAs, and are widely used as glue logic, I/O expanders, bus interface bridges, and power-up sequencers. MAX II CPLDs added low power consumption (multi-core architecture with internal flash) and integrated features such as user flash memory and a JTAG-based programming interface, making them a preferred choice for cost-sensitive control plane logic. Key features of the EPM1270F256C5N include non-volatile flash configuration for instant-on operation (no boot PROM required), 8 Kbits of user flash memory (per MAX II family), a JTAG-compliant IEEE 1149.1 boundary-scan / ISP interface, multi-voltage I/O support, and a chip-wide DEV_OE output enable pin. Multi-core architecture distributes logic across four logic regions, simplifying place-and-route for designs targeting fast pin-to-pin timing. Typical applications include I/O expansion and glue logic in 3.3 V and 2.5 V mixed-voltage systems, power-up sequencing for FPGAs and processors, JTAG-controlled bus bridges, address decoding for memory subsystems, and logic replacement for discrete 74-series TTL/MSI gates. The 256-FBGA package exposes 212 user I/O, allowing direct fan-out for dense parallel buses without external transceivers. When designing with this device, allocate sufficient PCB area for the 256-ball 1.0 mm pitch FBGA and follow Intel/Altera's reflow profile for lead-free BGA assembly. Use Quartus II software for HDL entry, synthesis, fitting, and timing closure; the same design can be retargeted across other MAX II family members with the same 256-pin footprint, simplifying board reuse. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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EPM1270F256I5 - 980-Macrocell MAX II CPLD, 256-FBGA | Altera
EPM1270F256I5

EPM1270F256I5 - 980-Macrocell MAX II CPLD, 256-FBGA | Altera

The Altera (Intel) EPM1270F256I5 is a MAX II family Complex Programmable Logic Device (CPLD) integrating 980 macrocells, 212 user I/O pins, and 8 Kbits of user flash memory in a 256-ball FineLine BGA (FBGA) package. It uses a 0.18 µm process and supports 2.5 V and 3.3 V I/O operation with 1.8 V core. The device provides a maximum internal operating frequency of approximately 201.1 MHz and a pin-to-pin propagation delay of approximately 6.2 ns. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL/GAL-style macrocell blocks on a single chip with a global interconnect fabric. In the system hierarchy it sits between simple PLDs and FPGAs, offering instant-on non-volatile configuration, deterministic timing, and low power. MAX II specifically uses a Look-Up Table (LUT) based logic element, a flash-backed configuration cell, and a MultiTrack interconnect for predictable routing delays, making it a drop-in successor to legacy 5 V CPLDs. Key features of the EPM1270F256I5 include 980 logic elements, in-system programmability via JTAG, support for LVCMOS, LVTTL, PCI, SSTL-2, SSTL-3, and LVDS I/O standards, and an industrial temperature grade (-40 °C to +100 °C junction). The "I5" suffix denotes the industrial speed grade with tPD1 of 6.2 ns. The FBGA-256 package is surface-mount and provides high I/O density in a 17 mm × 17 mm footprint, making the device suitable for glue-logic and bus-interface consolidation where PCBs are constrained for space. Typical applications include I/O expansion and bridging in industrial controllers, power-sequencing and supervisory glue logic in telecom baseboards, bus decoding for legacy microprocessor interfaces, and configurable peripheral drivers. The instant-on behavior is particularly valuable in safety-critical or boot-time-sensitive systems that cannot tolerate FPGA configuration latency. Design consideration: the FBGA-256 package requires PCB design rules with 0.8 mm or 1.0 mm ball pitch, X-ray or rework-grade inspection for assembly, and at least four PCB layers for clean power/ground. Decoupling with 0.1 µF and 10 µF capacitors near each VCCIO/VCCINT ball is required. This page consolidates distributor pricing, drop-in same-family alternatives, and practical design guidance not found in the standalone MAX II datasheet.

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EPM1270F256I5N - 980-Macrocell MAX II CPLD, 256-FBGA | Intel / Altera
EPM1270F256I5N

EPM1270F256I5N - 980-Macrocell MAX II CPLD, 256-FBGA | Intel / Altera

The Intel / Altera EPM1270F256I5N is a 980-macrocell MAX II family Complex Programmable Logic Device (CPLD) housed in a 256-ball FineLine BGA (FBGA-256) package, built on a low-power 0.18-micron Flash-based process. It supports 212 user I/O pins, operates from 2.5 V / 3.3 V external supplies with 1.8 V core, and delivers 201.1 MHz maximum operating frequency with 6.2 ns pin-to-pin logic delay. The I5 speed grade combined with the -40C to +100C industrial temperature range makes this part suitable for demanding embedded control applications. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic IC that sits between simple glue-logic PAL/GAL devices and larger FPGAs in the programmable logic hierarchy: CPLD -> programmable logic -> logic IC -> semiconductor. MAX II CPLDs use a unique MultiCore architecture pairing a LUT-based logic array with Flash configuration memory, providing instant-on behavior at power-up without external boot ROM - a key advantage over SRAM-based FPGAs in cost-sensitive and power-constrained designs. Key features include 980 macrocells (1270 logic elements), 8 Kbits user Flash memory, JTAG IEEE 1149.1 boundary-scan and in-system programmability via JTAG, MultiVolt I/O supporting 1.5 V, 1.8 V, 2.5 V, and 3.3 V interfaces, and a dedicated 3.3 V PCI-compliant I/O bank. The on-chip voltage regulator accepts a single 3.3 V supply and generates the internal core voltage, simplifying power tree design compared to legacy 5 V CPLDs. Typical applications include bus-interface bridging, I/O expansion and voltage-level translation, power-up sequencing logic, and glue-logic consolidation replacing multiple discrete PAL/GAL devices. The instant-on Flash architecture and industrial temperature range make EPM1270F256I5N especially common in telecom line cards, industrial controllers, and automotive infotainment subsystems where deterministic boot behavior is mandatory. When designing with this part, provide a minimum of four PCB layers with continuous ground and power planes for the FBGA-256 ball field, and use the Quartus II (or Quartus Prime Lite) design suite with a USB-Blaster or ByteBlaster for JTAG programming. Decoupling: place 0.1 uF ceramic capacitors within 50 mil of every VCCIO/VCCINT ball group, plus a 10 uF bulk cap near the supply pins. This page synthesizes distributor pricing, drop-in same-family MAX II alternatives, and practical FBGA-256 PCB design notes not collected in a single place in the original Altera datasheet.

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EPM1270T144A5N - MAX II CPLD, 980 Macro Cells, 144-TQFP | Intel
EPM1270T144A5N

EPM1270T144A5N - MAX II CPLD, 980 Macro Cells, 144-TQFP | Intel

The Intel (formerly Altera) EPM1270T144A5N is a MAX II family Complex Programmable Logic Device (CPLD) delivering 980 macro cells and 1270 logic elements in a 144-pin TQFP (T144) surface-mount package. It features a maximum propagation delay of 6.2 ns and supports internal supply voltages of 2.5 V and 3.3 V with an operating supply range of 2.375 V to 3.6 V, making it well-suited for low-power glue-logic and bus-interface bridging in 3.3 V systems. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL-like macrocell arrays with a centralized interconnect matrix. It sits in the programmable logic hierarchy between simple SPLDs (e.g. PAL/GAL) and high-density FPGAs. CPLDs are valued for deterministic timing, instant-on behavior from on-chip Flash configuration memory, and high I/O-count pin flexibility. As part of the MAX II family, the EPM1270T144A5N targets high-volume cost-sensitive applications where instant-on logic and zero-configuration-time boot are essential. Key features include 116 user I/Os, 8 Kbits of embedded Flash user memory, JTAG (IEEE 1149.1) and in-system programmability via the Altera/Intel Quartus toolchain, and a wide -40C to +125C operating temperature range. The automotive-grade temperature suffix ("A5") indicates this part is rated for AEC-Q100-style harsh-environment use, though formal automotive qualification status should be confirmed against the latest Intel product folder. The EPM1270T144A5N uses a non-volatile Flash-based Look-Up Table (LUT) architecture with a global low-skew interconnect, providing predictable pin-to-pin delays that simplify multi-board timing closure. Compared with SRAM-based FPGAs it requires no external boot PROM and powers up ready-to-run, which is a decisive advantage in industrial control and automotive subsystem designs. Typical applications include I/O expansion and bus bridging, power-sequencing and reset-distribution logic, LED and display control, industrial sensor aggregation, automotive body and infotainment glue logic, and consumer electronics control planes. Designers should allocate JTAG pins (TCK/TMS/TDI/TDO) and decoupling capacitors per the MAX II handbook, and verify Quartus II/Quartus Prime support for the EPM1270 device symbol before commit.

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EPM1270T144C3N - MAX II 1270 LE CPLD, 144-pin TQFP | Intel
EPM1270T144C3N

EPM1270T144C3N - MAX II 1270 LE CPLD, 144-pin TQFP | Intel

The Intel (formerly Altera) EPM1270T144C3N is a low-power, non-volatile MAX II Complex Programmable Logic Device (CPLD) with 1270 logic elements, housed in a 144-pin TQFP package. Operating from a single 1.8 V core supply (VCCINT) with 3.3 V I/O (VCCIO), it delivers up to 300 MHz internal performance and instant-on operation thanks to on-chip Flash configuration memory. A Complex Programmable Logic Device (CPLD) is a non-volatile digital IC that implements combinatorial and sequential logic using a macrocell-based architecture with a centralized interconnect. CPLDs sit below FPGAs in the programmable logic hierarchy (CPLD -> PLD -> programmable logic -> digital IC), offering deterministic timing, instant-on configuration, and high drive strength ideal for glue logic, bus bridging, and power-up sequencing. Key features include 1270 logic elements (LEs), 980 equivalent macrocells, 8 Kbits of user Flash memory (UFM), 212 maximum user I/O pins, and MultiVolt I/O support for 1.5 V, 1.8 V, 2.5 V, 3.3 V interfaces. The device supports in-system programmability via IEEE 1149.1 JTAG and IEEE 1532, and offers 4-input look-up tables (LUTs) per logic element. Architecturally, the EPM1270 uses a classic MAX II LAB (Logic Array Block) structure with 16 macrocells per LAB, fast propagation delays (~3.6 ns pin-to-pin at -3 speed grade), and low standby current (~29 mA typical). The on-chip UFM supports up to 8 Kbits of non-volatile user storage, eliminating the need for external EEPROM for parameter storage. Typical applications include bus-interface bridging (e.g., 8/16/32-bit MCU-to-peripheral glue logic), power-up sequencing for FPGAs/ASICs, LED control and display driving, I/O expansion for microcontrollers, and replacement of multiple discrete 74-series logic gates. The wide MultiVolt I/O makes it ideal for mixed-voltage system designs. When designing with this device, evaluate total I/O count against the 212-pin maximum, and derate by at least 10% for routing flexibility. Always use the Quartus II or Intel Quartus Prime design software (free Web Edition) for synthesis, fitting, and JTAG programming. The T144 suffix denotes the 144-pin TQFP package; alternate package options (100-pin TQFP, 256-pin FineLine BGA) are available in the same EPM1270 die family. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, providing engineers with a single reference for sourcing, replacement, and application guidance.

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EPM1270T144C4N - MAX II CPLD 980 LE 144-TQFP | Intel / Altera
EPM1270T144C4N

EPM1270T144C4N - MAX II CPLD 980 LE 144-TQFP | Intel / Altera

The Intel / Altera EPM1270T144C4N is a MAX II family Complex Programmable Logic Device (CPLD) delivering 980 logic elements (LEs) in a 144-pin TQFP package with 2.5 V / 3.3 V mixed-voltage I/O support and a 247.5 MHz internal core frequency. The "T144" suffix confirms the 144-pin TQFP plastic thin quad flat pack, the "C4" suffix denotes the commercial speed grade and 0.7 mm lead pitch, and the trailing "N" indicates a lead-free, RoHS-compliant assembly. A CPLD (Complex Programmable Logic Device) is a non-volatile, instantly-on programmable logic device that sits between a small FPGA and discrete glue logic in the system architecture hierarchy: CPLD -> programmable logic -> digital IC -> semiconductor. Unlike microcontrollers that execute sequential firmware, a CPLD runs parallel hardware state machines implemented in Look-Up Tables (LUTs) and macro cells, providing deterministic sub-nanosecond pin-to-pin propagation delays. MAX II devices in particular use a 1.8 V internal core with on-chip Flash configuration memory, eliminating the external boot PROM that legacy CPLDs required. Key features include 980 logic elements organized into 16 Logic Array Blocks (LABs), 80 user I/O pins, 8 Kbits of user Flash memory, on-chip voltage regulators supporting 3.3 V / 2.5 V / 1.8 V operation, JTAG IEEE 1149.1 boundary-scan support, and MultiVolt I/O allowing interfacing to 1.5 V, 1.8 V, 2.5 V, and 3.3 V logic without external level shifters. The MAX II architecture also embeds the Altera MultiTrack interconnect and delivers low dynamic power dissipation. Architecturally, MAX II combines LUT-based logic with a non-volatile Flash configuration cell so designs are always ready at power-up with no external boot device. The 144-TQFP package offers mature surface-mount assembly compatibility with conventional reflow profiles and supports vertical migration within the same package across the EPM570 / EPM1270 / EPM2210 density steps, allowing designers to scale logic capacity without changing PCB footprints. Typical applications include bus-bridging glue logic between processors and peripherals, I/O expansion for microcontrollers and ASICs, power-sequencing and reset distribution in multi-rail systems, configuration of FPGAs and memories, LED driving and display control, and protocol-bridging glue such as SPI-to-I2C or RGB-to-LVDS conversion. When designing with this device, leave at least 10% of logic resources unused to ease place-and-route and avoid timing closure issues. JTAG chain order must be planned carefully when the EPM1270T144C4N shares a scan chain with other boundary-scan devices, and unused I/O pins should be configured as outputs driving logic low rather than left floating. This page synthesizes distributor pricing, drop-in alternatives drawn from the MAX II family, and practical design notes not found in the manufacturer datasheet alone.

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