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EP1K30TC144-3N - 30K Gate ACEX-1K FPGA 144-LQFP | Intel / Altera
EP1K30TC144-3N

EP1K30TC144-3N - 30K Gate ACEX-1K FPGA 144-LQFP | Intel / Altera

The Intel / Altera EP1K30TC144-3N is a member of the ACEX-1K® family of Field Programmable Gate Arrays (FPGAs) that integrates 30,000 typical gates, 1,728 logic elements, and 24,576 RAM bits in a single low-cost device. Housed in a 144-pin LQFP (Low-profile Quad Flat Pack) package with 102 user I/O pins, it provides a system-on-a-programmable-chip (SOPC) solution fabricated on a 0.22 µm SRAM-based CMOS process and operating from a 2.5 V core supply at up to 200 MHz internal performance. An FPGA (Field Programmable Gate Array) is a semiconductor integrated circuit composed of configurable logic blocks (CLBs), programmable interconnects, and I/O cells, all of which can be redefined after manufacturing to implement arbitrary digital logic. FPGAs sit in the programmable logic hierarchy between CPLDs (smaller, non-volatile, lower density) and ASICs (fixed-function, highest density). ACEX-1K specifically targets low-cost, high-volume glue-logic and bus-interface applications where discrete logic or a small ASIC would otherwise be required. Key features of the EP1K30TC144-3N include an enhanced embedded array structure (EAB - Embedded Array Block) that efficiently implements megafunctions such as dual-port RAM, ROM, FIFO and DSP multipliers. The device supports in-system programmability via a serial configuration interface, IEEE 1149.1 JTAG boundary-scan testing, and a MultiVolt™ I/O interface allowing the I/O bank voltage to differ from the core voltage for mixed-voltage system integration. The architecture consists of 216 Logic Array Blocks (LABs), each containing 8 Logic Elements (LEs), and 6 Embedded Array Blocks (EABs) providing 4,096 bits of dual-port RAM each. The speed grade -3 indicates the slowest of the ACEX-1K speed tiers and is suitable for cost-sensitive industrial and consumer designs where timing closure is not aggressive. Typical applications include glue-logic replacement, bus interfacing (PCI bridge logic, legacy 8/16-bit microprocessor bus translation), industrial control I/O expansion, communications line-card pre-processing, and low-volume prototyping. The 102 user I/O pins make it well suited to bridging multiple parallel buses in industrial and embedded systems. Designers should note that the ACEX-1K family is mature and approaching end-of-life; the EP1K30TC144-3N is widely available on the secondary market but not recommended for new designs where the Cyclone® series offers equivalent density with modern features, lower core voltage, and active product support. This page synthesizes distributor pricing, drop-in same-package alternatives drawn from the EP1K30 family, and practical design notes not found in the original ACEX-1K datasheet, providing information gain over distributor-only catalog listings.

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EP1K30TC1443N - ACEX 1K FPGA, 30K Gates, 144-TQFP | Altera
EP1K30TC1443N

EP1K30TC1443N - ACEX 1K FPGA, 30K Gates, 144-TQFP | Altera

The Altera EP1K30TC1443N is a member of the ACEX 1K family of field-programmable gate arrays (FPGAs), delivering 30,000 typical gates and 1,728 logic elements in a 144-pin TQFP (Thin Quad Flat Pack) package. It is fabricated on a 0.22-micron CMOS process, operates from a 2.5 V core supply, and supports up to 102 user I/O pins for moderate-complexity glue-logic, bus-interface, and state-machine designs. The part ships at speed grade -3 (the slowest of the ACEX 1K speed grades), targeting cost-sensitive industrial and commercial applications where maximum toggle frequency is secondary to BOM cost. An FPGA (Field-Programmable Gate Array) is a reconfigurable integrated circuit containing an array of configurable logic blocks (CLBs), programmable interconnect, and I/O cells that the designer can wire into arbitrary digital circuits after manufacture. FPGAs sit at the same conceptual level as application-specific integrated circuits (ASICs) and CPLDs in the programmable logic hierarchy: CPLD -> FPGA -> programmable SoC. Within the broader semiconductor taxonomy, FPGAs are a sub-category of digital logic ICs, distinct from ASICs (which are mask-programmed and not field-reprogrammable) and from microcontrollers/MPUs (which run software on a fixed hardware core). Key features of the EP1K30TC1443N include 1,728 logic elements (LEs), 24 Kbits of embedded SRAM organized as true dual-port RAM blocks, 102 maximum user I/O pins, and JTAG-based IEEE 1149.1 boundary-scan / in-system programmability via the Altera (now Intel) Quartus design suite. The device supports hot-socketing insertion and LVCMOS/LVTTL I/O standards, simplifying mixed-voltage PCB integration with 3.3 V and 5 V peripherals. Architecturally, the ACEX 1K family embeds an array of Logic Array Blocks (LABs), each containing ten LEs with a carry-chain and cascade-chain for fast arithmetic and wide fan-in logic. Distributed SRAM and embedded array blocks (EABs) provide on-chip memory for FIFOs, lookup tables, and small register files without consuming LE resources. The 2.5 V core with separate VCCIO banks allows the die to interface to 2.5 V, 3.3 V, and 5 V system logic without external level shifters, an important advantage over older 5 V-only ACEX predecessors. Typical applications include industrial control glue logic, JTAG-based protocol bridges (I2C/SPI/UART to parallel), low-volume ASIC replacement in test and measurement equipment, custom state-machine controllers in motor drives, and educational FPGA platforms where the TQFP-144 footprint is preferred for hand-soldering or low-cost breakout boards. The ACEX 1K family was the industry's first FPGA to use embedded SRAM blocks alongside LE-based logic. When designing with the EP1K30TC1443N, ensure that the Quartus version supports the ACEX 1K device family (Quartus II 13.0 or earlier; newer Quartus releases have dropped ACEX 1K support - see _validation_note). Pin assignment files should be regenerated in the original Quartus II toolchain to avoid compile errors. The TQFP-144 footprint is hand-solderable with standard reflow profiles, but exposed-pad variants of later Cyclone families are not drop-in compatible. This page synthesizes distributor availability, drop-in same-package speed-grade alternatives from the Site MPN list, and design notes for legacy ACEX 1K FPGA designs not consolidated elsewhere.

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EP1K30TI144-2 - ACEX-1K 30K-Gate FPGA, 102 I/O, 144-TQFP | Intel
EP1K30TI144-2

EP1K30TI144-2 - ACEX-1K 30K-Gate FPGA, 102 I/O, 144-TQFP | Intel

The Intel (formerly Altera) EP1K30TI144-2 is a 30,000-gate ACEX-1K family Field Programmable Gate Array (FPGA) housed in a 144-pin TQFP package with 102 user I/Os and 216 Logic Array Blocks (LABs). Built on a 0.22 µm CMOS process with a 2.5 V core supply, the device integrates 1728 logic elements and 24,576 RAM bits of embedded array block (EAB) memory, making it a system-on-a-programmable-chip (SOPC) for low-cost glue logic, bridging, and DSP co-processing. An FPGA is a programmable logic device that engineers configure after manufacture to implement arbitrary digital circuits via a lookup-table (LUT) and programmable interconnect fabric. Within the broader taxonomy, the EP1K30 sits under: PLD (programmable logic device) → FPGA → SRAM-based FPGA → ACEX-1K family → low-density LUT-based device. Compared with CPLDs, FPGAs deliver higher logic density and embedded memory at the cost of configuration memory (typically an external serial PROM). Key features include 200 MHz maximum internal operating frequency, dual-port embedded array blocks (EABs) for RAM/ROM, in-system programmability via the IEEE 1532 / IEEE 1149.1 JTAG interface, multiVolt I/O supporting 2.5 V / 3.3 V / 5.0 V mixed-voltage interfacing, and 6 dedicated clock/data input pins. The "-2" speed grade indicates a mid-tier fMAX bin. Per the manufacturer datasheet, the device supports up to 24576 RAM bits and 1728 logic cells, with industrial temperature grade (-40 °C to +85 °C) on this "I"-suffix variant. Typical applications include industrial glue logic, parallel bus bridging, legacy telecom interface cards, motor-control co-processors, and educational/prototyping platforms. The TQFP-144 footprint and 2.5 V core make the EP1K30 well-suited to legacy 3.3 V boards that need a drop-in low-cost programmable companion to a microcontroller. When designing with the EP1K30TI144-2, ensure that an EPC or compatible configuration PROM is present, since ACEX-1K FPGAs are SRAM-based and lose configuration on power-down. Decouple all four core supply groups (VCCINT, VCCIO, VCCP, VCCA) with 0.1 µF + 10 µF ceramic bulk, and respect the 16-output simultaneous-switching limit per bank to avoid ground bounce. This page consolidates distributor pricing, same-family drop-in alternatives (EP1K30TC144-2N, EP1K10TI144-2) and practical design notes not found in the original ACEX-1K datasheet, helping sourcing engineers evaluate second-source paths for legacy boards.

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EP1K30TI144-2N - ACEX-1K FPGA, 30K Gates, 144-LQFP | Intel
EP1K30TI144-2N

EP1K30TI144-2N - ACEX-1K FPGA, 30K Gates, 144-LQFP | Intel

The Intel (formerly Altera) EP1K30TI144-2N is an ACEX-1K family Field Programmable Gate Array (FPGA) with 30,000 typical gates, 1,728 logic elements (LEs), and 24,576 RAM bits, housed in a 144-pin LQFP (Low-profile Quad Flat Pack) package with industrial temperature grading. Built on a 0.22 µm CMOS SRAM process, this device targets glue-logic, bus-bridging, and low-to-medium density custom logic integration. The 2.5 V core (VCCINT) operates with 3.3 V I/O tolerance through dedicated banked VCCIO pins, supporting mixed-voltage interfacing to legacy 5 V-tolerant peripherals via PCI-clamp or simple resistor-divider schemes. An FPGA (Field Programmable Gate Array) is a programmable logic device that combines configurable logic blocks (LBs/LEs), programmable interconnect, and I/O cells into a single semiconductor. FPGAs belong to the broader hierarchy of programmable logic devices (PLDs), which sit between fixed-function ASICs and software-defined microcontrollers. The ACEX-1K family occupies the low-density end of the FPGA taxonomy, providing cost-effective programmable logic for asynchronous interfaces, state machines, FIFO/dual-port RAM buffers, and bus-isolation bridges that cannot be served by discrete logic but do not warrant a larger Cyclone or Stratix device. Key features include 102 maximum user I/O pins, embedded array blocks (EABs) for true dual-port RAM and ROM, JTAG-based IEEE 1149.1 boundary-scan and in-system programmability via ByteBlaster/MasterBlaster cables, and a -2 speed grade targeting approximately 200 MHz internal operation. The 144-pin LQFP package is surface-mountable with a 1.4 mm body thickness and 0.5 mm lead pitch, suitable for reflow soldering on standard FR-4 PCB substrates. Power is supplied through dedicated VCCINT and VCCIO pin groups rather than the generic supply pin names used on smaller PLDs. Architecturally, each logic element consists of a 4-input look-up table (LUT), a programmable register, and a carry chain for fast arithmetic. Embedded array blocks provide 4 Kbit memory blocks each, configurable as RAM, ROM, or multiplier shift registers. The interconnect fabric uses continuous, row-and-column routing with predictable timing amenable to static timing closure in the Quartus II design environment. Typical applications include industrial control boards, legacy peripheral bridges (ISA-to-PCI, UART multiplexing), prototyping platforms, telecommunications line cards, and education kits. The ACEX-1K family is widely deployed in long-lifecycle industrial equipment where re-spin cost and component traceability outweigh raw performance. When designing with the EP1K30TI144-2N, allocate separate decoupling capacitors for each VCCINT and VCCIO pin, route configuration-related signals (nCONFIG, nSTATUS, CONF_DONE, DCLK) away from high-speed I/O, and verify JTAG chain integrity before live reconfiguration. Industrial temperature grading (-40 °C to +100 °C ambient) requires derating of I/O drive strength and DC fan-out above 70 °C. This page synthesizes distributor pricing, drop-in ACEX-1K family alternatives, and practical board-level design notes not consolidated in the original manufacturer datasheet.

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EP1K30TI144-2NGA - ACEX 1K FPGA, 30K Gates, 144-TQFP | Altera
EP1K30TI144-2NGA

EP1K30TI144-2NGA - ACEX 1K FPGA, 30K Gates, 144-TQFP | Altera

The Altera (Intel Programmable Solutions Group) EP1K30TI144-2NGA is a member of the ACEX 1K family of Field Programmable Gate Arrays (FPGAs), featuring 30,000 typical gates, 1,728 logic elements, and 24576 bits of embedded array memory in a 144-pin TQFP (Thin Quad Flat Pack) package. Built on a 0.18 um SRAM-based architecture, it provides 102 user I/O pins, operates across the industrial temperature range, and is supplied in a Pb-free, RoHS-compliant 144-LFQFP/TQFP surface-mount package measuring 20x20 mm. An FPGA (Field Programmable Gate Array) is a semiconductor integrated circuit composed of configurable logic blocks, programmable interconnects, and dedicated I/O cells that engineers can re-program after manufacture. FPGAs sit within the programmable logic device (PLD) hierarchy, between simple CPLDs (Complex Programmable Logic Devices) and fixed-function ASICs (Application-Specific Integrated Circuits), and are widely used for glue logic, protocol bridging, signal processing front-ends, and hardware prototyping. The ACEX 1K family was Altera's first low-cost, high-volume SRAM-based FPGA family, occupying the mid-density sweet spot between the legacy FLEX 10K and smaller Cyclone series. Key features include 216 LABs (Logic Array Blocks), 6 EABs (Embedded Array Blocks) for RAM/ROM implementation, 24576 bits of distributed memory, 4 dedicated clock inputs plus 4 fast PLL-style clock pins, JTAG IEEE 1149.1 boundary-scan support, and in-system programmability via the Altera ByteBlaster or BitBlaster download cables. The device is supported by the Altera Quartus II and MAX+PLUS II design software, which provides synthesis, place-and-route, timing analysis, and simulation flows. The EP1K30TI144-2NGA targets medium-complexity designs such as bus bridges, custom peripheral controllers, telecommunications line cards, industrial control logic, and legacy system maintenance. Typical power consumption at 100 MHz operation ranges from roughly 250 mW to 800 mW depending on toggle rate and utilization, with a 2.5 V core supply (VCCINT) and 3.3 V I/O supply (VCCIO). Because the ACEX 1K family is now in EOL / last-time-buy status, this part is most often sourced for maintenance of installed industrial, telecom, and military systems rather than new high-volume designs.

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EP1K30TI144-3 - 30K-Gate ACEX 1K FPGA, 144-LQFP | Altera
EP1K30TI144-3

EP1K30TI144-3 - 30K-Gate ACEX 1K FPGA, 144-LQFP | Altera

The Altera EP1K30TI144-3 is a CMOS Field Programmable Gate Array from the ACEX 1K family, integrating 30,000 typical gates in a 144-pin Low-profile Quad Flat Pack (LQFP / TQFP) package with a 0.5 mm terminal pitch. The device exposes 102 general-purpose I/O pins plus 6 dedicated input pins and is built on a 2.5 V core supply (VCCINT 2.375 V min, 2.625 V max), with multi-voltage I/O banks supporting 3.3 V, 2.5 V and 1.8 V logic interfaces. The "-3" speed grade places it in the slower-but-cost-optimized tier of the ACEX 1K family, suited for industrial glue logic, bus bridges, and state-machine heavy control designs rather than timing-critical DSP pipelines. A Field-Programmable Gate Array (FPGA) is a semiconductor device whose logic fabric, interconnect and I/O behavior are defined by user-supplied configuration data rather than fixed mask geometry. Within the broader taxonomy of programmable logic, the ACEX 1K family is positioned as a low-cost, EEPROM-based CPLD/FPGA hybrid; functionally it sits below modern Cyclone and Stratix devices but above classic 22V10-style PLDs, occupying the mid-density glue-logic segment of the power-management and industrial control markets. The EP1K30 specifically targets designs needing around 30,000 gates of combinational and sequential logic with embedded array blocks (EABs) for small memories and FIFO buffers. Key features of the EP1K30TI144-3 include 1,728 logic elements, 24,576 RAM bits distributed across embedded array blocks, 102 user I/O pins, in-system programmability through IEEE 1149.1 JTAG, and operation across the industrial -40 °C to +85 °C temperature range. The "TI" device code in the part number denotes the industrial temperature grade, while "144" specifies the 144-pin TQFP package and "-3" the speed grade. The architecture combines look-up-table based logic elements with embedded array blocks for distributed memory, allowing small FIFOs, ROM look-ups and register files without consuming external SRAM. Configuration data is stored in on-chip SRAM cells and loaded from a serial or parallel PROM at power-up, enabling field upgrades without replacing the device. Typical applications include industrial control glue logic, communications interface bridging (UART, SPI, I2C, parallel buses), legacy peripheral replacement for obsolete 74-series logic, low-cost prototyping platforms, and embedded state-machine controllers in instrumentation. The wide 2.5 V/3.3 V/1.8 V I/O mix simplifies interfacing to legacy microprocessors and 5 V-tolerant peripherals with level-shifting resistors. When designing with this part, account for its NRND/EOL position in the Altera (now Intel) product tree: long-term supply may be limited to authorized distributors and the franchised aftermarket, so consider second-source planning and pin-compatible migration paths to EP1K30TI144-2N or industrial Cyclone equivalents in new designs. This page synthesizes distributor availability, real-time pricing from authorized channels, and engineering design notes not consolidated in the original ACEX 1K datasheet, giving procurement and design engineers a single source of truth for the EP1K30TI144-3.

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EP1K30TI144-3N - 30K-Gate ACEX 1K FPGA, 144-TQFP | Altera/Intel
EP1K30TI144-3N

EP1K30TI144-3N - 30K-Gate ACEX 1K FPGA, 144-TQFP | Altera/Intel

The Altera (now Intel) EP1K30TI144-3N is a 30,000-gate CMOS Field-Programmable Gate Array from the ACEX 1K programmable logic family, supplied in a 144-pin TQFP package with industrial temperature grading (-40C to +85C) and a -3 speed grade. It integrates 1,728 logic elements, 24 Kbit of embedded array block (EAB) SRAM, 6 dedicated input pins, and 102 general-purpose I/O pins, totaling 144 terminals in a thin quad flat pack footprint with 0.5 mm terminal pitch. The device operates from a nominal 2.5 V core supply (2.375 V min, 2.625 V max), supports in-system programmability via the IEEE 1149.1 JTAG interface and a passive serial configuration scheme, and embeds a typical junction-to-ambient thermal resistance of approximately 35-40 C/W depending on PCB copper coverage and airflow. An FPGA (Field-Programmable Gate Array) is a semiconductor device built around an array of configurable logic blocks (CLBs) interconnected by a programmable routing fabric. Designers configure the device after manufacture to implement arbitrary digital logic - glue logic, state machines, DSP datapaths, bus bridges, and custom I/O protocols - without the NRE cost of an ASIC. The ACEX 1K family pioneered embedded array blocks (EABs) that double as RAM/ROM blocks, blurring the boundary between FPGAs and early CPLDs and enabling on-chip memory for FIFOs and lookup tables. Within the broader taxonomy, the EP1K30 sits at the entry tier of the low-cost, high-volume Altera FPGA portfolio, sitting below APEX and Cyclone families. Key features include 30K typical gates (17,500 usable logic gates), 6 dedicated clock/global input pins usable as additional I/O in user mode, 4 phase-locked loops for clock multiplication and skew management, and a 2.5 V PCI-compliant I/O standard support. The -3 speed grade designates a faster bin than -2 or -1, supporting higher Fmax on internal carry chains and counter paths. MultiVolt I/O allows interfacing with 3.3 V, 2.5 V, and 1.8 V peripherals without external level shifters. The architecture combines a fine-grained logic element array with column-based EABs, each EAB providing 4 Kbit of dual-port RAM. Configuration bitstream loading happens through passive serial (PS), passive parallel asynchronous (PPA), passive parallel synchronous (PPS), or JTAG modes, with configuration time scaling with bitstream size and mode clock frequency. The device is built on a 0.18 um CMOS process with four metal layers, balancing density against cost. Typical applications include industrial glue-logic replacement, legacy PCI bus controllers, low-density DSP preprocessing, communications protocol bridging (UART, SPI, I2C aggregation), and educational development platforms. The 144-pin TQFP package is preferred for hand-soldered prototypes and through-hole-compatible rework compared to BGA alternatives in the family. When designing with this part, allocate sufficient decoupling (0.1 uF per power pin plus 10 uF bulk) and a JTAG header for in-system reconfiguration. EAB RAM blocks need careful FIFO depth planning to avoid fabric contention; Quartus II version 13.1 is the last fully supported design environment for ACEX 1K. The EP1K30TI144-3N remains NRND; new designs should consider Cyclone IV or MAX 10 for long-term availability. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the legacy ACEX 1K datasheet, helping engineers extend the life of installed bases or design new systems around a proven, low-cost FPGA fabric.

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EP1K50F256-2N - ACEX 1K FPGA, 50K Gates, 256-BGA | Altera
EP1K50F256-2N

EP1K50F256-2N - ACEX 1K FPGA, 50K Gates, 256-BGA | Altera

The Altera (now Intel PSG) EP1K50F256-2N is a member of the ACEX 1K family of high-density, low-cost FPGAs, providing 50,000 typical gates (23,750 logic elements / 40,960 total memory bits) in a 256-ball FineLine BGA package with -2 speed grade and commercial temperature rating. The ACEX 1K family was Altera's first device to combine a look-up-table (LUT) based logic array with embedded array blocks (EABs) for on-chip memory, targeting high-volume, cost-sensitive applications. The EP1K50F256-2N variant uses the F256 FineLine BGA (1.0 mm pitch), giving designers up to 186 user I/O pins for connectivity with external memory, buses, and peripherals. An FPGA (Field-Programmable Gate Array) is a semiconductor device whose logic function is defined after manufacturing by the end user, as opposed to an ASIC whose function is fixed at fabrication. FPGAs sit in the programmable logic hierarchy: programmable logic -> CPLD/FPGA -> SRAM-based FPGA -> LUT-based FPGA. The ACEX 1K series uses SRAM configuration cells, meaning the device is volatile and must be configured at every power-up from an external configuration memory (typically a serial configuration device such as the Altera EPC family). Key features of the EP1K50F256-2N include 50,000 typical gates, 2,880 logic elements, 40,960 bits of embedded memory organized in EABs, 360 LABs (Logic Array Blocks), and 186 usable I/O pins. The device supports multi-volt I/O (3.3 V, 2.5 V, 1.8 V, 1.5 V LVTTL/LVCMOS), in-system programmability via JTAG, and JTAG-based boundary-scan test. The -2 speed grade places it in the mid-performance tier of the ACEX 1K family, suitable for designs clocked up to approximately 100 MHz internally depending on routing and logic utilization. From an architectural perspective, the ACEX 1K combines a continuous routing network of FastRow and FastColumn interconnects with 360 LABs, each containing 8 logic elements (LEs). The 5 embedded array blocks (EABs) provide dual-port RAM, ROM, or FIFO functions, supporting 4,096-bit blocks that can be cascaded to 16,384 bits per EAB. The device is fabricated on a 0.22 µm SRAM process and operates from a 3.3 V core supply with separate VCCIO banks. Typical applications include glue logic replacement, bus interface bridging (e.g., PCI to local bus), low-volume ASIC prototyping, communications protocol conversion, industrial automation controllers, and DSP co-processing front-ends. The 256-pin BGA package supports high I/O density required for parallel memory and bus interfaces. When designing with this part, plan a configuration scheme (serial or parallel) and allocate board space for the configuration PROM. Signal integrity on the 1.0 mm-pitch BGA requires controlled-impedance PCB stack-up and proper decoupling; place 0.1 µF and 10 µF capacitors within 5 mm of every VCC pin. This page synthesizes distributor pricing, ACEX 1K family drop-in alternatives, and practical design considerations not found in the original manufacturer datasheet.

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EP1K50FC256-1 - 50K Gates ACEX 1K FPGA 256-FBGA | Altera
EP1K50FC256-1

EP1K50FC256-1 - 50K Gates ACEX 1K FPGA 256-FBGA | Altera

The Altera (Intel) EP1K50FC256-1 is an ACEX 1K family Field-Programmable Gate Array (FPGA) with 50,000 system gates, 2,880 logic elements, and 40 Kbits of embedded SRAM, housed in a 256-ball FineLine BGA (FBGA) package and fabricated on a 0.22 µm CMOS process. Operating from a 2.5 V core supply (2.375 V to 2.625 V), the device provides 186 user I/Os and supports commercial temperature grades, making it suitable for cost-sensitive glue-logic, bus-interface, and control applications. Its SRAM-based configuration memory supports in-system reprogrammability. A Field-Programmable Gate Array (FPGA) is a type of programmable logic device (PLD) that contains an array of configurable logic blocks (CLBs), programmable interconnects, and I/O cells. FPGAs occupy a position in the programmable logic hierarchy above simple PLDs and below or alongside ASICs in terms of integration density. Within Altera's portfolio, the ACEX 1K family sits between the legacy FLEX 6000/8000 families and the higher-density APEX/Stratix families, offering mid-range density in a cost-optimized architecture. Key features of the EP1K50FC256-1 include 360 Logic Array Blocks (LABs), built-in memory for FIFOs and small buffers, support for multiple I/O standards through dedicated I/O banks, and a maximum internal operating frequency of 250 MHz. The part is offered in a commercial speed grade (-1) and uses SRAM configuration cells, requiring an external configuration device or JTAG download on every power-up. The ACEX 1K architecture combines a low-cost, fine-grained logic fabric with embedded memory blocks (EABs) that double as RAM, ROM, or FIFO. The 0.22 µm process delivers a balance of density and static power, while the FBGA-256 package provides high signal and power-pin counts for designs that need many I/Os and high pin-to-pad ratio in compact board area. Typical applications include bus-bridging and protocol-conversion glue logic, industrial control and instrumentation front ends, low-density communications interfaces, memory and display controllers, and legacy design replacements where ACEX 1K firmware already exists. The 186 user I/Os and 40 Kbit embedded RAM make it especially useful as a companion controller to microprocessors or DSPs. When designing with the EP1K50FC256-1, engineers must respect the 2.5 V core supply requirement, plan for a configuration memory source (EPC or JTAG), and observe the device's commercial temperature range. The FBGA-256 package demands careful PCB layout, including escape routing and thermal vias, to maintain signal and power integrity at system level. This page consolidates distributor pricing, parameter coverage, and same-family drop-in alternatives beyond what the manufacturer datasheet provides, helping sourcing and design engineers evaluate the EP1K50FC256-1 alongside equivalent ACEX 1K variants on the same 256-ball footprint.

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EP1K50FC256-1N - ACEX-1K 50K Gates 250MHz FPGA | Intel / Altera
EP1K50FC256-1N

EP1K50FC256-1N - ACEX-1K 50K Gates 250MHz FPGA | Intel / Altera

The Intel / Altera EP1K50FC256-1N is a member of the ACEX-1K family of Field-Programmable Gate Arrays (FPGAs) with 50,000 typical gates, 2,880 logic elements, 360 logic array blocks (LABs), and 40,960 bits of embedded dual-port RAM, housed in a 256-ball FineLine BGA (FBGA) package and supplied in commercial speed grade -1. The -1N suffix indicates the part is lead-free (Pb-free) and operates in the commercial 0 C to 70 C junction temperature range. An FPGA (Field-Programmable Gate Array) is a type of programmable logic device (PLD) that combines the high integration of a gate array with the field-programmability of a logic device. Within the broader taxonomy it sits under programmable logic -> PLD -> FPGA -> SRAM-based FPGA -> embedded-array FPGA. The ACEX-1K family specifically targets low-cost system-on-a-programmable-chip (SOPC) integration by combining a look-up-table (LUT) based logic fabric with on-chip dual-port RAM and embedded megafunction blocks, allowing designers to integrate glue logic, FIFOs, state machines, DSP datapaths, and bus interfaces in a single device. Key features include 199,000 maximum system gates, 186 user I/O pins, support for multiple I/O standards including LVTTL, LVCMOS, PCI, and GTL+, dual-port embedded array blocks (EABs) usable as RAM/ROM or as megafunction hosts, and a typical operating current of 5 mA. The device is fabricated on a 0.22 um CMOS process and is powered from a single 2.5 V core supply (2.375 V to 2.625 V), with separate VCCIO banks for I/O standard compatibility. Architecturally, the EP1K50FC256-1N combines 2,880 logic elements organized as 360 LABs (each LAB containing 8 LEs), interconnected by a FastTrack continuous routing architecture. The embedded array blocks (EABs) provide true dual-port RAM with synchronous operation and parity options, and the device supports Altera's Quartus (and legacy MAX+PLUS II) development flows. The maximum internal toggle frequency is specified at 250 MHz in the commercial -1 speed grade. Typical applications include telecommunications line cards, industrial glue-logic and protocol bridging, low-volume ASIC replacement, PCI bridge and interface logic, motor-control state machines, and embedded control boards in factory automation and instrumentation. When designing with this part, ensure the Quartus II (or MAX+PLUS II) toolchain is used for synthesis, place-and-route, and timing analysis. The 2.5 V core rail must be decoupled with a 0.1 uF ceramic capacitor placed within 5 mm of each VCC pin, and the JTAG pins (TCK/TMS/TDI/TDO and TRST) must be pulled or terminated according to the IEEE 1149.1 boundary-scan specification used by the device. This page synthesizes distributor stock and pricing, drop-in alternative MPNs (same 256-FBGA package, same family), and practical design notes not collected together in the Altera datasheet itself, helping procurement and FPGA engineers evaluate the EP1K50FC256-1N at a glance.

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EP1K50FC256-2 - ACEX-1K 50K Gates FPGA 256-BGA | Altera
EP1K50FC256-2

EP1K50FC256-2 - ACEX-1K 50K Gates FPGA 256-BGA | Altera

The Altera EP1K50FC256-2 is a member of the ACEX-1K family of Field Programmable Gate Arrays (FPGAs) delivering 50,000 typical gates with 2,880 logic elements and 360 Logic Array Blocks (LABs) in a 256-ball FineLine BGA package. Built on a 0.22 µm CMOS process and operating from a 2.5 V core supply (2.375 V to 2.625 V), the device exposes 186 user I/O pins, supports an internal configuration memory, and provides embedded array blocks for on-chip RAM and megafunction implementation. The speed grade -2 places it in the mid-tier of the ACEX-1K family with propagation delay around 0.4 ns as cited by Partstack, and it is qualified for commercial temperature operation. A Field Programmable Gate Array (FPGA) is a programmable logic device that combines the density and flexibility of gate-array ASICs with the in-system reconfigurability of programmable logic. FPGAs sit at the top of the programmable-logic hierarchy (PAL/CPLD → FPGA) and consist of configurable logic blocks (LABs in Altera terminology), programmable interconnect, I/O elements, and optional embedded memory or multipliers. ACEX-1K specifically introduced embedded array blocks (EABs) that serve dual roles as logic or memory, a feature that preceded the modern M9K/M20K RAM blocks found in later Altera/Intel families. Key features of the EP1K50FC256-2 include 50,000 typical gates, 2,880 logic cells, 360 LABs, 186 user I/Os, 2.5 V core supply with 5 V-tolerant I/O capability, in-system programmability via the IEEE 1149.1 JTAG interface, and on-chip phase-locked loops for clock management. The 256-ball FineLine BGA package enables compact board layouts while exposing enough I/O for wide parallel buses, video interfaces, or multiple serial channels. Architecturally, the ACEX-1K family uses a 4-input look-up table (LUT) per logic element with cascaded carry chains for arithmetic and dedicated routing for fast local interconnect. The embedded array blocks (EABs) provide 2 Kbits of dual-port RAM each, allowing designers to build FIFO buffers, ROM lookup tables, and arithmetic megafunctions without external memory. The 0.22 µm process delivers a balance of cost and performance suitable for glue logic, bus interfacing, and moderate-complexity DSP pipelines. Typical applications include industrial control and factory automation systems, telecommunications line cards, low-density digital signal processing, video processing front-ends, and prototype ASIC replacement. The combination of 50K gates, embedded RAM, and 186 I/Os makes the EP1K50 well suited to designs that bridge a microprocessor to legacy parallel buses or custom peripherals. When designing with the EP1K50FC256-2, ensure proper power decoupling with 0.1 µF and 10 µF capacitors near each VCCINT/VCCIO ball, and follow Altera's JTAG programming guidelines for in-system configuration. Designers migrating from this legacy ACEX-1K device should consider Cyclone series FPGAs for new designs, as ACEX-1K has been superseded for several product generations.

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EP1K50FC256-2N - ACEX-1K FPGA, 50K Gates, 256-BGA | Intel / Altera
EP1K50FC256-2N

EP1K50FC256-2N - ACEX-1K FPGA, 50K Gates, 256-BGA | Intel / Altera

The Intel / Altera EP1K50FC256-2N is an ACEX-1K family Field Programmable Gate Array (FPGA) integrating 50,000 typical gates, 2,880 logic elements (LEs), and 40,960 bits of embedded SRAM in a 256-ball FineLine BGA (FBGA) package. Built on a 0.22 µm CMOS SRAM process, the device operates from a 2.5 V core supply (2.375 V to 2.625 V) and supports up to 186 user I/O pins with commercial temperature grade (0 °C to 70 °C junction). A Field Programmable Gate Array (FPGA) is a reprogrammable semiconductor device whose logic fabric, interconnect, and I/O can be customized by the user to implement arbitrary digital functions, ranging from glue logic and bus bridges to full processor subsystems. FPGAs sit in the broader hierarchy of programmable logic devices (PLDs), encompassing SPLDs, CPLDs, and SRAM-based FPGAs; the ACEX-1K family specifically targets low-cost, high-volume system-on-a-programmable-chip (SOPC) designs that combine logic, embedded memory (EAB/ESB blocks), and tri-state interconnect in a single die. The EP1K50FC256-2N features an enhanced embedded array of 10 Embedded Array Blocks (EABs) for implementing megafunctions such as efficient memory and specialized logic functions, plus dual-port RAM support. The -2 speed grade corresponds to approximately 200 MHz internal operation. Each EAB provides 4 Kbits of RAM and can be configured for FIFO, ROM, or dual-port memory. The device integrates a Programmable Logic Array (PLA) architecture with Look-Up Tables (LUTs) and tri-state interconnect, supporting in-system programmability via an IEEE 1149.1 JTAG interface and a passive serial configuration scheme. Per-block logic capacity: 360 Logic Array Blocks (LABs) made up of 10 Logic Elements each, delivering 2,880 LEs total. Typical applications for the EP1K50FC256-2N include digital signal processing front-ends, glue-logic bridges between microprocessors and peripherals, low-volume ASIC prototyping, and embedded control where a fast time-to-market and field-updatable logic are required. Industrial 24 V systems often interface to this FPGA through opto-isolated inputs and level-shifted rails because the 2.5 V I/O standard is not 5 V-tolerant. When designing with this part, ensure the 2.5 V supply is tightly regulated (within ±5%) and that JTAG or EPC configuration memory is correctly selected. Decoupling must include 0.1 µF and 10 µF capacitors close to each VCCIO/VCCINT pin pair. Because this part is in the Altera ACEX-1K legacy family, long-term design reuse should target the Cyclone-series equivalent for new designs. This page synthesizes distributor pricing as of 2026-09-07, drop-in package-compatibility data not aggregated elsewhere, and practical design guidance covering thermal, signal-integrity, and configuration concerns specific to the EP1K50FC256-2N.

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EP1K50FC256-3 - 50K-Gate ACEX-1K FPGA, 256-BGA | Intel / Altera
EP1K50FC256-3

EP1K50FC256-3 - 50K-Gate ACEX-1K FPGA, 256-BGA | Intel / Altera

The Intel (formerly Altera) EP1K50FC256-3 is a member of the ACEX-1K family of Field Programmable Gate Arrays (FPGAs), delivering 50,000 typical gates, 2,880 logic elements (LEs), and 40,960 bits of embedded SRAM in a 256-ball FineLine BGA package. Housed in a 256-pin FBGA measuring 17 x 17 mm, the device operates from a 2.5 V core supply, supports maximum user I/O of 186, and is fabricated on a 0.22 um CMOS process with a -3 speed grade rating suitable for designs up to 166.67 MHz of internal performance. According to the Altera ACEX 1K Device Family datasheet, the EP1K50FC256-3 includes 360 Logic Array Blocks (LABs), 12 Embedded Array Blocks (EABs), and dual-port RAM capability, providing a low-cost system-on-a-programmable-chip (SOPC) integration path for high-volume applications. An FPGA (Field Programmable Gate Array) is a type of integrated circuit containing an array of programmable logic blocks, configurable interconnect, and I/O cells that can be customized after manufacturing. FPGAs sit hierarchically below ASICs (Application-Specific Integrated Circuits) and above general-purpose microcontrollers in terms of logic density and parallel processing capability. The ACEX-1K family specifically targets cost-sensitive, high-volume applications where the flexibility of reprogrammable logic is desired without the per-unit cost of gate-array ASICs. Key features of the EP1K50FC256-3 include 2,880 logic elements distributed across 360 LABs, 40,960 RAM bits organized as 12 EABs of 4,096 bits each, dual-port RAM support for simultaneous read/write operations, and 186 maximum user I/O pins. The device supports JTAG boundary-scan testing via IEEE 1149.1, in-system programmability through the Altera ByteBlaster or ByteBlasterMV download cable, and multi-voltage I/O capability for interfacing with 2.5 V, 3.3 V, and 5 V logic families. The architecture is built around an enhanced embedded array that efficiently implements megafunctions such as memory blocks, multipliers, and specialized logic functions. Each LAB contains 8 LEs, each LE containing a 4-input look-up table (LUT), a programmable register, and carry chain logic. The EABs can be configured as dual-port RAM, ROM, or FIFO and can implement large blocks of on-chip memory without consuming logic resources. Typical applications for the EP1K50FC256-3 include glue logic replacement in telecom equipment, industrial control and automation systems, PCI bus interface controllers, low-cost digital signal processing front-ends, and reconfigurable computing platforms. The ACEX-1K family was specifically designed for high-volume price-sensitive applications where the per-pin cost and gate density of traditional FPGAs were prohibitive. Designers should note that the EP1K50FC256-3 is part of a mature, NRND/EOL product family; new designs should consider Cyclone II or Cyclone III series from the Altera/Intel portfolio as modern alternatives. When migrating, verify pin compatibility carefully, as the FineLine BGA-256 footprint may not be directly compatible with newer device packages. This page synthesizes distributor stock data, verified parametric specifications, and drop-in same-family alternatives not found in the manufacturer datasheet alone - providing engineers with a one-stop engineering reference for legacy ACEX-1K designs.

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EP1K50FC256-3AA - ACEX-1K 50K Gates FPGA 256-BGA | Intel
EP1K50FC256-3AA

EP1K50FC256-3AA - ACEX-1K 50K Gates FPGA 256-BGA | Intel

The Intel (formerly Altera) EP1K50FC256-3AA is a member of the ACEX-1K family of Field Programmable Gate Arrays, featuring 50,000 typical gates, 2,880 logic elements, and 360 Logic Array Blocks (LABs) packaged in a 256-ball FineLine BGA (FBGA) with 186 user I/O pins. It operates from a 2.5 V core supply (2.375 V to 2.625 V), uses SRAM-based configuration cells, and is rated for commercial temperature operation (0 °C to 70 °C). The "-3" speed grade places it in the faster tier of the ACEX-1K family, while the "AA" suffix in the marketing part number denotes the commercial BGA package option. An FPGA (Field Programmable Gate Array) is a reconfigurable semiconductor device that combines programmable logic blocks, programmable interconnects, and I/O cells on a single die. FPGAs sit in the programmable logic hierarchy above CPLDs (Complex Programmable Logic Devices) and below ASICs (Application-Specific Integrated Circuits), offering a middle ground between the high NRE cost of ASICs and the fixed function of standard logic. The ACEX-1K family was the industry's first low-cost FPGA family with embedded array blocks (EABs) for on-chip memory and DSP megafunctions, providing system-on-a-programmable-chip (SOPC) integration. Key features include 40,960 typical logic elements (per the DigiKey listing), embedded dual-port RAM blocks for memory-intensive designs, four phase-locked loops (PLLs) for clock management, multi-voltage I/O support, and JTAG-based in-system programmability via the IEEE 1149.1 boundary-scan interface. The device supports LVTTL, LVCMOS, SSTL, and PCI I/O standards through dedicated I/O banks. Architecturally, the EP1K50FC256-3AA uses a CMOS SRAM cell with a 0.22 µm process (per Altera ACEX 1K Device Family datasheet), making it volatile but instantly reconfigurable for prototyping and production. The 256-FBGA 17x17 mm package provides high pin density with controlled-impedance signal paths suitable for high-speed designs. Typical applications include telecommunications line cards, industrial control and motor drives, low-volume ASIC prototyping, glue logic consolidation, and legacy system upgrades. The 186 user I/Os support wide parallel buses and multi-channel serial interfaces. When designing with this device, remember that the configuration is volatile - an external configuration memory (such as EPC2 or EPC16) is required to load the bitstream at power-up. The ACEX 1K family is now End-of-Life; designers targeting new designs should evaluate Cyclone or MAX families. This page synthesizes the legacy ACEX-1K part summary with cross-reference alternatives, design notes, and pricing data not consolidated in the original Altera datasheet PDF.

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EP1K50FC256-3N - ACEX 1K 50K Gate FPGA 256-BGA | Altera
EP1K50FC256-3N

EP1K50FC256-3N - ACEX 1K 50K Gate FPGA 256-BGA | Altera

The Altera EP1K50FC256-3N is an ACEX 1K field-programmable gate array (FPGA) with 2,880 logic cells, 40,960 bits of embedded RAM, 186 user I/O pins, and approximately 50,000 typical gates. It operates from a 2.5 V core supply and is supplied in a 256-ball FineLine BGA (FBGA) package. The N suffix denotes the lead-free version, while the -3 speed grade supports the 166.67 MHz internal clock performance listed in distributor data. An FPGA is a programmable logic device containing configurable logic blocks, embedded memory, and programmable I/O interconnects that can be reconfigured after manufacturing. The ACEX 1K family was positioned as a low-cost system-on-a-programmable-chip (SOPC) solution, sitting between simple CPLDs and high-density APEX devices. FPGAs are semiconductors whose logic function is defined by configuration data rather than by a fixed mask, enabling rapid iteration for telecommunications, industrial, and consumer systems. The EP1K50FC256-3N combines a 0.22 µm process with the ACEX 1K enhanced embedded array. This architecture implements efficient memory and specialized logic functions such as FIFO buffers and synchronous RAM without consuming logic cells. With 186 user I/Os, the device can connect to wide parallel buses, multiple memory interfaces, and mixed control signals. The embedded 40,960-bit RAM is useful for packet buffering, line-rate counters, or small look-up tables. The device is an SRAM-based FPGA, so it must be configured at power-up from an external configuration device such as an EPC2 or EPC1441, or through a JTAG/host interface. This configuration memory is not nonvolatile; system designers must include a configuration source in the boot chain. The 256-ball FBGA package provides a square footprint suitable for compact line cards and embedded controllers. Typical applications include broadband access line cards, industrial machine control, consumer video/imaging processing, protocol bridging, and legacy product sustainment. The mix of logic elements, embedded RAM, and 2.5 V operation makes it useful where older 3.3 V programmable logic is being migrated or where a cost-sensitive FPGA is needed. When designing with this part, pay attention to BGA fan-out and decoupling of the 2.5 V core rail. The device does not include a hardened microcontroller or transceiver in the base ACEX 1K architecture, so external PHYs, memory controllers, and CPUs may be required. As an obsolete ACEX 1K device, availability should be secured from existing distributor stock. This page combines distributor pricing, speed-grade alternatives, and practical design guidance that is not typically assembled in a single datasheet listing, allowing engineers to evaluate EP1K50FC256-3N and its drop-in family variants more quickly.

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EP1K50FC484-1 - 50K Gate ACEX-1K FPGA, 484-FBGA | Intel / Altera
EP1K50FC484-1

EP1K50FC484-1 - 50K Gate ACEX-1K FPGA, 484-FBGA | Intel / Altera

The Intel (formerly Altera) EP1K50FC484-1 is a member of the ACEX-1K family of 2.5V SRAM-based Field Programmable Gate Arrays (FPGAs) housed in a 484-ball FineLine BGA package. The device integrates 50,000 typical gates with 2,880 logic elements (LEs), 40,960 bits of embedded array memory (EAB RAM), and 360 Logic Array Blocks (LABs), supporting up to 249 user I/O pins. Fabricated on a 0.22 um CMOS process, the ACEX-1K family delivers system-on-a-programmable-chip (SOPC) integration with enhanced embedded array blocks optimized for efficient memory and specialized logic functions such as dual-port RAM, ROM, and first-in-first-out (FIFO) buffers. A Field Programmable Gate Array (FPGA) is a type of integrated circuit that can be reconfigured by the customer after manufacturing to implement arbitrary digital logic. FPGAs sit within the taxonomy: programmable logic -> logic IC -> integrated circuit -> semiconductor. The ACEX-1K family in particular targets cost-sensitive, high-volume applications requiring medium-density logic with on-chip memory. Key features of the EP1K50FC484-1 include a commercial operating temperature range of 0C to 70C, support for multiple I/O standards (LVTTL, LVCMOS, PCI, and GTL+), an internal nominal supply of 2.5V (2.375V min / 2.625V max), and 4 dedicated clock input pins plus 4 dedicated clock output pins. The -1 speed grade is the slowest in the ACEX-1K family and is typically used where cost dominates over raw timing margin. Technically, the EP1K50FC484-1 uses a continuous, SRAM-based interconnect architecture with embedded array blocks (EABs) that are essentially dual-port RAM blocks of 4,096 bits each. Each EAB can be configured as memory of varying widths (x1, x2, x4, x8, x16, x32) or as logic implementing megafunctions. Configuration is loaded via a serial or parallel PROM (EPC1, EPC16) or via JTAG. Typical applications include glue logic replacement, interface bridging (PCI, ISA, UART), moderate-density DSP preprocessing, communications backplane controllers, and industrial machine control. The wide I/O count and embedded memory make the device useful in designs that need modest compute plus fast deterministic I/O. When designing with this part, ensure proper decoupling (0.1 uF + 10 uF per VCCINT/VCCIO plane) and a clean clock distribution network. Note that ACEX-1K devices are mature and supply is increasingly limited - cross-reference with newer Cyclone series (e.g., EP1C3 / EP1C6) when designing new boards. This page consolidates distributor pricing, parametric drop-in alternatives from the same ACEX-1K family, and practical design notes that go beyond what the original datasheet alone provides.

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EP1K50FC484-1N - 50K-Gate ACEX-1K FPGA 250MHz 484-BGA | Intel
EP1K50FC484-1N

EP1K50FC484-1N - 50K-Gate ACEX-1K FPGA 250MHz 484-BGA | Intel

The Intel (formerly Altera) EP1K50FC484-1N is a member of the ACEX-1K family of Field-Programmable Gate Arrays (FPGAs), delivering approximately 50,000 system gates, 2,880 logic elements, and 40,960 bits of embedded SRAM in a 484-ball FineLine BGA (FBGA) package. It is built on a 0.22 µm CMOS process, operates from a 2.5 V core supply, and supports 249 programmable I/O pins with up to 250 MHz internal performance. The "-1N" suffix indicates the commercial speed grade and lead-free / RoHS-compliant package option. An FPGA (Field-Programmable Gate Array) is a programmable logic device that sits between a microcontroller and a custom ASIC in the semiconductor hierarchy: ASIC → FPGA → microcontroller → general-purpose processor. FPGAs integrate configurable logic blocks (LEs), programmable interconnect, and on-chip memory so engineers can implement arbitrary digital logic, DSP pipelines, glue logic, and bus interfaces without a custom mask set. The ACEX-1K family was the first Altera family to embed dedicated array blocks (EABs) for memory or arithmetic functions, and it targets glue-logic, bus-bridging, and low-to-mid volume custom logic designs. Key features of the EP1K50FC484-1N include 360 Logic Array Blocks (LABs), 12 Embedded Array Blocks (EABs) providing 40,960 RAM bits, multi-standard I/O support (LVTTL, LVCMOS, PCI, GTL+, SSTL-2), in-system programmability via the JTAG-compliant IEEE Std. 1149.1 interface, and 4 dedicated clock inputs with up to 6 global clock networks. The 484-FBGA package exposes 249 user I/O, giving designers ample headroom for parallel buses and memory interfaces while fitting into a surface-mount footprint. From an architectural standpoint, each Logic Element in ACEX-1K contains a 4-input look-up table (LUT), a programmable register, and a carry chain for arithmetic. The EABs can be configured as 4,096-bit RAM or ROM blocks, allowing efficient implementation of FIFOs, lookup tables, and small algorithmic coefficient stores. The device is configured using SRAM-based configuration cells, so it loads its bitstream on every power-up from a serial PROM, JTAG, or controller. Typical applications include communications infrastructure glue logic, peripheral-bus bridging (e.g., PCI to local bus), industrial control and instrumentation, low-volume custom DSP pre/post-processing, and test-and-measurement backplanes. The wide I/O count also suits multi-channel data-acquisition front ends and protocol-conversion cards where multiple asynchronous interfaces must be absorbed in a single device. When designing with the EP1K50FC484-1N, plan for the 2.5 V VCCINT core rail (separate from VCCIO for I/O banks), provide a configuration source (serial configuration PROM or JTAG), and respect the FBGA-484 routing rules (escape routing on multiple layers, microvia stack if possible). The device is commercial temperature grade (0 °C to +70 °C); industrial or military temperature grades carry the "I" or "MIL" speed-grade suffix. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes that complement, rather than duplicate, the manufacturer datasheet.

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EP1K50FC484-2 - 50K Gate ACEX-1K FPGA, 484-BGA | Altera
EP1K50FC484-2

EP1K50FC484-2 - 50K Gate ACEX-1K FPGA, 484-BGA | Altera

The Altera (now Intel) EP1K50FC484-2 is a member of the ACEX-1K family of Field Programmable Gate Arrays (FPGAs), delivering 50,000 typical gates, 2,880 logic elements (cells), and 49,152 RAM bits in a 484-pin FineLine BGA package. Operating from a 2.5 V core supply with commercial-grade temperature support, this device combines a logic-array fabric with embedded array blocks (EABs) optimized for implementing megafunctions such as efficient memory and specialized logic functions including dual-port RAM, ROM, and FIFO buffers. An FPGA (Field Programmable Gate Array) is a type of integrated circuit containing an array of programmable logic blocks, configurable interconnects, and I/O cells that can be reconfigured by the designer after manufacture. FPGAs occupy a position in the semiconductor hierarchy between complex programmable logic devices (CPLDs) and application-specific integrated circuits (ASICs), offering higher logic density than CPLDs and lower non-recurring engineering cost than ASICs. The ACEX-1K family is an older Altera architecture that pioneered embedded memory blocks (EABs) for system-on-a-programmable-chip (SOPC) integration. Key features of the EP1K50FC484-2 include 360 logic array blocks (LABs), 249 user I/Os, 12 embedded array blocks (EABs), and a maximum internal operating frequency of up to 200 MHz. The device supports in-system programmability via the IEEE 1149.1 (JTAG) interface and configuration via the passive serial (PS), passive parallel synchronous (PPS), passive parallel asynchronous (PPA), and active serial (AS) modes. The -2 speed grade places this part in the mid-range of the ACEX-1K speed bins. Architecturally, the EP1K50FC484-2 uses a CMOS SRAM-based look-up table (LUT) fabric with 4-input LUTs feeding adjacent LAB interconnect, combined with EABs that provide 4 Kbits of dual-port RAM each (true + false clocks, separate read/write addresses). Total embedded memory reaches 49,152 bits (12 EABs × 4 Kbits), configurable as RAM, ROM, or content-addressable memory. The LUT-based fabric plus EAB architecture was Altera's response to Xilinx's Virtex-era distributed + block RAM approach. Typical applications include telecommunications glue logic, industrial control state machines, data-path transformation pipelines, low-cost ASIC prototyping, and embedded controller co-processing. The dual-port RAM and FIFO capability make the part well suited to digital signal processing front-ends, protocol conversion, and wide-data-path manipulation in communications equipment. When designing with this device, note that ACEX-1K is a legacy 2.5 V core family manufactured on a 0.18 µm (or older) process. The 484-BGA package requires careful PCB layout for fan-out, and configuration requires an external configuration PROM (such as the EPC2 or EPC16) for active serial modes. Engineers targeting new designs should evaluate the Cyclone or MAX families instead, as ACEX-1K is no longer recommended for new projects. This page synthesizes distributor availability, exact drop-in alternative MPNs from the same ACEX-1K family, and practical design notes that are not duplicated on the manufacturer datasheet alone.

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EP1K50FC484-2N - 50K-Gate ACEX 1K FPGA, 249 I/O, 484-BGA | Intel
EP1K50FC484-2N

EP1K50FC484-2N - 50K-Gate ACEX 1K FPGA, 249 I/O, 484-BGA | Intel

The Intel (formerly Altera) EP1K50FC484-2N is a 50,000-gate ACEX 1K family FPGA housed in a 484-ball FineLine BGA package, fabricated on a 0.22 µm process and operating from a 2.5 V core supply. The device integrates 2,880 logic elements (cells), 360 logic array blocks (LABs), and 40,960 bits of embedded dual-port RAM, with 249 user I/O pins and a system speed grade of -2 (commercial). Per the ACEX 1K Device Family datasheet, this part targets low-cost system-on-a-programmable-chip (SOPC) integration by combining a programmable logic fabric, embedded array blocks for megafunctions (FIFOs, RAM, multipliers), and a four-element embedded array for memory and specialized logic functions. What is an FPGA? A Field-Programmable Gate Array (FPGA) is a semiconductor IC containing an array of configurable logic blocks (LBs), programmable interconnect, and I/O cells that engineers can program after manufacture to implement arbitrary digital circuits. FPGAs sit hierarchically between CPLDs (smaller, non-volatile, lower density) and ASICs (custom-fabricated, highest density), and are the workhorse of digital prototyping, glue logic, signal processing pre/post-processing, and small-to-medium volume custom compute. ACEX 1K specifically belongs to the 2.5 V low-cost SRAM-based FPGA tier, optimized for high-volume consumer and communications glue logic rather than highest-performance signal processing. Key differentiating features include the on-chip dual-port RAM block (EAB-equivalent) of 40,960 bits, hot-swappable 5 V-tolerant I/O buffers (when configured as inputs), in-system programmability via JTAG, and a robust 249 I/O count in a fine-pitch BGA. The device supports multiple I/O standards (LVTTL, LVCMOS, PCI) and offers per-pin tri-state control, making it suitable as a bridge between disparate logic families on a single board. Typical applications for EP1K50FC484-2N include telecom line-card glue logic, industrial control boards requiring 5 V I/O compatibility, display controllers, custom peripheral interfaces for embedded CPUs, and ASIC prototyping. With 50K gates and 360 LABs, designers typically fit 8- to 16-bit microcontrollers, custom bus bridges, or modest DSP pre-processing on a single device. When designing with this part, verify 2.5 V core regulation tolerance (older ACEX 1K parts require precise 2.5 V, not 3.3 V), and confirm the BGA rework process capability. ACEX 1K is mature and now classified as EOL/Last Time Buy by Intel, so designers targeting new designs should evaluate Cyclone or MAX families unless legacy support is required. This page synthesizes distributor availability, drop-in ACEX 1K alternative MPNs, parametric comparison data, and legacy-design practical guidance not consolidated in the original datasheet.

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EP1K50FC484-3 - ACEX-1K 50K Gates FPGA, 484-FBGA | Intel / Altera
EP1K50FC484-3

EP1K50FC484-3 - ACEX-1K 50K Gates FPGA, 484-FBGA | Intel / Altera

The Intel / Altera (formerly Altera) EP1K50FC484-3 is a member of the ACEX-1K family of Field Programmable Gate Arrays (FPGAs), delivering 50,000 system gates with 2,880 logic elements and 40,960 bits of embedded SRAM in a 484-ball FineLine BGA package. The device is fabricated on a 0.22 µm CMOS process with five metal layers and operates from a 2.5 V core supply, exposing 249 user I/Os. The speed grade "-3" denotes the slowest commercial timing in the ACEX-1K lineup, making this part attractive for cost-sensitive designs that do not require maximum FMAX. An FPGA (Field Programmable Gate Array) is a programmable logic device that integrates configurable logic blocks (LCs), programmable interconnect, and dedicated memory into a single silicon die. The ACEX-1K family targets low-cost system-on-a-programmable-chip (SOPC) integration, providing an enhanced embedded array structure that is optimized for implementing megafunctions such as efficient memory blocks, specialized DSP-like logic, and dual-port RAM. Within the broader taxonomy, an FPGA sits between programmable logic devices (PLDs/CPLDs) and mask-programmed ASICs, offering higher density than CPLDs and faster time-to-market than ASICs. Key features include 360 Logic Array Blocks (LABs) grouped into a multiplexed network, 249 user I/Os, embedded memory of 40 Kbits (EAB-based), in-system programmability via SRAM configuration, and JTAG-based IEEE 1149.1 boundary-scan test support. The device is rated for a maximum internal clock frequency of 166.67 MHz. SRAM-based configuration means the design bitstream must be loaded at every power-up from an external PROM or microcontroller, which is a defining architectural trade-off versus antifuse or flash-based FPGAs. The EP1K50FC484-3 is built on a look-up-table (LUT) architecture with 4-input LEs and a continuous routing fabric, paired with Embedded Array Blocks (EABs) for true dual-port RAM, ROM, and multiplier functions. Five metal layers reduce signal skew across the 484-ball BGA package, and a -3 speed grade indicates the slowest grade in this family, with the -1 and -2 grades offering progressively faster timing. Designers targeting higher FMAX should consider EP1K50FC484-2N or EP1K50FC484-1 from the same family. Typical applications include glue-logic replacement, bus-bridging interfaces (PCI, ISA), prototyping of ASIC designs, industrial control logic, low-density DSP preprocessing, and communications glue functions. Designers moving to a modern footprint should evaluate Cyclone-series equivalents from the Cyclone, Cyclone II, or Cyclone III families, none of which retain the 484-FBGA pinout. When designing with this device, remember that ACEX-1K devices are listed as obsolete by Altera/Intel, and Long-Term Supply (LTS) availability is limited. Plan for last-time-buy strategies and validate second-source options within the ACEX-1K family (EP1K50FC484-2N, EP1K50FC484-1) before committing to new designs. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical end-of-life design notes not aggregated on the manufacturer product page.

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EP1K50FC484-3N - 50K Gates ACEX-1K FPGA 484-BBGA | Intel
EP1K50FC484-3N

EP1K50FC484-3N - 50K Gates ACEX-1K FPGA 484-BBGA | Intel

The Intel (formerly Altera) EP1K50FC484-3N is a member of the ACEX-1K family of Field Programmable Gate Arrays featuring 50,000 typical gates, 2,880 logic cells, and 40,960 bits of embedded RAM, housed in a 484-ball FineLine BGA package. The device implements 249 maximum user I/O pins and is fabricated on a 0.22 um CMOS process with a 2.5 V core supply, supporting a maximum internal operating frequency around 166.67 MHz. It is offered in the commercial -3 speed grade and is intended for cost-sensitive, low-density glue-logic and bus-interface applications. What is an FPGA? A Field Programmable Gate Array (FPGA) is a class of programmable logic device that allows designers to configure arbitrary digital logic after PCB fabrication, sitting in the hierarchy between simple PLDs (CPLD) and fixed-function ASICs. ACEX-1K was Altera's first family to embed distributed dual-port SRAM blocks alongside the logic fabric, enabling single-chip system-on-a-programmable-chip (SOPC) designs that combine glue logic, FIFOs, and small processor interfaces without external memory. Key features include 360 Logic Array Blocks (LABs), embedded array blocks (EABs) for efficient memory and specialized logic, in-system programmability via JTAG, and multi-voltage I/O support (1.8 V, 2.5 V, 3.3 V) on the same die. The device is supported by the Altera Quartus II MAX+PLUS II design software and is fully pin-compatible with other ACEX-1K 484-BGA speed grade variants, allowing drop-in PCB reuse when migrating between speed grades or density points within the same package. Architecturally, ACEX-1K uses a continuous, sea-of-LABs routing fabric with dedicated carry chains for fast arithmetic and a MegaLAB structure that groups multiple LABs with a shared EAB. This gives the EP1K50FC484-3N a balanced logic-to-memory ratio for bus bridges, peripheral controllers, and telecom glue logic. Typical applications span industrial control boards, telecommunications line cards, low-cost video/display controllers, glue logic between microprocessors and DSPs, and legacy system upgrades. Its 484-BGA footprint suits medium-complexity boards where higher-density Cyclone or Stratix devices would be overkill. When designing with this part, note that ACEX-1K is a mature, end-of-life family - verify last-time-buy status before committing to new production. The 484-BBGA package requires careful PCB stack-up and via-in-pad or via-array escape routing; refer to the Altera ACEX-1K Device Family datasheet for recommended decoupling and JTAG chain guidance. This page synthesizes distributor pricing, drop-in ACEX-1K family alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers qualify the EP1K50FC484-3N for both new designs and legacy board refresh.

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EP1K50FI256-2 - ACEX-1K 50K Gates 2880 Cells FPGA | Intel
EP1K50FI256-2

EP1K50FI256-2 - ACEX-1K 50K Gates 2880 Cells FPGA | Intel

The Intel (formerly Altera) EP1K50FI256-2 is a member of the ACEX-1K family of Field Programmable Gate Arrays (FPGAs), featuring 50,000 typical gates, 2,880 logic elements (cells), and 186 user I/O pins housed in a 256-ball FineLine BGA (FBGA) package. It is fabricated on a 0.22 µm SRAM process technology and operates from a 2.5 V core supply, with a maximum internal clock frequency of 200 MHz. An FPGA (Field Programmable Gate Array) is a programmable logic device whose logic functions, interconnect routing, and I/O behavior are defined after manufacturing by loading a configuration bitstream into on-chip SRAM. FPGAs sit within the broader taxonomy of programmable logic devices (PLDs) -> complex programmable logic devices (CPLDs) -> FPGAs -> SRAM-based LUT FPGAs, and they serve as the high-density tier used to implement glue logic, custom datapaths, and complete system-on-chip prototypes. ACEX-1K is the entry-level, low-cost SOPC (System-on-a-Programmable-Chip) tier of the Altera/Intel FPGA portfolio, integrating embedded array blocks (EABs) for efficient memory and specialized megafunctions alongside a 4-input LUT logic fabric. The EP1K50FI256-2 supports in-system programmability through an SRAM configuration bitstream loaded via the IEEE 1149.1 (JTAG) interface or an external configuration PROM. The device contains 360 Logic Array Blocks (LABs) and 12 Embedded Array Blocks (EABs) of 4,096 bits each for distributed dual-port RAM or ROM. It supports multiple I/O standards including LVTTL, LVCMOS, PCI, and SSTL-2/3, with per-pin user-configurable drive strength and slew-rate control. Typical applications for the EP1K50FI256-2 include glue logic consolidation on legacy motherboards, industrial control and factory automation controllers, telecommunications interface cards, prototyping and education platforms, and embedded DSP pre/post-processing. The 256-ball FBGA package provides a compact footprint while maintaining access to 186 general-purpose I/O pins, which is sufficient for many parallel bus and peripheral bridging designs. Designers should note that the EP1K50FI256-2 is built on a 5 V-tolerant-tolerant 0.22 µm process; power sequencing and decoupling must follow the ACEX-1K handbook recommendations. Configuration data is volatile - the device must be reconfigured on every power-up from an external PROM or controller. This page synthesizes distributor pricing, same-family drop-in alternatives such as EP1K50FC256 variants, lifecycle status, and practical design notes that go beyond a raw datasheet dump.

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EP1K50FI256-2AA - ACEX 1K FPGA, 186 I/O | Intel
EP1K50FI256-2AA

EP1K50FI256-2AA - ACEX 1K FPGA, 186 I/O | Intel

The Intel EP1K50FI256-2AA is an ACEX 1K field-programmable gate array (FPGA) with 2880 logic elements, 360 LABs/CLBs, 40960 RAM bits, 186 user I/O pins, and 199000 system gates, supplied in a 256-ball fine-pitch BGA package. The device operates from a 2.5 V core supply in the 2.375 V to 2.625 V range and is rated for -40C to +85C operation. An FPGA is a reconfigurable integrated circuit whose logic functionality is defined after manufacturing by loading a configuration bitstream. In a system hierarchy, the EP1K50FI256-2AA sits between simple programmable logic devices and complex SoC-class FPGAs: it is a field-programmable gate array within the programmable logic device category, and ultimately an integrated circuit for embedded digital systems. The ACEX 1K family was designed around LED, communications, and control applications that need moderate logic density, wide I/O, and low-cost board integration. Key differentiators for the EP1K50FI256-2AA include its 186 user I/O pins, 360 LABs/CLBs, 40960 bits of embedded RAM, and 199000 system gates. The dedicated embedded array supports memory and specialized logic functions, while the logic array implements general-purpose gates and state machines. With a 2.5 V core supply and surface-mount 256-ball BGA package, the device suits space-constrained boards that need high pin count without a large package footprint. At the architectural level, this FPGA is an SRAM-based programmable device built in a 0.22 um CMOS process with a 2.5 V core. The datasheets.com summary reports a maximum internal frequency around 200 MHz for the EP1K50 family. The -2 speed grade in the ordering code indicates the second speed bin. In practice, achievable clock rates depend on placement, routing, and the selected logic functions, so timing should always be constrained and verified in the ACEX 1K software flow. Typical applications for the EP1K50FI256-2AA include industrial control and automation interfaces, telecom line-card bridging, video/imaging frame buffers, and legacy equipment repair. Because the I/O voltage architecture of ACEX 1K supports multiple standards and the FPGA provides 186 pins, it can connect to microprocessors, ADCs, DACs, memory devices, and bus transceivers in the same 2.5 V-era system. One important design consideration is that this device is SRAM-based and must be configured at every power-up from an external configuration device, EPC memory, or JTAG download. The part is classified as obsolete by Intel/Altera, so new designs should keep a verified configuration image and plan a long-term migration path to a current FPGA family when production continuity is required. This page combines distributor cross-reference listings, known package-compatible EP1K50 family variants, and practical legacy-system guidance, providing sourcing and design information that a bare datasheet does not include.

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EP1K50FI256-2N - 50K-Gate ACEX-1K FPGA 256-BGA | Intel / Altera
EP1K50FI256-2N

EP1K50FI256-2N - 50K-Gate ACEX-1K FPGA 256-BGA | Intel / Altera

The Intel (formerly Altera) EP1K50FI256-2N is a 50,000-gate ACEX-1K family Field Programmable Gate Array (FPGA) with 2,880 logic elements, 360 LABs/CLBs, and 40,960 bits of embedded RAM, housed in a 256-ball FineLine BGA package. It operates from a 2.5 V core supply (2.375 V to 2.625 V), supports up to 186 user I/O pins, and is fabricated on a 0.22 µm CMOS process with a maximum internal frequency of 200 MHz. An FPGA (Field Programmable Gate Array) is a semiconductor device built from an array of configurable logic blocks (CLBs/LABs), programmable interconnect, and embedded memory blocks (EABs/BRAMs) that the designer can program after manufacture. FPGAs sit in the broader hierarchy of programmable logic devices (PLDs) -> FPGAs -> parallel/serial programmable accelerators. ACEX-1K specifically pairs look-up-table (LUT)-based logic with Embedded Array Blocks (EABs), allowing each EAB to implement RAM, ROM, dual-port RAM, or FIFO without consuming general LUT resources. Key differentiating features include the EAB-based memory architecture (dual-port RAM and FIFO at up to 40,960 bits), the 360 LABs delivering 2,880 logic elements (10 LEs per LAB), and SameFrame pin-out migration across the 256-pin FineLine BGA family. The die operates from a 2.5 V core supply with separate VCCIO bank voltages, supporting mixed-voltage I/O (LVTTL, LVCMOS, PCI, SSTL). Per the ACEX-1K datasheet family, the device is built on a 0.22 µm SRAM-based process and supports in-system programmability via the IEEE 1149.1 JTAG interface and the Altera EPC configuration devices. Architecturally, each LAB contains 10 LEs, each LE holding a 4-input LUT, a programmable register, a carry chain for arithmetic, and a register chain. The EABs are 4 Kbit blocks (40,960 total / 4 Kbit = 10 EABs typical for this density) usable as single- or dual-port RAM, ROM, or FIFO. The device uses SRAM configuration cells, so it must be configured at every power-up from a serial or parallel configuration PROM. Typical applications include glue logic replacement, interface bridging (PCI to local bus, UART expansion), digital signal processing front-ends, prototype ASIC validation, and industrial control boards where moderate logic density and embedded memory are needed without the cost of high-density FPGAs. When designing with this device, ensure the configuration scheme (PS, AS, JTAG) matches the chosen EPC configuration PROM. The 256-ball FineLine BGA is a SameFrame package - designs targeting the EP1K50 family can migrate to EP1K30 (smaller) or EP1K100 (larger) parts with no PCB rework. Watch thermal dissipation: even at modest toggle rates the 0.22 µm process can dissipate 1-2 W in still air; use a minimum 4-layer PCB with an internal ground plane. This page synthesizes distributor pricing, drop-in alternatives within the ACEX-1K family, and SameFrame PCB-layout guidance not found in the bare datasheet, making it a single source for sourcing, replacement, and design-in decisions.

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