FPGA & CPLD
Produits (6666)
EP1K100QC208-1GZ - ACEX-1K FPGA 100K Gates 208-PQFP | Intel
The Intel EP1K100QC208-1GZ is a member of the ACEX-1K family of FPGAs that integrates 100,000 typical gates and 4,992 logic elements (LEs) into a 208-pin Plastic Quad Flat Pack (PQFP/BFQFP) measuring 28x28 mm. Operating from a 2.5 V core supply (2.375 V to 2.625 V), the device delivers up to 250 MHz system performance and exposes 147 user I/O pins, with embedded array blocks (EABs) providing 49,152 bits of dual-port RAM for efficient on-chip memory implementation. An FPGA (Field Programmable Gate Array) is a semiconductor device built around an array of configurable logic blocks (CLBs), programmable interconnect, and I/O cells, allowing designers to implement arbitrary digital logic after PCB assembly. FPGAs sit hierarchically above fixed-function ASICs and below microcontrollers in design flexibility, and are favored for prototyping, low-volume production, and DSP/data-path acceleration. The ACEX-1K family specifically introduced the embedded array block, allowing megafunctions such as efficient memory and specialized logic functions to be implemented alongside general-purpose LEs. Key features of the EP1K100QC208-1GZ include the SameFrame pin migration option with 256-pin FineLine BGA variants, IEEE 1149.1 (JTAG) boundary-scan support, in-system programmability via the MAX+PLUS II or Quartus development systems, and a robust SRAM-based configuration cell that supports fast reconfiguration. The quad flat pack package offers a JEDEC-standard 3.49 mm height profile and a 0.5 mm lead pitch suitable for production through-hole-style surface-mount assembly lines and breadboard-friendly socket adapters during prototyping. The device architecture employs a Look-Up Table (LUT)-based LE fabric with EABs of 4,096 bits each, providing deterministic logic delays and predictable timing closure. The 2.5 V core is paired with multi-standard I/O that supports LVTTL, LVCMOS, SSTL, and PCI signaling through dedicated I/O banks, and the silicon is offered in both commercial and industrial temperature grades with device speed grades of -1 (fastest), -2, and -3. The 'GZ' suffix in the part number denotes a lead-free, RoHS-compliant package. Typical applications include glue logic replacement, bridge and protocol conversion in legacy systems, low-volume telecom line cards, industrial control and instrumentation front-ends, and educational platforms. Its 49,152 bits of embedded RAM and 147 user I/Os are well matched to small DSP filter chains, UART/SPI expansion, and custom state-machine controllers. When designing with this device, ensure that the MAX+PLUS II or Quartus toolchain version supports the ACEX-1K family and that a configuration EPROM (EPC) or JTAG programmer is available. Since the EP1K100 is a mature EOL device, verify long-term availability before new design starts. This page synthesizes distributor pricing, drop-in same-package alternatives from web data, and practical design notes not found in the manufacturer datasheet, giving the engineer a single source for evaluation, comparison, and replacement decisions.
EP1K100QC208-1N - ACEX 1K FPGA 4992 Cells | Altera
The Altera EP1K100QC208-1N is an ACEX-1K family Field Programmable Gate Array (FPGA) fabricated in 0.22 um CMOS technology, providing 100,000 typical gates, 4,992 logic elements, 624 LABs, 49,152 RAM bits and 147 user I/O pins in a 208-pin PQFP package. Verified distributor parametric data lists a 2.5 V core supply and a 333.33 MHz maximum frequency figure for this -1 speed grade. A Field Programmable Gate Array is an integrated circuit whose logic fabric can be configured after manufacturing using HDL design flows. FPGAs sit between fixed-function ASICs and general-purpose processors in the digital component hierarchy: FPGA -> programmable logic device -> integrated circuit -> semiconductor. The ACEX 1K family was Altera's low-cost programmable logic platform, combining an embedded array for memory and specialized functions with configurable logic blocks for user logic. Key EP1K100QC208-1N specifications include 4,992 logic elements, 624 LABs, 147 I/Os, 49,152 RAM bits, a 100K-gate equivalent density, 2.5 V core supply, CMOS 0.22 um process technology, and the 208-pin PQFP/BFQFP package. The N suffix indicates the lead-free variant intended for RoHS-conscious legacy assembly flows. The architecture uses look-up-table-based logic elements and embedded array blocks for memory-intensive functions. With 147 I/O pins, this FPGA can support wide parallel buses, memory interfaces and multiple serial peripherals. The 333.33 MHz parametric maximum makes it suitable for timing-sensitive synchronous systems, although designers should always validate performance with the ACEX 1K timing model. Typical applications include sustaining legacy industrial controllers, telecom protocol bridging, ASIC prototyping, university FPGA teaching labs and service replacement for medical or instrumentation backplanes produced in the early 2000s. The -1N speed grade provides maximum timing margin among the common -1, -2 and -3 ACEX speed bins. When designing with this device, plan for a separate 2.5 V core supply and verify all I/O bank voltage levels. Intel/Altera community guidance indicates that modern FPGAs are not pin-compatible replacements, so legacy boards often require an adapter board or full redesign if moving to a newer family. This page synthesizes distributor availability, same-package ACEX alternatives, pricing estimates, and practical migration notes beyond what is printed in the manufacturer datasheet.
EP1K100QC208-2 - 100K Gate ACEX-1K FPGA, 208-PQFP | Altera
The Altera (Intel) EP1K100QC208-2 is a member of the ACEX-1K family of Field Programmable Gate Arrays (FPGAs), delivering 100,000 equivalent gates and 4,992 logic elements in a 208-pin Plastic Quad Flat Pack (PQFP) package. Built on a 2.5 V CMOS process with a maximum internal clock frequency of 250 MHz, this device integrates 49,152 bits of embedded array memory organized for dual-port operation, alongside 147 user I/O pins that support a broad range of single-ended I/O standards. An FPGA (Field Programmable Gate Array) is a reprogrammable semiconductor device whose logic function is defined by a configuration bitstream loaded into on-chip SRAM. FPGAs sit at the top of the programmable-logic hierarchy, above CPLDs (Complex Programmable Logic Devices) and SPLDs (Simple Programmable Logic Devices). The ACEX-1K family is positioned between low-density CPLDs and high-density FPGAs such as Stratix and Cyclone, making it suitable for mid-range glue logic, bus bridging, and DSP pre-processing tasks. The EP1K100QC208-2 features 624 Logic Array Blocks (LABs), each containing 8 Logic Elements (LEs), giving the device a total of 4,992 LEs for combinational and sequential logic implementation. The embedded array provides efficient memory blocks for FIFO, dual-port RAM, and ROM functions without consuming external logic resources. The 147 user I/O pins are distributed across four I/O banks, each supporting 2.5 V LVTTL/LVCMOS signalling by default and configurable through the Quartus design tool. Typical applications include telecommunications line-card interfaces, industrial control and instrumentation, low-cost glue logic replacement, legacy system prototyping, and education. The PQFP-208 footprint and the mature 2.5 V core also make the part suitable for designs where drop-in compatibility with existing ACEX-1K boards is required. When designing with this device, engineers should note the PQFP-208 package requires careful PCB layout with respect to lead inductance and signal integrity, especially for clock and high-speed I/O nets. The 2.5 V core supply must be tightly regulated, and unused I/O pins should be configured as tri-stated inputs with weak pull-ups to reduce quiescent current. This page synthesises distributor pricing, drop-in ACEX-1K alternatives in the same PQFP-208 footprint, and practical design notes that are not aggregated on a single manufacturer datasheet page.
EP1K100QC208-2N - ACEX-1K FPGA 4992 LE, 147 IO | Altera
The Intel (Altera) EP1K100QC208-2N is an ACEX 1K family field-programmable gate array with 4,992 logic elements arranged in 624 LABs, 49,152 total RAM bits, and 147 user I/O pins, supplied in a 208-pin PQFP package. It operates from a 2.5V core supply, uses CMOS technology, and supports a 0C to 70C commercial temperature range. The -2 speed grade places it between the faster -1 and slower -3 variants in the same 208-pin footprint.\n\nAn FPGA is an integrated circuit whose logic fabric is configured after manufacturing to implement custom digital hardware. Unlike a fixed-function ASIC or microcontroller, an FPGA consists of programmable lookup tables, flip-flops, routing resources, and embedded memory blocks that together form arbitrary logic circuits. In the power-management and processing hierarchy, this product belongs to programmable logic devices, above simple CPLDs in complexity and below application-specific standard parts in unit-volume cost optimization. For designers needing deterministic, parallel digital logic without wafer fabrication, an FPGA provides a fast path between algorithm and hardware.\n\nKey features of the EP1K100QC208-2N include 4,992 logic elements per the verified family specification, 49,152 RAM bits for on-chip packet buffering and FIFO storage, 624 LABs for distributed control logic, and 147 user I/O pins in a 208-pin PQFP. The device uses a 2.5V core voltage, reducing dynamic power compared with 5V predecessors, while the -2 speed grade supports typical clock rates up to about 250 MHz as reported by listings for this part. Altera's ACEX 1K architecture includes an embedded array suitable for implementing memory and specialized logic functions.\n\nThe internal architecture combines logic array blocks with embedded array blocks for system-on-a-programmable-chip integration. This allows functions such as dual-port RAM, CAM, and DSP storage to reside on-chip, reducing board area and latency. The technology is CMOS 0.22um, and the part is classified as obsolete at end-of-life status in current distributor records. Because ACEX 1K uses SRAM-based configuration, an external boot source such as an EPC configuration device is required to load the bitstream after power-up.\n\nTypical applications include protocol bridging, industrial I/O control, image preprocessing, data acquisition in test instrumentation, and legacy product lifecycle replacement. The 147 I/O count is sufficient for 32/64-bit data paths plus handshaking, and the 49,152 RAM bits support small FIFOs and line buffers. For designs that need parallel throughput rather than sequential processing, the EP1K100QC208-2N can implement several bus converters or custom state machines in a single device.\n\nWhen designing with this component, remember that it is volatile and obsolete. Add an EPC2 or host-processor configuration path, maintain the 2.5V core rail with adequate bulk capacitance, and confirm current stock before committing to a large production run because no modern pin-compatible FPGA replacement exists. For new designs, select a current FPGA family instead of ACEX 1K.\n\nThis page synthesizes distributor pricing, drop-in speed-grade alternatives, architecture notes, and practical configuration guidance not repeated in raw datasheet snippets, giving engineers a compact cross-reference for maintaining legacy ACEX 1K systems.
EP1K100QC208-2NGZ - ACEX-1K 100K Gates FPGA, 147 I/O, 208-PQFP | Intel / Altera
The Intel / Altera EP1K100QC208-2NGZ is a member of the legacy ACEX-1K family of Field Programmable Gate Arrays (FPGAs), delivering 100,000 typical gates and 4,992 logic elements in a 208-pin Plastic Quad Flat Pack (208-BFQFP / 208-PQFP) surface-mount package. The device integrates 624 Logic Array Blocks (LABs) / Configurable Logic Blocks (CLBs), 49,152 bits of embedded SRAM, 147 user I/O pins, and operates from a 2.375V to 2.625V core supply with a commercial 0°C to 70°C temperature grade. What is an FPGA? A Field Programmable Gate Array is a semiconductor integrated circuit built around an array of configurable logic blocks (CLBs/LABs) connected by a programmable interconnect matrix. Unlike an ASIC (Application-Specific Integrated Circuit), an FPGA can be reconfigured in the field after manufacturing, making it ideal for prototyping, low-volume production, glue logic, and applications where design changes are expected. Within the FPGA taxonomy, the EP1K100 sits at the lower-density end: CPLD -> low-density FPGA -> ACEX-1K -> high-density FPGA -> SoC FPGA. Key specifications include a 2.5V core supply with 5V-tolerant I/O, in-system programmability via the Altera ByteBlaster or BitBlaster configuration interface, and JTAG boundary-scan support. The 'QC208' package code denotes the 208-pin Plastic QFP, the '-2' speed grade indicates the medium-speed tier, and the 'NGZ' suffix indicates the lead-free, RoHS-compliant commercial processing variant. The EP1K100QC208-2NGZ uses a SRAM-based Look-Up Table (LUT) architecture with four-input LUTs per logic element, and a hierarchical interconnect structure with FastTrack routing. The embedded array blocks (EABs) provide dedicated dual-port RAM resources that are widely used for FIFO buffers and small register files. Configuration data is loaded from an external serial or parallel PROM at power-up, since the SRAM cells are volatile. Typical applications include digital signal processing front-ends, industrial control glue logic, telecommunications line-card interfaces, PCI bridge controllers, and legacy embedded systems where the ACEX-1K has been a long-standing design-in. The 147 user I/Os are sufficient to drive multiple 16/32-bit buses and external memory interfaces in cost-sensitive designs. When designing with this device, ensure that configuration memory (typically an EPC2 or EPC16) is included in the BOM, since the EP1K100 has no on-chip non-volatile configuration storage. Decoupling must follow the ACEX-1K Hardware Reference Manual guidelines: 0.1µF + 10µF near each VCCINT pin group. Note that ACEX-1K is now in legacy/discontinued status, so designers should evaluate Cyclone or Cyclone II for new designs. This page synthesizes distributor stock levels, drop-in same-package ACEX-1K alternatives, and practical design notes not found in the original manufacturer datasheet.
EP1K100QC208-3 ACEX 1K FPGA 100K Gates | Altera
The Altera EP1K100QC208-3 is an ACEX 1K field-programmable gate array (FPGA) fabricated in 0.22 um CMOS with 4,992 logic elements, 49,152 bits of on-chip RAM, and 147 user I/O pins, housed in a 208-lead BFQFP/PQFP package. It is supplied for a 2.5 V core operating environment and is characterized for 200 MHz internal clock operation at the -3 speed grade. An FPGA is a semiconductor device containing programmable logic blocks and programmable interconnects that can implement arbitrary digital logic after manufacturing. In the ACEX 1K architecture, the configurable fabric is organized into logic array blocks (LABs), each containing smaller logic elements, plus embedded array blocks for memory. EP1K100QC208-3 sits in the hierarchy FPGA > programmable logic device > integrated circuit, and is specifically a 2.5 V SRAM-based programmable logic family used when a designer needs field reconfigurability without committing to a fixed ASIC. Key features are the 100K typical gate capacity, 624 LABs, 4,992 logic elements, 49,152 RAM bits, and 147 user I/O pins. The 208-terminal square BFQFP has gull-wing leads and is intended for conventional surface-mount assembly. The device is rated for the commercial temperature grade and uses a 0.22 um CMOS process. These parameters make it suitable for moderate-density logic integration and interface consolidation on boards that already use 2.5 V logic. The EP1K100QC208-3 is a loadable PLD, meaning it is configured from external memory or a programming host each time it powers up. Its internal architecture is designed for register-rich control logic, state machines, bus bridging, and small FIFO memories rather than high-speed DSP or embedded processor tasks. The 200 MHz internal speed indicates the practical performance ceiling of the -3 speed grade, while the 147 I/O pins are individually programmable and can be assigned to different board-level functions under the fitter. Typical applications include replacement logic in legacy telecommunications line cards, industrial automation I/O controllers, medical data acquisition systems, test and measurement trigger generation, and ASIC prototyping where a fixed gate-array design has not yet been completed. The 100K gate density and 49,152 RAM bits are well matched to block-level control logic and medium-width protocol state machines. One design consideration is that the device is SRAM-based; the configuration bitstream must be reloaded at every power-up, normally from an Altera EPC configuration device or through a download cable. The PCB must therefore include configuration-data connections, not just the FPGA core supply and user I/O net. This page provides distributor-level stock and pricing context, same-family drop-in replacement guidance, and practical board-level notes that are not repeated in the original manufacturer datasheet, helping engineers determine whether EP1K100QC208-3 fits an existing legacy BOM.
EP1K100QC208-3N - ACEX-1K FPGA 100K Gates | Altera
The Altera EP1K100QC208-3N is a 100K-gate ACEX-1K field-programmable gate array (FPGA) containing 4,992 logic elements, 624 LABs, 49,152 embedded RAM bits, and 147 user I/Os, supplied in a 208-pin BFQFP (plastic quad flat pack) package with a 2.5V core and a 200MHz internal clock rating. An FPGA is a semiconductor device whose logic fabric and routing can be reprogrammed in-system to implement arbitrary digital functions. ACEX-1K sits between simple CPLDs and dense high-end FPGAs: it provides SRAM-based look-up table logic with embedded array blocks (EABs) for on-chip memory, making it useful for protocol bridging, video timing, and custom peripheral controllers. In the device hierarchy it belongs to programmable logic devices (PLDs), specifically SRAM-based FPGAs, and the package family is plastic quad flat pack (PQFP/BFQFP) in a surface-mount form. Key features include 4,992 logic elements arranged in 624 logic array blocks, 49,152 RAM bits usable as FIFOs or dual-port RAM, 147 user I/O pins that can connect to 2.5V/3.3V logic systems, built-in JTAG boundary-scan test circuitry compliant with IEEE Std. 1149.1-1990, and the -3 speed grade rated for a 200MHz internal clock. The device uses a 2.5V CMOS core with a low-power SRAM-based configuration cell. The ACEX-1K architecture combines look-up-table logic with dedicated carry chains for arithmetic and embedded array blocks for efficient memory. This structure allows compact implementations of counters, state machines, small processors, and bus interfaces. The 208-pin BFQFP provides 147 accessible I/O pins, with the remaining pins allocated to power, ground, configuration, and JTAG functions. Its square gull-wing package can be assembled on standard PCB processes without a BGA socket or interposer. Typical applications include communications line cards, industrial control bridging, scan-rate conversion, display timing controllers, and glue-logic replacement in legacy digital systems. Because the 100K typical gate count and 49,152 bits of RAM are large for its era but moderate today, engineers often use the EP1K100QC208-3N to prototype digital logic before migrating to a current FPGA, or to patch an existing ACEX-1K board without changing the PCB. One important design consideration is decoupling and I/O voltage. Core and I/O supplies should be filtered with 0.1uF ceramic capacitors, and the 2.5V core must reach all power pins with a low-impedance plane. If configuration data is stored in an external EPROM, the EPC2/EPC16 configuration device must be selected for ACEX-1K compatibility. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet. It enables engineers to compare EP1K100QC208-3N with higher speed grades, verify package compatibility, and plan a trustworthy upgrade path for existing ACEX-1K hardware.
EP1K100QI208-02 - 100K Gate ACEX-1K FPGA, 208-PQFP | Altera
The Altera EP1K100QI208-02 is a member of the ACEX-1K family of Field Programmable Gate Arrays (FPGAs) delivering 100,000 system gates, 4,992 logic elements, and 49,152 RAM bits in a 208-pin Plastic Quad Flat Pack (PQFP/BFQFP) package. Built on a 0.22 µm SRAM process and operating from a 2.5 V core supply, it supports up to 147 user I/O pins and a maximum toggle frequency of 250 MHz. The "-02" speed grade is the slowest commercial bin in this family and is appropriate for cost-sensitive, non-timing-critical designs. An FPGA (Field Programmable Gate Array) is a type of programmable logic device (PLD) that combines an array of configurable logic blocks (LABs), embedded memory, and programmable interconnect into a single semiconductor IC. FPGAs belong to the broader hierarchy: programmable logic device -> field programmable gate array -> SRAM-based FPGA -> ACEX-1K family. Unlike ASICs, FPGAs are reprogrammable in-system, which makes them ideal for prototyping, low-volume production, and designs where hardware requirements evolve over time. The EP1K100QI208-02 provides 624 Logic Array Blocks (LABs), each containing 8 Logic Elements (LEs) for a total of 4,992 LEs. Embedded array blocks (EABs) deliver up to 24 Kbits of dual-port RAM per EAB, configurable as RAM, ROM, or FIFO. The device supports in-system configuration via serial or parallel configuration devices, JTAG boundary-scan testing (IEEE 1149.1), and MultiVolt I/O supporting 2.5 V, 3.3 V, and 5 V interfacing, eliminating the need for external level translators in mixed-voltage systems. Architecturally, the ACEX-1K family was the industry's first FPGA to embed dedicated dual-port RAM blocks (EABs), enabling efficient memory-intensive functions such as FIFOs, look-up tables, and DSP-style filtering without consuming logic resources. The 0.22 µm process combined with 2.5 V core reduced power consumption relative to 5 V FPGAs of the era, while the high I/O count (147 user I/Os) makes the device suitable for bus-intensive glue logic, peripheral bridging, and legacy industrial control applications. Typical applications include telecommunications line-card interface glue logic, industrial machine control and instrumentation, ASIC prototyping, peripheral bus bridges (PCI-to-ISA, UART muxing), low-cost digital signal processing front-ends, and embedded control logic. The 208-pin PQFP package is through-hole-friendly and easy to hand-prototype, though it occupies significant PCB area compared to later BGA packages. The wide MultiVolt I/O range also makes the part common in mixed 3.3 V/5 V systems. When designing with the EP1K100QI208-02, note that the "-02" speed grade has the slowest timing margins - it is suitable for designs clocked at 100 MHz or below, but applications requiring 200 MHz+ should select the "-1" speed grade. ACEX-1K devices are now in their end-of-life (EOL) era; for new designs, current Altera/Intel families such as Cyclone IV, MAX 10, or Cyclone V are recommended replacements. This page synthesizes distributor stock and pricing data, ACEX-1K family drop-in alternatives, and practical design notes that are not consolidated in the manufacturer datasheet alone.
EP1K100QI208-2 - ACEX-1K 100K Gates FPGA, 208-PQFP | Intel / Altera
The Intel / Altera EP1K100QI208-2 is a member of the ACEX-1K family of Field Programmable Gate Arrays (FPGAs) providing 100,000 system gates, 4,992 logic elements (cells) and 49,152 bits of embedded RAM, housed in a 208-pin Plastic Quad Flat Pack (PQFP) package. It operates from a 2.5 V core supply with industrial-grade -40C to +85C temperature support and supports I/O banks that interface to 3.3 V and 5 V tolerant standards. The device is fabricated on a 0.22 umm CMOS SRAM process and targets low-cost system-on-a-programmable-chip (SOPC) integration. A Field Programmable Gate Array (FPGA) is a semiconductor integrated circuit containing an array of configurable logic blocks (CLBs), programmable interconnect, and embedded memory blocks that can be re-programmed to implement any digital logic function. FPGAs occupy the programmable-logic tier of the broader digital IC hierarchy: gate array < FPGA < CPLD < programmable SoC. Compared to ASICs, FPGAs deliver lower NRE cost and faster time-to-market but trade off raw clock speed and per-unit cost. The ACEX-1K family is positioned for high-volume, cost-sensitive glue logic, bus bridging, and DSP preprocessing in industrial and telecom equipment. Key features include 624 Logic Array Blocks (LABs), 147 user I/Os, dual-port embedded array blocks (EABs) that can be configured as RAM, ROM, or FIFO, and four low-skew global clock networks. Maximum toggle performance is rated around 250 MHz, with on-chip phase-locked loops (PLLs) for clock synthesis. The 208-pin PQFP (also referenced as BFQFP / QFP-208) package provides a 0.5 mm pitch suitable for conventional SMT assembly lines. The EP1K100QI208-2 is configured through the Altera Quartus design suite (legacy: MAX+PLUS II). Boundary-scan (IEEE 1149.1 JTAG) is supported, and the device is in-system programmable via JTAG or configuration devices such as the EPC2. Application domains include industrial control, telecom interface cards, glue logic for embedded processors, and legacy glue logic replacements for 5V-tolerant 74-series designs. When designing with this part, ensure 2.5 V core decoupling with 0.1 uF ceramic capacitors placed as close to each VCCINT pin as possible, separate VCCIO rails per bank, and use of the Altera configuration device for stand-alone boot. The device is NRND/last-time-buy in many channels - confirm lifecycle before new designs.
EP1K100QI208-2N - ACEX-1K FPGA, 4992 LE, 147 I/O | Altera
The Intel/Altera EP1K100QI208-2N is an ACEX-1K Field Programmable Gate Array (FPGA) with 4,992 logic elements, 49,152 RAM bits, and 147 user I/Os, supplied in a 208-pin BFQFP surface-mount package. It is the Pb-free (N), industrial-temperature (-I) variant with a -2 speed grade, making it a compact, mid-density programmable logic device for legacy embedded systems. An FPGA is a semiconductor device containing programmable logic blocks and programmable interconnects that can be configured after manufacturing to implement arbitrary digital logic. FPGAs sit above CPLDs in logic capacity and are widely used where ASIC development cost is prohibitive, or where in-field logic updates are needed. In the programmable logic hierarchy, this ACEX-1K device belongs to the Altera FPGA family, from the older high-density programmable logic product class that also includes MAX, FLEX, and Cyclone families. Key features confirmed by the DigiKey and Mouser listings include 4,992 logic elements arranged in 624 LABs, 49,152 total RAM bits, 147 user I/Os, and a 208-BFQFP package. The industrial temperature option and Pb-free finish make the EP1K100QI208-2N attractive for extended-temperature legacy boards that must still meet modern lead-free assembly rules. The ACEX-1K family is a 2.5 V core FPGA solution and provides embedded memory blocks for FIFOs, distributed RAM, and ROM functions. The EP1K100 architecture uses a look-up-table-based logic element fabric with fast carry chains, plus dedicated embedded array blocks for memory-rich designs. The -2 speed grade is a mid-range performance option; faster -1 and slower -3 grades exist in the same package, allowing board-level speed migration without changing the PCB footprint. The 208-pin BFQFP package provides enough I/Os for local bus interfaces, memory controllers, and moderate parallel processing tasks while simplifying manufacturing compared with fine-pitch BGA packages used by larger ACEX devices. Typical uses include industrial control I/O boards, video/imaging preprocessing, communication interface bridging, test instruments, and system power-management sequencing logic. Because the device can be reconfigured, it is also suitable for prototyping glue logic in mixed-signal designs. When designing with the EP1K100QI208-2N, remember to place a configuration device or download cable header close to the FPGA and reserve enough board area for the 2.5 V core regulator and I/O bank supplies. Board-level pin migration between -1, -2, and -3 speed grades in the same 208-pin package is possible, but always verify the exact configuration bitstream and timing closure after changing speed grade. This page synthesizes distributor availability, verified datasheet links, drop-in same-family alternatives, and practical design notes not found in a single component listing. It is intended for engineers evaluating legacy Altera FPGA replacements, spare-part sourcing, and PCB pin-compatible upgrades.
EP1K100QI208-3 - 100K Gates ACEX 1K FPGA, 208-PQFP | Altera
The Altera EP1K100QI208-3 is a member of the FLEX 10K / ACEX 1K family of CMOS Field Programmable Gate Arrays, delivering approximately 100,000 gates organized as 4,992 logic cells across 624 Configurable Logic Blocks (CLBs). Housed in a 208-pin Power Quad Flat Pack (PQFP / QFP, gull-wing) package, the device provides 147 general-purpose user I/O pins plus 6 dedicated inputs, targeting high-performance logic, glue-logic, and DSP datapath applications. It is built on a 2.5 V nominal core supply (max 2.625 V) and operates over the industrial temperature range of -40 °C to +85 °C. A Field Programmable Gate Array (FPGA) is a type of programmable logic device (PLD) that combines an array of configurable logic blocks, programmable interconnect, and I/O cells on a single CMOS die. The ACEX 1K family sits in the hierarchy: programmable logic device -> CPLD/FPGA -> SRAM-based FPGA -> ACEX 1K, representing one of the early low-cost, high-volume SRAM-lookup-table FPGA families from Altera (later acquired by Intel). Each logic element uses a 4-input LUT plus a register, and the embedded array blocks (EABs) can be configured as RAM, ROM, or multiplier primitives, allowing designers to mix datapath and control logic without external memory. Key features include 4,992 logic cells / 624 CLBs, ~100 K system gates, 147 user I/Os, an embedded array block memory architecture, JTAG-based IEEE 1149.1 boundary-scan support, and an SRAM-based configuration cell that loads from a serial or parallel EPROM. The "-3" speed grade corresponds to the fastest commercial timing bin offered for this device family, enabling higher fMAX on internal logic and shorter pin-to-pin tPD delays than the slower -1 or -2 grades. The PQFP-208 package has a thermal resistance suitable for forced-air or large-copper PCB designs commonly used in telecom and industrial control chassis. Typical applications include telecommunications line-card glue logic, industrial motor-control state machines, ASIC prototyping, DSP pre/post-processing pipelines, and legacy PCI/ISA bus-interface bridges where the 5 V-tolerant I/O and rich register fabric are advantageous. Designers often pair the EP1K100QI208-3 with an EPC2 configuration device to store the bitstream. When designing with this part, ensure the JTAG chain is correctly ordered with any downstream devices, since multi-device scan chains are a common source of configuration failures. Verify the configuration mode (AS, PS, or JTAG) matches the EPC2 / EPC4 selected, and never apply VCC before the configuration device is stable.
EP1K100QI208-3N - ACEX 1K FPGA, 4992 LE, 2.5V | Intel
The Altera EP1K100QI208-3N is an ACEX 1K family CMOS field-programmable gate array (FPGA) with 4992 logic elements, 49152 total RAM bits, and 147 user I/O pins, delivered in a 208-pin QFP (BFQFP) package and rated for industrial -40C to +85C operation on a 2.5V nominal core supply. An FPGA is a digital integrated circuit whose logic fabric and routing are configured after manufacturing by loading a bitstream, allowing designers to implement custom state machines, bus interfaces, and parallel processing without committing to a fixed ASIC. This EP1K100 device sits between small CPLDs and larger million-gate FPGAs in the programmable-logic hierarchy: its embedded RAM array can be used as FIFOs or small buffers, while the 4992 logic elements provide moderate-density user logic on a single surface-mount QFP. Key features of the EP1K100QI208-3N include the 2.5V ACEX 1K core architecture, 147 general-purpose I/O pins plus 6 dedicated input pins, 49152 RAM bits, and the industrial QI temperature option. The 208-pin gull-wing QFP package supports conventional SMT assembly without the expensive board technology needed by BGA devices, and the -3 speed grade provides a balanced mainstream operating-frequency range for industrial designs. From a technical standpoint, the EP1K100QI208-3N uses SRAM-based configuration, which means it must be configured at power-up by a configuration device or host processor. The I/O count and embedded memory make it suitable for applications that need parallel bus control, display interfaces, or multiple communication channels while still preserving routing flexibility. Because the family is no longer in active production, designers should confirm the exact speed grade, temperature suffix, and lead-free order code on the original Altera/Intel ordering table before committing to production. Typical applications include industrial control I/O boards, test and measurement front-end logic, telecommunication line-card control, image-related frame buffering, and moderate-throughput data path processing. The -40C to +85C industrial rating allows the device to be placed in unheated cabinets, outdoor telecom enclosures, and factory-floor equipment without exceeding the guaranteed temperature specification. One important design consideration is that this is a 2.5V-core FPGA, so 5V or 3.3V external devices require level-shifting and careful I/O standard planning. Supply decoupling should be placed close to every VCC pin, and the configuration source must be selected so that the FPGA reliably loads its bitstream during power-up. This page synthesizes distributor price signals, drop-in alternatives, and practical design notes for the EP1K100QI208-3N beyond what is typically found in a raw datasheet listing, helping engineers evaluate sourcing and replacement options quickly.
EP1K10FC256-1 - 10K Gates ACEX-1K FPGA, 256-BGA | Intel
The Intel (formerly Altera) EP1K10FC256-1 is an ACEX-1K family Field-Programmable Gate Array (FPGA) with 10,000 typical gates, 576 logic elements, 12,288 RAM bits, and 136 user I/Os, housed in a 256-ball FineLine BGA (FBGA-256) package. Built on a 0.22 µm CMOS SRAM-lookup-table process, it operates from a 2.5 V core supply and supports in-system programmability via IEEE 1149.1 JTAG and Altera EPC configuration devices. The "-1" speed grade corresponds to a -1 internal performance tier with up to 250 MHz internal operation, and "FC" denotes a commercial-temperature plastic BGA. What is an FPGA? An FPGA (Field-Programmable Gate Array) is a programmable logic device (PLD) containing an array of configurable logic blocks (CLBs), embedded memory blocks, and programmable interconnect. FPGAs sit at the top of the programmable logic hierarchy below ASICs and above simple PLDs/CPLDs, enabling designers to implement custom digital logic, glue logic, state machines, bus interfaces, DSP pipelines, and even soft-processor cores after PCB assembly. Unlike an ASIC, an FPGA is reconfigurable in the field, which shortens design cycles and supports design iteration. The ACEX-1K family is Altera's mid-density, low-cost CPLD/FPGA crossover family from the early 2000s, designed for glue-logic and low-density glue / bus-interface applications. Key features of the EP1K10FC256-1 include 576 logic elements (12 LEs per LAB array), 12 kbit embedded SRAM (EAB blocks), 136 maximum user I/Os, 3.3 V/2.5 V LVTTL/LVCMOS-compatible I/O with multi-voltage support, and an embedded array block (EAB) for memory or product-term logic. Its SRAM-based configuration requires a boot PROM (typically EPC2) or JTAG download. The 256-ball FineLine BGA (1.0 mm pitch) enables high I/O count in a compact footprint. Typical applications include glue logic replacement, bus-interface bridging (e.g., PCI-to-local bus), low-density DSP preprocessing, parallel I/O expansion, and industrial control interface cards. The 136 user I/Os make it well suited to interfacing with parallel SRAM, FIFOs, and legacy microcontrollers. The 2.5 V core is compatible with 3.3 V I/O banks, allowing mixed-voltage system integration. A critical design consideration is that ACEX-1K is now NRND/last-time-buy; new designs should consider Cyclone series. The SRAM configuration must be reloaded on every power-up. The 256-BGA requires X-ray or rework-grade assembly for prototyping. Decoupling per Altera ACEX-1K handbook recommended 0.1 µF per VCC pin and bulk 33 µF tantalum.
EP1K10FC256-2 - 10K ACEX-1K FPGA, 136 I/O, 256-BGA | Intel / Altera
The Intel / Altera EP1K10FC256-2 is a member of the ACEX-1K family of Field Programmable Gate Arrays (FPGAs) housed in a 256-ball FineLine BGA package with 136 user I/O pins. The device integrates 576 logic elements organized as 72 Logic Array Blocks (LABs), supported by 12,288 RAM bits of embedded dual-port memory and approximately 10,000 typical gates. It is fabricated on a 0.22 µm CMOS process and operates from a 2.5 V core supply within the 2.375 V to 2.625 V tolerance band. An FPGA (Field Programmable Gate Array) is a class of programmable logic device (PLD) that combines the density of gate arrays with the configurability of logic blocks, interconnect, and I/O. Within the broader system-on-a-programmable-chip (SOPC) taxonomy, FPGAs enable integration of megafunctions such as DSP blocks, FIFOs, dual-port memories, and specialized logic into a single device, replacing multiple discrete components and accelerating time-to-market. Key features of the EP1K10FC256-2 include a maximum toggle frequency around 200 MHz, embedded array blocks (EABs) for efficient memory and specialized logic functions, support for LVCMOS, LVTTL, SSTL-2/3, and HSTL I/O standards, and an in-system programmability (ISP) interface via the JTAG-compliant passive serial configuration scheme. The device is specified for commercial operating temperature (0 °C to 70 °C) at the -2 speed grade. From a technical depth perspective, the ACEX-1K architecture pairs a fine-grained Look-Up Table (LUT)-based logic fabric with coarse-grained Embedded Array Blocks (EABs) that can be configured as RAM, ROM, or specialized megafunction blocks. This heterogeneous structure delivers higher effective logic density than uniform LUT fabrics of similar raw gate count, while the 0.22 µm process balances cost and performance for cost-sensitive glue-logic, bridging, and control-plane applications. Typical applications include telecommunications bridging, low-density glue logic, industrial control interfacing, and pre-silicon prototyping of ASIC-equivalent logic. With its small footprint, ample dual-port memory, and JTAG ISP, the EP1K10FC256-2 is widely used in legacy designs where re-spin cost or supply continuity matter more than absolute logic density. When designing with this part, verify that the Quartus II or MAX+PLUS II toolchain supports the ACEX-1K family, confirm power-rail sequencing for the 2.5 V VCCINT and any bank reference voltages, and respect the device's I/O pin count when migrating from the original -1 or -3 speed grades. This page synthesizes distributor pricing, drop-in same-package alternatives, application contexts, and practical design notes not found in the original Altera datasheet alone.
EP1K10FC256-2N - 10K Gate ACEX-1K FPGA 576 LE 256-BGA | Intel / Altera
The Intel / Altera EP1K10FC256-2N is a member of the ACEX-1K family of Field-Programmable Gate Arrays (FPGAs) built on a 2.5 V SRAM-based look-up table (LUT) architecture, offering 10,000 typical gates, 576 logic elements, and 12,288 RAM bits in a 256-ball FineLine BGA package. It integrates an enhanced embedded array for megafunctions such as efficient memory and specialized logic, with dual-port RAM and 72 Logic Array Blocks (LABs) supporting up to 136 user I/O pins. What is a FPGA? A Field-Programmable Gate Array is a semiconductor device based around a matrix of configurable logic blocks (CLBs) connected via programmable interconnect. FPGAs sit within the broader taxonomy of programmable logic devices (PLDs) -> complex programmable logic devices (CPLDs) -> FPGAs -> high-density SRAM-based FPGAs. Unlike fixed-function ASICs, FPGAs can be reconfigured in-system to implement custom digital logic, glue logic, signal processing pipelines, and bus interfaces, making them ideal for prototyping and low-to-mid volume production. Key features of the EP1K10FC256-2N include 0.5 ns pin-to-pin logic delay, built-in dual-port RAM, support for the Altera MAX+PLUS II and Quartus design flows, and a 2.375 V to 2.625 V core supply. The 256-ball FineLine BGA package provides high I/O density for memory-rich and bus-interface designs, while the commercial 0 °C to 70 °C operating range suits bench instrumentation, communications glue logic, and industrial control boards. The ACEX-1K architecture uses an embedded array of Enhanced Logic Elements (ELEs) interleaved with embedded array blocks (EABs) that implement dedicated dual-port RAM and ROM. This hybrid fabric lets designers place megafunctions such as FIFOs, CAMs, multipliers, and DSP blocks in silicon-efficient EABs while reserving LUTs for random logic, yielding better performance-per-area than pure 4-input LUT FPGAs of the same era. Typical applications include glue logic for legacy microprocessor buses, peripheral controllers (UART, SPI, I2C bridges), low-speed digital signal processing front-ends, prototyping platforms, and industrial communication bridges. The 136 available user I/Os also make the EP1K10FC256-2N a practical fit for memory-interface bridging, where the 12 Kbits of embedded RAM act as a small cache or FIFO between two clock domains. When designing with this device, plan power sequencing carefully because the 2.5 V core must ramp monotonically while I/O banks can be powered at 3.3 V to remain LVTTL/LVCMOS-compatible. Decoupling requires 0.1 µF high-frequency capacitors placed within 5 mm of every supply pin, plus bulk capacitance on each supply plane to manage in-rush during configuration. This page synthesizes distributor pricing, drop-in ACEX-1K family alternatives, and practical design notes not found in the original manufacturer datasheet.
EP1K10FC256-3 - ACEX 1K FPGA, 10K Gates, 256-BGA | Intel
The Intel (formerly Altera) EP1K10FC256-3 is a member of the ACEX 1K family of Field-Programmable Gate Arrays (FPGAs), featuring 10,000 typical gates, 576 logic elements, and 12,288 RAM bits in a 256-ball Fine-Pitch Ball Grid Array (FBGA) package with 136 user I/Os. Operating from a 2.5 V core supply, it is built on a 0.18 µm SRAM-based architecture with embedded array blocks optimized for cost-sensitive, high-volume designs. A FPGA (Field-Programmable Gate Array) is a type of programmable logic device (PLD) that combines the density of gate arrays with the flexibility of user-programmable interconnect, enabling designers to implement custom digital logic, glue logic, glue-less interfaces, state machines, and arithmetic pipelines on a single chip. Within the broader taxonomy of integrated circuits, an FPGA sits between standard logic ICs (fixed function) and ASICs (application-specific) - offering hardware-level parallelism and re-programmability without NRE costs. Key features of the EP1K10FC256-3 include 72 logic array blocks (LABs), dual-port EAB (Embedded Array Block) memory, in-system programmability via IEEE 1149.1 JTAG, MultiVolt I/O support for interfacing with 2.5 V, 3.3 V, and 5.0 V systems, and a -3 speed grade. The device supports 12,288 bits of embedded RAM distributed across EAB blocks, enabling efficient on-chip buffering for FIFOs, lookup tables, and small data paths without consuming general-purpose logic. The ACEX 1K architecture combines logic elements (LEs) with embedded array blocks (EABs), where each EAB provides up to 4 Kbits of RAM that can be configured as synchronous SRAM, ROM, or specialized logic functions such as multipliers and megafunctions. The -3 speed grade designates a mid-tier performance bin, balancing timing margin against cost for glue logic, bus bridging, and low-to-mid complexity state machines rather than high-speed DSP or SERDES workloads. Typical applications include bus-interface bridging between microcontrollers and peripherals, glue logic replacement in telecom and industrial control equipment, low-density control and signal processing in test and measurement, and prototyping platforms for ASIC verification. Its dual-port EAB structure also makes it well suited to small FIFO buffers and lookup-table-based waveform synthesis. When designing with this part, pay attention to the 256-ball FBGA land pattern, the 2.5 V VCCINT/VCCIO rail requirements, and the JTAG chain integration with any boundary-scan test infrastructure. Engineers migrating from the original ACEX 1K family should also evaluate the Cyclone-series successors for new designs, while keeping the EP1K10FC256-3 as a long-term production component for legacy boards. This page synthesizes distributor pricing, drop-in FPGA alternatives, and practical design notes not found in the manufacturer datasheet alone.
EP1K10FC256-3N - 10K Gates ACEX-1K FPGA, 256-FBGA | Intel / Altera
The Intel (formerly Altera) EP1K10FC256-3N is an ACEX-1K family Field Programmable Gate Array (FPGA) delivering 10,000 typical gates and 576 logic elements in a 256-ball FineLine BGA package with 136 user I/O pins, operating from a 2.5 V core supply on a 0.22 µm CMOS process. An FPGA (Field-Programmable Gate Array) is a semiconductor device built around an array of configurable logic blocks (CLBs / LABs) interconnected by a programmable routing fabric. FPGAs sit in the programmable logic hierarchy below ASICs (Application-Specific ICs) but above discrete glue logic, offering hardware-level parallelism, in-field reprogrammability, and time-to-market advantages. The ACEX-1K family, introduced by Altera in the late 1990s, was an early "system-on-a-programmable-chip" (SOPC) family that embedded array blocks (EABs) alongside logic to deliver efficient memory and DSP megafunctions in a single device. Key features of the EP1K10FC256-3N include 72 LABs (Logic Array Blocks), 12288 bits of embedded RAM (12 Kbits), 136 user I/O pins, a maximum internal operating frequency around 200 MHz, and SRAM-based configuration cells requiring an external configuration device or JTAG. The "-3" speed grade and "N" suffix denote a commercial-temperature, lead-free, lead-free reflow-compatible process. The 256-FBGA (17 mm × 17 mm) package is a surface-mount fine-pitch BGA designed for high-density board layouts. Architecturally, the EP1K10FC256-3N combines 72 LABs (each with 8 logic elements) and embedded array blocks (EABs) used as dual-port or single-port RAM, ROM, or multiplier megafunctions. Configuration is SRAM-based, meaning the device loses its bitstream at power-down and must be reconfigured at boot from an external PROM, JTAG, or controller - a critical design consideration that distinguishes ACEX-1K from later Cyclone/MAX-based flash- or antifuse-based families. Typical applications include glue-logic integration, custom interface bridging (PCI, I2C, UART), low-to-moderate complexity DSP pre/post-processing, industrial control and instrumentation, and legacy telecommunications line cards. ACEX-1K parts were also widely used in development boards, prototyping platforms, and educational FPGA labs. When designing with the EP1K10FC256-3N, ensure an external configuration source (EPC1/EPC2 serial PROM, ByteBlaster, or JTAG) is in the BOM - the part is volatile and will not retain its design on power-cycle. Verify the 2.5 V core supply decoupling network: at least four 0.1 µF ceramic capacitors plus a bulk 47-100 µF tantalum placed within 25 mm of the FBGA supply balls is recommended. This page synthesizes distributor pricing, same-package drop-in alternatives from the same ACEX-1K family, configuration-device recommendations, and practical design notes not consolidated on any single distributor page.
EP1K10FI256-2 - 10K Gates ACEX-1K FPGA, 256-BGA | Altera
The Intel (formerly Altera) EP1K10FI256-2 is a member of the ACEX-1K family of Field Programmable Gate Arrays (FPGAs) integrating 10,000 equivalent gates, 576 logic cells (LEs) organized into 72 Configurable Logic Blocks (CLBs), 12,288 bits of embedded array RAM (EAB), and 136 maximum user I/O pins, all housed in a 256-pin FineLine BGA (FBGA) package. The "-2" speed grade denotes the standard speed bin, and the part is built on a 0.22 µm CMOS process with a 2.5 V core supply, targeting low-cost system-on-a-programmable-chip (SOPC) integration. A Field-Programmable Gate Array (FPGA) is a reconfigurable digital integrated circuit that combines programmable logic blocks, programmable interconnects, and programmable I/O cells on a single die. Within the broader taxonomy, an FPGA belongs to programmable logic devices (PLD) -> digital logic IC -> semiconductor. ACEX-1K specifically implements an enhanced embedded array architecture that enables efficient megafunctions such as dual-port RAM, ROM, and specialized DSP blocks while keeping per-unit cost comparable to mid-range ASICs. Key features of the EP1K10FI256-2 include a maximum internal operating frequency of 200 MHz, in-system programmability via IEEE 1149.1 (JTAG) and passive serial configuration modes, multi-voltage I/O support (1.8 V, 2.5 V, 3.3 V LVTTL/LVCMOS), and a 4-input look-up table (LUT) structure per logic element. The device is offered in the industrial temperature grade (-40 °C to +85 °C) per the "I" suffix in the package code, making it suitable for factory, automotive, and outdoor edge nodes. Architecturally, ACEX-1K devices use a continuous SRAM-based configuration cell so designs can be reloaded at any time without removing the part from the board, which is critical for field upgrades and prototyping workflows. The 256-ball FineLine BGA package provides high-density board escape, and the part is supported by the Quartus development toolchain (legacy: MAX+PLUS II). Engineers typically use the EP1K10FI256-2 for glue logic, custom interface bridging, and pre-ASIC prototyping of low-to-medium complexity state machines. Typical applications for this part include industrial control glue logic, telecom line-card glue and interface bridging, custom peripheral controllers in PCI/ISA systems, low-density DSP co-processors, and pre-ASIC prototyping of mid-range ASICs. The 256-BGA footprint is widely reused, allowing board layouts to be ported across the ACEX-1K density range from EP1K10 up to EP1K100. When designing with the EP1K10FI256-2, ensure that the 256-ball FBGA land pattern is correct (1.0 mm pitch FineLine BGA) and that PCB routing accounts for the finer escape. Decoupling must include at least four 0.1 µF capacitors placed within 5 mm of the VCCINT/VCCIO power balls, plus a 10 µF bulk capacitor per power rail. JTAG signals (TCK, TMS, TDI, TDO) must be pulled to a defined logic level through 10 kΩ resistors to keep configuration mode stable at power-up. This page synthesizes distributor pricing, ACEX-1K family variants, and practical design notes not found in the manufacturer datasheet alone.
EP1K10FI256-2N - 10K Gates ACEX 1K FPGA 256-FBGA | Intel
The Intel (formerly Altera) EP1K10FI256-2N is a member of the ACEX 1K family of Field Programmable Gate Arrays (FPGAs) featuring 10,000 typical gates, 576 logic elements (cells), and 12,288 RAM bits in a 256-ball FineLine BGA package. Built on a 0.22 µm CMOS process with a 2.5 V core supply and industrial temperature grade, this device targets low-cost system-on-a-programmable-chip (SOPC) integration through its enhanced embedded array architecture. The -2 speed grade delivers up to 200 MHz internal operation, making it suitable for glue logic, bus interface bridging, and DSP co-processing applications. What is an FPGA? A Field Programmable Gate Array is a semiconductor device built around an array of configurable logic blocks (CLBs) connected by programmable interconnect, surrounded by programmable I/O cells. FPGAs sit at the top of the programmable logic hierarchy: programmable logic device (PLD) -> complex PLD (CPLD) -> FPGA -> SoC FPGA. Unlike CPLDs which use non-volatile fuse/flash memory and are best for combinatorial glue logic, FPGAs are RAM-based and contain dedicated memory blocks, multiplier blocks, and high-speed I/O serializers, making them appropriate for data-path, DSP, and pipelined designs. The ACEX 1K architecture combines a continuous Embedded Array (EAB-based dual-port memory), Logic Array (LUT-based logic), and enhanced I/O elements with JTAG boundary-scan support. Each EAB provides dual-port RAM up to 4 Kbits and can be configured for FIFO, ROM, or single-port memory. The 136 user I/O pins support multiple I/O standards (LVTTL, LVCMOS, PCI) with 5 V tolerance on selected banks. Configuration is via passive serial (PS), active serial (AS), or JTAG modes using a serial configuration device. This device is a drop-in upgrade path for Altera FLEX 8000/10K designs requiring higher density or faster speed grades, while remaining software-compatible with the MAX+PLUS II and Quartus design tools (legacy support). Typical applications span industrial control, telecommunications line cards, automotive telematics, and instrumentation data acquisition. The 256-ball 1.0 mm pitch FBGA package enables compact board layouts while providing 136 usable I/O pins for high pin-count designs. When designing with this FPGA, plan configuration memory on a serial EEPROM or via JTAG for in-system reprogrammability. The 2.5 V core requires a low-dropout regulator with adequate decoupling; place 0.1 µF ceramic capacitors adjacent to each VCCINT ball. Industrial temperature grade (-40 °C to +85 °C) allows deployment in uncontrolled environments. Note that ACEX 1K is a legacy family — verify long-term supply via Intel/Altera product longevity commitments before committing to new designs. This page synthesizes distributor pricing, drop-in alternative listings, and engineering design notes not found in the original ACEX 1K datasheet, with cross-references to other ACEX 1K speed and temperature variants for migration planning.
EP1K10QC208-1N FPGA - ACEX 1K 10K Gates 2.5V | Altera
The Altera EP1K10QC208-1N is a 2.5 V ACEX-1K field-programmable gate array (FPGA) that implements approximately 10,000 typical gates with 576 logic elements, 72 LABs, 120 user I/O pins, and 12,288 RAM bits in a 208-pin BFQFP (PQFP-208) package. It is a -1 speed grade device with a listed maximum internal frequency of 250 MHz and is manufactured with 0.22 um CMOS technology. An FPGA is an integrated circuit whose logic fabric can be reconfigured after manufacturing by loading a hardware description. Unlike fixed-function ASICs, FPGAs contain programmable logic elements, I/O cells, and interconnect; designers use HDL to describe logic, then place and route the design into the programmable fabric. The ACEX-1K family was Altera's low-cost 2.5 V FPGA line, positioned between CPLDs and larger FPGA families. This hierarchy matters because engineers selecting EP1K10QC208-1N are usually choosing programmable logic rather than a fixed microcontroller or ASIC. The EP1K10QC208-1N contains 576 logic elements arranged in 72 LABs, providing enough logic for state machines, bus interfaces, decode logic, and small data-path operations. It provides 120 user I/O pins and 12,288 embedded RAM bits, making it useful for glue logic consolidation, FIFO buffers, and parallel interface adaptation. The lead-free N suffix distinguishes this version for modern RoHS-oriented assembly lines. The package is a square, surface-mount 208-pin metal/bump quad flat pack with gull-wing terminals, known in the industry as PQFP-208 or BFQFP. The core runs at 2.5 V, consistent with Altera's 0.22 um process generation. In a typical design, the FPGA core consumes modest static power; dynamic power scales with toggle rate, IO loading, and resource utilization. The 250 MHz speed grade listed in family specifications is a maximum internal switching-frequency rating, not a guaranteed system clock for all routed designs. Actual timing closure depends on routing delays, placement, fan-out, and the use of global clock resources. Typical applications include industrial interface boards, motor-control logic, display timing generation, communication protocol adapters, and digital system prototyping. With 120 I/O and 10K typical gates, the device fits designs that require parallel control or simple DSP, and it can replace obsolete ASICs when an FPGA bitstream is acceptable. In retrofit scenarios, the -1N lead-free option is useful for new PCB assembly lines that require lead-free solder. A key design consideration is configuration: this FPGA is volatile and needs an external configuration source such as a CPLD, configuration device, or controller. Designers should plan for configuration time and use the appropriate JTAG or passive serial interface on power-up. This page synthesizes distributor listing data, speed-grade alternatives, pricing context, and practical FPGA design guidance that is not all contained in a single datasheet view, giving engineers a useful starting point for sourcing and replacement decisions.
EP1K10QC208-2 - ACEX-1K FPGA, 10K Gates, 576 Logic Elements, 208-PQFP | Intel (Altera)
The Intel (formerly Altera) EP1K10QC208-2 is a member of the ACEX-1K family of Field-Programmable Gate Arrays (FPGAs), delivering 10,000 equivalent system gates, 576 logic elements arranged as 72 Configurable Logic Blocks (CLBs), and 12,288 RAM bits of dual-port embedded memory, all integrated in a 208-pin Plastic Quad Flat Pack (PQFP / BQFP) package. Built on a 2.5 V CMOS process, the -2 speed grade part is specified for commercial operating conditions and supports 120 user I/O pins, enabling compact integration of glue logic, register-transfer designs, and modest DSP pipelines on a single programmable device. An FPGA (Field-Programmable Gate Array) is a semiconductor integrated circuit containing an array of configurable logic blocks (CLBs), programmable interconnect, and I/O cells that the user can re-program in-system to implement arbitrary digital functions. FPGAs sit between fixed-function ASICs and microcontrollers: more flexible than ASICs (no mask set, no NRE) and faster/higher-throughput than microcontroller firmware. ACEX-1K sits in the low-density end of the historical Altera product tree: FPGA family > SRAM-based FPGA > low-cost programmable logic > system-on-a-programmable-chip (SOPC) building block. Key features include on-chip dual-port RAM for FIFO and register-file implementation, embedded array blocks (EABs) for memory-mapped functions, JTAG-based IEEE 1149.1 boundary-scan test support, and dedicated routing resources that preserve timing margins at the -2 speed grade. The 208-BQFP package is a through-hole-compatible gull-wing surface-mount outline, enabling PCB layouts that have been in continuous service in industrial controllers, telecom line cards, and test equipment for two decades. Typical applications include industrial control and factory automation backplanes, telecom line-interface glue logic, legacy test-and-measurement instrumentation, and migration of older discrete-TTL designs onto a single reconfigurable device. The ACEX-1K family uses SRAM configuration cells, so a configuration PROM (EPC1, EPC2) or a microcontroller-driven download cable is required to load the bitstream at every power-up. When designing with this part, verify that your Quartus II design flow targets the ACEX-1K device family explicitly; newer Quartus versions do not include the legacy ACEX-1K libraries, so an older release or a third-party toolchain may be required. Plan for the configuration memory requirement: an 8-bit-wide EPC2 or compatible serial PROM is the standard storage device for production boards.
EP1K10QC208-2N - ACEX-1K 10K Gates FPGA | Intel / Altera
The Intel (formerly Altera) EP1K10QC208-2N is a member of the ACEX-1K family of SRAM-based Field Programmable Gate Arrays (FPGAs), delivering 10,000 typical gates, 576 logic elements, and 12,288 bits of embedded array RAM in a 208-pin plastic Quad Flat Pack (PQFP/BFQFP) package. It operates from a 2.5V core supply (2.375V to 2.625V) and provides 120 user I/O pins, making it suitable for medium-density glue-logic, bus-interface, and control-plane applications. An FPGA (Field Programmable Gate Array) is a semiconductor integrated circuit built around an array of configurable logic blocks (CLBs), programmable interconnect, and programmable I/O cells. FPGAs belong to the broader category of programmable logic devices (PLDs), which also include SPLDs, CPLDs, and structured-ASIC-class devices; within the semiconductor hierarchy they sit between fixed-function ASICs and general-purpose processors, offering hardware-timed parallelism with field-updatable functionality. The ACEX-1K family introduced embedded array blocks (EABs) that can be configured as dual-port RAM, ROM, or first-in-first-out (FIFO) memory, giving it a hybrid PLA + memory architecture uncommon to its generation. Key features of the EP1K10QC208-2N include 576 logic elements organized into 72 logic array blocks (LABs), 12 embedded array blocks providing up to 24 Kbits of RAM, IEEE 1149.1 JTAG boundary-scan support, multi-volt I/O compatible with 2.5V/3.3V/5.0V mixed-voltage buses, and in-system programmability via the Altera serial configuration (AS) or passive serial (PS) modes. The device is fabricated on a 0.22 µm CMOS process and supports commercial temperature grades. Architecturally, the EP1K10QC208-2N combines a fine-grained logic fabric with coarse-grained EAB memory, allowing designers to implement megafunctions such as multipliers, FIR filters, and dual-port FIFOs in a single device. The 200 MHz internal performance quoted in vendor data sheets refers to typical LE toggle rates, with system throughput bounded by I/O and interconnect delays at higher logic utilization. Typical applications include industrial glue logic, legacy peripheral bus bridges, telecommunications line-card control, military and avionics retrofits, and educational FPGA development platforms. The wide PQFP package also makes it convenient for prototype work using breakout adapters and through-hole solderless breadboards. When designing with this part, note that PQFP packages demand careful PCB layout for impedance control and thermal dissipation; the commercial-grade die does not target AEC-Q100 automotive qualification, and modern ACEX-1K designs should be migrated to Cyclone IV or MAX 10 families when long-term supply is required, since ACEX-1K is now classified as mature/last-time-buy at Intel FPGA. This page synthesizes distributor pricing, drop-in compatible alternatives sourced from the same ACEX-1K family, and practical design notes not found in the manufacturer datasheet.
EP1K10QC208-3 - 10K Gate ACEX-1K FPGA, 208-PQFP | Intel / Altera
The Intel / Altera EP1K10QC208-3 is a member of the ACEX-1K family of Field Programmable Gate Arrays (FPGAs) delivering 10,000 typical gates, 576 logic elements (LEs), and 12,288 RAM bits in a 208-pin Plastic Quad Flat Pack (PQFP/BFQFP) package. The device operates from a 2.5 V core supply and is built on a 0.22 µm SRAM-based CMOS process, supporting in-system programmability via an industry-standard configuration interface. An FPGA (Field Programmable Gate Array) is a reconfigurable integrated circuit whose logic function is defined by a user-supplied configuration bitstream rather than by fixed factory mask wiring. FPGAs sit within the broader programmable logic hierarchy: PLD (Programmable Logic Device) -> CPLD (Complex PLD) -> FPGA. Compared with fixed-function ASICs, FPGAs trade raw performance-per-watt and unit cost for design flexibility, fast prototyping, and field-upgradability, making them the dominant platform for low-to-medium volume digital logic, glue logic, DSP pipelines, and I/O expansion. Key features of the EP1K10QC208-3 include 120 user I/O pins, 72 LABs (Logic Array Blocks) organized in a dual-port Embedded Array Block (EAB) fabric, an internal core clock network supporting up to 200 MHz operation, and 6 dedicated clock inputs. The -3 speed grade places this part in the faster tier of the ACEX-1K family, and the 'QC' package suffix identifies the 208-pin PQFP variant. The device supports hot-socketing and multi-voltage I/O standards including LVTTL, LVCMOS, PCI, and SSTL. The architecture is built around an Enhanced Embedded Array for implementing megafunctions such as efficient memory and specialized logic functions, with dual-port EABs that can be configured as RAM, ROM, or FIFO. Logic is implemented in a 4-input look-up table (LUT) per LE, with dedicated carry chains for arithmetic and a rich interconnect fabric (FastTrack) for predictable timing closure. Typical applications include glue logic in industrial controllers, I/O expansion for microcontrollers, low-cost DSP preprocessing, custom peripheral interfacing, and legacy system upgrades where the original ACEX-1K design cannot be re-engineered. The PQFP-208 package is well suited to through-hole prototype boards and older manufacturing lines that cannot accept fine-pitch BGA packages. When designing with this device, note that the ACEX-1K family is mature and has been classified NRND (Not Recommended for New Designs) by Intel/Altera; new designs should consider Cyclone or MAX II families. Configuration requires an external EPROM, EEPROM, or controller-based scheme and JTAG for in-system programming. This page synthesizes distributor pricing, ACEX-1K family datasheet excerpts, and drop-in ACEX-1K alternatives across the 208-PQFP footprint that are not collated in any single manufacturer document.
EP1K10QC208-3N - ACEX-1K FPGA, 10K Gates, 208-PQFP | Intel / Altera
The Intel (formerly Altera) EP1K10QC208-3N is an ACEX-1K series Field-Programmable Gate Array (FPGA) housed in a 208-pin Plastic Quad Flat Pack (PQFP/BQFP) package. It integrates 10,000 typical gates with 576 logic elements (LEs), 12,288 RAM bits, and 72 Logic Array Blocks (LABs), exposing 120 user I/O pins. Built on a 0.22 µm CMOS process at 2.5 V core, the -3 speed grade delivers up to 200 MHz internal operation, making it a benchmark mid-density legacy FPGA. An FPGA (Field-Programmable Gate Array) is a reprogrammable semiconductor whose logic fabric, consisting of configurable logic blocks (LBs/LABs) interconnected by a programmable routing matrix, lets designers implement arbitrary digital circuits. FPGAs sit between fixed-function Application-Specific Integrated Circuits (ASICs) and software-programmable microcontrollers in the design hierarchy: ASIC -> FPGA -> CPLD -> Microcontroller -> Microprocessor. The ACEX-1K family specifically pioneered embedded array blocks (EABs) that combine look-up-table logic with dedicated dual-port RAM, accelerating data-path and DSP designs for the early 2000s. Key features include embedded dual-port SRAM via EABs, multi-volt I/O supporting 2.5 V and 3.3 V interfaces, in-system programmability through the IEEE 1149.1 JTAG port, and on-chip phase-locked loops for clock management. The 208-BQFP variant is a metric quad flat pack with a generous perimeter-I/O arrangement, well suited for legacy industrial backplanes where through-hole or surface-mount gull-wing leads are preferred over fine-pitch BGAs. Typical applications span industrial control, telecommunications glue logic, glue/bridge functions in telecom line cards, prototyping for ASIC designs, and legacy military/aerospace retrofits. The 120 user I/Os and 12 Kbits of block RAM enable moderate-complexity state machines and small FIFO buffers. When designing with this device, remember that ACEX-1K predates modern configuration schemes - it requires an EPC configuration EPROM or microcontroller-driven passive serial configuration. Designers migrating to contemporary Cyclone or MAX families should evaluate Cyclone II/III/IV as functional successors, accepting full PCB redesign because no pin-compatible modern equivalent exists.