FPGA & CPLD
Products (6357)
EP20K400BC652-1X - APEX 20KE FPGA 400K Gates 652-BGA | Intel
The Intel EP20K400BC652-1X is a high-density APEX 20KE family FPGA delivering 400,000 system gates, 16,640 logic elements (cells), and 212,992 bits of embedded memory in a 652-ball plastic BGA (PBGA652) package. It operates on a 1.8 V core supply with LVDS-capable I/O, integrates 4 delay-locked loops (DLLs) and 4 phase-locked loops (PLLs) for high-speed clock management, and supports a maximum toggle frequency of 250 MHz with a 2.5 ns pin-to-pin propagation delay. An FPGA (Field Programmable Gate Array) is a semiconductor device built from an array of configurable logic blocks (CLBs), programmable interconnect, and embedded memory that engineers can reconfigure after manufacture to implement arbitrary digital logic. APEX 20KE belongs to the broader PLD (Programmable Logic Device) hierarchy: FPGA -> PLD -> logic IC -> integrated circuit -> semiconductor. The APEX 20KE generation pioneered MultiCore architecture integrating LUT logic, product-term logic, and embedded memory on a single die, enabling system-on-a-programmable-chip (SOPC) integration at densities that previously required multiple discrete CPLDs and FPGAs. Key features include 502 user I/O pins, 4 dedicated input pins, embedded array blocks (EABs) of 2,048 bits each (104 total), support for LVTTL, LVCMOS, PCI, SSTL-2/3, and LVDS I/O standards, and in-system programmability via the IEEE 1149.1 JTAG interface. The device is fabricated on a 0.22 um CMOS process with a 2.5 V core voltage and supports industrial temperature operation. Typical applications include high-speed telecommunications backplanes, digital signal processing front-ends, custom peripheral controllers for ASIC prototyping, and parallel processing glue logic in legacy industrial and military systems. The 652-ball BGA provides high I/O density required by parallel bus aggregation and memory interfaces, while the embedded memory and PLL resources support pipeline-heavy DSP data paths. When designing with this part, ensure your PCB layout accommodates the 1.27 mm ball pitch and that the multi-voltage I/O banks are powered cleanly to meet SSTL/LVDS thresholds. Programming is performed through JTAG or Altera ByteBlaster using the legacy MAX+PLUS II or Quartus design toolchains. Note that the APEX 20K family is now in end-of-life status; plan for Cyclone or Stratix equivalents on new designs. This page synthesizes distributor pricing, drop-in package-compatible alternatives, and practical design notes not consolidated in the manufacturer datasheet. Information is anchored on the original Apex 20KE datasheet retrieved from verified distributor and archive sources.
EP20K400BC652-1XV - 400K APEX-20K FPGA, 502 I/O, 652-BGA | Intel / Altera
The Intel (formerly Altera) EP20K400BC652-1XV is a member of the APEX-20K family of programmable logic devices, integrating 1,052,000 system gates and 16,640 logic elements in a 652-ball LBGA package. It features 502 user I/Os, 1,664 LABs/CLBs, and 212,992 bits of embedded RAM, delivering a high-density programmable platform for system-on-a-programmable-chip (SOPC) integration. What is an FPGA? An FPGA (Field-Programmable Gate Array) is a type of integrated circuit containing an array of configurable logic blocks (CLBs), programmable interconnect, and I/O cells that engineers can reconfigure after manufacturing. FPGAs sit above CPLDs and ASICs in the programmable logic hierarchy, offering higher density, finer timing control, and embedded memory blocks. The APEX-20K family specifically introduced MultiCore architecture, combining look-up-table (LUT) logic with embedded product-term blocks and dual-port RAM in a single fabric - a precursor to modern heterogeneous SoC FPGAs. Key features of the EP20K400BC652-1XV include MultiCore architecture with embedded memory, FastTrack interconnect for predictable timing, 2.5 V core supply, propagation delay of approximately 2.5 ns, and an operating junction temperature range of 0°C to 85°C. The device supports in-system programmability via the IEEE 1149.1 JTAG interface and IEEE 1532 configuration, allowing rapid prototyping and field upgrades. Technically, the EP20K400BC652-1XV uses a 0.22 µm CMOS process and is positioned in the mid-density tier of the APEX-20K series, between the EP20K200 and EP20K600 variants. The 'BC' package code denotes a LBGA-652 footprint, the '1' suffix indicates speed grade -1, and the 'XV' suffix denotes industrial commercial temperature range with lead-free / RoHS-compliant ball finish. Typical applications include telecommunications infrastructure, high-speed data acquisition, ASIC prototyping, and embedded computing platforms requiring mid-range logic density. The 502 I/O count supports wide parallel buses, multiple memory interfaces, and multi-channel datapaths in a single device. When designing with the EP20K400BC652-1XV, ensure your power delivery network provides clean 2.5 V with adequate bulk decoupling. Note that this part is now classified as mature/legacy by Intel; consult PCN/PDN notices before committing to long-life-cycle designs. This page synthesizes distributor pricing, drop-in APEX-20K family alternatives, and practical design notes not found in the standalone datasheet.
EP20K400BC652-1XVQ - APEX 20K 400K Gates FPGA | Intel/Altera
The Intel/Altera EP20K400BC652-1XVQ is a high-density field programmable gate array (FPGA) from the APEX 20K family, delivering up to 400,000 gates and integrating MultiCore architecture with embedded memory blocks in a 652-ball BGA package. The device supports system-on-a-programmable-chip (SOPC) integration by combining look-up table (LUT) logic, product-term logic, and embedded array blocks (EABs) on a single die. A field programmable gate array (FPGA) is a type of programmable logic device (PLD) that uses an array of configurable logic blocks (CLBs), programmable interconnects, and I/O cells to implement custom digital circuits after manufacturing. FPGAs sit within the broader semiconductor hierarchy as specialized integrated circuits > programmable logic > programmable logic devices. Unlike fixed-function ASICs, FPGAs can be reconfigured in the field, enabling rapid prototyping, hardware acceleration, and design iteration without mask costs. The APEX 20K family is the industry's first PLD to incorporate true SOPC integration, embedding both logic and memory resources on a single die. Key specifications include a maximum of 400,000 system gates, up to 212,000 typical gates, and 1,680 logic elements distributed across the MultiCore architecture. The device operates from a 1.8 V core supply with LVDS-compatible I/O and supports in-system programmability through the IEEE 1149.1 JTAG interface. The EP20K400BC652-1XVQ is organized into MegaLAB structures that pair logic array blocks (LABs) with embedded system blocks (ESBs) containing memory. Each MegaLAB combines 16 LABs with one ESB, delivering distributed and block memory options for data path and control applications. The architecture supports true dual-port RAM, single-port RAM, ROM, and FIFO memory functions within the embedded array. Typical applications include telecommunications infrastructure, high-speed data processing, digital signal processing (DSP) front-ends, industrial control systems, and ASIC prototyping. The high gate count and embedded memory make this device particularly suitable for designs requiring both compute density and on-chip storage without external SRAM. When designing with this part, ensure proper decoupling on all 1.8 V core and I/O supply pins, and verify JTAG chain integrity for in-system programming. The -1 speed grade indicates the slowest timing bin in the family, so verify timing closure against your target clock frequency before committing to layout.
EP20K400BC652-2AA - 16,640-Cell FPGA | Intel | Legacy Logic
Intel EP20K400BC652-2AA is an APEX-20K family field-programmable gate array containing 1,664 LABs/CLBs and 16,640 logic elements/cells. It provides 212,992 bits of total RAM, 502 user I/O, and 1,052,000 gates in a 652-ball BGA package. The device operates from a 2.375 V to 2.625 V supply and is specified over a 0 °C to 85 °C operating-temperature range. An FPGA, or field-programmable gate array, is a semiconductor device whose logic architecture and interconnections are configured after manufacturing. Its hierarchy commonly extends from programmable logic blocks to embedded-memory blocks and general-purpose I/O, then to programmable logic and digital integrated circuits. APEX-20K devices combine programmable logic, memory, and I/O resources for implementing high-density digital systems and custom interface functions. The principal features of EP20K400BC652-2AA are 1,664 LABs/CLBs, 16,640 logic elements/cells, 212,992 total RAM bits, and 502 I/O. The 652-ball BGA package exposes a large number of user-facing connections, while the 2.375 V to 2.625 V supply range supports a defined legacy operating point. These characteristics suit designs where deterministic custom logic, internal storage, and broad parallel interfacing are required. The APEX-20K architecture integrates programmable logic-array blocks, routing resources, memory, and I/O structures into one configurable device. Configuration data determines the implemented Boolean functions, state-machine behavior, datapaths, and interface protocols. Engineering evaluation should therefore include configuration-file compatibility, power estimation, timing closure, pin assignment, and board-level signal integrity rather than relying only on nominal cell count. Typical uses include industrial control logic, telecommunications interface equipment, test and measurement platforms, and legacy digital systems. For example, the 502 I/O can support many parallel control or data lines, while the 212,992 RAM bits can implement buffering, lookup tables, or state-machine storage. The obsolete lifecycle status makes production support and long-term availability important procurement concerns. Designers should verify the exact manufacturer documentation, configuration flow, speed-grade interpretation, and PCB land pattern before reuse. Because the supplied data does not establish a pin-compatible modern successor, replacement should be treated as a board-level migration rather than an assumed direct substitution. This product record combines the verified electrical, structural, and lifecycle data with explicit unknowns, sourcing provenance, comparison guidance, and design cautions to support legacy-component assessment. Prices, where requested, are referenced as of 2026-09-08, and current inventory must be confirmed directly with the supplier.
EP20K400BC652-2V - APEX-20KC FPGA 400K Gates 652-BGA | Altera
The Altera EP20K400BC652-2V is a member of the APEX-20KC Field Programmable Gate Array (FPGA) family, integrating 400,000 system gates with 16,640 logic elements and 212,992 bits of embedded memory in a 652-ball FineLine BGA package. Built on a 0.22 µm CMOS process with MultiCore architecture that combines LUT logic, product-term logic, and embedded system blocks, this device operates at 200 MHz core frequency with 1.71V to 1.89V core supply and supports 2.5V I/O standards including LVDS. According to the Altera datasheet, the part carries the -2V speed grade and is rated for industrial temperature operation. An FPGA (Field Programmable Gate Array) is a semiconductor device built around an array of configurable logic blocks (CLBs), programmable interconnects, and I/O cells that allow designers to implement arbitrary digital circuits after fabrication. The APEX-20KC family specifically introduced system-on-a-programmable-chip (SOPC) integration by embedding dedicated memory and product-term logic alongside traditional look-up-table logic, occupying the hierarchy: FPGA → programmable logic device (PLD) → logic IC → integrated circuit → semiconductor. The 652-BGA FineLine package exposes up to 488 user I/O pins for high-bandwidth system integration. Key features of the EP20K400BC652-2V include 16,640 logic elements, 212,992 bits of embedded SRAM organized as ESBs (Embedded System Blocks), 502 maximum user I/O pins, support for LVDS, PCI, and other high-speed I/O standards, and in-system programmability via IEEE 1149.1 JTAG or passive serial configuration. The MultiCore architecture allows time-critical paths to be implemented in product-term logic while data-path operations benefit from LUT-based fabric, optimizing density and speed simultaneously. Architecturally, the device integrates embedded array blocks (EABs) for memory and complex arithmetic functions alongside logic array blocks (LABs) for general-purpose logic, with FastTrack interconnect routing signals across all four quadrants of the die. The 0.22 µm process and 1.8V core supply provide low-power operation relative to earlier 5V PLDs while supporting modern low-voltage I/O standards required by contemporary ASICs and microprocessors. Typical applications include high-speed telecommunications backplane interfaces, DSP co-processing pipelines, custom peripheral controllers, and network protocol acceleration. The large embedded memory and high I/O count make it well-suited for data buffering in communications equipment and for prototyping complex glue-logic designs before ASIC conversion. Design considerations for the EP20K400BC652-2V include thermal management via the 45 mm × 45 mm BGA substrate, multi-rail decoupling for the 1.8V core and 2.5V I/O supplies, and JTAG chain integration for boundary-scan testing. Engineers should consult Altera Quartus design tools for synthesis, place-and-route, and timing closure across the -2V speed grade corner. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, with cross-references sourced from Octopart, DigiKey, and authorized Altera distributors.
EP20K400BC652-2XV - 400K Gate APEX-20KC FPGA 652-BGA | Altera
The Altera EP20K400BC652-2XV is a member of the APEX-20KC Field Programmable Gate Array family, delivering 400,000 system gates, 16,640 logic elements, and 212,992 bits of embedded memory in a 652-ball BGA package. The -2 speed grade combined with the industrial temperature grade makes this device suitable for moderately fast logic designs in harsh thermal environments. An FPGA (Field Programmable Gate Array) is a type of programmable logic device that allows engineers to implement custom digital circuits through configuration rather than fixed silicon. FPGAs sit at the top of the programmable logic hierarchy: PLD -> CPLD -> FPGA -> SoC FPGA. The APEX-20KC family specifically introduced MultiCore architecture that integrates LUT logic, product-term logic, and embedded memory blocks on a single die - an early example of heterogeneous compute on a programmable fabric that enabled SOPC (System-on-a-Programmable-Chip) integration. Key features of the EP20K400BC652-2XV include 502 user I/O pins, 4 dedicated inputs, a 0.22 micrometer CMOS process, and an internal core voltage around 1.8V with 2.5V I/O support. Maximum toggle performance reaches 200 MHz according to distributor summaries, while pin-to-pin delay is specified at 3.1 ns in the PLD timing model. The MultiCore architecture lets designers mix register-intensive LUT logic with product-term logic for glue functions, which was unusual at the time of release. The device supports in-system programming via the IEEE 1149.1 JTAG interface and the Altera serial configuration scheme, allowing board-level configuration without removing the part. The 652-BGA (45x45 mm) package provides ample signal escape for the 502 I/O pins and supports surface-mount reflow assembly on standard FR-4 PCB substrates. Typical applications include telecommunications line cards, industrial motor control, military and aerospace ruggedized systems, medical imaging front-end pre-processing, and DSP co-processing in legacy test equipment. The wide I/O count supports parallel bus architectures such as PCI, HSTL, and LVDS interfaces that were common in late-1990s and early-2000s designs. When designing with this part, ensure the configuration mode (passive serial, JTAG, or parallel) is properly selected via MSEL pins at board power-up. The 652-BGA package requires X-ray inspection for solder joint verification since BGA balls are hidden beneath the package; plan PCB pad design with non-solder-mask-defined (NSMD) pads for best reliability. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design guidance not found in the standalone datasheet.
EP20K400BC652-3 - APEX 20K 400K Gate FPGA, BGA-652 | Intel
The Intel EP20K400BC652-3 is a member of the APEX 20K family of Complex Programmable Logic Devices (CPLDs) that combines FPGA-like logic density with PLD-style integration, packaged in a 652-ball BGA (BC652) housing 16,640 logic elements, 1,664 macro cells, and 502 user I/Os on a 2.5 V CMOS process. This -3 speed grade part targets designs where the legacy MultiCore architecture, embedded system-on-a-programmable-chip (SOPC) integration, and predictable deterministic timing of APEX 20K silicon remain in service for long-lifecycle industrial, telecom, and test-and-measurement platforms. A CPLD is a non-volatile, instant-on programmable logic device that uses a combination of AND/OR array planes and macro cells to implement combinatorial and registered logic, sitting in the taxonomy between simple PLDs (PAL/GAL) and full FPGAs. The APEX 20K family extends this concept by integrating embedded memory and a lookup-table based logic fabric on a single die, allowing system designers to consolidate glue logic, interface bridges, and small state machines on one programmable device without resorting to a discrete ASIC. Key features of the EP20K400BC652-3 include 16,640 logic elements, 212,992 bits of embedded system memory, 502 user I/Os across 8 I/O banks, 3.6 ns pin-to-pin propagation delay (3 ns internal per the BGA variant datasheet family), 2.5 V core supply, and a 0 to 85 C commercial operating temperature range. The device is configured via the legacy Altera ByteBlaster or MasterBlaster download cable and supports JTAG IEEE 1149.1 boundary-scan for in-system programming and verification. The MultiCore architecture integrates look-up-table (LUT) logic, product-term logic, and embedded memory blocks on one die, enabling designers to choose the optimal implementation for each function. I/O banks support multiple I/O standards including LVTTL, LVCMOS, PCI, and GTL+, allowing flexible mixed-voltage interfacing. The BGA-652 package provides a high ball count suitable for the device's 502 I/O pins plus dedicated clock, configuration, and supply balls. Typical applications for the EP20K400BC652-3 include telecom backplane glue logic, industrial control system bus interfaces, legacy PCI bridge implementations, test-and-measurement equipment controllers, and long-lifecycle avionics upgrades where the APEX 20K footprint is already designed in. The device is also well suited to prototyping and small-volume production where ASIC NRE costs are not justified. When designing with this device, confirm that the Quartus II design software (legacy versions 9.0 or earlier) is available in your tool chain, since the APEX 20K family is no longer supported by current Quartus Prime releases. Verify that your PCB layout accommodates the 1.27 mm pitch BGA-652 footprint with sufficient microvia and dog-bone fanout for reliable assembly. This page synthesizes distributor pricing, drop-in alternative part numbers, and design notes drawn from the APEX 20K datasheet family, providing information gain not found in a single manufacturer PDF.
EP20K400BC652-3V - 400K Gate APEX 20K FPGA, 652-BGA | Intel
The Intel (formerly Altera) EP20K400BC652-3V is a 400,000-gate APEX 20K family Field-Programmable Gate Array (FPGA) with 16,640 logic cells, 212,992 bits of embedded SRAM, and a maximum of 502 user I/Os, packaged in a 652-ball BGA (45 x 45 mm, 1.27 mm pitch). Built on a 0.22 µm CMOS process with a 2.5 V core supply, the device is rated for commercial 0 °C to 85 °C operation and supports LVDS I/O via the APEX 20KE device family extension. A Field-Programmable Gate Array is a semiconductor integrated circuit built from an array of configurable logic blocks (CLBs), programmable interconnect, and I/O cells, allowing designers to implement arbitrary digital logic that is re-programmable in the field. APEX 20K devices belong to the PLD -> FPGA -> programmable logic -> digital IC hierarchy and were the industry's first PLDs to integrate look-up table (LUT) logic, product-term logic, and embedded memory blocks on a single die — a system-on-a-programmable-chip (SOPC) integration. Key features include the QuadCore / MultiCore architecture that combines register-rich LUT logic for datapath and state-machine functions, product-term logic for fast control paths, and embedded memory (EABs/LUT-RAM) for buffers, FIFOs, and small register files. The -3V speed grade targets ~167 MHz internal operation. The high I/O count of 502 plus 4 dedicated inputs makes the device suitable for high-density bus bridges, telecom line cards, and parallel DSP datapaths. The architecture pairs a four-element LUT (LE) with an adjacent product-term (Macrocell) share, feeding a Logic Array Block (LAB) of ten LEs. Embedded Array Blocks (EABs) implement synchronous dual-port RAM up to 2,048 bits per block, totaling 212,992 RAM bits. Interconnect uses FastTrack continuous routing with predictable delay across the die, simplifying static timing closure. Typical applications include high-performance telecommunications line cards, parallel DSP co-processors, image-processing pipelines, bus-bridge ASIC prototyping, and industrial control designs where the APEX 20K family remains a long-lifecycle 5 V-tolerant I/O option. The V suffix denotes 2.5 V VCCINT operation; legacy 5 V designs can still use 3.3 V PCI-style I/O standards via banked VCCIO rails. When designing with this part, ensure banked VCCIO supplies match the I/O standard selected for each bank, and verify signal integrity at 167 MHz using IBIS models from the APEX 20K datasheet. Decoupling requires at least 12 x 0.1 µF plus 4 x 10 µF bulk capacitors placed around the BGA periphery. This page synthesizes the APEX 20K datasheet headline specs, distributor pricing, and drop-in alternatives within the EP20K400 family — engineering reference material not consolidated in any single distributor product page.
EP20K400BI652-2 - 400K Gate APEX-20KC FPGA, 652-BGA | Intel
The Intel (formerly Altera) EP20K400BI652-2 is a member of the APEX-20KC field-programmable gate array family, delivering 400,000 system gates with 16,640 logic elements, 212,992 bits of embedded memory, and 502 user I/O pins in a 652-ball BGA package. Fabricated on a 0.22 µm CMOS process, it operates from a 1.71 V to 1.89 V core supply and features a 2.5 V I/O reference, supporting LVDS I/O standards for high-speed differential signaling. The device includes 200 MHz MultiCore architecture integrating look-up table (LUT) logic, product-term logic, and embedded system blocks, with a typical pin-to-pin delay of 3.1 ns. A field-programmable gate array (FPGA) is a type of programmable logic device (PLD) that allows engineers to implement custom digital logic circuits through configuration memory rather than fixed silicon. Within the broader semiconductor hierarchy, FPGAs sit above application-specific integrated circuits (ASICs) in flexibility but below them in per-unit cost and power efficiency. The APEX-20KC family pioneered system-on-a-programmable-chip (SOPC) integration by combining LUT logic, product-term logic, and embedded memory blocks on a single die, enabling designers to build complete digital systems including processors, peripherals, and glue logic on one chip. Key differentiating features of the EP20K400BI652-2 include its 652-ball BGA package measuring 45 x 45 mm, support for LVDS I/O at data rates suitable for backplane and high-speed serial interfaces, and compatibility with the Quartus development toolchain. The device includes on-chip phase-locked loops (PLLs) for clock management, embedded memory blocks for FIFO and dual-port RAM applications, and dedicated multiplier circuitry for DSP functions. Typical applications for the EP20K400BI652-2 include telecommunications infrastructure, industrial automation controllers, military and aerospace signal processing, and high-speed data acquisition systems. Its combination of high logic density, generous embedded memory, and LVDS support makes it well suited for designs that previously required multiple discrete FPGAs or a custom ASIC. When designing with this device, engineers should plan for the 1.71 V to 1.89 V core supply rail using a low-noise LDO regulator, and observe BGA fanout and routing rules to maintain signal integrity on the 652-ball land pattern. The device is shipped in tray packaging suitable for prototype and low-volume production builds. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
EP20K400BI652-2V - 400K Gates APEX 20K FPGA 652-BGA | Intel / Altera
The Intel (formerly Altera) EP20K400BI652-2V is a member of the APEX 20K family of Field Programmable Gate Arrays (FPGAs), delivering 400,000 system gates with 16,640 logic elements and 212,992 bits of embedded memory in a 652-ball FineLine BGA package. The device provides 502 user I/O pins, operates from a 2.5 V core supply, and uses 0.22 μm CMOS process technology with a MultiCore architecture that integrates look-up table (LUT) logic, embedded system blocks (ESBs) for memory, and a high-speed interconnect fabric. The "-2V" speed grade indicates the industrial-grade temperature range and a 200 MHz internal performance target with approximately 2.5 ns propagation delay through the LUT-based logic elements. An FPGA is a semiconductor device built around an array of configurable logic blocks (CLBs), programmable interconnect, and I/O cells that can be reconfigured by the end user after manufacturing to implement arbitrary digital logic. FPGAs sit hierarchically between standard-cell ASICs (highest performance, highest NRE cost) and CPLDs (lower density, non-volatile), offering the optimal balance of high logic density, parallel processing, hardware-level determinism, and short time-to-market for mid-to-high complexity designs. The APEX 20K family was Altera's first multi-core architecture to combine LUT logic with embedded memory, foreshadowing the modern concept of a system-on-a-programmable-chip (SOPC). Key features include 502 user I/Os with multi-voltage I/O support, on-chip RAM/ROM via ESBs, dedicated clock networks with PLL support, JTAG-compliant boundary-scan testing, and in-system programmability through the IEEE 1149.1 (JTAG) interface or the passive serial configuration port. The device supports PCI, LVDS, SSTL, and GTL+ I/O standards when paired with appropriate external reference voltages. The 652-ball FineLine BGA package provides a compact 35 × 35 mm footprint suitable for high-density PCB designs. Typical applications include telecommunications infrastructure (DSLAM line cards, SONET/SDH framer interface blocks), high-speed data acquisition and DSP preprocessing pipelines, networking switches and routers, industrial control and machine vision backplanes, and embedded computing platforms that require hardware-accelerated co-processing. Designers typically target APEX 20K devices for designs that exceed the logic capacity of CPLDs but do not justify the NRE of an ASIC. When designing with this part, verify that your Quartus II (or legacy MAX+PLUS II) design environment version supports the EP20K400 device family, and confirm PCB layout accommodates the 1.27 mm BGA pitch with proper via-in-pad or dog-bone fanout. Power sequencing of the 2.5 V VCCINT and VCCIO rails should follow Altera's application note AN-117 to avoid hot-socket damage. Long-term supply is constrained because the APEX 20K family is now in the mature/legacy lifecycle phase.
EP20K400CB652C7ES - APEX 20KC 400K Gates FPGA | Altera
The Altera EP20K400CB652C7ES is a high-density programmable logic device from the APEX 20KC family, delivering 400,000 system gates and 16,640 logic elements in a 652-ball plastic/epoxy BGA package (S-PBGA-B652). Built on a 0.15 µm process technology, this device operates from a 1.8 V core supply and supports propagation delays as low as 1.4 ns with internal performance up to 375.94 MHz (maximum clock frequency 1666.6 MHz per marketing literature). It provides 484 I/O lines, 488 total inputs, and 484 dedicated outputs for high-bandwidth parallel interconnect. A Field-Programmable Gate Array (FPGA) is a semiconductor integrated circuit that can be reconfigured by the customer after manufacture to implement arbitrary digital logic. The APEX 20KC family belongs to the broader taxonomy: FPGA -> programmable logic device (PLD) -> logic IC -> integrated circuit -> semiconductor. APEX 20KC devices combine look-up table (LUT) based logic elements with embedded dual-port RAM blocks, providing a flexible platform for ASIC prototyping, glue logic, and high-speed datapath design. Key features include 488 inputs, 484 I/O lines, 16640 logic cells, 1.4 ns propagation delay, 375.94 MHz internal performance, 1.8 V core voltage, surface-mount 652-BGA packaging, and the C7 speed grade. The device supports in-system programmability via the IEEE 1149.1 (JTAG) interface and configuration via the Altera passive serial or passive parallel modes, allowing engineers to reflash the bitstream through ByteBlaster or MasterBlaster cables. The APEX 20KC architecture integrates multi-level interconnect (FastTrack) that connects logic elements and embedded array blocks (EABs) with predictable timing. Each logic element contains a 4-input LUT, a programmable register, and carry chain logic, while each EAB provides up to 2,048 bits of dual-port RAM, suitable for FIFO and small cache applications. Typical applications include telecommunications line cards, industrial automation controllers, ASIC prototyping, high-speed image processing pipelines, and DSP preprocessing front-ends. The high I/O count also suits memory-controller and bus-bridge designs. When designing with this legacy BGA, ensure 4-layer PCB stack-up with continuous ground plane for thermal dissipation, controlled-impedance traces for LVTTL/LVCMOS I/O, and JTAG test access at the board edge for boundary-scan compliance.
EP20K400CB652C7N - 400K-Gate APEX 20KC FPGA | Intel (Altera)
The Intel (formerly Altera) EP20K400CB652C7N is a high-density APEX 20KC family programmable logic device (PLD) fabricated on a 0.15-micron all-layer copper-metal process, integrating 400,000 system gates and 16,640 logic elements into a 652-ball plastic BGA (PBGA652) package. It belongs to Altera's MultiCore architecture that combines look-up table (LUT) logic with embedded memory blocks, delivering system-on-a-programmable-chip (SOPC) integration for high-performance, low-power designs. A Field-Programmable Gate Array (FPGA) is a reconfigurable semiconductor containing configurable logic blocks, programmable interconnects, and dedicated memory/DSP blocks. APEX 20KC devices sit within the broader taxonomy: PLD -> FPGA -> high-density SRAM-based FPGA -> APEX family -> APEX 20KC generation. This device is engineered for data-path and DSP-heavy designs that require embedded memory alongside general-purpose logic. Key features include 502 user I/Os, 1.48 ns pin-to-pin propagation delay (per Microchip USA listing), 2.5 ns internal logic delay (per DigChip specification), and core supply voltage of 1.8 V (VCCINT) with 2.5 V I/O supply (VCCIO). The device supports up to 375.94 MHz operation (per Jotrin listing) and is pin-compatible with the lower-cost APEX 20KE series while offering 25-35% faster design performance, thanks to the all-layer copper interconnect. Architecturally, the APEX 20KC combines MegaLAB structures containing multiple Logic Array Blocks (LABs), embedded system blocks (ESBs) for RAM/ROM/CAM, and FastTrack interconnect. The 0.15-micron copper process lowers interconnect resistance and capacitance versus aluminium metallization, reducing dynamic power and improving timing margins. Embedded memory and dedicated carry chains simplify DSP and datapath implementation. Typical applications include telecommunications infrastructure (line cards, protocol bridges), high-speed data acquisition systems, DSP co-processing, network switching equipment, and industrial imaging/medical imaging front-ends. The 502 user I/Os make it suitable for bus-intensive designs that require wide external memory or multiple parallel data streams. When designing with this part, note that configuration data must be loaded from external PROMs (EPC devices such as EPC2 or EPC16) at every power-up because the SRAM configuration cells are volatile. Designers must also respect the APEX 20KC I/O standard rules and provide proper decoupling across VCCINT and VCCIO planes.
EP20K400CB652C8N - APEX 20KC 400K Gates FPGA BGA-652 | Intel
The Intel (formerly Altera) EP20K400CB652C8N is a high-density APEX 20KC family FPGA delivering 400,000 system gates with 16,640 logic elements (LEs) in a 652-pin BGA package, fabricated on a 0.15-micron all-layer copper-metal process. The device operates from a nominal 1.8 V core supply (1.71 V to 1.89 V), supports 502 user I/O pins, and offers 488 programmable I/O lines with 484 inputs and 480 outputs for high-bandwidth parallel interfaces. An FPGA (Field-Programmable Gate Array) is a type of programmable logic device (PLD) that combines configurable logic blocks (LUTs), embedded memory, and programmable interconnect into a single semiconductor die. Within the broader taxonomy, the EP20K400CB652C8N sits as: FPGA -> programmable logic device (PLD) -> logic IC -> integrated circuit. The APEX 20KC family introduced MultiCore architecture integrating look-up table (LUT) logic with embedded system blocks, enabling system-on-a-programmable-chip (SOPC) integration supporting PCI Local Bus 2.2 at 33/66 MHz and external DDR SDRAM / ZBT SRAM memories. Key features include 25-35% higher design performance versus the APEX 20KE predecessor, pin-compatible migration from APEX 20KE devices, embedded memory blocks, and a high-performance low-power copper interconnect. The 652-ball BGA package supports up to 488 I/O lines enabling wide parallel buses, and the 2.5 ns propagation delay combined with 301.21 MHz internal operation delivers deterministic timing for high-throughput datapaths. The EP20K400CB652C8N implements a MultiCore architecture that combines four-input LUT logic with embedded system blocks (ESBs) usable as dual-port RAM, ROM, or content-addressable memory. The 0.15-micron copper process reduces interconnect resistance, improving timing closure and lowering power dissipation compared to aluminum-interconnect predecessors. Combined with 502 user I/Os, this architecture targets bandwidth-bound applications such as telecom line cards and custom processor peripherals. Typical applications include high-speed data acquisition front-ends, telecom protocol bridges (UTOPIA, POS-PHY), custom PCI bus interfaces, DDR SDRAM controllers, and legacy industrial control processors. The wide I/O count and embedded memory also make this part suitable for image processing pipelines and protocol-conversion ASIC replacements in long-lifecycle defense and medical equipment. When designing with this part, engineers should use the legacy Altera Quartus II design software (versions 9.0 and earlier support APEX 20KC) since the family predates Intel Quartus Prime. Verify JTAG chain configuration carefully because APEX 20KC uses 2.5 V I/O rather than modern 1.8/1.5 V standards. PCB layout must allocate ground-return vias beneath the BGA to maintain signal-integrity on the 488 I/O lines. This page synthesizes distributor pricing, same-package drop-in alternatives from the Site MPN list, comparison parameters, and practical design notes not aggregated on the manufacturer datasheet, helping engineers select and qualify long-lifecycle APEX 20KC designs.
EP20K400CB652C9 - APEX 20KC FPGA 400K Gates 652-BGA | Intel
The Intel (formerly Altera) EP20K400CB652C9 is a high-density APEX 20KC programmable logic device integrating 400,000 gates, 16,640 logic elements, and 488 user I/Os in a 652-pin BGA package. It is built on a 0.15 µm CMOS process with a 1.8 V core supply and operates at internal clock rates up to 250 MHz, targeting high-performance system-on-a-programmable-chip (SOPC) designs. The device is housed in a 45 × 45 mm BGA-652 with 1.27 mm ball pitch, suitable for high-density, multi-layer PCB designs. An FPGA (Field-Programmable Gate Array) is a semiconductor integrated circuit built from an array of configurable logic blocks (CLBs), programmable interconnect, and dedicated I/O and memory resources. FPGAs sit within the broader taxonomy of programmable logic devices (PLDs), alongside CPLDs (Complex PLDs) and SPLDs (Simple PLDs), and are widely used for digital signal processing, glue logic, prototyping, and ASIC replacement. The APEX 20K series introduced MultiCore™ architecture that combines look-up-table (LUT) logic with embedded memory blocks (ESBs), enabling single-chip implementation of logic, memory, and specialty functions. Key features of the EP20K400CB652C9 include 16,640 logic elements, embedded system blocks (ESBs) for on-chip memory, MultiVolt™ I/O support for interfacing with 1.8 V, 2.5 V, 3.3 V, and 5 V systems, and four phase-locked loops (PLLs) for clock management. Signal Integrity supports hot-socketing and PCI-compliant I/O, and the device is rated for commercial temperature operation (0 °C to 85 °C). Architecturally, the APEX 20K family uses a hierarchical MegaLAB™ structure that groups 16 Logic Array Blocks (LABs) plus one ESB, simplifying timing closure and providing predictable performance for designs above 100K gates. The 0.15 µm process and 1.8 V core reduce dynamic power relative to older APEX 20KE/20K devices operating at higher voltages. Typical applications include high-speed communication backplanes, telecommunications switching, DSP co-processing, system-on-chip prototyping, and PCI bridge designs where 488 user I/Os and high logic density are required. The wide I/O count also makes it suitable for memory-controller hubs and ASIC prototyping platforms. When designing with this device, use the legacy Altera Quartus II design software (or the Quartus Prime legacy support path) for synthesis, place-and-route, and timing closure; modern Quartus releases retain APEX 20K device support. Ensure PCB layout accommodates the 1.27 mm BGA pitch, with controlled-impedance routing and matched-length clocks for high-speed interfaces. This page synthesizes distributor pricing, drop-in BGA-652 alternatives within the APEX 20K family, and practical design notes not consolidated in the manufacturer datasheet alone.
EP20K400CB652C9ES - 400K Gates APEX 20KC FPGA | Intel (Altera)
The Intel (formerly Altera) EP20K400CB652C9ES is a high-density APEX 20KC family FPGA delivering 400,000 system gates and 16,640 logic elements in a 652-ball BGA package. Built on a 0.15 µm CMOS process, it operates from a 1.8 V core supply and is specified for commercial temperature grades with a maximum internal frequency of 250 MHz. An FPGA (Field-Programmable Gate Array) is a semiconductor IC containing an array of configurable logic blocks (CLBs), programmable interconnects, and I/O cells that engineers can program in-circuit to implement arbitrary digital logic. FPGAs sit in the broader taxonomy of programmable logic devices (PLDs) and are commonly positioned between discrete logic ICs and fixed-function ASICs in terms of flexibility, density, and per-unit cost. The APEX 20KC family specifically targets high-performance, high-bandwidth designs that combine lookup-table (LUT) logic with embedded memory and LVDS-capable I/O. Key features of the EP20K400CB652C9ES include 212,992 bits of embedded memory, 488 user I/Os, support for multiple I/O standards including LVDS, and in-system programmability via the IEEE 1149.1 JTAG interface. The device integrates a four-phase PLL for clock management and provides hot-socketing capability for line-card applications. Compared with the older APEX 20K family, the 20KC variants offer roughly 2x density and improved signal integrity at high toggle rates. The EP20K400CB652C9ES is widely used in telecommunications line cards, data-acquisition and signal-processing front ends, industrial control, and high-speed prototyping. Its combination of high gate count and LVDS I/O makes it especially well suited for parallel bus bridging, serializer/deserializer (SerDes) glue logic, and custom coprocessors in imaging and test equipment. Designers should note that the EP20K400CB652C9ES is a mature, second-generation APEX part and is now considered legacy hardware. Altera's Quartus II design tool (version 5.1 or earlier) is required for compilation, and a 1.8 V core regulator with proper decoupling is mandatory for stable operation. This page synthesizes distributor stock data, drop-in pin-compatible alternatives, and practical design notes for engineers maintaining or replicating legacy APEX 20KC designs - information that is not consolidated in any single source.
EP20K400CB652C9N - APEX 20KC FPGA 400K Gates BGA-652 | Intel
The Intel (formerly Altera) EP20K400CB652C9N is a high-density programmable logic device from the APEX 20KC family, integrating 400,000 system gates, 16,640 logic elements, and 250,000 bits of embedded memory in a 652-ball BGA package. It is fabricated on a 0.15 µm all-layer copper-metal CMOS process and pairs MultiCore architecture (LUT-based logic plus embedded system blocks) with up to 502 user I/Os, making it one of the densest single-chip SOPC (system-on-a-programmable-chip) platforms of its generation. What is an FPGA? An FPGA (Field-Programmable Gate Array) is a semiconductor IC containing configurable logic blocks, routing channels, and I/O cells that the user programs after manufacture, implementing arbitrary digital circuits without an ASIC tape-out. APEX 20KC is the high-density copper-interconnect revision of the APEX 20K family; it sits in the taxonomy: programmable logic device (PLD) -> complex PLD (CPLD) / FPGA -> SOPC-class FPGA. APEX 20KC devices are pin-compatible with APEX 20KE predecessors and target embedded compute, telecom, and DSP front-end designs where integration and I/O density matter more than absolute clock rate. Key features include a 250 MHz internal performance, 2 ns propagation delay, 488 I/O pins (502 user pins per datasheet variant), a MultiCore architecture combining lookup-table logic with embedded memory blocks, and high-performance low-power copper interconnect. The part supports in-system programmability through IEEE 1149.1 JTAG and is delivered in a 1.8 V core, 2.5 V I/O supply configuration. Architecturally, EP20K400CB652C9N combines MegaLAB structures (16 logic elements per LAB, grouped into 26 LABs per MegaLAB) with embedded system blocks for true-dual-port RAM, content-addressable memory, ROM, and FIFO functions. The copper-interconnect 0.15 µm process improves performance by 25-35% over APEX 20KE devices at comparable power, enabling 250 MHz system clock designs. Typical applications include telecommunications line cards, DSP data-path acceleration, high-speed image processing, network routers and switches, and embedded control systems. The 652-ball BGA footprint suits multi-layer PCB designs requiring maximum logic density on a single board. When designing with this device, observe strict power-plane decoupling on each VCCINT/VCCIO pin pair, respect the JTAG chain topology, and use the Quartus II (or MAX+PLUS II legacy) tool flow. Note that APEX 20KC is a mature node - confirm long-term availability before new production designs. This page synthesizes distributor pricing, same-brand APEX 20KC drop-in alternatives, and practical design notes not consolidated on any single manufacturer or distributor page.
EP20K400CB652I7 - 400K Gate APEX 20KC FPGA | Altera | BGA-652
The Intel (formerly Altera) EP20K400CB652I7 is a high-density field-programmable gate array (FPGA) from the APEX 20KC family, integrating 400,000 system gates and 16,640 logic elements in a 652-ball fine-pitch BGA package. The device uses a 0.15 µm CMOS process, supports a 1.8 V core supply with 1.8/3.3 V I/O, and operates up to 375.94 MHz on internal logic. Per the verified datasheet summary, it is housed in a square BGA-652 with JESD-30 code S-PBGA-B652. An FPGA (Field-Programmable Gate Array) is a class of programmable logic device that lets designers configure arbitrary digital logic through SRAM-based configuration memory. FPGAs sit in the broader taxonomy of digital ICs > programmable logic > programmable logic device (PLD) > FPGA, and they compete with CPLDs and structured ASICs. The APEX 20KC family combines look-up-table (LUT)-based logic with embedded memory blocks (ESBs) and a MultiCore interconnect, enabling system-on-a-chip integration for glue logic, bus interfaces, DSP preprocessing, and high-speed I/O bridging. Key features of the EP20K400CB652I7 include: 16,640 logic elements, 400K typical gates, embedded system blocks (ESBs) configurable as dual-port RAM/FIFO/CAM, multi-standard I/O support, dedicated clock management circuitry, and JTAG-based in-system programmability (ISP). The 'I7' speed grade and 'I' industrial temperature suffix make it suitable for -40 °C to +100 °C operation, while the BGA-652 footprint delivers high signal density for data-path-heavy designs. Architecturally, the APEX 20KC family introduced a hierarchical MegaLAB structure grouping 16 Logic Elements (LEs) with one ESB, providing predictable timing and efficient silicon utilization for register-rich designs. The MultiCore interconnect allows deterministic routing across the die, simplifying static timing closure compared with older symmetric-array FPGAs. Typical applications include telecommunications line cards, industrial control and instrumentation, military/aerospace signal processing, high-speed data acquisition front-ends, and legacy replacement of ASICs where NRE cost is prohibitive. The 652-ball BGA also supports prototyping for ASIC emulation. When designing with this part, allocate sufficient PCB layers (>=6) for BGA fan-out and controlled-impedance routing; verify that your Quartus/MAX+PLUS II toolchain still supports the device, as the APEX 20KC family reached end-of-life and is now serviced through Intel's FPGA legacy support programs rather than active new design-ins. This page synthesizes distributor stock data, cross-validated BGA-652 footprint alternatives, lifecycle status, and legacy replacement notes not found in the original datasheet PDF.
EP20K400CB652I8ES - 400K Gates APEX-20KC FPGA | Intel / Altera
The Intel (formerly Altera) EP20K400CB652I8ES is a high-performance APEX-20KC FPGA delivering 400K system gates, 16640 logic elements, and 488 programmable I/O pins in a 652-ball BGA package. Built on a 0.15 µm CMOS process, this device operates from a 1.8 V core supply and supports the APEX 20KC family architecture, which combines Look-Up Table (LUT) logic with embedded CAM (Content-Addressable Memory) blocks for high-density data-path applications. An FPGA (Field-Programmable Gate Array) is a reprogrammable integrated circuit whose logic function is defined after manufacturing through a configuration bitstream, sitting in the broader taxonomy of programmable logic devices (PLD -> CPLD/FPGA -> SRAM-based FPGA). APEX-20KC devices extend basic FPGA fabric with MultiCore interconnect and embedded CAM, enabling applications such as ATM switching, PCI bridging, and high-speed data routing that previously required discrete ASICs. Key features of the EP20K400CB652I8ES include 16640 logic elements organized into 1664 Logic Array Blocks (LABs), 212,992 bits of embedded SRAM (approximately 26 KB distributed across the fabric), 488 user I/O pins, and an industrial-grade temperature range of -40 °C to +100 °C. The device supports JTAG-based configuration via the IEEE 1149.1 boundary-scan interface and uses the APEX MultiCore interconnect for predictable timing across high-fanout nets. The APEX-20KC architecture combines a fine-grained LUT fabric with MegaLAB columns, allowing integration of wide datapath functions alongside random logic. With 488 user I/Os available on the CB652 BGA, designers can support multiple parallel bus interfaces (e.g., 64-bit PCI at 66 MHz plus a separate memory channel) on a single device. The device family supports densities from 100K to 1500K gates, with the EP20K400 sitting in the upper-middle range. Typical applications for the EP20K400CB652I8ES include telecommunications line cards, ATM packet processors, custom PCI/PCI-X bus bridges, network switches and routers, digital signal processing front-ends, and industrial control systems. Its high I/O count makes it especially suitable for multi-protocol interface bridging and parallel data-acquisition systems. When designing with this device, observe Altera (now Intel PSG) configuration guidelines: drive nCONFIG low to initiate configuration, use a 100 µF decoupling cap array distributed across the I/O banks, and respect the simultaneous-switching output (SSO) budget of the 652-ball BGA. This page synthesizes distributor inventory, drop-in speed/pinout variants, and packaging options not present in the original 652-BGA datasheet excerpt.
EP20K400CB652I8N - 400K Gate APEX 20KC FPGA BGA-652 | Altera
The Altera (now Intel) EP20K400CB652I8N is a member of the APEX 20KC family of FPGAs, delivering up to 400,000 system gates and 16,640 logic elements in a 652-pin BGA package. It is fabricated on a 0.15 µm CMOS process and operates from a 1.8 V core supply with multi-voltage I/O support. The device supports a maximum internal frequency of 301.21 MHz, making it suitable for high-performance logic, DSP, and data-path designs. A Field-Programmable Gate Array (FPGA) is a semiconductor IC containing an array of configurable logic blocks (CLBs), programmable interconnect, and dedicated hard IP such as block RAM, PLLs, and I/O serdes. FPGAs sit in the broader taxonomy: FPGA -> programmable logic device (PLD) -> logic IC -> integrated circuit -> semiconductor. The APEX 20KC family specifically targets high-density, system-on-a-chip (SoC) integration by combining LUT-based logic with embedded memory and a fast MultiCore interconnect. Key features include 16,640 logic elements, 1664 macrocells, 488 user I/O pins, embedded system blocks (ESBs) for dual-port RAM, ROM, or CAM, and four phase-locked loops (PLLs) for clock management. The device supports LVTTL, LVCMOS, SSTL, HSTL, and differential I/O standards through its MultiVolt I/O architecture, allowing 1.5 V, 1.8 V, 2.5 V, and 3.3 V interfacing from a single 1.8 V core. Architecturally, the APEX 20KC uses a four-input LUT combined with adjacent ESBs that can be configured as 4 Kbit dual-port RAM blocks. The MultiCore interconnect delivers predictable timing across the device, while the four PLLs support frequency synthesis, phase shifting, and clock de-skew across up to eight clock domains per quadrant. Typical applications include telecom line cards, high-speed data acquisition, ASIC prototyping, glue logic for microprocessor-based systems, and industrial control. Designers use the Altera Quartus II design suite (version supporting APEX 20KC) to compile and configure the device via JTAG or passive serial. When designing with this part, ensure proper decoupling on each power pin pair, place the JTAG header within 50 mm of the TDI/TMS pins, and use controlled-impedance traces on high-speed LVDS pairs. The 1.8 V core and selectable I/O voltage require careful power-sequencing to avoid latch-up during board bring-up. This page synthesizes distributor pricing, drop-in alternative cross-references, and practical PCB design notes for sourcing and second-sourcing the EP20K400CB652I8N - information not aggregated on any single distributor page.
EP20K400CB652I9 - APEX 20KC 400K Gates FPGA | Intel / Altera
The Intel (formerly Altera) EP20K400CB652I9 is a high-density APEX 20KC family FPGA delivering 400,000 system gates and 16,640 logic elements in a 652-pin LBGA (Ball Grid Array) package. Built on a 0.15 um CMOS process and operating at 1.8 V core with multi-voltage I/O support, this industrial-temperature device (-40C to +85C, indicated by the 'I' suffix) provides up to 488 user I/O pins for high-bandwidth parallel interfaces. According to manufacturer catalog data, the part is specified for a maximum clock frequency of 250 MHz, making it suitable for telecommunications, video processing, and embedded control applications. Background Knowledge: An FPGA (Field-Programmable Gate Array) is a type of programmable logic device (PLD) that allows hardware designers to implement custom digital circuits after manufacturing. FPGAs belong to the broader category of programmable logic devices, which sit hierarchically under integrated circuits and semiconductors. The APEX 20KC family is a second-generation APEX architecture from Altera that combines logic elements, embedded system blocks (ESBs) for memory and dual-port RAM, and high-speed I/O elements on a single die. The 'K' suffix denotes enhanced multi-core interconnect and on-chip memory resources compared with the original APEX 20K family. Key features include 16,640 logic elements, 212,992 bits of embedded memory distributed across embedded system blocks, and support for LVTTL, LVCMOS, PCI, SSTL, and GTL+ I/O standards. The 652-ball LBGA package has a seated height of 1.63 mm and supports high-density board layouts with controlled-impedance signal routing. The 'I9' speed grade provides a balance between cost and performance for industrial-grade designs, with -1 being the fastest and -3 the slowest within the same speed-grade family. Technical depth: the APEX 20KC architecture combines four-input look-up tables (LUTs) with embedded system blocks that can be configured as dual-port RAM, single-port RAM, ROM, or content-addressable memory. The MultiCore interconnect uses a hierarchical row/column structure that delivers predictable timing closure for high-utilization designs. The 1.8 V core reduces dynamic power versus 2.5 V predecessors, while I/O banks operate independently from 1.5 V to 3.3 V for mixed-voltage system integration. Typical applications include digital signal processing front-ends, telecommunications channel cards, video broadcast equipment, and embedded processor peripherals. The 488 I/O count makes the part particularly attractive for parallel bus architectures and high-throughput memory interfaces. Design consideration: when laying out the LBGA-652 footprint, designers should allocate a minimum of six PCB layers with dedicated power and ground planes to suppress simultaneous-switching noise on the 488 I/O banks. Decoupling must include both bulk and high-frequency capacitors placed within 5 mm of each power-ball cluster. This page synthesizes distributor availability, drop-in same-package alternatives from the same Altera/Intel APEX 20K family, and practical design notes that go beyond the manufacturer datasheet.
EP20K400CF672C-7 - 400K Gate APEX 20KC FPGA, 672-BGA | Altera
The Altera EP20K400CF672C-7 is a 400,000-gate APEX 20KC Field Programmable Gate Array (FPGA) with 16,640 logic elements, 212,992 bits of embedded memory, and 488 user I/O pins, housed in a 672-pin FineLine BGA package. Built on a 0.15 µm CMOS process and operating from a 1.8 V core supply, it targets speed grade -7 (commercial) and supports PCI 2.2 at 33/66 MHz with 32/64-bit width for high-performance bus interfacing. The device includes 4 PLLs, MultiVolt I/O supporting 1.8 V/2.5 V/3.3 V interfacing, and embedded CAM blocks for high-speed address lookup, while LVDS support enables gigabit-rate serial links. An FPGA (Field Programmable Gate Array) is a reprogrammable digital logic device whose logic cells, routing, and I/O are configured by a configuration bitstream rather than hardwired. APEX 20KC belongs to the APEX 20K family (1999-2003 generation), which occupies the high-density end of the SRAM-based FPGA taxonomy: logic cell array -> PLD/FPGA -> programmable logic -> digital IC -> semiconductor. The 20KC variant added 2.5 V PCI compliance and a faster interconnect fabric versus 20K, while retaining the same Quartus-compatible design flow and Look-Up Table (LUT)-based Logic Element (LE) architecture. Key specifications include 16,640 logic elements, 212,992 RAM bits, 488 maximum user I/O pins, 4 phase-locked loops, and 1.8 V core VCCINT with MultiVolt I/O supporting 1.8 V, 2.5 V, and 3.3 V interfaces. The 672-BGA package exposes 8 dedicated clock pins, 8 dedicated inputs, and a JTAG boundary-scan port. APEX 20KC devices are configured via passive serial (PS), passive parallel asynchronous (PPA), passive parallel synchronous (PPS), or JTAG modes using an EPC configuration device or a microprocessor. Hot-socketing and Power-On-Reset (POR) sequencing are supported. Typical applications span telecommunication line cards, PCI 64-bit/66 MHz bridge designs, high-speed DSP co-processing, network packet classification using CAM, and legacy industrial control where MultiVolt I/O bridges 5 V system logic to 3.3 V or 2.5 V PHYs. The part is rated for commercial temperature (0 °C to +85 °C junction). Please refer to the manufacturer datasheet for full electrical characteristics and AC timing. When designing with EP20K400CF672C-7, observe MultiVolt I/O bank power sequencing: VCCIO banks must ramp before or simultaneously with VCCINT to avoid latch-up; otherwise POR may be indeterminate. Reserve at least 4 user I/O for the JTAG chain if in-system programmability is required, and verify the 672-BGA escape allows adequate fan-out for the 488 signal pins. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes beyond the manufacturer datasheet, enabling faster design-in decisions for engineers working with this legacy Altera / Intel FPGA family.
EP20K400CF672C-7ES - 400K Gates APEX 20KC FPGA | Altera | 672-BGA
The Altera EP20K400CF672C-7ES is a member of the APEX 20KC family of field-programmable gate arrays, integrating 400,000 system gates, 16,640 logic elements, and 212,992 bits of embedded memory in a 672-ball FineLine BGA package. Speed grade -7 (commercial, 0 to 85 C) is offered here, with a maximum internal clock frequency around 375 MHz, four PLLs, and 488 user I/O pins. The device operates from a 1.8 V core supply and is built on a 0.15 um CMOS process. An FPGA (Field-Programmable Gate Array) is a semiconductor integrated circuit that can be configured by the customer after manufacturing to implement arbitrary digital logic. Within the programmable-logic hierarchy, FPGAs sit above CPLDs and gate arrays in density and below ASICs in per-unit cost, while delivering reconfigurable logic, embedded memory blocks (here, embedded array blocks / EABs), and DSP-friendly carry chains. The APEX 20KC family introduced 2.5 V LVDS I/O support, embedded CAM blocks, and a MultiCore architecture combining logic elements (LEs) with embedded array blocks (EABs) for true dual-port RAM and product-term logic. Key features include in-system programmability via Altera EPC16 / EPC8 / EPC4 / EPC2 / EPC1 configuration devices, four phase-locked loops for clock multiplication and skew management, 32 Kbytes of distributed RAM, and built-in boundary-scan (IEEE 1149.1 JTAG). The FineLine BGA package at 1.00 mm pitch supports high-density board layouts while enabling fine-pitch probing and rework. Industrial temperature variants and faster speed grades (up to -8) are also available within the same EP20K400 silicon family. The APEX 20KC architecture combines a fine-grained logic-element fabric with coarse-grained embedded array blocks (each EAB providing up to 2 Kbits of RAM or 16 product-term logic blocks). This dual-grain architecture makes EP20K400 well suited to datapath-heavy designs where the EABs can be configured as FIFO, dual-port RAM, or ROM, while LEs handle the surrounding state machines and glue logic. PLLs allow designers to multiply, divide, and phase-shift incoming clocks; JTAG support simplifies board-level testing. Typical applications include telecommunication line cards, ASIC prototyping, high-speed DSP datapath front ends, video and image processing pipelines, industrial control and factory automation, and pre-silicon validation of SoC designs. The 488 user I/Os are particularly useful where many buses, memory interfaces, or serializer / deserializer channels need to be brought off-chip simultaneously. When designing with this part, place decoupling capacitors as close as possible to every VCCINT and VCCIO pin pair, and follow Altera's recommended 4-layer PCB stack-up to keep the 1.00 mm-pitch BGA routable. Use the Quartus II (or MAX+PLUS II) toolchain with an Altera programming cable or EPC configuration device to load the bitstream. This page consolidates distributor pricing, same-family drop-in alternatives (speed-grade, package, and logic-density variants), and practical design notes that complement - rather than duplicate - the official Altera datasheet.
EP20K400CF672C-8 - APEX 20K 400K Gates FPGA, 672-BGA | Altera
The Altera EP20K400CF672C-8 is a high-density programmable logic device (PLD) from the APEX 20K family, built on a 0.15 µm all-layer copper-metal fabrication process and housed in a 672-ball FineLine BGA package (PBGA-672, 27 x 27 mm, 1.0 mm pitch). It integrates 16,640 logic elements / 1,664 Macros and provides 488 user I/O, 1.78 ns pin-to-pin delay, and 1.8 V core supply (range 1.71 V to 1.89 V) for high-performance, low-power system designs. An FPGA (Field-Programmable Gate Array) is a programmable logic device category sitting under the broader hierarchy: programmable logic -> logic IC -> integrated circuit -> semiconductor. APEX 20K devices belong to the MultiCore architecture family, integrating look-up table (LUT) logic with embedded system blocks (ESBs) that combine dedicated RAM, ROM, and content-addressable memory functions on a single die. They are pin-compatible with the APEX 20KE series and deliver 25 to 35 percent faster design performance than APEX 20KE predecessors. Key features of the EP20K400CF672C-8 include 400,000 typical gates, 1664 Macros, 488 I/O lines, 1.78 ns worst-case pin-to-pin combinatorial delay (speed grade -8), and 1.8 V core supply with commercial (C) temperature grade (0 °C to 85 °C). The device supports in-system programmability via the IEEE 1149.1 JTAG interface, configuration via passive serial, passive parallel asynchronous, and passive parallel synchronous modes, and is supported by the Altera Quartus and MAX+PLUS II design suites. Architecturally, the MultiCore structure combines distributed LUT-based logic with columnar embedded system blocks. Each ESB can be configured as a 4096-bit RAM block, a ROM, or a CAM, providing flexible on-chip memory for high-bandwidth datapaths without sacrificing logic resources. The high copper interconnect metal stack reduces RC delay, enabling the 1.78 ns propagation performance at the -8 speed grade. Typical applications for the EP20K400CF672C-8 include telecom line-card interface logic, high-speed DSP co-processing glue logic, industrial imaging preprocessing pipelines, and ASIC prototyping where 400K gates of programmable logic is required on a single die. Its 488 I/O make it well suited to parallel bus aggregation and data-format conversion roles. When designing with this device, observe that the EP20K400CF672C-8 is now in an obsolete / last-time-buy lifecycle per industry catalogs; designers of new products should evaluate modern Cyclone or Stratix equivalents. Always observe JTAG configuration timing and decoupling requirements in the manufacturer datasheet. This page synthesizes distributor pricing, same-family drop-in alternatives from the Altera APEX 20K catalog, lifecycle status, and practical design guidance not consolidated in any single distributor product page.
EP20K400CF672C7 - APEX 20KC FPGA, 400K Gates, 672-BGA | Intel
The Intel (formerly Altera) EP20K400CF672C7 is a member of the APEX 20KC family of Field-Programmable Gate Arrays, delivering up to 400,000 system gates in a 672-ball FineLine BGA package. Built on a 0.15 µm CMOS process with 1.8 V core supply, the device integrates 16,640 logic elements (LEs), 212,992 bits of embedded memory, and 488 user I/O pins for high-density programmable logic designs. A Field-Programmable Gate Array (FPGA) is a semiconductor device built around an array of configurable logic blocks (CLBs), embedded memory, programmable interconnect, and I/O cells, all controlled by a user-defined bitstream. In the system hierarchy, FPGAs sit between general-purpose processors and fixed-function ASICs - offering hardware-level parallelism and design flexibility while consuming more power than purpose-built ASICs. The APEX 20KC family further extends this concept with MultiCore™ architecture combining look-up-table (LUT) logic with embedded system blocks (ESBs) that double as RAM, ROM, or content-addressable memory. Key features of the EP20K400CF672C7 include 488 maximum user I/Os, 212,992 RAM bits, 2.5 ns pin-to-pin propagation delay, and up to 375.94 MHz internal operation. The 672-ball FineLine BGA package supports high-speed signal integrity for parallel buses, LVDS, and DDR memory interfaces, while the speed grade "-7" represents the mid-tier (commercial 0 °C to 85 °C) timing bin. The device also integrates 4 phase-locked loops (PLLs) for clock management and supports multi-voltage I/O standards including LVTTL, LVCMOS, PCI, SSTL, and LVDS. The APEX 20KC architecture combines a fine-grained LUT fabric with coarse-grained embedded system blocks (ESBs), giving designers a flexible mix of distributed and block memory alongside high-speed parallel logic. This MultiCore™ approach was Altera's first SOPC-integrated PLD family, enabling single-chip processor-plus-logic subsystems using soft cores such as Nios®, Excalibur, or third-party IP. The 0.15 µm process technology balances density and power efficiency for the era's leading-edge telecom, networking, and DSP applications. Typical applications include high-speed telecommunications backplanes, ASIC prototyping, DSP co-processors, parallel data acquisition, and bus-interface bridging. Designers choose the EP20K400CF672C7 when designs need hundreds of thousands of gates with abundant block RAM, sub-3 ns tPD, and abundant user I/O for parallel interfaces. When designing with this FPGA, budget power carefully: a fully utilized EP20K400CF672C7 can exceed 3 W dynamic dissipation, requiring controlled-impedance PCB routing, solid ground/power planes, and thermal management of the BGA substrate. Verify Quartus® II (or Max+Plus® II legacy) bitstream compatibility before board bring-up. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes not found in the APEX 20KC datasheet - giving engineers a single reference for sourcing, replacement selection, and design-in guidance for legacy Altera APEX platforms.