EP2A40F672C6N
EP2A40F672C6N - APEX II FPGA 40K LE FBGA-672 | Intel
The Intel EP2A40F672C6N is a member of the APEX II programmable logic device family, integrating approximately 40,000 logic elements with up to 1,125,000 system gates in a 672-ball FineLine BGA package. As a high-density SRAM-based FPGA, it combines lookup-table based logic, embedded system blocks (ESBs) for dual-port RAM, ROM, and CAM, and dedicated high-speed interconnect (FastTrack) routing. The device operates from a 1.5 V core supply with multiple I/O bank voltages supporting mixed-voltage interfacing across 5 V, 3.3 V, 2.5 V, and 1.8 V standards.
An FPGA (Field Programmable Gate Array) is a type of programmable logic device that allows designers to implement arbitrary digital logic through configuration of on-chip lookup tables, embedded memory blocks, and routing resources. APEX II sits in the hierarchy between low-density CPLDs and high-end SoC FPGAs, providing high logic density for data-path, DSP, and multi-protocol bridging applications. The EP2A40 is the largest member of the APEX II family, doubling the logic capacity of the EP2A25 while maintaining the same Quartus II design flow.
Key features include MultiVolt I/O support for direct interfacing to 1.8 V, 2.5 V, 3.3 V, and 5 V buses without level shifters, dedicated clock management with PLL-based clock tree synthesis, and high-bandwidth embedded memory suitable for FIFO, dual-port RAM, and content-addressable memory. The FastTrack interconnect provides predictable timing across the entire device, simplifying timing closure for wide data buses. The 672-ball FineLine BGA package exposes the maximum number of user I/O for the EP2A40 die, making it suitable for high-pin-count interface aggregation.
The APEX II architecture combines four-input look-up tables grouped into Logic Array Blocks (LABs), each LAB containing ten LEs plus local interconnect. ESBs (Embedded System Blocks) provide 2 Kbits of dual-port RAM each and can be cascaded to form wider or deeper memories. The device supports LVTTL, LVCMOS, PCI, GTL+, SSTL, and HSTL I/O standards, with per-pin slew-rate and drive-strength control. Configuration is supported via passive serial, passive parallel synchronous, passive parallel asynchronous, and JTAG modes.
Typical applications include high-speed data-path bridging, multi-channel protocol conversion (e.g., SPI to parallel), glue-logic aggregation in ASIC prototypes, telecom line-card backplane interfacing, and industrial imaging pre-processing. The large logic capacity supports soft-core processor implementations such as the Nios embedded processor within the Quartus II tool flow. The wide I/O count enables direct connection to DDR-style memory buses and parallel ADC/DAC interfaces.
Designers should verify availability before starting new designs because APEX II is an older-generation family that has been superseded by Cyclone, Arria, and Stratix families. Existing designs typically rely on the Quartus II v5.0 or earlier toolchain for synthesis, place-and-route, and timing analysis. Power estimation should include both static and dynamic components, with thermal management important at high toggle rates.
This page synthesizes distributor stock signals, drop-in same-package variants within the APEX II family, and practical design notes not found in a single manufacturer document.
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