EP20K600CB672C8
EP20K600CB672C8 - APEX 20KC FPGA 600K Gates 672-FBGA | Intel / Altera
The Intel (formerly Altera) EP20K600CB672C8 is a member of the APEX 20KC programmable logic family, delivering 600,000 system gates, 24,320 logic elements, and 311,296 bits of embedded RAM in a 672-ball FineLine BGA package. The APEX 20KC family uses a 0.15 µm CMOS process with a 1.8 V core supply and supports MultiCore architecture that combines look-up table (LUT) logic with embedded memory blocks, allowing designers to optimize each region of the die for either combinational logic or storage. The CB672 suffix denotes the 672-ball FCBGA (27 x 27 mm) package, while the C8 speed grade specifies an internal core speed of approximately 301 MHz.
A Field-Programmable Gate Array (FPGA) is a semiconductor integrated circuit composed of configurable logic blocks (CLBs), programmable interconnects, and dedicated silicon resources such as block RAM, DSP blocks, and high-speed transceivers. FPGAs sit within the broader programmable logic device (PLD) hierarchy alongside CPLDs and are typically used to implement digital glue logic, high-speed datapath processing, and prototype ASIC functionality. The APEX 20KC series sits between older APEX 20K and later Stratix/Arria families and is recognized as a high-density, low-power solution for telecom, networking, and DSP applications of the late 1990s and early 2000s.
Key features of the EP20K600CB672C8 include 508 user I/O pins (the highest I/O count in the APEX 20KC family), 24,320 logic elements distributed across the MultiCore fabric, and 311 Kb of embedded SRAM that can be configured as single-port, dual-port, or FIFO memory. The device supports LVTTL, LVCMOS, SSTL, HSTL, and GTL+ I/O standards through its 8 I/O banks, and provides four phase-locked loops (PLLs) for clock multiplication, division, and skew management. Hot-socketing capability and 3.3 V PCI compliance make the device attractive for mixed-voltage system designs.
Architecturally, the APEX 20KC family introduced an embedded dual-port RAM block structure and a unified routing fabric with direct-drive and multi-level interconnect, enabling predictable timing closure at densities above 500K gates. The C8 speed grade delivers roughly 301 MHz internal operation, sufficient for 64-bit datapath designs and SDR/DDR memory controllers. Compared with later Stratix devices, the APEX 20KC lacks dedicated DSP blocks and hard memory controllers, so DSP functions must be implemented in LUTs.
Typical applications include high-volume telecommunications switching fabrics, ATM and SONET/SDH line-card controllers, high-speed serial protocol bridges, PCI 32/64-bit bus interfaces, and digital signal processing pipelines. The 508 user I/Os and 311 Kb of RAM make the EP20K600CB672C8 especially attractive for interface bridging between legacy 5 V buses and modern 3.3 V cores. Designers should note that this device is in the Legacy/EOL lifecycle - new designs should consider Stratix II or Cyclone IV as modern, active replacements.
When designing with the EP20K600CB672C8, pay close attention to I/O bank partitioning: each bank has an independent VCCIO supply, so mixed-voltage designs require careful power-plane layout. Use Altera Quartus II 4.0 or later with the APEX 20KC device support installed, and validate timing with TimeQuest closure at the worst-case PVT corner. Decoupling requires at least 0.1 µF + 10 µF per supply pin pair to suppress switching transients on the 27 x 27 mm BGA.
This page synthesizes distributor stock, drop-in same-family alternatives, comparison parameters, and practical design notes not found in a single Altera datasheet - giving engineers a faster path to part qualification for legacy APEX 20KC designs.
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