Intel

EPF8820ARC-4N - FLEX 8000 FPGA 672-Cell 5V | Intel (Altera)

MPN: EPF8820ARC-4N ✗ Akhir Hidup

5 V Vdss 208-pin RQFP (Plastic Quad Flat Pack with exposed pad) Package 125 MHz Speed

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EPF8820ARC-4N Ringkasan

The Intel (formerly Altera) EPF8820ARC-4N is a member of the FLEX 8000 family of CMOS SRAM-based Field Programmable Gate Arrays, integrating 8,000 usable gates and 672 logic elements in a 208-pin RQFP (Plastic Quad Flat Pack) package. Built on a 0.42 µm CMOS process and powered from a 5 V supply, the device is rated for operation up to 125 MHz and is intended for system-level logic integration where deterministic, reconfigurable hardware is required.

FLEX 8000 devices are SRAM-based programmable logic devices (PLDs). They belong to the broader taxonomy of FPGAs -> programmable logic -> logic ICs -> integrated circuits. Unlike antifuse or flash FPGAs, FLEX 8000 SRAM cells must be configured at every system power-up using external memory, which makes them reconfigurable in-circuit but volatile. Within the family, the EPF8820 sits in the mid-density tier between the smaller EPF8282/EPF8452 and the larger EPF8636/EPF81188.

Key features of the EPF8820ARC-4N include 672 logic elements (LEs), 152 maximum user I/O pins, an embedded array block for wide fan-in functions, FastTrack interconnect for predictable routing delays, and a 4-input look-up table (LUT) per logic element. The '-4N' speed grade combined with industrial temperature support (0 °C to +70 °C junction) makes the part a drop-in upgrade candidate for FLEX 8000 designs where timing closure is critical. The exposed pad on the RQFP-208 package provides an additional thermal dissipation path.

The device is configured at power-up via an industry-standard parallel EPROM or via Altera's serial configuration devices EPC1, EPC1064, EPC1213, and EPC1441. After configuration, the SRAM cells define both the logic function and the interconnect, allowing full in-system reprogrammability. The architecture is supported by the Altera MAX+PLUS II and Quartus design toolchains, which accept schematics, VHDL, and Verilog HDL inputs.

Typical applications include glue logic for legacy 5 V embedded systems, industrial control and instrumentation, bus-interface bridging, and ASIC prototyping where the design is intended to migrate to a hard-structured ASIC. The wide operating voltage and broad third-party IP ecosystem (UARTs, FIFOs, memory controllers) extend the device's usefulness to telecom, military, and avionics platforms where FLEX 8000 remains a long-lived standard.

A key design consideration for EPF8820ARC-4N is the configuration memory interface: because the SRAM configuration is volatile, the board must include a configuration EPROM, a microcontroller loader, or a JTAG chain (IEEE 1149.1 boundary-scan) to reload the bitstream on every power-up. Designers should also budget for the 5 V I/O bank supply and ensure that all inputs stay within the 5 V tolerant range to avoid latch-up.

This page synthesizes distributor pricing, drop-in FLEX 8000 family alternatives, and practical configuration/PCB layout notes not found in the manufacturer datasheet, giving engineers a single source for parametric, lifecycle, and replacement decisions.

Alternatif penggantian untuk EPF8820ARC-4N — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.

Variasi di dalam seri ini

Model-series yang sama yang kompatibel dengan penggantian EPF8820ARC-4N (sama faktor bentuk dan footprint) — berbeda di dalam Process Technology, Package, Operating Temperature, Speed Grade, Usable Gates.

EPF8636ARC208-3

Altera

Package: 208-RQFP (28x28 mm) with exposed pad

Operating Temperature: 0 C to +70 C (commercial)

Speed Grade: -3