Altera

EPF8820AQC208-2 - FLEX 8000 FPGA, 8K Gates, 152 I/O, 5V, PQFP-208 | Altera

MPN: EPF8820AQC208-2 ✗ Akhir Hidup

5 V Vdss 208-BFQFP / 208-Pin PQFP (FQFP) Package 125 MHz Speed

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EPF8820AQC208-2 Ringkasan

The Altera (Intel Programmable Solutions Group) EPF8820AQC208-2 is a member of the FLEX 8000 family of CMOS Field-Programmable Gate Arrays (FPGAs), delivering approximately 8,000 usable gates, 672 logic cells (also referred to as registers), and 152 user I/Os at a maximum toggle frequency of 125 MHz, all in a 208-pin Power Quad Flat Pack (PQFP) package. The device operates from a 5 V supply and is specified over the commercial 0 C to 70 C temperature range, targeting glue-logic, bus-interface, and state-machine replacement in legacy 5V designs.

A Field-Programmable Gate Array (FPGA) is a type of programmable logic device (PLD) that combines an array of configurable logic blocks (CLBs), a programmable interconnect fabric, and programmable I/O cells. Within the broader semiconductor taxonomy, an FPGA belongs to: FPGA -> programmable logic device (PLD) -> logic IC -> integrated circuit -> semiconductor. FPGAs differ from CPLDs primarily by their SRAM-based configuration memory and finer-grained architecture, and they are typically used where high gate counts, register-rich designs, or in-system reconfigurability are required.

The FLEX 8000 family is implemented in a 5 V CMOS process with on-chip SRAM configuration memory. Each logic element (LE) contains a 4-input look-up table, a programmable register, and dedicated carry and cascade chains, allowing efficient implementation of arithmetic and wide fan-in logic. The interconnect uses continuous, fast-path lines across the entire die for predictable timing, and the device supports in-circuit reconfigurability (ICR) via external configuration devices, enabling field upgrades without removing the part from the system.

Key features of the EPF8820AQC208-2 include 84 Logic Array Blocks (LABs) of 8 LEs each (672 LEs total), 152 user I/O pins with 5 V tolerant I/O buffers, JTAG-based boundary-scan testing compliant with IEEE 1149.1, and a dedicated configuration interface. The PQFP-208 package provides gull-wing leads on a 28 mm x 28 mm body suitable for standard surface-mount assembly with a 0.5 mm lead pitch.

Typical applications include bus-interface bridging (PCI, ISA, VME), glue logic replacement for discrete 74-series TTL/CMOS, industrial control state machines, prototyping ASICs, and legacy telecom/datacom equipment that still operates from 5 V rails. The combination of high I/O count and 5V tolerance makes the EPF8820AQC208-2 well suited for backplane interfacing where 5V signaling is mandatory.

When designing with this part, note that FLEX 8000 devices are SRAM-based and require a configuration ROM on every power-up; JTAG programming alone does not retain the design. Designers should also verify that the 5V I/O tolerance is compatible with downstream devices and consider using series resistors or bus-switches when bridging to 3.3V peripherals. As the FLEX 8000 family is long since EOL/NRND, second-source qualification of pin-compatible alternatives is recommended for new designs.

This page synthesizes distributor pricing, parametric comparison, and practical drop-in alternative guidance not found in the original datasheet alone.

Alternatif penggantian untuk EPF8820AQC208-2 — 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 EPF8820AQC208-2 (sama faktor bentuk dan footprint) — berbeda di dalam Package, Configuration Method, Process Technology, Operating Temperature, Speed Grade.

EPF8636AQC208-2

Intel

Package: 208-BQFP / 208-PQFP (Plastic Quad Flat Pack)

Configuration Method: SRAM - serial or parallel EPROM, EPC1/EPC1064/EPC1213/EPC1441, or system controller

Process Technology: 0.42 µm CMOS SRAM