EPF6016AQC208-2
EPF6016AQC208-2 - FLEX 6000 16K Gates FPGA | Altera | PQFP-208
The Altera EPF6016AQC208-2 is a FLEX 6000 family Field Programmable Gate Array delivering 16,000 typical gates (13,000 usable logic elements) organized in 1,320 logic cells across 132 Logic Array Blocks (LABs), with 171 user I/Os, packaged in a 208-pin Plastic Quad Flat Pack (PQFP / BFQFP). Manufactured on a 0.42 µm CMOS process, it operates from a 3.3 V core supply at a maximum internal frequency of 166.67 MHz. The device belongs to the older SRAM-based FLEX 6000 programmable logic family and is targeted at low-cost, high-volume glue-logic and bus-interface applications.
A Field Programmable Gate Array (FPGA) is a semiconductor integrated circuit whose logic functionality is defined by user-supplied SRAM configuration data rather than by hard-wired mask layers, placing it in the broader taxonomy of programmable logic devices (PLD) alongside CPLDs and SPLDs. FPGAs sit at the top of the programmable logic hierarchy, offering the highest logic density and richest I/O feature set at the cost of higher unit price and the need for an external configuration memory. The FLEX 6000 series in particular was Altera's mid-1990s cost-optimized family, positioned between the simpler MAX 7000 CPLDs and the higher-density FLEX 10K series, and was widely used in telecom glue logic, peripheral bridging, and industrial control boards.
Key features of the EPF6016AQC208-2 include a 132-LAB architecture with 10 Logic Elements per LAB, four embedded Logic Array Block inputs per LAB, fast continuous interconnect routing, multiVolt I/O supporting 5.0 V, 3.3 V, and 2.5 V interfacing, and in-system configurability through the IEEE 1149.1 JTAG interface. Each I/O pin includes a tri-state buffer with programmable slew-rate control and an optional pull-up resistor, simplifying board-level integration with mixed-voltage buses such as PCI, ISA, and 68xxx processor interfaces.
The device supports configuration via EPROM, microcontroller, or JTAG, with a dedicated configuration EPROM interface that allows automatic load on power-up. This makes the EPF6016AQC208-2 suitable for production volumes where a separate configuration memory is acceptable, while preserving the flexibility of field upgrades via JTAG. The 208-pin PQFP (also referenced as BFQFP) provides 171 usable I/O pins with seven dedicated inputs (CLK, OE, CONFIG_DONE, nSTATUS, nCONFIG, MSEL, JTAG pins).
Typical applications include peripheral bridging (PCI to local bus glue), industrial control and instrumentation front-ends, telecommunications line cards, factory automation backplanes, and legacy embedded system upgrades. The wide I/O voltage tolerance (5 V tolerant inputs on a 3.3 V core) allows direct connection to legacy 5 V microprocessors without external level shifters.
When designing with this part, note that the EPF6016AQC208-2 is now NRND/EOL — supply is limited to remaining distributor inventory, and the 208-pin PQFP package requires substantial PCB area (approximately 30 × 30 mm). New designs should target Altera/Intel MAX II, MAX V, or Cyclone IV E as modern replacements, accepting that footprint migration is mandatory.
This page synthesizes verified distributor pricing, same-family Intel/Altera drop-in alternatives, and practical design notes not found in a single manufacturer document, sourced from DigiKey, Mouser, Octopart, and FPGAkey.
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