Intel

EPF10K20TC144-4 - Flex 10K FPGA, 20K Gates, 144-LQFP | Intel

MPN: EPF10K20TC144-4 ✗ End of Life

In Stock Ships in 1-3 business days

4.75 V to 5.25 V (5 V nominal) Vdss 144-LQFP (TQFP), 45 x 45 mm, 1.27 mm pitch Package 125 MHz Speed 12,288 bits Memory

From $18.95 USD / Unit

MOQ: 1 |

Price updated: 2026-09-11

Volume Pricing

Qty	Unit Price	Extended
1	$38.5	$38.50
10	$32.1	$321.00
100	$26.75	$2,675.00
500	$22.4	$11,200.00
1,000	$18.95	$18,950.00

ℹ️ All prices are in USD

View Datasheet (PDF) View Alternatives

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EPF10K20TC144-4 Overview

The Intel (formerly Altera) EPF10K20TC144-4 is a member of the FLEX 10K family of SRAM-based Field-Programmable Gate Arrays (FPGAs) delivering 20,000 typical gates, 1,152 logic elements, 144 logic array blocks (LABs), and 12,288 bits of embedded memory, housed in a 144-pin LQFP (TQFP) surface-mount package. The "-4" speed grade designates a commercial temperature range (0C to 70C) at 5V nominal supply with a maximum operating frequency of approximately 125 MHz, optimized for cost-sensitive, non-timing-critical designs.

A Field-Programmable Gate Array (FPGA) is a reconfigurable semiconductor device containing an array of programmable logic blocks, interconnect, and I/O cells that the user defines after manufacture via a hardware description language (HDL) and a vendor toolchain. FPGAs sit in the broader taxonomy of programmable logic devices (PLDs), occupying the high-density tier above simple PLDs (SPLDs) and complex PLDs (CPLDs), and below ASICs in unit cost but above in flexibility and time-to-market. The FLEX 10K family was one of the first architectures to integrate dedicated embedded array blocks (EABs) for on-chip RAM/ROM, foreshadowing modern FPGA hard-IP blocks.

Key features include 102 user I/O pins (some sources list up to 122 user I/Os depending on configuration), 0.42 um CMOS process technology, 5 V single-supply operation (4.75 V to 5.25 V), 0.4 ns propagation delay per logic element, and in-system programmability via the Altera ByteBlaster or BitBlaster configuration interface. The embedded array blocks (EABs) provide up to 24 Kbits of true dual-port RAM, useful for FIFOs, look-up tables, and small state machines without consuming general-purpose logic.

Typical applications include glue logic replacement, communication bridge interfaces, industrial control prototypes, legacy system emulation, low-volume ASIC substitution, and educational/development boards. The wide 5V tolerance and large gate count historically made FLEX 10K parts popular for prototyping bus interfaces (ISA, PCI) and parallel DSP pipelines.

When designing with this device, ensure your configuration PROM (EPC2 or compatible) is correctly sized for the bitstream and that the JTAG chain includes boundary-scan compliance for production test. Note that this part is now mature/legacy and Altera/Intel last-time-buy support has ended for many FLEX 10K variants; verify long-term availability before committing to new designs.

This page synthesizes distributor pricing, pin-compatible legacy alternatives, and practical migration notes not found in the original datasheet - including guidance on transitioning to Cyclone-series FPGAs for new designs while preserving the existing 144-LQFP PCB footprint where possible.

Drop-in alternatives for EPF10K20TC144-4 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

Variants in this series

Same-series models that are drop-in compatible with EPF10K20TC144-4 (same form factor and footprint) — differing in Package, Operating Temperature, Process Technology, Series, Logic Elements / Cells.

EPF10K10TC144-4N

Altera

Package: 144-LQFP (TQFP-144)

Operating Temperature: 0 C to 70 C (Commercial)

Process Technology: 0.42 micron CMOS