Altera

EPM7128EQC100-20 - MAX 7000 CPLD, 128 Macrocells, 84 I/O | Altera

MPN: EPM7128EQC100-20 ✗ Akhir Hidup

5 V Vdss 100-pin PQFP (BQFP, gull-wing) Package 250 MHz Speed

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EPM7128EQC100-20 Ringkasan

The Altera (Intel) EPM7128EQC100-20 is a high-density CMOS EPLD (Erasable Programmable Logic Device) from the MAX 7000 family, offering 2.5K usable gates, 128 macrocells and 84 user I/O pins in a 100-pin PQFP (Plastic Quad Flat Pack) package. The "-20" speed grade denotes a pin-to-pin propagation delay of 20 ns and an internal counter frequency capability tied to the device's tpd1/tpd2 specifications, making it well suited to glue-logic and bus-interface designs that have been in production since the mid-1990s.

An EPLD (Erasable Programmable Logic Device) is a non-volatile, electrically erasable CMOS logic device that sits hierarchically between PAL/GAL simple PLDs and full FPGAs. Within the MAX 7000 architecture, logic is organized into Logic Array Blocks (LABs), each containing 16 macrocells with a programmable AND/OR array, a product-term allocator, and a configurable flip-flop. A global Interconnect Array (PIA) routes signals between LABs and the I/O pins, and a JTAG-compliant IEEE 1149.1 boundary-scan interface is provided for in-system programming (ISP) and board-level testing.

Key features of the EPM7128EQC100-20 include 128 macrocells, 250 MHz maximum internal frequency, 4.5 ns propagation delay (per third-party digchip datasheet summary), CMOS 5V I/O with 3.3V/5V tolerant interfacing, in-system programmability via JTAG, and a commercial operating temperature grade of 0°C to 90°C. The 100-pin PQFP package supports 84 user I/Os while providing dedicated JTAG, clock, clear and global OE pins, making it suitable for legacy parallel-bus interfaces, address decoding, and peripheral control logic.

Typical applications include industrial control boards, telecommunications glue logic, address decoding and bus interfacing for legacy microprocessors, peripheral controllers, and pin-compatible upgrades for older MAX 7000 designs. With 128 macrocells the device can absorb the equivalent of roughly 200 to 400 standard 22V10-style PAL equations in a single chip, simplifying board BOMs and reducing chip count in mature designs.

When designing with this part, engineers should note that the 5V core supply, commercial temperature grade and PQFP footprint are characteristic of 1990s-era designs. Modern 3.3V-only or low-power designs should consider MAX II, MAX V or MAX 10 CPLDs as alternatives, as the EPM7128EQC100-20 is now typically sourced for maintenance, repair and legacy production rather than new designs. Designers must observe the 20 ns timing budget carefully for high-speed bus interfaces such as ISA or PCI.

This page synthesizes distributor pricing, drop-in same-package alternatives (EPM7128EQC100-10, EPM7128SQC100-7, EPM7128STC100-10), pinout data and practical design notes not assembled in any single manufacturer document.

Alternatif penggantian untuk EPM7128EQC100-20 — 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 EPM7128EQC100-20 (sama faktor bentuk dan footprint) — berbeda di dalam Package, Operating Temperature, Family, Usable Gates, Device Type.

EPM7128EQC100-10

Altera

Package: 100-pin PQFP (Plastic Quad Flat Pack), gull-wing leads

Operating Temperature: 0 °C to +90 °C (Commercial)

Usable Gates: 2,500