Altera

EPM7256SQC208-15 - 256-Macrocell MAX 7000S CPLD, 15ns | Altera

Name: EPM7256SQC208-15 - 256-Macrocell MAX 7000S CPLD, 15ns | Altera
Brand: Altera
SKU: EPM7256SQC208-15

MPN: EPM7256SQC208-15 ✗ Akhir Hidup

4.75 V to 5.25 V Vdss 208-pin PQFP (28x28 mm) Package EEPROM (non-volatile) Memory

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MOQ: 1 |

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EPM7256SQC208-15 Ringkasan

The Altera (Intel) EPM7256SQC208-15 is a high-density, high-performance Complex Programmable Logic Device (CPLD) from the MAX 7000S family, featuring 256 macrocells, 16 logic array blocks (LABs), and 164 user I/O pins in a 208-pin PQFP package. The device delivers a 15 ns pin-to-pin propagation delay and operates from a single 4.75V to 5.25V supply, providing approximately 5,000 usable gates for glue-logic, bus-interface, and state-machine designs.

A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL-like macrocell blocks with a programmable interconnect matrix. Architecturally, CPLDs sit between simple SPLDs/PALs and larger FPGAs in the programmable logic hierarchy: like SPLDs they offer instant-on, deterministic, flash- or EPROM-backed configuration, but like FPGAs they integrate hundreds to thousands of gates with predictable timing. The MAX 7000S family uses Altera's second-generation MAX architecture with EEPROM-based configuration cells, eliminating the need for an external boot PROM and enabling in-system programmability (ISP) via JTAG.

Key features of the EPM7256SQC208-15 include 256 macrocells distributed across 16 LABs, a global clock network, programmable power management with pin-controlled turbo-bit disable for low-power standby, JTAG-compliant boundary-scan (IEEE 1149.1), and four pin-compatible speed grades (7, 10, 12, 15 ns). The 'C' in the part number designates the commercial 0C to +70C operating range; '15' denotes the 15 ns pin-to-pin delay.

Typical applications include bus-bridging logic between microprocessors and peripherals, address decoding and chip-select generation in embedded systems, glue logic in telecommunications and networking equipment, industrial control state machines, and replacement of multiple discrete 74-series logic ICs. The 164 user I/Os comfortably support wide data and address buses plus control signals for legacy parallel interfaces.

When designing with the EPM7256SQC208-15, ensure 5V tolerance compatibility for the I/O banks, provide proper decoupling on VCCINT/VCCIO pins, and use the Altera MAX+PLUS II or Quartus II design tools for synthesis, fitting, and JTAG programming. Designers migrating to lower-density footprints should consider the speed-grade variants (EPM7256SQC208-10 for 10 ns, EPM7256SQC208-7 for 7 ns) which are pin-compatible drop-in upgrades.

Alternatif penggantian untuk EPM7256SQC208-15 — 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 EPM7256SQC208-15 (sama faktor bentuk dan footprint) — berbeda di dalam Package, Speed Grade, Operating Temperature Range, RoHS Status, Device Type.

EPM7256AQC208-7

Altera

Package: 208-Pin PQFP (28 x 28 mm)

Speed Grade: -7

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