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 ✗ Cuối đời

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 Tóm tắt

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.

Bộ thay thế dễ dàng lắp đặt cho EPM7256SQC208-15 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.

Các biến thể trong loạt này

Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với EPM7256SQC208-15 (cùng hình factor và footprint) — khác nhau ở 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)