Altera

EPM7256SRC208-15N - MAX 7000S CPLD 256 Macro | Altera

Name: EPM7256SRC208-15N - MAX 7000S CPLD 256 Macro | Altera
Brand: Altera
SKU: EPM7256SRC208-15N

MPN: EPM7256SRC208-15N ✗ Akhir Hidup

5 V Vdss 208-pin RQFP (PowerQuad Flat Pack) Package 76.9 MHz Speed EEPROM (non-volatile) Memory

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EPM7256SRC208-15N Ringkasan

The Altera EPM7256SRC208-15N is a MAX 7000S-series Complex Programmable Logic Device (CPLD) with 256 macrocells, 164 user I/O pins, and a 15 ns pin-to-pin propagation delay, housed in a 208-pin RQFP (PowerQuad Flat Pack) package. It operates from a 5 V supply and delivers 5,000 usable gates of EEPROM-based programmable logic.

A CPLD (Complex Programmable Logic Device) is a programmable logic IC that combines multiple logic blocks, macrocells, and a programmable interconnect array on a single die. CPLDs sit between simple PAL/GAL devices and full FPGAs in the programmable logic hierarchy: they offer non-volatile configuration, deterministic timing, and instant-on operation, making them ideal for glue logic, bus interfacing, and state machines. The MAX 7000S family is built on Altera's second-generation MAX architecture using EEPROM cells, so configuration is retained without an external boot device.

Key features of the EPM7256SRC208-15N include 256 macrocells organized into 16 logic array blocks (LABs), 164 I/O pins, 5,000 usable gates, and a maximum counter frequency of 76.9 MHz. The 15 ns pin-to-pin delay provides predictable, fixed timing without the routing-dependent variability of SRAM-based FPGAs. The device supports in-system programmability (ISP) via the IEEE 1149.1 JTAG interface, allowing field upgrades without removing the part from the board.

The MAX 7000S architecture uses a programmable interconnect array (PIA) to route signals between LABs, giving deterministic propagation delays. Each macrocell contains a flip-flop with independent clock, clear, and preset controls, plus product-term logic for combinatorial functions. The EEPROM process provides high noise immunity and 5 V TTL/CMOS-compatible I/O, simplifying interfacing to legacy 5 V logic.

Typical applications include PCI bus glue logic, ISA/PC-104 interface controllers, industrial automation state machines, telecommunications line-card control, test-and-measurement instrumentation, and legacy system replacement where 5 V logic and non-volatile configuration are required.

When designing with this CPLD, ensure the 5 V supply is well decoupled with 0.1 uF ceramic capacitors on every VCC pin, and reserve the JTAG pins for in-system programming. The 208-pin RQFP package requires careful thermal and signal-integrity layout for the 164 I/O pins.

This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing engineers with a single reference for selection, replacement, and layout decisions.

Alternatif penggantian untuk EPM7256SRC208-15N — 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 EPM7256SRC208-15N (sama faktor bentuk dan footprint) — berbeda di dalam Package, RoHS Status, Operating Temperature, Pin-to-Pin Delay (tPD), Speed Grade.

EPM7256SQC208-10

Intel

Package: 208-pin PQFP (SQC208)