Altera

EPM7256AEQC208-5N - MAX 7000A CPLD, 256 Macro, 5ns | Intel

MPN: EPM7256AEQC208-5N ✗ Akhir Hidup

3.3 V Vdss 208-pin PQFP (Plastic Quad Flat Pack) Package 172.4 MHz Speed

Ajukan Diskon

MOQ: 1 |

Lihat Datasheet (PDF) Lihat Alternatif

Kuantitas

EPM7256AEQC208-5N Ringkasan

The Intel (formerly Altera) EPM7256AEQC208-5N is a high-density CMOS Complex Programmable Logic Device (CPLD) from the MAX 7000A family, delivering 5,000 usable gates, 256 macrocells, and 164 user I/Os in a 208-pin PQFP package with -5 speed grade (5.5 ns pin-to-pin propagation delay). It operates from a 3.3 V core supply and supports in-system programmability via the IEEE Std. 1149.1 (JTAG) interface.

A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that sits between simple PAL/GAL devices and high-density FPGAs in the programmable logic hierarchy: SPLD -> CPLD -> FPGA. Unlike SRAM-based FPGAs, MAX 7000A devices use EEPROM configuration cells that retain the bitstream without external memory, enabling instant-on behavior. Within the broader taxonomy of digital semiconductors, the EPM7256AEQC208-5N belongs to programmable logic -> logic ICs -> integrated circuits.

Key features include a maximum internal frequency of 172.4 MHz, a 4.5 ns registered propagation delay, and 16 dedicated input pins plus 164 bidirectional I/O pins. The architecture combines the FastTrack interconnect matrix with each macrocell containing a programmable AND/OR array, a product-term allocator, and a flipflop. The 3.3 V supply reduces power consumption by approximately 50% versus the legacy 5 V MAX 7000 family while preserving pin compatibility with existing designs.

Typical applications include bus interface bridging, glue-logic consolidation, peripheral I/O expansion, and control-state-machine implementation in telecom, industrial, and embedded systems. Designers use the part to replace discrete 74LS/74HC logic, reducing board area and BOM cost. The JTAG chain and built-in ISP (In-System Programmability) enable field firmware updates without removing the device from the board, a key advantage in deployed systems.

When designing with this device, ensure the Quartus II / MAX+PLUS II design software is used for fitting and that the JTAG pins (TDI/TDO/TMS/TCK) are pulled to valid logic levels through 10 kohm resistors. The PQFP-208 footprint requires a 0.5 mm lead pitch and IPC-7351 land patterns, and the device is rated for commercial temperature operation (0 C to +70 C).

This page synthesizes distributor pricing, same-brand drop-in alternatives drawn from the MAX 7000A family, and practical design notes not found in the manufacturer datasheet.

Alternatif penggantian untuk EPM7256AEQC208-5N — 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 EPM7256AEQC208-5N (sama faktor bentuk dan footprint) — berbeda di dalam Package, Maximum Internal Frequency, Operating Temperature, Pin-to-Pin Propagation Delay (tPD), RoHS Status.

EPM7256AEQI208-7N

Altera

Package: 208-pin PQFP (FQFP)

Maximum Internal Frequency: 126.6 MHz

Pin-to-Pin Propagation Delay (tPD): 7.5 ns