EPM7256AEFC256-10

Complex Programmable Logic Devices Overview

The Altera EPM7256AEFC256-10 is a Complex Programmable Logic Device (CPLD) belonging to the MAX 7000A family. It features 256 macrocells organized into 16 Logic Array Blocks (LABs), providing approximately 5,000 usable gates. The device operates at a supply voltage of 3.3 V (range 3.0 V to 3.6 V) and utilizes EEPROM technology for non-volatile configuration storage. Packaged in a 256-pin FineLine BGA (FBGA-256), it supports up to 164 I/O pins. Key electrical parameters include a maximum propagation delay of 10 ns and a maximum operating frequency of 95.2 MHz.

Complex Programmable Logic Devices Feature Summary

• Contains 256 macrocells distributed across 16 Logic Array Blocks (LABs).
• Supports 164 user-accessible I/O pins within a 256-pin FBGA package.
• Utilizes EEPROM memory for instant-on configuration without external PROMs.
• Features 5V-tolerant inputs compatible with legacy 5V logic systems.

Complex Programmable Logic Devices Applications

• Address decoding and bus bridging in embedded systems.
• Protocol conversion between different interface standards.
• State machine implementation for industrial control logic.
• Replacement for discrete gate arrays in space-constrained designs.

Complex Programmable Logic Devices Procurement Notes

Verify component authenticity due to the age of the MAX 7000A series. Confirm RoHS compliance status as early variants may not meet current environmental directives. Check for moisture sensitivity level (MSL) handling requirements prior to soldering. Ensure the specific speed grade (-10) matches timing constraints of the target design.

Complex Programmable Logic Devices Selection Notes

Select this model when 256 macrocells are sufficient for the logic density required. The -10 speed grade offers a 10 ns propagation delay, suitable for moderate-speed applications. Choose the FC256 package only if the PCB layout supports FineLine BGA footprints. Verify that the 3.3 V core voltage aligns with the system power architecture.

Complex Programmable Logic Devices Part Context

This component is part of the Altera MAX 7000A CPLD family, designed to replace complex discrete logic circuits. It succeeded earlier MAX 7000 variants with improved performance and lower power consumption. The EPM7256AEFC256-10 specifically targets designs requiring high I/O counts and reliable non-volatile configuration in a compact form factor.

Complex Programmable Logic Devices Replacement Considerations

Direct pin-to-pin replacements within the same package and speed grade are limited. Consider the EPM7256AEFI256-10 for an alternative FBGA variant or the EPM7256SRI208-10 for a QFP package if footprint changes are permissible. Higher-density MAX 10 or Agilex families require significant redesign.