EPM7256AEQI208-7

Complex Programmable Logic Devices Overview

The Altera EPM7256AEQI208-7 is a Complex Programmable Logic Device (CPLD) belonging to the MAX 7000A family. It features 256 macrocells and supports up to 164 I/O pins within a 208-pin PQFP package. The device operates on a 3.3 V supply voltage, with a maximum operating frequency of 172.4 MHz and a typical propagation delay of 5.5 ns. It utilizes EEPROM technology for non-volatile configuration, eliminating the need for external configuration memory. The component is rated for commercial temperature ranges from 0°C to +70°C.

Complex Programmable Logic Devices Feature Summary

• 256 Macrocells with 164 I/Os in a 208-pin PQFP package
• EEPROM-based non-volatile configuration architecture
• High-speed performance: 172.4 MHz max frequency, 5.5 ns delay
• Single 3.3 V power supply operation

Complex Programmable Logic Devices Applications

• System logic control and interface bridging
• Address decoding and bus arbitration
• State machine implementation
• Protocol conversion in communication systems

Complex Programmable Logic Devices Part Context

This part belongs to the MAX 7000A series, an evolution of the original MAX 7000 line. It shares architectural similarities with variants like EPM7256AEQC208-7N but differs in package type (QFI vs QC). The 'AE' suffix denotes the 3.3V variant within the MAX 7000A family, offering improved performance over earlier generations while maintaining pin compatibility with specific legacy designs.

Complex Programmable Logic Devices Replacement Considerations

Direct pin-compatible replacements within the same package include EPM7256AEQC208-7N or EPM7256BQC208-7, provided the package difference (QFI vs QC) is resolved via PCB redesign or adapter. Cross-family upgrades to MAX II or MAX V require significant design changes due to architectural differences.