EPM7256EQC160-20

Complex Programmable Logic Devices Overview

The Altera EPM7256EQC160-20 is a Complex Programmable Logic Device (CPLD) belonging to the MAX 7000 family. It features 256 macrocells, 3750 usable gates, and 124 I/O pins housed in a PQFP-160 package. The device operates on a 5V supply voltage with a maximum frequency of 90.9 MHz and a propagation delay of 12 ns. It utilizes EEPROM technology for non-volatile configuration and supports System In-Programmability (SIP). The component is rated for commercial temperature ranges from 0°C to +70°C.

Complex Programmable Logic Devices Feature Summary

• Contains 256 macrocells organized into 12 Logic Array Blocks (LABs)
• Supports System In-Programmability (SIP) via JTAG interface
• EEPROM-based non-volatile memory architecture
• 124 I/O pins available in a 160-pin PQFP package

Complex Programmable Logic Devices Applications

• General-purpose digital logic implementation
• Bus protocol conversion and interfacing
• Address decoding and control logic generation
• State machine design for embedded systems

Complex Programmable Logic Devices Procurement Notes

This component is officially listed as End-of-Life (EOL) by the manufacturer. Verification of authenticity is critical when sourcing from secondary markets due to potential obsolescence. Buyers must confirm the specific suffix '20' corresponds to the 20ns speed grade and verify RoHS compliance status, as older batches may not meet current environmental standards.

Complex Programmable Logic Devices Selection Notes

Select this part for designs requiring moderate logic density with high pin counts in a surface-mount package. Ensure the system power supply is stable at 5V ±5%. Verify that the PCB layout accommodates the thermal requirements of the PQFP-160 package. Consider the 12ns propagation delay when designing timing-critical paths exceeding 90.9 MHz.

Complex Programmable Logic Devices Part Context

The EPM7256EQC160-20 is part of the Altera MAX 7000 series, designed for cost-effective programmable logic solutions. It succeeded earlier GAL devices and preceded the MAX 7000A series. The 'E' indicates an extended temperature range variant compared to standard industrial parts, though this specific model is rated for commercial temperatures.

Complex Programmable Logic Devices Replacement Considerations

Direct pin-to-pin replacements are limited due to EOL status. Potential functional equivalents include the EPM7256EQC160-15 (faster speed grade) or EPM7192EQC160-20 (fewer macrocells but same package). Modern FPGA alternatives require significant architectural redesign.