LC4256V-75T144E

Complex Programmable Logic Devices Overview

The LC4256V-75T144E is a Complex Programmable Logic Device (CPLD) from the Lattice ispMACH 4000V family. It features 256 macrocells and supports up to 96 I/O pins within a 144-pin TQFP package. The device operates on a single 3.3V supply voltage with a maximum propagation delay of 7.5 ns, enabling system clock frequencies up to approximately 133 MHz.

Complex Programmable Logic Devices Feature Summary

• High-density logic architecture with 256 macrocells for complex state machine implementation
• Flexible I/O interface supporting multiple voltage standards via 3.3V operation
• Non-volatile configuration memory retains design data without external battery backup

Complex Programmable Logic Devices Applications

• Address decoding and bus bridging in embedded systems
• Interface translation between legacy protocols and modern digital buses
• Complex glue logic replacement in industrial control units
• Power-on reset generation and system initialization sequencing

Complex Programmable Logic Devices Procurement Notes

Verify the specific suffix 'E' against official Lattice documentation to confirm temperature range or packaging variations. Confirm current production status as older CPLD families may be discontinued or subject to last-time buy notices. Ensure compatibility with existing PCB footprints for the 144-TQFP form factor.

Complex Programmable Logic Devices Selection Notes

Select this component when designs require moderate logic density with guaranteed non-volatile storage. Compare propagation delays against system timing requirements to ensure the 7.5 ns limit meets setup and hold times. Evaluate pin count availability relative to the 96 I/O limit for interface expansion needs.

Complex Programmable Logic Devices Part Context

This part belongs to the ispMACH 4000V series, designed for cost-sensitive applications requiring low power consumption and high reliability. The V-series typically denotes enhanced performance over previous generations while maintaining backward compatibility with standard CPLD design flows.

Complex Programmable Logic Devices Replacement Considerations

Direct replacements include other variants within the LC4256V series with different speed grades or package options. Cross-family migration to newer Lattice architectures requires significant redesign due to architectural differences.