ISPLSI81080V-125LB492

Overview

The ISPLSI81080V-125LB492 is a high-performance Complex Programmable Logic Device (CPLD) belonging to the ispLSI 8000V family. It features 80 macrocells and supports up to 360 usable I/Os, providing significant logic density for complex digital designs. The device operates with a maximum system clock frequency of 125 MHz and utilizes a 2.5V core voltage. It integrates non-volatile in-system programmable flash memory, allowing for rapid configuration and reprogramming without external components. The LB492 package offers a 492-ball grid array format suitable for high-density board layouts.

Feature Summary

• ispLSI 8000V architecture with 80 macrocells and 360 usable I/Os
• Non-volatile flash technology enabling in-system programming
• High-speed performance with 125 MHz system clock capability
• Integrated on-chip SRAM for design verification

Applications

• High-density interface bridging in telecommunications equipment
• Complex control logic for industrial automation systems
• Signal processing front-ends requiring fast configuration
• Prototyping and final production for space-constrained embedded designs

Procurement Notes

Verify the specific suffix 'LB492' corresponds to the 492-ball FBGA package dimensions and pinout required for your PCB footprint. Confirm the 'V' designation indicates the correct voltage and temperature grade for your application environment. Ensure compatibility with Lattice's ispVMX or Diamond software tools for programming and configuration.

Selection Notes

Select this component when designing systems requiring high I/O counts and moderate logic density within a single chip. The 80 macrocell count is suitable for state machines and bus protocols. Consider the 125 MHz speed grade if timing constraints are tight. Compare against lower-density ispLSI models if fewer I/Os suffice to reduce cost and power consumption.

Part Context

This part belongs to the ispLSI 8000V family, which succeeded earlier ispLSI 8000 series devices. It represents Lattice Semiconductor's focus on non-volatile CPLDs that eliminate the need for external configuration PROMs. The family is known for robust security features and high reliability in harsh environments.

Replacement Considerations

Direct replacements may include other parts from the ispLSI 8000V family with similar macrocell counts, such as the ISPLSI8160V, provided pin compatibility is verified. Cross-family migration to MachXO or iCE40 series requires significant schematic and code redesign due to architectural differences.