ISPLSI8840V-125LB492

Overview

The ISPLSI8840V-125LB492 is a high-performance Complex Programmable Logic Device (CPLD) belonging to the ispMACH 4000V family. It integrates 88 macrocells and supports operation frequencies up to 400 MHz with a typical propagation delay of 2.5 ns. The device operates at a core voltage of 3.3 V and features 5 V tolerant I/Os compatible with LVCMOS 3.3, LV TTL, and PCI standards. Packaged in a 492-ball FineLine BGA, it provides extensive I/O capacity for dense digital logic applications requiring low power consumption and fast turnaround times.

Feature Summary

• High-speed performance with fmax up to 400 MHz and tpd of 2.5 ns
• 88 macrocells with global and output routing resources
• 5 V tolerant I/Os supporting multiple logic standards
• In-system programmability via JTAG interface

Applications

• High-speed data buffering and protocol bridging
• Complex glue logic for system interconnects
• Address decoding and control logic in embedded systems
• PCI bus interface logic

Procurement Notes

Verify the specific suffix LB492 corresponds to the 492-ball FineLine BGA package configuration. Confirm the speed grade 125 aligns with the required timing constraints for your design. Ensure the V suffix indicates the 3.3 V core voltage variant. Check for automotive or extended temperature variants if operating conditions exceed commercial limits.

Selection Notes

Select this component when designs require moderate logic density with very high speed performance. The 492-ball package offers significant I/O count suitable for complex system integration. Compare against ispMACH 4000B/C/Z families if lower speed or different voltage options are acceptable. Verify pin compatibility if migrating from older ispLSI 2000 series designs.

Part Context

This device is part of the Lattice ispMACH 4000 family, which combines architecture from ispLSI 2000 and ispMACH 4A devices. It serves as a non-volatile CPLD solution offering predictable timing and easy migration paths. The family is designed for applications needing instant-on capability and robust security features through password protection.

Replacement Considerations

Direct replacements within the same family include other ispMACH 4000V devices with similar macrocell counts and package types. Consider the ISPLSI8840B or ISPLSI8840C variants if speed or voltage requirements differ. Cross-reference pinouts carefully when moving between different package densities within the 4000 series.