LC4128V-75TN100C

Complex Programmable Logic Devices Overview

The LC4128V-75TN100C is a Complex Programmable Logic Device (CPLD) from the Lattice ispMACH 4000V family. It features 128 macrocells organized into 8 logic array blocks and supports up to 64 I/Os within a 100-pin TQFP package. The device operates with an internal supply voltage of 3V to 3.6V and offers a maximum propagation delay of 7.5 ns. It functions within a junction temperature range of 0°C to 90°C and utilizes EEPROM technology for non-volatile configuration storage.

Complex Programmable Logic Devices Feature Summary

• Supports in-system programmability via JTAG interface
• Utilizes high-density EEPROM technology for non-volatile configuration retention
• Features flexible I/O architecture with multiple drive strength options

Complex Programmable Logic Devices Applications

• High-speed interface bridging between different protocol standards
• Address decoding and bus buffering in embedded systems
• State machine implementation for control logic applications
• Replacement for legacy GAL or PAL devices in modern designs

Complex Programmable Logic Devices Procurement Notes

Verify the specific suffix 'C' indicates commercial temperature grade operation when sourcing replacements. Confirm that the 100-TQFP package dimensions match the target PCB footprint, as leaded and lead-free variants may have slight mechanical differences. Ensure design tools support the ispMACH 4000V family architecture for accurate timing analysis and programming.

Complex Programmable Logic Devices Selection Notes

Select this component when a moderate density CPLD with fast propagation delays is required for system integration. Compare against the LC4128Z series if extended industrial temperature ranges are necessary, noting the voltage difference. Consider pin compatibility with older XC9500 series parts if migrating existing designs, while accounting for the lower supply voltage requirements of the V-series.

Complex Programmable Logic Devices Part Context

This part belongs to the ispMACH 4000V family, designed for low-power, high-performance applications. It serves as a successor to earlier generations like the ispMACH 4000ZE, offering improved speed and reduced power consumption. The family is widely used in consumer electronics and industrial control due to its ease of use and robust in-system programming capabilities.

Complex Programmable Logic Devices Replacement Considerations

Public documentation identifies the AMD XC95108-15PC84C as a similar alternative, though it differs significantly in package type (PLCC vs TQFP), supply voltage (5V vs 3.3V), and speed characteristics. Direct pin-for-pin substitution is not feasible without schematic modification.