LC4128V-5T128C

Complex Programmable Logic Devices Overview

The LC4128V-5T128C is a high-density Complex Programmable Logic Device (CPLD) from the Lattice ispMACH 4000V family. It features 128 macrocells and supports system-in-programmability for flexible design updates. The device operates with a supply voltage range of 3.0 V to 3.6 V, ensuring compatibility with standard logic levels. It offers a maximum operating frequency of 333 MHz and a typical propagation delay of 5 ns, suitable for high-speed digital applications.

Complex Programmable Logic Devices Feature Summary

• High-density architecture with 128 macrocells for complex logic implementation
• Supports in-system programming via JTAG interface for rapid prototyping
• SuperFAST technology enables high-frequency operation up to 333 MHz
• Compatible with 3.3 V logic families while supporting lower voltage I/O

Complex Programmable Logic Devices Applications

• Keyboard controller interfaces in embedded systems
• Address decoding and bus bridging in industrial control systems
• State machine implementation for automated testing equipment
• Protocol conversion between different communication standards

Complex Programmable Logic Devices Procurement Notes

Verify the specific suffix '5T' against official Lattice documentation to confirm pinout and electrical characteristics, as variations exist within the LC4128V series. Ensure the component meets RoHS compliance requirements if applicable to your manufacturing process. Cross-reference the package type TQFP-128 with your PCB footprint specifications to guarantee mechanical compatibility during assembly.

Complex Programmable Logic Devices Selection Notes

Select this device when designing systems requiring moderate logic density with high-speed performance capabilities. The 128 macrocell count provides sufficient resources for medium-complexity state machines and combinational logic. Consider the 3.3 V operating voltage for direct interfacing with standard microcontrollers and memory devices without additional level shifting circuitry.

Complex Programmable Logic Devices Part Context

The LC4128V belongs to Lattice's ispMACH 4000V family, designed for cost-sensitive applications requiring non-volatile programmability. This series bridges the gap between simple PLDs and more complex FPGAs, offering deterministic timing and low power consumption. The V variant specifically targets 3.3 V applications with enhanced speed grades compared to earlier generations.

Complex Programmable Logic Devices Replacement Considerations

Direct replacements include other members of the LC4128V family with compatible packages, such as LC4128V-7T128C or LC4128V-10T128C, depending on required speed grades. For legacy leaded packages, verify pin-to-pin compatibility before substitution. Always consult the latest Lattice datasheets to ensure functional equivalence regarding I/O drive strength and power consumption profiles.