LC4256V-10T176I

Complex Programmable Logic Devices Overview

The LC4256V-10T176I is a Complex Programmable Logic Device (CPLD) belonging to the ispMACH 4000V/B/C/Z family. It features a high-density architecture with 256 macrocells and supports up to 128 I/O lines within a 176-pin Thin Quad Flat Package (TQFP). The device operates at a maximum frequency of 156 MHz with a propagation delay of 2.5 ns. It includes four global clock pins with programmable polarity control and supports in-system programming via JTAG.

Complex Programmable Logic Devices Feature Summary

• High-performance logic density with 256 macrocells and up to 80 product terms per output
• Supports in-system programming and boundary scan testing via JTAG interface
• Features four global clock pins with programmable polarity control for flexible timing management

Complex Programmable Logic Devices Applications

• Industrial automation control systems requiring reliable logic interfacing
• Communication infrastructure equipment for signal processing and protocol conversion
• Automotive electronic control units for display and safety system integration
• Consumer electronics involving video scaling and embedded vision tasks

Complex Programmable Logic Devices Procurement Notes

Verify the specific suffix '10' indicates the 10 ns speed grade when sourcing replacements. Confirm RoHS3 compliance and moisture sensitivity level 1 status during procurement. Ensure the TQFP package variant matches the target footprint requirements. Check for any recent packaging marking changes documented in Product Change Notices. Validate that the supplier provides official Lattice Semiconductor documentation for the exact part number.

Complex Programmable Logic Devices Selection Notes

Select this component for designs requiring moderate logic density with low power consumption. The 176-pin TQFP package offers a balance between pin count and board space. Consider the 156 MHz performance limit for synchronous logic applications. Evaluate the need for in-system programming capabilities during the development phase. Compare against other ispMACH 4000 variants if higher I/O counts or different voltage levels are required.

Complex Programmable Logic Devices Part Context

This CPLD is part of the ispMACH 4000 family, designed for low-power, high-density programmable logic applications. It complements Lattice's FPGA portfolio by providing cost-effective solutions for fixed-function logic replacement. The family supports multiple voltage levels including 3.3 V, 2.5 V, and 1.8 V. It is widely used in legacy system upgrades and new designs requiring deterministic logic behavior.

Complex Programmable Logic Devices Replacement Considerations

Direct substitutes include other devices from the ispMACH 4000V series with compatible pinouts and logic resources. Verify that alternative parts support the same 176-pin TQFP package dimensions. Ensure compatibility with existing programming tools such as the pDS4102-PM300N programmer. Check for equivalent speed grades to maintain system timing integrity.