LC4256C-10TN100I

Complex Programmable Logic Devices Overview

The LC4256C-10TN100I is a Complex Programmable Logic Device (CPLD) from the Lattice CPLD family, manufactured by Lattice Semiconductor Corporation. It features 256 macrocells and supports up to 64 I/O pins within a TQFP-100 surface-mount package. The device operates at a maximum frequency of 200 MHz with a typical propagation delay of 10 ns. It functions within a supply voltage range of 1.8 V to 5.5 V and is rated for an industrial temperature range of -40°C to +85°C.

Complex Programmable Logic Devices Feature Summary

• High-density architecture with 256 macrocells and 64 I/Os in a compact TQFP-100 package
• Fast switching speed with a maximum operating frequency of 200 MHz
• Wide supply voltage compatibility supporting both 3.3V and 5V logic systems
• Industrial-grade reliability with operation across -40°C to +85°C

Complex Programmable Logic Devices Applications

• Interface bridging between different voltage domains
• Address decoding and control logic in embedded systems
• State machine implementation for industrial controllers
• Bus buffering and protocol conversion

Complex Programmable Logic Devices Procurement Notes

Verify the specific suffix 'I' indicates the industrial temperature grade (-40°C to +85°C). Confirm the package type is TQFP-100. Check RoHS compliance status as per current manufacturer specifications. Ensure the ordering part number matches exactly to avoid functional differences.

Complex Programmable Logic Devices Selection Notes

Select this component when 256 macrocells are sufficient for the design logic requirements. Consider the 10 ns delay for timing-critical paths. Verify that the TQFP-100 footprint fits the PCB layout constraints. Compare against higher density models if more I/O or logic resources are needed.

Complex Programmable Logic Devices Part Context

This part belongs to the Lattice CPLD family, known for non-volatile configuration and high reliability. It serves as a drop-in replacement for older GAL devices in many legacy designs. The C series offers improved performance over previous generations while maintaining pin-to-pin compatibility with similar form factors.

Complex Programmable Logic Devices Replacement Considerations

Direct replacements include other LC4256 variants with compatible packages. Verify thermal grades match application needs. Cross-reference with Lattice's official substitution guide for guaranteed electrical and mechanical compatibility.