LC4256ZC-75T176C

Complex Programmable Logic Devices Overview

The LC4256ZC-75T176C is a Complex Programmable Logic Device (CPLD) from the Lattice ispMACH 4000B family. It features 256 macrocells, 16 Logic Array Blocks (LABs), and supports up to 192 I/O pins in a TQFP-176 package. The device operates at a maximum frequency of 333 MHz with a maximum propagation delay of 7.5 ns. It functions within a supply voltage range of 1.7 V to 1.9 V and supports an industrial temperature range from -40°C to +105°C.

Complex Programmable Logic Devices Feature Summary

• System-in-programmable architecture for flexible logic implementation
• Low-power 1.8V operation suitable for energy-efficient designs
• High-density logic capacity with 256 macrocells and 16 LABs
• Industrial temperature rating for robust environmental performance

Complex Programmable Logic Devices Applications

• High-speed interface bridging and protocol conversion
• Complex glue logic replacement in embedded systems
• Address decoding and bus arbitration circuits
• State machine implementation for control applications

Complex Programmable Logic Devices Procurement Notes

Verify the specific suffix 'C' indicates commercial temperature grade (-0°C to +70°C) rather than industrial, as datasheets typically define 'I' for industrial. Confirm package availability in TQFP-176 format. Check for RoHS compliance status and moisture sensitivity level requirements during storage and handling. Ensure design tools support the ispMACH 4000B family for programming and verification.

Complex Programmable Logic Devices Selection Notes

Select this component when 256 macrocells are sufficient for the design complexity. Compare against LC4256V series if 3.3V operation is required instead of 1.8V. Consider pin count compatibility with the TQFP-176 footprint. Evaluate power consumption constraints against the 1.8V core voltage specifications. Verify timing requirements meet the 7.5 ns propagation delay limit.

Complex Programmable Logic Devices Part Context

This part belongs to the Lattice ispMACH 4000B CPLD family, which offers non-volatile programmability and high performance. It serves as a successor to earlier ispMACH devices, providing enhanced density and lower power consumption. The family is widely used in legacy system upgrades and new designs requiring reliable, reprogrammable logic solutions.

Complex Programmable Logic Devices Replacement Considerations

Direct replacements include other variants within the LC4256ZC series with different package options or speed grades. Cross-family migration to LC4512ZC may be necessary if additional macrocells are required. Verify pinout compatibility when substituting with LC4256ZE series devices.