LC4256C-3FTN256AC

Complex Programmable Logic Devices Overview

The LC4256C-3FTN256AC is a complex programmable logic device (CPLD) from Lattice Semiconductor’s MachXO2 family. It features 256 macrocells and supports up to 192 I/Os in a 256-pin FineLine BGA package. The device operates with a core voltage of 1.2V and includes 1 Mbit of embedded Flash memory for non-volatile configuration. Key specifications include a maximum system clock frequency of 333 MHz, distributed RAM, and support for multiple I/O standards. It offers industry-leading soft error detection and correction capabilities.

Complex Programmable Logic Devices Feature Summary

• 256 Macrocells with 1 Mbit Embedded Flash Memory
• Up to 192 User I/Os in 256-pin FineLine BGA Package
• 333 MHz Maximum System Clock Frequency
• Soft Error Detection and Correction (SEDAC)

Complex Programmable Logic Devices Applications

• High-density interface bridging
• System control and monitoring
• Signal protocol conversion

Complex Programmable Logic Devices Procurement Notes

Verify the specific suffix 'AC' against official Lattice documentation to confirm temperature range and commercial grade classification. Ensure the 256-pin FineLine BGA footprint matches the target PCB design constraints. Confirm availability of compatible programming tools such as Lattice Radiant or Diamond software for configuration.

Complex Programmable Logic Devices Selection Notes

Select this model for designs requiring high I/O density within a compact form factor. The 256 macrocell count suits moderate complexity logic functions. Consider the 1.2V core voltage for power efficiency. Evaluate the 333 MHz speed grade against timing requirements. Compare against larger MachXO2 variants if additional logic resources are needed.

Complex Programmable Logic Devices Part Context

This component belongs to the MachXO2 series, which combines CPLD flexibility with FPGA-like performance. The series is known for low power consumption and robust security features. The LC4256C variant represents a mid-range density option within the family, balancing resource availability with package size.

Complex Programmable Logic Devices Replacement Considerations

Direct replacements within the MachXO2 family include LC4256M-3FTN256C or LC4256Z-3FTN256C, depending on required speed grades and feature sets. Verify pin-to-pin compatibility and electrical characteristics before substitution.