LC4384B-5FTN256I

Complex Programmable Logic Devices Overview

The LC4384B-5FTN256I is a complex programmable logic device (CPLD) from the ispMACH 4000V/B/C/Z family, manufactured by Lattice Semiconductor Corporation. It features 384 macrocells and operates with a maximum frequency of 322 MHz. The device utilizes a 1.8V core voltage for low dynamic power consumption while supporting 5V-compatible I/O standards including LVCMOS 3.3, LVCMOS 2.5, LVCMOS 1.8, and LVTTTL. Packaged in a 256-pin FineLine BGA, it offers high-density interconnect capabilities suitable for control and bridging applications requiring predictable timing and robust signal integrity.

Complex Programmable Logic Devices Feature Summary

• 384 macrocells with SuperFast architecture supporting up to 322 MHz operation
• 1.8V core voltage with 5V-tolerant I/Os for mixed-voltage system integration
• Global routing resources ensuring predictable timing and pin-to-pin performance
• In-system programmability via JTAG interface for flexible design updates

Complex Programmable Logic Devices Applications

• High-speed data acquisition systems requiring precise timing control
• Protocol conversion and bridging between legacy and modern digital interfaces
• Industrial automation controllers needing reliable state machine implementation
• Test and measurement equipment requiring configurable logic functions

Complex Programmable Logic Devices Procurement Notes

Verify the specific suffix 'I' corresponds to the industrial temperature range (-40°C to +85°C) as defined in the official datasheet. Confirm package type FTN256 matches the FineLine BGA specification. Ensure compatibility with programming tools supporting the ispMACH 4000V series architecture before procurement.

Complex Programmable Logic Devices Selection Notes

Select this model when 384 macrocells are sufficient for the design complexity. Compare against LC4256B if lower density is acceptable to reduce cost. Consider LC4512B if higher I/O count or greater logic density is required. Verify that the 1.8V core voltage aligns with the system's power supply constraints.

Complex Programmable Logic Devices Part Context

This component belongs to the ispMACH 4000V/B/C/Z family, which integrates architectures from earlier ispLSI 2000 and ispMACH 4A devices. The family is characterized by its global routing architecture, providing superior first-pass silicon success and timing predictability compared to traditional CPLD structures.

Complex Programmable Logic Devices Replacement Considerations

Direct pin-to-pin replacements within the same package are limited. The LC4384B-5FN256I may serve as an alternative if the temperature grade differs. Upgrading to the LC4512B provides more macrocells but requires schematic review due to potential pinout differences.