LC4384B-75F256I

Complex Programmable Logic Devices Overview

The LC4384B-75F256I is a Complex Programmable Logic Device (CPLD) belonging to the ispMACH 4000V family, manufactured by Lattice Semiconductor Corporation. It features 24 logic blocks and 384 macrocells, providing high-density programmability within a compact footprint. The device supports In-System Programming (ISP) for flexible design updates. It operates with an internal supply voltage range of 3V to 3.6V and guarantees a maximum propagation delay (tpd) of 7.5 ns. The component is housed in a 256-ball FineLine BGA package measuring 17x17 mm and is rated for industrial operating temperatures from 0°C to 90°C.

Complex Programmable Logic Devices Feature Summary

• High-density architecture with 384 macrocells and 192 I/O pins
• In-System Programmability (ISP) capability
• Maximum propagation delay of 7.5 ns
• Industrial temperature range operation (0°C to 90°C)

Complex Programmable Logic Devices Applications

• Interface bridging between different voltage domains
• Address/data bus buffering
• State machine implementation
• Logic replacement for legacy PLDs

Complex Programmable Logic Devices Procurement Notes

Verify the specific suffix 'I' confirms the industrial temperature grade (-0°C to +90°C). Confirm the 'B' variant designation against current manufacturer selectors as product lines evolve. Check RoHS compliance status, noting that older revisions may differ from current production runs. Ensure the FTBGA-256 package availability aligns with current manufacturing cycles.

Complex Programmable Logic Devices Selection Notes

Select this model when 384 macrocells are required with a 7.5 ns speed grade. Compare against the LC4384V series if higher performance or different voltage options are needed. Verify that the 256-pin FTBGA package fits the board space constraints. Consider the LC4384Z series if lower power consumption is a primary design driver.

Complex Programmable Logic Devices Part Context

This part belongs to the Lattice ispMACH 4000V family, designed for high-performance CPLD applications. It serves as a successor to earlier ispLSI and ispPAC families, offering enhanced density and speed. The LC4384B variant specifically targets industrial and commercial applications requiring reliable, non-volatile logic control.

Complex Programmable Logic Devices Replacement Considerations

Direct pin-to-pin replacements include other LC4384 variants with compatible packages, such as LC4384V-75FT256C, subject to electrical parameter verification. Cross-family migration to iCE40 FPGAs requires significant design retooling and is not a direct drop-in replacement.