LC4384B-75FT256I

Complex Programmable Logic Devices Overview

The LC4384B-75FT256I is a complex programmable logic device (CPLD) from the Lattice ispMACH 4000V family. It features 384 macrocells and 24 logic blocks, housed in a 256-ball fine-pitch ball grid array (FTBGA) package. The device supports system-in-system programming via JTAG and operates with an internal supply voltage of 3.0V to 3.6V. Maximum propagation delay is specified at 7.5 ns. The industrial temperature grade variant functions within a junction temperature range of 0°C to 90°C.

Complex Programmable Logic Devices Feature Summary

• 384 macrocells with individual clock, reset, preset, and enable controls
• SuperFAST architecture supporting frequencies up to 400 MHz
• 5V tolerant I/Os compatible with LVCMOS 3.3, LVTTL, and PCI interfaces
• In-system programmability via JTAG interface

Complex Programmable Logic Devices Applications

• High-density logic replacement
• Bus bridging and protocol conversion
• System control and monitoring
• Address decoding and memory interfacing

Complex Programmable Logic Devices Procurement Notes

Verify component status as this part number may be discontinued or subject to last-time buy notices. Confirm RoHS compliance status, as older manufacturing runs may not meet current environmental directives. Ensure EDA models are available for design integration. Check for specific packaging changes documented in product change notifications prior to ordering.

Complex Programmable Logic Devices Selection Notes

Select the 'B' speed grade for 7.5 ns maximum delay performance. Choose the 'I' suffix for industrial temperature operation (0°C to 90°C TJ). The FT256 package provides 192 I/O pins. Verify that the 3.3V core voltage aligns with system power rails. Consider the 5V tolerant inputs if interfacing with legacy 5V logic without level shifting.

Complex Programmable Logic Devices Part Context

This component belongs to the ispMACH 4000V family, which blends ispLSI 2000 and ispMACH 4A architectures. It utilizes a Global Routing Pool and Output Routing Pool for timing predictability. The family offers density migration options ranging from 32 to 512 macrocells across various packages including TQFP and BGA types.

Complex Programmable Logic Devices Replacement Considerations

Direct pin-to-pin replacements within the same family include LC4384V-75FT256I for commercial temperature variants. Cross-family migration to MachXO3 or iCE40 requires schematic redesign due to architectural differences. Verify that alternative CPLDs offer comparable macrocell counts and I/O density.