LC4384B-5T176I

Complex Programmable Logic Devices Overview

The LC4384B-5T176I is a high-density, in-system programmable complex programmable logic device (CPLD) from the Lattice CPLD4000V family. It features 400 macrocells and operates with supply voltages of 3.3V, 2.5V, or 1.8V. The device utilizes a SuperFast non-volatile Flash technology, allowing for rapid reprogramming without external memory. It is housed in a 176-pin Thin Quad Flat Package (TQFP) with a 1.0 mm pitch. Key electrical characteristics include a maximum system clock frequency of 250 MHz and an I/O transition time of less than 2 ns.

Complex Programmable Logic Devices Feature Summary

• SuperFast Non-Volatile Flash Technology: Enables in-system programming and multiple reconfigurations without requiring external configuration memory.
• High Performance: Supports a maximum system clock frequency of 250 MHz with I/O transition times under 2 ns.
• Flexible Voltage Operation: Compatible with 3.3V, 2.5V, and 1.8V I/O standards, facilitating mixed-voltage system designs.
• Advanced Packaging: Available in a 176-pin TQFP package (1.0 mm pitch), suitable for space-constrained applications.

Complex Programmable Logic Devices Applications

• High-speed interface bridging between processors and peripherals.
• Address decoding and bus arbitration in embedded systems.
• State machine implementation for industrial control logic.
• Replacement for legacy GALs and PALs in modern designs.

Complex Programmable Logic Devices Procurement Notes

Verify the specific suffix codes against official Lattice Semiconductor documentation to confirm temperature grade and package variant. Ensure that the ordering information matches the exact part number LC4384B-5T176I to avoid discrepancies in voltage levels or pinout configurations.

Complex Programmable Logic Devices Selection Notes

Select this component when a design requires moderate logic density (400 macrocells) with fast I/O response times. It is suitable for applications needing frequent field updates due to its non-volatile Flash architecture. Compare against the LC4000VE series if lower power consumption is critical, as the B-series offers higher speed performance.

Complex Programmable Logic Devices Part Context

This device belongs to the CPLD4000V family, which represents Lattice's high-performance CPLD offerings. The family is designed to replace discrete logic components, reducing board space and power consumption while increasing system reliability through integration.

Complex Programmable Logic Devices Replacement Considerations

Direct replacements may include other devices within the CPLD4000V family with similar macrocell counts, such as the LC4256B or LC4512B, provided pin compatibility and timing requirements are met. Verify pin-to-pin compatibility before substitution.