LC4384B-5TN176C

Complex Programmable Logic Devices Overview

The LC4384B-5TN176C is a Complex Programmable Logic Device (CPLD) belonging to the ispMACH 4000B family, manufactured by Lattice Semiconductor. It features 384 macrocells and supports In-System Programming (ISP). The device operates with supply voltages of 3.3V, 2.5V, or 1.8V and utilizes a 176-pin Thin Quad Flat Package (TQFP). Key electrical parameters include a maximum operating frequency ($f_{MAX}$) of 156 MHz and a propagation delay ($t_{PD}$) of 5 ns. It includes up to four global clock pins with programmable polarity control and supports JTAG boundary scan for testing.

Complex Programmable Logic Devices Feature Summary

• High-performance CPLD architecture with 384 macrocells and 128 I/O lines
• Maximum operating frequency of 156 MHz with 5 ns propagation delay
• Supports multiple voltage levels: 3.3V, 2.5V, and 1.8V
• In-System Programmability (ISP) via JTAG interface

Complex Programmable Logic Devices Applications

• High-density logic replacement in industrial control systems
• Interface bridging between different voltage domains in communication equipment
• State machine implementation in embedded systems requiring non-volatile configuration

Complex Programmable Logic Devices Procurement Notes

Verify component authenticity through authorized Lattice Semiconductor distributors. Confirm RoHS compliance status as older batches may contain lead. Check moisture sensitivity level (MSL 3) requirements for storage and handling. Ensure design files are compatible with the specific speed grade (-5) and package variant.

Complex Programmable Logic Devices Selection Notes

Select this model when 384 macrocells and 128 I/Os are required within a 176-pin TQFP footprint. The -5 speed grade offers a balance of performance (156 MHz) and power consumption. Compare against the LC4384C series for updated process technology or the LC4384V series for higher speed grades if timing constraints exceed 156 MHz.

Complex Programmable Logic Devices Part Context

This component is part of the ispMACH 4000B family, which succeeded the ispMACH 4000A/V families. It combines the high density of the ispLSI 2000 architecture with the low power features of the ispMACH 4A architecture. The family is designed for applications requiring robust global routing pools and predictable timing characteristics.

Complex Programmable Logic Devices Replacement Considerations

Direct pin-to-pin replacements within the same package and pin count include other members of the LC4384B family with different speed grades (e.g., LC4384B-35TN176C for slower speeds). For upgraded performance, consider the LC4384C-5TN176C from the next generation family, ensuring software tool compatibility.