LC4032V-25T48C

Overview

The LC4032V-25T48C is a Complex Programmable Logic Device (CPLD) from the Lattice ispMACH 4000V family. It features 32 macrocells and supports up to 32 I/O pins in a 48-pin TQFP package. The device operates at a maximum frequency of 400 MHz with a typical propagation delay of 2.5 ns. It functions on a 3.3 V supply voltage and is rated for commercial temperature ranges (0°C to +90°C). Key capabilities include In-System Programmability (ISP) via JTAG, supporting flexible design updates without removing the chip from the circuit board.

Feature Summary

• High performance: 400 MHz max frequency and 2.5 ns propagation delay
• In-System Programmability (ISP) via JTAG interface
• 32 Macrocells with 32 available I/Os
• 3.3 V operation with low power consumption

Applications

• Interface bridging between different logic families
• Address/data buffering and latching
• Simple state machine implementation
• Decoding logic for memory or peripheral control

Procurement Notes

Verify the specific suffix '25' indicates the speed grade corresponding to 2.5 ns propagation delay. Confirm the 'T48' designation matches the Thin Quad Flat Package (TQFP) with 48 leads. Ensure the 'C' suffix aligns with the required commercial temperature range specifications for the target application environment.

Selection Notes

Select this component when a small number of macrocells (32) is sufficient for the logic density requirements. The 400 MHz performance suits moderate-speed digital control tasks. Consider the TQFP-48 package constraints regarding pin count and thermal dissipation. Verify that the 3.3 V I/O levels are compatible with the connected system components.

Part Context

This part belongs to the ispMACH 4000V family, which offers high-density PLDs with ISP capability. It serves as a successor to earlier GAL-based designs, providing reprogrammability and higher performance. The family is known for non-volatile configuration, retaining data without external memory.

Replacement Considerations

Direct replacements within the same family include other speed grades of the LC4032V series, such as the LC4032V-75TN48C, noting that package and speed differences may affect timing. Cross-family migration to ispMACH 4000Z or LC4000V variants requires schematic and code adaptation due to architectural differences.