LC4032V-75TN44I

Overview

The LC4032V-75TN44I is a Complex Programmable Logic Device (CPLD) from Lattice Semiconductor's ispMACH 4000V family. It features 32 macrocells and 30 user I/O pins housed in a 44-pin TQFP package. The device operates on a 3.3 V supply with a maximum propagation delay of 7.5 ns and supports frequencies up to 400 MHz. It utilizes EEPROM technology for non-volatile configuration, allowing for in-system programmability. The industrial temperature range spans from -40°C to +105°C, ensuring reliable performance in demanding environments.

Feature Summary

• 32 Macrocells with 30 User I/Os
• 7.5 ns Maximum Propagation Delay
• EEPROM Non-Volatile Configuration
• -40°C to +105°C Industrial Temperature Range

Applications

• General-purpose digital logic replacement
• Interface bridging between different voltage domains
• State machine implementation in embedded systems

Procurement Notes

Verify the suffix 'I' confirms the industrial temperature grade (-40°C to +105°C). Confirm the 'TN44' designation corresponds to the TQFP-44 surface-mount package. Ensure compatibility with standard JTAG programming interfaces for in-system configuration. Check RoHS compliance status against current manufacturing revisions.

Selection Notes

Select this model when 32 macrocells are sufficient for the design complexity. The 7.5 ns speed grade suits moderate-frequency applications requiring deterministic timing. Compare against the LC4032V-75TN44C if commercial temperature range (0°C to +70°C) is acceptable, as it may offer different availability. Ensure the 44-pin TQFP footprint fits the PCB layout constraints.

Part Context

This component belongs to the ispMACH 4000V family, designed for low-power, high-density CPLD applications. It serves as a successor to earlier ispMACH devices, offering improved performance and lower power consumption while maintaining pin-to-pin compatibility with legacy parts in some form factors.

Replacement Considerations

Direct pin-compatible replacements within the same density include other variants in the LC4032V series with different package options or temperature grades. Cross-family migration to higher-density devices like the LC4064V requires schematic and firmware verification.