LC4032V-75T44C

Overview

The LC4032V-75T44C 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 within a 44-pin TQFP package. The device operates at a maximum frequency of 400 MHz with a typical propagation delay of 7.5 ns. It utilizes an EEPROM non-volatile memory technology for configuration, allowing for in-system programmability via JTAG. The component is designed for commercial temperature ranges, typically spanning 0°C to +90°C, and functions on a single 3.3V supply voltage.

Feature Summary

• High performance: 400 MHz max operating frequency with 7.5 ns propagation delay
• EEPROM-based non-volatile configuration enabling instant power-up operation
• Supports In-System Programming (ISP) and JTAG boundary scan testing
• 32 macrocells with flexible I/O architecture in a compact 44-TQFP package

Applications

• Address decoding and bus bridging in embedded systems
• Level translation between different voltage domains
• Simple state machine implementation for control logic
• Replacement for legacy GAL or PAL devices in existing designs

Procurement Notes

Verify the specific suffix 'T44C' against official Lattice documentation to confirm pinout compatibility and temperature grade. Ensure the ordering part number matches the required package variant, as minor suffix differences may indicate lead-free status or specific tape-and-reel packaging options rather than functional changes. Cross-reference with authorized distributors to confirm current availability and RoHS compliance status.

Selection Notes

Select this model when a small form factor CPLD with immediate power-up capability is required. The 32 macrocell count is suitable for moderate complexity logic functions. Consider the 7.5 ns speed grade if timing constraints are tight. Verify that the 3.3V I/O levels match the target system interfaces, as the device does not inherently support multiple voltage domains simultaneously without external level shifters.

Part Context

This component belongs to the Lattice ispMACH 4000V family, which succeeded the earlier ispMACH 4000A series. The 'V' designation indicates the specific generation within the 4000 family, offering improved performance over previous iterations while maintaining pin-to-pin compatibility with certain legacy parts. It serves as a bridge between simple discrete logic and more complex FPGAs.

Replacement Considerations

Direct replacements include the LC4032V-75TN44C, noting the potential difference in package marking or environmental compliance based on the 'N' suffix. The LC4032B-75TN44C is an older generation equivalent but may have different electrical characteristics or reliability specifications. Always verify datasheet revisions before substituting.