LC4032B-5TN44C

Overview

The LC4032B-5TN44C is a Complex Programmable Logic Device (CPLD) from the Lattice ispMACH 4000V/B/C/Z family. It features 32 macrocells and 36 logic blocks within a 44-pin TQFP package. The device supports In-System Programmability (ISP) via JTAG using non-volatile EEPROM memory technology. It operates with a core voltage of 2.5 V and includes 5 V tolerant I/Os compatible with LVCMOS 3.3, LVTTL, and PCI interfaces. The component provides 30 user I/O pins and two dedicated inputs.

Feature Summary

• ispMACH 4000 architecture with 32 macrocells and 36 logic blocks
• Non-volatile EEPROM configuration storage for instant power-up operation
• In-System Programmability (ISP) support via JTAG interface
• 5 V tolerant I/Os supporting LVCMOS 3.3, LVTTL, and PCI standards

Applications

• Control logic in data center switch fabrics
• Platform Firmware Resilience (PFR) control PLDs
• Sequencing and side-channel logic for CPU systems
• Glue logic for multi-port card onboarding

Part Context

This part belongs to the ispMACH 4000V/B/C/Z family, which blends ispLSI 2000 and ispMACH 4A architectures. The 'B' suffix indicates a 2.5 V core voltage variant. The family utilizes Global Routing Pools and Output Routing Pools to ensure timing predictability and pin-out retention across density migrations.

Replacement Considerations

Devices sharing the same macrocell count and package include the LC4032V-5TN44C (3.3 V core) and LC4032C-5TN44C (1.8 V core). Substitutes must match the 44-pin TQFP footprint and verify voltage compatibility with the target system's I/O levels.