LC4032C-10TN44I

Overview

The LC4032C-10TN44I is a complex programmable logic device (CPLD) from the ispMACH 4000C family by Lattice Semiconductor. It features 32 macrocells, 36 logic blocks, and 30 user I/Os in a 44-pin TQFP package. The device utilizes non-volatile EEPROM memory for configuration, supporting in-system programming and reprogrammability. It operates within a commercial temperature range of 0°C to 70°C with a supply voltage between 3.0V and 3.6V. The maximum propagation delay is 10 ns, enabling reliable digital logic implementation.

Feature Summary

• Non-volatile EEPROM architecture allows instant-on operation without external configuration memory.
• Supports In-System Programmability (ISP) via JTAG interface for flexible field updates.
• High-density logic structure with 32 macrocells and 36 macrocell-compatible logic blocks.
• Commercial grade operating temperature range of 0°C to 70°C.

Applications

• Address decoding and bus bridging in embedded systems.
• Translation between different logic families or voltage levels.
• State machine implementation for control logic.
• Replacement for legacy GAL devices in industrial equipment.

Procurement Notes

Verify the specific suffix 'I' denotes the commercial temperature range (0°C to 70°C) rather than the industrial range (-40°C to 85°C). Confirm the package type is 44-pin Thin Quad Flat Package (TQFP) with a 0.8 mm pitch. Ensure the design accounts for the EEPROM endurance specifications typical of this family during development.

Selection Notes

Select this component when non-volatile storage is required to eliminate external configuration chips. Compare against the LC4032V series if lower power consumption is critical, as the V-series typically offers reduced static current. Verify that the 32 macrocell density meets the logic requirements before considering higher-density options like the LC4032Z.

Part Context

This part belongs to the ispMACH 4000C family, designed to replace older GAL and PAL devices. It bridges the gap between simple discrete logic and high-complexity FPGAs. The family is known for its deterministic timing and ease of use in standard digital design flows using tools like Lattice Diamond.

Replacement Considerations

Direct pin-to-pin replacements include other variants within the LC4032 family, such as LC4032V-10TN44I, provided the power and temperature constraints align. Cross-family migration to LC4032Z requires schematic review due to architectural differences in macrocell structure.