UCC5611DWP

Overview

The UCC5611DWP is a low-voltage differential (LVD) terminator integrated circuit manufactured by Unitrode. It is designed for SCSI bus applications, providing termination for up to nine lines within a single package. The device operates on a supply voltage range of 2.7V to 5.25V and functions within a commercial temperature range of 0°C to 70°C. It utilizes a 28-pin plastic shrink small outline package (SSOP) with a 0.635mm terminal pitch. The internal architecture employs BICMOS technology to achieve efficient signal termination.

Feature Summary

• Integrates termination for multiple SCSI lines in a compact surface-mount package
• Operates across standard LVD supply voltage ranges without external regulation
• Utilizes BICMOS technology for reliable signal integrity in high-speed interfaces

Applications

• SCSI bus termination for peripheral devices
• Low-voltage differential signaling interface protection
• High-density electronic system backplanes

Procurement Notes

Verify the manufacturer designation carefully, as Unitrode was acquired by Texas Instruments. Ensure the specific suffix matches the required package type and that the component meets current RoHS compliance standards for your assembly process. Confirm availability status as legacy components may have limited production runs.

Selection Notes

Select this component when designing systems requiring multi-line LVD termination in space-constrained environments. Compare pinout compatibility with existing PCB layouts. Verify that the operating temperature range aligns with the intended industrial or commercial application requirements before finalizing the bill of materials.

Part Context

This component belongs to the family of low-voltage differential terminators used primarily in SCSI architectures. It consolidates multiple discrete termination resistors into a single IC, reducing board space and simplifying assembly compared to resistor network alternatives. The SSOP package facilitates automated surface-mount placement.

Replacement Considerations

Check for direct equivalents from Texas Instruments, which absorbed Unitrode's product line. Verify pin-to-pin compatibility with any proposed substitute to ensure seamless integration without redesigning the host circuit board.