UCC5631AMWPTR

Overview

The UCC5631AMWPTR is a SCSI termination integrated circuit manufactured by Texas Instruments, designed for Low Voltage Differential (LVD) and Single-Ended (SE) signaling applications. It provides nine termination lines within a 36-pin SSOP package. The device operates on a supply voltage ranging from 2.7 V to 5.25 V, with a maximum power dissipation of 2 W. It functions reliably across an operating temperature range of 0°C to +70°C and draws a typical operating supply current of 20 mA. The unit weight is approximately 723.4 mg.

Feature Summary

• Integrates nine termination resistors for comprehensive SCSI bus termination
• Supports both LVD and SE signaling standards for flexible interface compatibility
• Operates within standard 3V and 5V logic supply ranges

Applications

• SCSI peripheral devices requiring LVD or SE termination
• Computer storage subsystems utilizing SCSI interfaces
• Industrial equipment with SCSI connectivity requirements

Procurement Notes

Verify the specific suffix TR indicates tape and reel packaging versus tube variants. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the component meets environmental regulations applicable to the target deployment region. Cross-reference the full part number against current lifecycle notifications to confirm availability status.

Selection Notes

Select this component when designing systems requiring integrated SCSI termination for LVD or SE buses. Verify that the 36-SSOP package fits the available PCB footprint constraints. Ensure the design accommodates the 20 mA supply current and 2 W power dissipation limits under worst-case thermal conditions. Confirm compatibility with the system's operating voltage range between 2.7 V and 5.25 V.

Part Context

This component belongs to the UCC5631A family of SCSI interface ICs. It serves as a specialized solution for terminating SCSI buses, simplifying board layout compared to discrete resistor networks. The device consolidates multiple termination functions into a single integrated circuit, reducing component count and potential signal integrity issues associated with external components.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Texas Instruments documentation for any direct pin-to-pin replacements or updated series members.