UCC5630MWPTR/81364

Overview

The UCC5630MWPTR/81364 is a 9-line SCSI bus terminator manufactured by Texas Instruments. It functions as an integrated signal termination device for SCSI interfaces, designed to maintain signal integrity on multi-drop buses. The component operates within a supply voltage range of 2.7 V to 5.25 V and dissipates up to 2 W of power. It features a fixed termination resistance of 105 Ohms and draws a typical operating current of 20 mA. The device supports surface-mount installation in an SSOP-36 package and is rated for operation between 0°C and +70°C.

Feature Summary

• Provides dedicated termination for 9-line SCSI bus architectures
• Integrates fixed 105 Ohm resistance for impedance matching
• Supports wide supply voltage operation from 2.7 V to 5.25 V

Applications

• SCSI bus termination in legacy computer systems
• Peripheral interface circuitry requiring signal integrity maintenance
• Industrial control systems utilizing SCSI communication protocols

Procurement Notes

Verify the specific suffix /81364 against manufacturer documentation to confirm exact revision and testing criteria. Ensure compatibility with existing 9-line SCSI designs before integration. Check RoHS status as indicated sources may vary. Confirm availability through authorized channels due to potential end-of-life status associated with older interface families.

Selection Notes

Select this component specifically for 9-line SCSI applications requiring precise termination. Compare against the UCC5631A series if different line counts or voltage ranges are needed. Verify package compatibility with PCB layout constraints. Consider thermal management requirements given the 2 W power dissipation rating in enclosed environments.

Part Context

This part belongs to the UCC5630 family of SCSI terminators. It serves as a specialized interface IC for managing signal reflections in parallel data buses. The device complements other Texas Instruments interface solutions by providing passive termination capabilities without active logic processing, ensuring stable bus states during idle periods.

Replacement Considerations

Public confirmed substitute part numbers: UCC5631AMWP.