DS2108S/TR

Overview

The DS2108S/TR is a SCSI termination and switching integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. Designed for SCSI, HVD, and SE applications, it provides nine termination points within a 24-pin SOIC package. The device operates on a supply voltage ranging from 4V to 5.25V and supports surface mount installation. It functions as a signal terminator suitable for high-speed data transmission environments requiring precise impedance control.

Feature Summary

• Integrates SCSI, High Voltage Differential (HVD), and Single-Ended (SE) termination capabilities into a single component.
• Provides nine distinct termination points to manage signal integrity across multiple bus lines.
• Supports switch functionality to isolate or connect termination networks dynamically.

Applications

• SCSI bus termination in computer peripheral systems
• High Voltage Differential (HVD) interface circuits
• Single-Ended (SE) SCSI connection termination

Procurement Notes

Verify the specific suffix designation carefully, as the TR variant indicates tape and reel packaging which differs from standard tube packaging. Confirm availability status with authorized distributors, as this component may be subject to discontinuation or limited stock constraints. Ensure the supplier provides original manufacturer documentation to validate authenticity before purchase.

Selection Notes

Select this component when designing SCSI interfaces requiring combined termination and switching logic. Ensure the system power supply remains within the 4V to 5.25V operating range. Verify that the 24-SOIC package dimensions fit the PCB layout constraints. Consider thermal dissipation requirements if multiple units are placed in close proximity on the board.

Part Context

This part belongs to the Maxim Integrated line of interface ICs focused on SCSI standards. It addresses the need for compact, multi-function termination solutions in legacy and industrial computing hardware. The device simplifies board design by replacing discrete resistor networks and mechanical switches with an integrated semiconductor solution.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult official manufacturer obsolescence notices for potential recommended replacements or updated series equivalents.