LX5250CDB

Overview

The LX5250CDB is a nine-line active terminator designed for SCSI parallel bus applications. It provides low capacitance and low power consumption features to maintain signal integrity during disconnect modes. The device supports SCSI 1, 2, 3, and Ultra SCSI standards. It includes logic command disconnect functionality, current limit protection, and thermal protection mechanisms.

Feature Summary

• Low output capacitance during disconnect mode
• Logic command disconnects all termination lines
• Current limit and thermal protection

Applications

• SCSI parallel bus termination
• Hot swap compatible systems
• High-speed data communication interfaces

Procurement Notes

Verify the exact manufacturer designation as Microsemi Corporation may refer to legacy branding now part of Microchip Technology. Confirm the specific suffix 'CDB' matches the required package and temperature grade in official datasheets. Check for obsolescence status or alternative recommendations from the current manufacturer before procurement.

Selection Notes

Select this component for SCSI bus designs requiring active termination with low power dissipation. Ensure compatibility with the specific SCSI standard version in use. Verify that the package type meets the PCB layout requirements. Consider the disconnect pin configuration for system power management strategies.

Part Context

This component belongs to the family of SCSI bus terminators. Active terminators are preferred over passive ones for high-speed SCSI standards to reduce reflections and improve signal quality. The LX5250 series offers integrated regulation and protection features suitable for complex bus architectures.

Replacement Considerations

Check for direct replacements like LX5211CDP or LX5212CDP which share similar nine-line active termination functions. Verify pinout compatibility and electrical specifications before substitution. Consult the manufacturer's cross-reference guide for updated part numbers.