DESCRIPTION
Fast SCSI and Ultra SCSI require the use of active terminations at both ends of every cable segment in a SCSI system with single-ended drivers and receivers. Ultra SCSI requires support of active negation and hot plugging. The DS21T06 is fully compliant with these standards.
The DS21T06 integrates a low dropout regulator and 18 precise switched 110 ohms termination resistors into a 28-pin 300-mil SOIC package.

FEATURES
■ Fully compliant with SCSI-1, Fast SCSI and Ultra SCSI
■ Functional drop in replacement for the DS2106
■ Complimentary part to DS21T07 for wide SCSI
■ Provides active termination for 18 signal lines
■ 5% tolerance on termination resistors and voltage regulator
■ 5% tolerance on termination current
■ Low power down capacitance of 3 pF
■ Onboard thermal shutdown circuitry
■ SCSI bus hot plug compatible
■ Fully supports actively negated SCSI signals