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ST21S07A

Features: FULLY COMPLIANT WITH SCSI, SCSI-2 AND EMERGING SCSI-E STANDARDSPROVIDES ACTIVE TERMINATION FOR NINE SIGNAL LINESLOW DROPOUT (0.5V) VREGS:2.85VFACTORY TRIMMED TERMINATION 110Ω(±2%)POWER DOWN MODE ISOLATES TERMINATION RESISTORS FROM THE BUSFULLY SUPPORTS ACTIVELY NEGATED SCSI SIGNALS...

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SeekIC No. : 004506374 Detail

ST21S07A: Features: FULLY COMPLIANT WITH SCSI, SCSI-2 AND EMERGING SCSI-E STANDARDSPROVIDES ACTIVE TERMINATION FOR NINE SIGNAL LINESLOW DROPOUT (0.5V) VREGS:2.85VFACTORY TRIMMED TERMINATION 110Ω(±2%)POW...

ST21S07A Data Sheet

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Part Number:
ST21S07A
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

FULLY COMPLIANT WITH SCSI, SCSI-2  AND EMERGING SCSI-E STANDARDS
PROVIDES ACTIVE TERMINATION FOR  NINE SIGNAL LINES
LOW DROPOUT (0.5V) VREGS:2.85V
FACTORY TRIMMED TERMINATION 110Ω(±2%)
POWER DOWN MODE ISOLATES  TERMINATION RESISTORS FROM THE  BUS
FULLY SUPPORTS ACTIVELY NEGATED  SCSI SIGNALS
COMPATIBLE TO THE DS2107, DS2107A  AND DS21S07
ONBOARD THERMAL SHUTDOWN CIRCUITRY
AVAILABLE IN SO-16L AND TSSOP20
SCSI BUS HOT PLUG-COMPATIBLE


Pinout

Connection Diagram


Specifications

Symbol Parameter Value Unit
VPIN Voltage on Any Pin Relative to Ground -1 to 7 V
Tstg Storage Temperature Range -55 to +150 °C
Top Operating Junction Temperature Range 0 to +70 °C



Description

The SCSI-2 and SCSI-3 standards recommend the use of active terminations at both ends of every cable segment in a SCSI system with a single-ended drivers and reveivers. The ST21S07A SCSI terminator, which is fully compliant with these standands, enables the designer to gain the benefits of active termination:greater immunity to voltages drop on the TERMPWR (TERMination PoWeR) line, enhanced high level noise immunity, intrinsic TERMPWR decouplig, and very low quiescent current consumption.

The ST21S07A integrates a regulator and nine precise switched 110Ω termination resistors into a monolithic IC. The ST21S07A can be electrically isolatesd from the SCSI bus without physical removal from the SCSI device.




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