Dallas Semiconductor DS2107A SCSI Terminator Datasheet

The DS2107A SCSI Terminator provides active termination for 9 signal lines and is fully compliant with SCSI and SCSI-2 standards. It is backward compatible with the DS2107S.

Brand: Dallas Semiconductor
Category: Other Electronics
Document type: Datasheet
Language: English
Pages: 7
File format: PDF
File size: 93 KB
Published: 03 July, 2012
Updated: 30 September, 2023
MD5 checksum: 1CAFF72B30065867245B69FEEB2CC22F
PDF: Dallas Semiconductor DS2107A SCSI Terminator Datasheet PDF

About this manual

The DS2107A is a SCSI Terminator integrated circuit fully compliant with SCSI and SCSI-2 standards. It integrates a regulator and nine precise switched 110 ohm termination resistors into a monolithic IC to provide active termination for SCSI bus segments. The device handles actively negated SCSI signals and includes onboard thermal shutdown circuitry.

What's inside

Features
Functional Description
Pin Assignment
Pin Description
Absolute Maximum Ratings
Recommended Operating Conditions
DC Characteristics
Regulator Characteristics
Package Dimensions

Specifications

Output Voltage (VREF)	2.79V to 2.91V
Sink Current	200 mA
Power Down Current	100 uA
Termination Power Voltage	4.00V to 5.25V

Frequently asked questions

What is the typical quiescent current consumption?

When all lines settle in the quiescent state, the regulator will consume about 5 mA.

What is the typical output voltage of the onboard regulator?

The regulator produces a precise output voltage level of 2.85V.

How much current can the terminator sink to handle actively negated signals?

The buffer is capable of sinking up to 200 mA when handling actively negated SCSI signals.

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