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Preface – Avago Technologies LSI53C180 User Manual

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Preface

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Preface

This manual provides a description of the LSI53C180 Ultra160 SCSI Bus
Expander chip that supports all combinations of Single-Ended and Low
Voltage Differential SCSI bus conversions.

Currently the LSI53C140 is offered in a 192-BGA package so that
customers who are designing Ultra2 can easily upgrade to Ultra160.
Refer to System Engineering Note S11006 for design considerations
using the LSI53C140 and LSI53C180.

Audience

This manual assumes some prior knowledge of current and proposed
SCSI standards. For background information, please contact:

ANSI

11 West 42nd Street
New York, NY 10036
(212) 642-4900
Ask for document number X3.131-199X (SCSI-2)

Global Engineering Documents

15 Inverness Way East
Englewood, CO 80112
(800) 854-7179 or (303) 397-7956 (outside U.S.)
FAX (303) 397-2740
Ask for document number X3.131-1994 (SCSI-2) or
X3.253 (SCSI Parallel Interface-3 (SPI-3))