AM79C974 datasheet(135/153 Pages) AMD

135 / 153 page

Publication# 18681

Rev. A

Amendment /1

Issue Date: April 1994

Advanced

Micro

Devices

Am79C974

PCnet

TM-SCSI Combination Ethernet and SCSI Controller

for PCI Systems

AMENDMENT

This amendment corrects a few minor inaccuracies and adds or clarifies a few sections. Minor corrections should be

made on the existing data sheets. However, for ease of use, pages with more than a word or two of corrections are

printed with this amendment.

Details:

Page 12

(Reprinted as page 5 of this amendment)

CONNECTION DIAGRAM

Change the names of the following power pins:

— Change from VDD3B to VDDB.

— Change from VSS3B to VSSB.

— Change from VDDB to VDDBS.

— Change from VSSB to VSSBS.

Pages 14–15

(Reprinted as pages 6, 7 of this amendment)

PIN DESIGNATIONS, Listed by Pin Number and Pin Name

Change the names of the following power pins:

— Change from VDD3B to VDDB.

— Change from VSS3B to VSSB.

— Change from VDDB to VDDBS.

— Change from VSSB to VSSBS.

Page 17

(Reprinted as page 8 of this amendment)

PIN DESIGNATIONS, Quick Reference Pin Description

The number of each type of power pin is incorrect. The numbers should be:

— Change from VDD to VDD/DVDD, Digital Power, 5 pins

— Change from VDDB/VDD3B to VDDB/VDDBS, I/O Buffer Power, 5 pins

— Change from VSS to VSS/DVSS, Digital Ground, 9 pins

— Change from VSSB/VSS3B to VSSB/VSSBS, I/O Buffer Ground, 11 pins

PIN DESIGNATIONS, Listed By Driver Type

Change the IOH value for both TS3 and TS6 from –0.4 mA to –2.0 mA.

AM79C974 Datasheet(PDF) 135 Page - Advanced Micro Devices

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