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MCP23S17

The MCP23S17 parts you have received conform

functionally to the Device Data Sheet (DS21952B),

except for the anomalies described below.

All of the issues listed here will be addressed in future

revisions of the MCP23S17 silicon.

1. Module: SPI Module

When IOCON.HAEN = 0 (hardware addressing dis-

abled): If the A2 pin is high, then the device must be

addressed as A2, A1, A0, = 1xx (i.e., OPCODE =

b”0100 1XX’.

Work around

•None

Clarifications/Corrections to the Data

Sheet:

In the Device Data Sheet (DS21952B), the following

clarifications and corrections should be noted.

•None

MCP23S17 Rev. A Silicon Errata

Summary of content (6 pages)

PAGE 1
MCP23S17 MCP23S17 Rev. A Silicon Errata The MCP23S17 parts you have received conform functionally to the Device Data Sheet (DS21952B), except for the anomalies described below. All of the issues listed here will be addressed in future revisions of the MCP23S17 silicon. Clarifications/Corrections to the Data Sheet: In the Device Data Sheet (DS21952B), the following clarifications and corrections should be noted. • None 1. Module: SPI Module When IOCON.
PAGE 2
MCP23S17 APPENDIX A: REVISION HISTORY Revision A (March 2007) • Initial release of this document, silicon issue (SPI Module). DS80311A-page 2 © 2007 Microchip Technology Inc.
PAGE 3
MCP23S17 APPENDIX B: SILICON REVISION HISTORY The following table and package marking information indicates how to determine the revision of the DSTEMP device. The revision information can be determined by the Year and Week Code of the manufacturer printed on the device. TABLE B-1: SILICON REVISION/DEVICE MARKING YYWWNNN Silicon Revision Start Date End Date Rev A2 XXXXNNN XXXXNNN In Production Rev A0 — Comments XXXXNNN Legend: “N” is any alphanumeric character.
PAGE 5
Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. • There are dishonest and possibly illegal methods used to breach the code protection feature.
PAGE 6
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