MCP413X datasheet(83/88 Pages) MICROCHIP

83 / 88 page

DS22060B-page 83

MCP413X/415X/423X/425X

APPENDIX A: REVISION HISTORY

Revision B (December 2008)

The following is the list of modifications:

Updated IPU specifications to specify test

conditions and new limit.

Updated DFN package in “Package Types (top

view)”, including Exposed Thermal Pad sample

(EP).

Added new descriptions in Section 3.0 “Pin

Descriptions”.

Added new Development Tool support items.

Updated Package Outline section.

Revision A (September 2007)

• Original Release of this Document.

APPENDIX B: MIGRATING FROM

THE MCP41XXX AND

MCP42XXX DEVICES

This is intended to give an overview of some of the

differences to be aware of when migrating from the

MCP41XXX and MCP42XXX devices.

B.1

MCP41XXX to MCP41XX

Differences

Here are some of the differences to be aware of:

SI pin is now SDI/SDO pin, and the contents of

the device memory can be read.

Need to address the Terminal Connect Feature

(TCON register) of MCP41XX.

MCP41XX supports software Shutdown mode.

New 5 k

Ω version.

MCP41XX have 7-bit resolution options.

Alternate

pinout

versions

(for

Rheostat

configuration).

Verify device’s electrical specifications.

Interface signals are now high voltage tolerant.

Interface signals now have internal pull-up

resistors.

B.2

MCP42XXX to MCP42XX

Differences

Here are some of the differences to be aware of:

Daisy chaining of devices is no longer

supported.

SDO pin allows contents of device memory to be

read.

Need to address the Terminal Connect Feature

(TCON register) of MCP42XX.

MCP42XX supports software Shutdown mode.

New 5 k

Ω version.

MCP42XX have 7-bit resolution options.

Alternate package/pinout versions (for Rheostat

configuration).

Verify device’s electrical specifications.

Interface signals are now high voltage tolerant

10. Interface signals now have internal pull-up

resistors.

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