MCP4161-503ESLASHP datasheet(83/88 Pages) MICROCHIP

83 / 88 page

DS22059B-page 83

MCP414X/416X/424X/426X

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 and QFN package in “Package

Types (top view)”

, to include Exposed Thermal

Pad samples (EP).

Added new descriptions in Section 3.0 “Pin

Descriptions”

Added new Development Tool support item.

Updated Package Outline section.

Revision A (August 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

MCP41XX are Non-Volatile

Alternate

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

B.2

MCP42XXX to MCP42XX

Differences

Here are some of the differences to be aware of:

Hardware Reset (RS) pin replace by Hardware

Write Protect (WP) pin

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

MCP42XX are Non-Volatile

Alternate package/pinout versions (for Rheostat

configuration)

10. Verify device’s electrical specifications

11. Interface signals are now high voltage tolerant

12. Interface signals now have internal pull-up

resistors

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