MICROCHIP MCP9800 User’s Guide

MCP9800
Temperature Data Logger
Demo Board User’s Guide
© 2005 Microchip Technology Inc. DS51593A
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®
8-bit MCUs, KEELOQ
®
code hopping
DS51593A-page ii © 2005 Microchip Technology Inc.
MCP9800 TEMPERATURE DATA
LOGGER USER’S GUIDE
Table of Contents
Preface ........................................................................................................................... 1
Chapter 1. Product Overview
1.1 Introduction ..................................................................................................... 5
1.2 What is the MCP9800 Temperature Data Logger Demo Board? ................... 5
1.3 What the MCP9800 Temperature Data Logger Demo Board Kit Includes ..... 5
Chapter 2. Installation and Operation
2.1 Introduction ..................................................................................................... 7
2.2 Features ......................................................................................................... 7
2.3 Getting Started ............................................................................................... 7
2.4 Functional Description .................................................................................. 10
Appendix A. Schematic and Layouts
A.1 Introduction .................................................................................................. 13
A.2 Board Schematic ........................................................................................ 14
A.3 Board - Silk-screen Layer ........................................................................... 15
A.4 Board - Bottom Layer ................................................................................. 15
Appendix B. Bill Of Materials (BOM)
Worldwide Sales and Service .................................................................................... 18
© 2005 Microchip Technology Inc. DS51593A-page iii
MCP9800 Temperature Data Logger User’s Guide
NOTES:
DS51593A-page iv © 2005 Microchip Technology Inc.
MCP9800 TEMPERATURE DATA
LOGGER USER’S GUIDE

Preface

NOTICE TO CUSTOMERS
All documentation becomes dated, and this manual is no exception. Microchip tools and documentation are constantly evolving to meet customer needs, so some actual dialogs and/or tool descriptions may differ from those in this document. Please refer to our web site (www.microchip.com) to obtain the latest documentation available.
Documents are identified with a “DS” number. This number is located on the bottom of each page, in front of the page number. The numbering convention for the DS number is “DSXXXXXA”, where “XXXXX” is the document number and “A” is the revision level of the document.

INTRODUCTION

This chapter contains general information that will be useful to know before using the MCP9800 Temperature Data Logger Demo Board. Items discussed in this chapter include:
• Document Layout
• Conventions Used in this Guide
• Recommended Reading
• The Microchip Web Site
• Customer Support
• Document Revision History

DOCUMENT LAYOUT

This document describes how to use the MCP9800 Temperature Data Logger Demo Board. The manual layout is as follows:
Chapter 1. “Product Overview” – Important information about the MCP9800
Temperature Data Logger Demo Board.
Chapter 2. “Installation and Operation” – This chapter includes a detailed
description of each function of the demo board and instructions for how to begin using the board.
Appendix A. “Schematic and Layouts” – Shows the schematic and layout
diagrams for the MCP9800 Temperature Data Logger Demo Board.
Appendix B. “Bill Of Materials (BOM)” – Lists the parts used to build the
MCP9800 Temperature Data Logger Demo Board.
© 2005 Microchip Technology Inc. DS51593A-page 1
MCP9800 Temperature Data Logger User’s Guide

CONVENTIONS USED IN THIS GUIDE

This manual uses the following documentation conventions:
DOCUMENTATION CONVENTIONS
Description Represents Examples
Arial font:
Italic characters Referenced books MPLAB
Emphasized text ...is the only compiler...
Initial caps A window the Output window
A dialog the Settings dialog A menu selection select Enable Programmer
Quotes A field name in a window or
dialog
Underlined, italic text with right angle bracket
Bold characters A dialog button Click OK
N‘Rnnnn A number in Verilog
Text in angle brackets < > A key on the keyboard Press <Enter>, <F1>
Courier New font:
Plain Courier New Sample source code #define START
Italic Courier New A variable argument file.o, where file can be
Square brackets [ ] Optional arguments mcc18 [options] file
Ellipses... Replaces repeated text var_name [,
A menu path File>Save
A tab Click the Power tab
where N is the total number of digits, R is the radix and n is a digit.
Filenames autoexec.bat File paths c:\mcc18\h Keywords _asm, _endasm, static Command-line options -Opa+, -Opa- Bit values 0, 1 Constants 0xFF, ‘A’
Represents code supplied by user
®
format,
“Save project before build”
4‘b0010, 2‘hF1
any valid filename
[options]
var_name...] void main (void)
{ ... }
®
IDE User’s Guide

RECOMMENDED READING

This user's guide describes how to use MCP9800 Temperature Data Logger Demo Board. The following Microchip documents are available and recommended as supple­mental reference resources.
MCP9800/1/2/3 Data Sheet, “2-Wire High-Accuracy Temperature Sensor” (DS21909)
This data sheet provides detailed information regarding the MCP9800 device.
AN1001 Application Note, “IC Temperature Sensor Accuracy Compensation with a PICmicro
This application note provides detailed information regarding how to compensate the MCP9800 output for higher accuracy.
DS51593A-page 2 © 2005 Microchip Technology Inc.
®
Microcontroller” (DS01001)

THE MICROCHIP WEB SITE

Microchip provides online support via our web site at www.microchip.com. This web site is used as a means to make files and information easily available to customers. Accessible by using your favorite Internet browser, the web site contains the following information:
Product Support – Data sheets and errata, application notes and sample
programs, design resources, user’s guides and hardware support documents, latest software releases and archived software
General Technical Support – Frequently Asked Questions (FAQs), technical
support requests, online discussion groups, Microchip consultant program member listing
Business of Microchip – Product selector and ordering guides, latest Microchip
press releases, listing of seminars and events, listings of Microchip sales offices, distributors and factory representatives

CUSTOMER SUPPORT

Users of Microchip products can receive assistance through several channels:
• Distributor or Representative
• Local Sales Office
• Field Application Engineer (FAE)
• Technical Support
• Development Systems Information Line Customers should contact their distributor, representative or field application engineer
(FAE) for support. Local sales offices are also available to help customers. A listing of sales offices and locations is included in the back of this document.
Technical support is available through the web site at: http://support.microchip.com
Preface

DOCUMENT REVISION HISTORY

Revision A (December 2005)
• Initial Release of this Document.
© 2005 Microchip Technology Inc. DS51593A-page 3
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