Olimex Mod-rtc User Manual
MOD-RTC development board
USER’S MANUAL
Initial release, May 2012
Designed by OLIMEX Ltd, 2011
All boards produced by Olimex LTD are ROHS compliant
OLIMEX© 2012 MOD-RTC User's Manual
Disclaimer:
© 2012 Olimex Ltd. Olimex®, logo and combinations thereof, are registered trademarks of Olimex Ltd.
Other terms and product names may be trademarks of others.
The information in this document is provided in connection with Olimex products. No license, express
or implied or otherwise, to any intellectual property right is granted by this document or in connection
with the sale of Olimex products.
Neither the whole nor any part of the information contained in or the product described in this document may
be adapted or reproduced in any material from except with the prior written permission of the copyright
holder.
The product described in this document is subject to continuous development and improvements. All
particulars of the product and its use contained in this document are given by OLIMEX in good faith.
However all warranties implied or expressed including but not limited to implied warranties of
merchantability or fitness for purpose are excluded. This document is intended only to assist the reader in the
use of the product. OLIMEX Ltd. shall not be liable for any loss or damage arising from the use of any
information in this document or any error or omission in such information or any incorrect use of the
product.
Thank you for purchasing MOD-RTC development board assembled by
OLIMEX LTD
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OLIMEX© 2012 MOD-RTC User's Manual
Table of Contents
CHAPTER 1.................................................................................................................5
OVERVIEW.................................................................................................................5
1. Introduction to the chapter.......................................................................................................5
1.1 Features.....................................................................................................................................5
CHAPTER 2 ................................................................................................................6
SETTING UP THE MOD-RTC MODULE...............................................................6
2. Introduction to the chapter.......................................................................................................6
2.1 Electrostatic warning...............................................................................................................6
2.2 Requirements...........................................................................................................................6
2.3 Powering the module...............................................................................................................6
2.4 Duinomite note.........................................................................................................................6
CHAPTER 3.................................................................................................................8
MOD-RTC BOARD DESCRIPTION........................................................................8
3. Introduction to the chapter.......................................................................................................8
3.1 Layout (bottom view)...............................................................................................................8
CHAPTER 4.................................................................................................................9
THE PCF8563 CMOS REAL-TIME CLOCK.........................................................9
4. Introduction to the chapter.......................................................................................................9
4.1 The PCF8563............................................................................................................................9
CHAPTER 5 ..............................................................................................................10
CONTROL CIRCUITY............................................................................................10
5. Introduction to the chapter.....................................................................................................10
5.1 Reset........................................................................................................................................10
5.2 Clock ......................................................................................................................................10
CHAPTER 6...............................................................................................................11
HARDWARE..............................................................................................................11
6. Introduction to the chapter.....................................................................................................11
6.1 BAT connector.......................................................................................................................11
6.2 UEXT......................................................................................................................................11
6.3 Jumper description................................................................................................................12
CHAPTER 7...............................................................................................................13
SCHEMATICS...........................................................................................................13
7. Introduction to the chapter.....................................................................................................13
7.1 Eagle schematic......................................................................................................................13
7.2 Physical dimensions...............................................................................................................15
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OLIMEX© 2012 MOD-RTC User's Manual
CHAPTER 8...............................................................................................................16
REVISION HISTORY..............................................................................................16
8. Introduction to the chapter.....................................................................................................16
8.1 Document revision.................................................................................................................16
8.2 Web page of your device.......................................................................................................16
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OLIMEX© 2012 MOD-RTC User's Manual
CHAPTER 1
OVERVIEW
1. Introduction to the chapter
Thank you for choosing the MOD-RTC extension module from Olimex!
This device is a tiny implementation of NXP's real-time clock/calendar chip PCF8563. The main
purpose of MOD-RTC is adding real-time clock to another Olimex board via the UEXT connector
without the need of a hardware modification.
1.1 Features
• PCF8536 Real time clock
• Lithium 3V battery connector
• UEXT connector
• FR-4, 1.5 mm, soldermask, component print
• Dimensions: 40x19mm (1.57 x 0.75")
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