Olimex REAL TIME CLOCK INTERFACE BOARD WITH PCF8563 AND UEXT MOD-RTC MOD-RTC User Manual

Product codes
MOD-RTC
Page of 16
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
Page 3 of 16