RS5C62 Просмотр технического описания (PDF) - RICOH Co.,Ltd.

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RS5C62

REAL-TIME CLOCK

RICOH Co.,Ltd. 

RP/RF/RS5C62

APPLICATION MANUAL

CONTENTS

OUTLINE ......................................................................................................1

FEATURES....................................................................................................1

BLOCK DIAGRAM .........................................................................................1

PIN CONFIGURATION ...................................................................................2

PIN DESCRIPTION ........................................................................................2

ABSOLUTE MAXIMUM RATINGS ...................................................................3

RECOMMENDED OPERATING CONDITION....................................................3

DC ELECTRICAL CHARACTERISTICS ...........................................................4

AC ELECTRICAL CHARACTERISTICS ...........................................................5

TIMING CHART .............................................................................................5

FUNCTIONAL DESCRIPTION.........................................................................6

1. Addressing.................................................................................................6

2. Functions of Registers ...................................................................................7

3. Functions of Counters ..................................................................................15

USAGE........................................................................................................17

1. Reading and Writing Operations ......................................................................17

2. Handling of CE Pin......................................................................................18

3. Configuration of Oscillatory Circuit....................................................................19

4. Adjustment of Oscillation Frequencies ...............................................................20

5. Interrupts .................................................................................................22

6. Timer......................................................................................................23

7. Detection of Stop of Oscillation........................................................................24

8. Typical Power Supply Circuit...........................................................................25

9. Typical Connection between RP/RF/RS5C62 and CPU ...........................................26

10. Typical Characteristics..................................................................................27

11. Typical Software-controlled Processes ...............................................................29

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