RV5C338A Просмотр технического описания (PDF) - RICOH Co.,Ltd.

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RV5C338A

3-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICS WITH VOLTAGE MONITORING FUNCTION

RICOH Co.,Ltd. 

R×5C338A

APPLICATION MANUAL

CONTENTS

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

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

BLOCK DIAGRAM .........................................................................................2

APPLICATIONS .............................................................................................2

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

PIN DESCRIPTIONS ......................................................................................3

ABSOLUTE MAXIMUM RATINGS ...................................................................4

RECOMMENDED OPERATING CONDITIONS .................................................4

DC ELECTRICAL CHARACTERISTICS ...........................................................5

AC ELECTRICAL CHARACTERISTICS ...........................................................6

GENERAL DESCRIPTION..............................................................................7

FUNCTIONAL DESCRIPTIONS ......................................................................9

1. Address Mapping .........................................................................................9

2. Register Settings .......................................................................................10

USAGES......................................................................................................21

1. Data Transfer Formats ..................................................................................21

2. Configuration of Oscillation Circuit and Correction of Time Count Deviations...................27

3. Oscillation Halt Sensing and Supply Voltage Monitoring...........................................32

4. Alarm and Periodic Interrupt ...........................................................................34

5. 32-kHz Clock Output....................................................................................37

6. Typical Applications .....................................................................................38

7. Typical Characteristics..................................................................................41

8. Typical Software-based Operations ...................................................................43

PACKAGE DIMENSIONS ..............................................................................47

TAPING SPECIFICATIONS ...........................................................................48

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