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RV5C387A Datasheet(PDF) 11 Page - RICOH electronics devices division

Part No. RV5C387A
Description  I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC WITH VOLTAGE MONITORING FUNCTION
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Manufacturer  RICOH [RICOH electronics devices division]
Direct Link  http://www.ricoh.com
Logo RICOH - RICOH electronics devices division

RV5C387A Datasheet(HTML) 11 Page - RICOH electronics devices division

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11
RV5C387A
TEST
Description
0
Normal operation mode
1
Test mode
2.1-4 TEST
Test Bit
(Default setting)
The TEST bit is used only for testing in the factory and should normally be set to 0.
2.1-3 CLEN2
32-kHz Clock Output Bit 2
CLEN2
Description
0
Enabling the 32-kHz clock circuit
1
Disabling the 32-kHz clock circuit
(Default setting)
For the RV5C387A, setting the CLEN2 bit or the CLEN1 bit (D3 in the control register 2) to 0, specifies generating
clock pulses with the oscillation frequency of the 32.768-kHz crystal oscillator for output from the 32KOUT pin.
Conversely, setting both the CLEN1 and the CLEN2 bit to 1 specifies disabling (“H”) such output.


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