RV5C387A_03 datasheet(11/49 Pages) RICOH

Part #	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

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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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