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RV5C386A Datasheet(PDF) 14 Page - RICOH electronics devices division

Part # RV5C386A
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

RV5C386A Datasheet(HTML) 14 Page - RICOH electronics devices division

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RV5C386A
14
VDSL
Description
0Selecting the supply voltage monitoring threshold setting of 2.1 volts.
1Selecting the supply voltage monitoring threshold setting of 1.6 volts.
2.2-1 VDSL
Supply Voltage Monitoring Threshold Selection Bit
The VDSL bit is intended to select the supply voltage monitoring threshold settings.
VDET
Description
0
Indicating supply voltage above the supply voltage monitoring threshold settings.
1
Indicating supply voltage below the supply voltage monitoring threshold settings.
2.2-2 VDET
Supply Voltage Monitoring Result Indication Bit
(Default setting)
Once the VDET bit is set to 1, the supply voltage monitoring circuit will be disabled while the VDET bit will hold the
setting of 1. The VDET bit accepts only the writing of 0, which restarts the supply voltage monitoring circuit.
Conversely, setting the VDET bit to 1 causes no event.
D7
D6
D5
D4
D3
D2
D1
D0
VDSL
VDET
SCRATCH1
XSTP
SCRATCH2
CTFG
WAFG
DAFG
VDSL
VDET
SCRATCH1
XSTP
SCRATCH2
CTFG
WAFG
DAFG
00
010000
2.2 Control Register 2 (at Address Fh)
(For write operation)
(For read operation)
Default setting*
1
SCRATCH1
Description
0
1
2.2-3 SCRATCH1
Scratch Bit 1
(Default settings)
The SCRATCH1 bit is intended for scratching and accepts the reading and writing of 0 and 1. The SCRATCH1 bit
will be set to 0 when the XSTP bit is set to 1 in the control register 2.
(Default setting)
*) Default settings: Default value means read/written values when the XSTP bit is set to “1” due to power-on from 0 volts or supply voltage drop.


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