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RV5C387A Datasheet(PDF) 44 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) 44 Page - RICOH electronics devices division

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RV5C387A
44
X'tal : 32.768kHz
(R1=30k
Ω TYP.)
(CL=6pF to 8pF)
Topt : 25˚C
Output Pins: open
Frequency
counter
RV5C387A
32.768kHz
OSCIN
OSCOUT
VDD
V
SS
32KOUT
Supply Voltage VDD(V)
01
0
0.2
0.4
0.6
0.8
1
23
4
5
6
(SCL=SDA=“H”,
Output=Open, Topt=25˚C)
Supply Voltage VDD(V)
(SCL=SDA=“H”,
Output=Open, Topt=25˚C)
01
0
0.5
1
1.5
2
23
4
5
6
SCL Clock Frequency (kHz)
0
100
0
5
10
15
20
200
300
400
500
(Output=Open, Topt=25˚C)
VDD=5V
VDD=3V
Operating Temperature Topt(˚C)
–60 –40
0
0.5
1
1.5
2
–20
0
20
40
60
80 100
(Output=Open)
7. Typical Characteristics
•
Test Circuit
7.1 Timekeeping Current vs. Supply Voltage
(with no 32-kHz clock output)
7.2 Timekeeping Current vs. Supply Voltage
(with 32-kHz clock output)
7.3 CPU Access Current vs. SCLK Clock Frequency
7.4 Timekeeping Current vs. Operating Temperature
(with no 32-kHz clock output)


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