BU9873F-GTE2 datasheet(7/40 Pages) ROHM

No de pièce	BU9873F-GTE2

Description	I2C BUS Serial Interface RTC with High-precision Oscillation Adjustment

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Fabricant	ROHM [Rohm]

Site Internet	http://www.rohm.com

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Datasheet

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BU9873

TSZ02201-0919AGZ00010-1-2

13.Sep.2013 REV.001

www.rohm.com

TSZ22111・15・001

Typical Performance Curves

0

0.2

0.4

0.6

0.8

01

234

5

6

Supply Voltage VDD [V]

Figure 7. Timekeeping Current vs. Supply Voltage

(with no 32-kHz clock output, output pins open)

(CGOUT=CDOUT=0pF, Topt=25°C)

0

1

2

3

4

0

1

23

45

6

Supply Voltage VDD [V]

Figure 9. Timekeeping Current vs. Supply Voltage

(with 32-kHz clock output, output pins open)

(CGOUT=CDOUT=0pF, Topt=25°C)

0

0.2

0.4

0.6

0.8

1

1.2

-60

-30

0

30

60

90

120

Operation Te mperature Topt [Celsius]

Figure 8. Timekeeping Current vs. Operating Temperature

(with no 32-kHz clock output, output pins open)

(CGOUT=CDOUT=0pF, VDD=3V)

0

10

20

30

40

0

100

200

300

400

SCL Clock Frequency [kHz]

Figure 10. CPU Access Current vs. SCL Clock Frequency

(with no 32-kHz clock output, SDA=“H”)

(other pins open, CGOUT=CDOUT=0pF, Topt=25°C)

VDD=1.5V

VDD=3.0V

VDD=5.8V

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