DS1337 데이터 시트보기 (PDF) - Maxim Integrated

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DS1337

I2C Serial Real-Time Clock

Maxim Integrated 

DS1337 I2C Serial Real-Time Clock

Note 16:

The parameter tOSF is the period of time that the oscillator must be stopped for the OSF bit to be set over the

voltage range of VCC(MIN) ≤ VCC ≤ VCC(MAX)..

TYPICAL OPERATING CHARACTERISTICS

(VCC = 3.3V, TA = +25°C, unless otherwise noted.)

1000

ICCT OSC

ICC vs. VCC ICCS

900

800

INTCN = 0

(Squarew ave on)

700

600

INTCN = 1

(Squarew ave off)

500

400

300

1.3 1.8 2.3 2.8 V3C.C3 (V) 3.8 4.3 4.8 5.3

ICCS vs. Temperature

VCC = 3.0V

700

650

INTCN = 0

(Squarew ave on)

600

550

500

INTCN = 1

450

(Squarew ave off)

400

350

-40.0 -20.0 0.0 V2C0C.0(V) 40.0 60.0 80.0

ICCA vs. VCC

125

100

75

50

25

0

1.8 2.3 2.8 3.3 3.8 4.3 4.8 5.3

VCC (V)

OSCILLATOR FREQUENCY vs. VCC

32768.35

32768.3

32768.25

32768.2

32768.15

32768.1

32768.05

32768

1.3 1.8 2.3 2.8VCC 3(V.3) 3.8 4.3 4.8

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