S35390A datasheet(44/51 Pages) SII

44 / 51 page

FOR AUTOMOTIVE 105°C OPERATION 2-WIRE REAL-TIME CLOCK

S-35390A H Series

Rev.2.2_00

Seiko Instruments Inc.

7. Oscillation frequency vs. VDD characteristics 8. Oscillation frequency

vs. Temperature characteristics

Ta = +25°C, Cg = 7.5 pF

Cg = 7.5 pF

–10

–20

–30

–40

–50

Δf/f

[ppm]

VDD [V]

−50

−100

−150

−200

−250

Ta [

°C]

−25

105

−40

Δf/f

[ppm]

VDD = 5.0 V

VDD = 3.0 V

9. Oscillation start time vs. Cg characteristics

10. Output current characteristics 1

(VOUT vs. IOL1)

Ta =

+25°C

INT1 pin, INT2 pin, Ta =

+25°C

500

450

400

350

300

250

200

150

100

tSTA

[ms]

Cg [pF]

VDD = 5.0 V

VDD = 3.0 V

IOL1

[mA]

VOUT [V]

VDD = 5.0 V

VDD = 3.0 V

11. Output current characteristics 2

(VOUT vs. IOL2)

12. BLD detection, release voltage, VDDT (min.)

vs. Temperature characteristics

SDA pin, Ta = +25°C

CL = 6 pF

IOL2

[mA]

0.5

1.5

VOUT [V]

2.5

VDD = 5.0 V

VDD = 3.0 V

1.4

Ta [

°C]

−25

105

−40

1.2

1.0

0.8

0.6

0.4

0.2

VDD

[V]

Detection voltage

Release voltage

VDDT (min)

S35390A Datasheet(PDF) 44 Page - Seiko Instruments Inc

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