M48T212YSH 데이터 시트보기 (PDF) - STMicroelectronics

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M48T212YSH

5.0V or 3.3V TIMEKEEPER® Supervisor

STMicroelectronics 

Figure 11. Crystal Accuracy Across Temperature

M48T212Y, M48T212V

Frequency (ppm)

20

0

–20

–40

–60

–80

–100

–120

–140

–160

–40 –30 –20 –10 0

∆F

F

= -0.038

ppm

C2

(T

-

T0)2

±

10%

T0 = 25 °C

10 20 30 40 50 60 70 80

Temperature °C

AI00999

Figure 12. Calibration Waveform

NORMAL

POSITIVE

CALIBRATION

NEGATIVE

CALIBRATION

AI00594B

21/32

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