M41ST84WMH ST Microelectronics, M41ST84WMH Datasheet - Page 24

• Manufacturer Part Number: M41ST84WMH
• Description: 5.0 or 3.0V / 512 bit 64 x 8 SERIAL RTC with SUPERVISORY FUNCTIONS
• Manufacturer: ST Microelectronics

M41ST84Y, M41ST84W
Figure 20. Crystal Accuracy Across Temperature
Figure 21. Clock Calibration
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Frequency (ppm)
–100
–120
–140
–160
–20
–40
–60
–80
20
NORMAL
POSITIVE
CALIBRATION
NEGATIVE
CALIBRATION
0
–40
–30
–20
–10
0
10
Temperature C
F
F = -0.038
20
T
30
0
ppm
= 25 C
C
2
(T - T
40
0
)
2
50
10%
60
70
80
AI00999
AI00594B