m41st87w STMicroelectronics, m41st87w Datasheet - Page 27
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m41st87w
Manufacturer Part Number
m41st87w
Description
5.0, 3.3, Or 3.0v, 1280 Bit 160 X8 Secure Serial Rtc And Nvram Supervisor With Tamper Detection
Manufacturer
STMicroelectronics
Datasheet
1.M41ST87W.pdf
(42 pages)
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Figure 22. Crystal Accuracy Across Temperature
Figure 23. Calibration Waveform
NORMAL
POSITIVE
CALIBRATION
NEGATIVE
CALIBRATION
Frequency (ppm)
–100
–120
–140
–160
–20
–40
–60
–80
20
0
–40
–30
–20
–10
0
10
Temperature C
F
K
F = K x (T – T
= –0.036 ppm/ C
20
T
30
O
= 25 C ± 5 C
O
)
2
40
2
± 0.006 ppm/ C
50
60
M41ST87Y, M41ST87W
2
70
80
AI07888
AI00594B
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