M41T65 STMICROELECTRONICS [STMicroelectronics], M41T65 Datasheet - Page 25

• Manufacturer Part Number: M41T65
• Description: Serial real-time clocks with alarm
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

M41T62/63/64/65
Figure 21. Crystal accuracy across temperature
Figure 22. Calibration waveform
NORMAL
POSITIVE
CALIBRATION
NEGATIVE
CALIBRATION
Frequency (ppm)
–100
–120
–140
–160
–20
–40
–60
–80
20
0
–40
–30
–20
–10
Doc ID 10397 Rev 14
0
10
Temperature °C
ΔF = K x (T – T
F
K
= –0.036 ppm/°C
20
30
T
O
= 25°C ± 5°C
O
)
2
40
2
± 0.006 ppm/°C
50
60
2
70
Clock operation
80
AI00594b
AI07888
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