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M41TC8025AMC5F датащи(PDF) 30 Page - STMicroelectronics

номер детали M41TC8025AMC5F
подробное описание детали  Highly accurate, temperature-compensated serial real-time clock (RTC) with embedded crystal
PDF  41 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M41TC8025AMC5F датащи(HTML) 30 Page - STMicroelectronics

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Operation
M41TC8025
30/41
DocID022873 Rev 4
Figure 19. Battery backup sequence
2.11.2
Application flowcharts
The flowcharts in Figure 20 and Figure 21 give the user an example of the initial power-up
routine and the initialization procedure of the M41TC8025. The user can modify them based
on the real application.
Figure 20. Initial power-up routine
Table 23. Battery backup time AC characteristics
Parameter
Symbol
Condition
Min
Typ
Max
Unit
Power supply detection voltage 1
VDET
-
2.2
V
Power supply detection voltage 2
VLF
-
1.6
V
Power supply drop time
tF
-2
μs/V
Initial power-up time
tR1
-
10
ms/V
Clock maintenance power-up time
tR2
1.6 V to VCC 3.6 V
5
μs/V
1.6 V to VCC  3.6 V
15
μs/V
Obsolete
Product(s)
- Obsolete
Product(s)



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