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M41TC8025 数据表(PDF) 3 Page - STMicroelectronics

部件名 M41TC8025
功能描述  Highly accurate, temperature-compensated serial real-time clock (RTC) with embedded crystal
PDF  41 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

M41TC8025 数据表(HTML) 3 Page - STMicroelectronics

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DocID022873 Rev 4
3/41
M41TC8025
Contents
2.7.1
Related registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.7.2
Starting the time update interrupt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.7.3
Stopping the time update interrupt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2.7.4
Example operation of the time update interrupt . . . . . . . . . . . . . . . . . . . 24
2.8
Alarm interrupt function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2.8.1
Related registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2.8.2
Alarm interrupt example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
2.8.3
Example operation of the alarm interrupt . . . . . . . . . . . . . . . . . . . . . . . . 27
2.9
Relationship between the three interrupts . . . . . . . . . . . . . . . . . . . . . . . . 28
2.10
Low-voltage detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
2.11
Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2.11.1
Battery backup and recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2.11.2
Application flowcharts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4
DC and AC parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
5
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6
Part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
7
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Obsolete
Product(s)
- Obsolete
Product(s)



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