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AN4660 bảng dữ liệu(PDF) 18 Page - STMicroelectronics

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Giải thích chi tiết về linh kiện  Designers of STM32 microcontroller applications must have the possibility
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AN4660 bảng dữ liệu(HTML) 18 Page - STMicroelectronics

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Peripheral migration
AN4660
18/27
DocID027558 Rev 2
2.10
RTC
Table 15 shows the RTC comparison between STM32F42xxx/F43xxx and
STM32F74xxx/F75xxx.
Table 15. RTC comparison between STM32F42xxx/F43xxx and STM32F74xxx/F75xxx
RTC
STM32F42xxx/F43xxx
STM32F74xxx/F75xxx
Calendar in BCD
Yes
Calendar sub seconds access
Yes
Resolution down to RTCCLK
Calendar synchronization on
the fly
Yes
Alarm on calendar
2 w/ subseconds
Calendar calibration
Calibration window: 8s/16s/32s
Calibration step: 3.81ppm/1.91ppm/0.95 ppm
Range [-480ppm +480ppm]
Synchronization on mains
Yes
Periodic wakeup
Yes
Timestamp
Yes
Sec, Min, Hour, Date, Sub seconds
Timestamp on VBAT switch
No
Yes
Tamper
2 pins/ 2 events
3 pins/ 3 events
Edge or level detection with configurable filtering
External interrupt and trigger
with filtering
No
Yes
32-bit backup registers
20
32
RTC in VBAT
Yes



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