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AN4660 Datasheet(PDF) 18 Page - STMicroelectronics |
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AN4660 Datasheet(HTML) 18 Page - STMicroelectronics |
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18 / 27 page  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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