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Serial real-time clock (RTC)
Serial real-time clock (RTC) with 44 bytes NVRAM and reset
5.0 V, 3.3/3.0 V secure real-time clock , NVRAM supervisor with tamper detection and 128 bytes of cl
3.0/3.3 V I²C combination real-time clock, NVRAM supervisor and microprocessor supervisor
Serial real-time clock (RTC) with 56 bytes of NVRAM
Serial real-time clock (RTC) with alarm
Serial SPI bus real-time clock (RTC) with battery switchover
