STMicroelectronics
Serial SPI bus RTC with battery switchover
STMicroelectronics
SERIAL ACCESS RTC WITH ALARMS
STMicroelectronics
Serial RTC with battery switchover
STMicroelectronics
Serial real-time clock
STMicroelectronics
Serial real-time clock (RTC) with 56 bytes of NVRAM
STMicroelectronics
Serial real-time clocks (RTCs) with alarm
STMicroelectronics
Serial real-time clock with 44 bytes NVRAM and reset