Dynamic
Dynamic
Dynamic
STMicroelectronics
5.0 OR 3.0V, 512 bit (64 x 8) Serial RTC with supervisory functions(???????????.0V??.0V??12??64 x 8)???RTC)
STMicroelectronics
3.0/3.3 V I2C serial RTC with 44 bytes of NVRAM and supervisory functions
STMicroelectronics
512 bit (64 x 8) Serial RTC with Supervisory Functions(5.0??.0V, 512 ??64 x 8)??????????????????)