The SiT95901 is an ultra-low power real-time clock (RTC) and calendar device with dual I2C bus support that allows two master devices (i.e., CPU and BMC chip in a server platform) access to the device. The SiT95901 RTC is optimized for low power consumption and has a built-in voltage-level detection circuit that detects power status and voltage level. If the RTC loses its primary power source, the device will automatically switch to the backup battery power supply (VBAT). When operating in battery (VBAT) data retention mode, the device maintains time, date, and alarm operation with very low current consumption.
Provides year, month, day, weekday, hours, minutes and seconds based on a 32.768 kHz MEMS oscillator or quartz crystal
Automatic power-level detect and switch circuitry, plus oscillator fail detection function
Supports battery voltage level measurement
The SiT95901 is an ultra-low power real-time clock (RTC) and calendar device with dual I2C bus support that allows two master devices (i.e., CPU and BMC chip in a server platform) access to the device. The SiT95901 RTC is optimized for low power consumption and has a built-in voltage-level detection circuit that detects power status and voltage level. If the RTC loses its primary power source, the device will automatically switch to the backup battery power supply (VBAT). When operating in battery (VBAT) data retention mode, the device maintains time, date, and alarm operation with very low current consumption.
- Provides year, month, day, weekday, hours, minutes and seconds based on a 32.768 kHz MEMS oscillator or quartz crystal
- Automatic power-level detect and switch circuitry, plus oscillator fail detection function
- Supports battery voltage level measurement
