The Renesas low power RTC is an embedded temperature sensor and crystal. Device functions include oscillator compensation, clock/calendar, power fail and low battery monitors, brownout indicator, one-time, periodic or polled alarms, intelligent battery backup switching, battery reseal function and 128 bytes of battery-backed user SRAM. The device is offered in a 20 Ld DFN module that contains the RTC and an embedded 32.768kHz quartz crystal. The calibrated oscillator provides less than ±5ppm drift across the 0°C to +85°C temperature range.

On-chip oscillator temperature compensation
10-bit digital temperature sensor output
15 selectable frequency outputs
Interrupt for alarm or 15 selectable frequency outputs
Automatic backup to battery or super capacitor
RoHS compliant