§ Real-time clock (RTC) − Counts seconds, minutes, hours, date, month, day of the week, and year with leap-year compensation valid up to 2100 − Power control circuitry su.

The DS1680 incorporates many functions necessary for low-power portable products, providing an RTC, NV RAM controller, microprocessor monitor, power- fail warning, 10-bit ADC, and a touch-screen controller in one chip. The RTC provides seconds, minut.

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