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RTC chips use ______ to compute time, date when the power is off.

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in Microcontroller by (14.6k points)
RTC chips use ______ to compute time, date when the power is off.

(a) ac supply

(b) generators

(c) rectifiers

(d) battery

This question was addressed to me in a national level competition.

My question is based upon Interfacing with RTC topic in chapter AVR Microcontroller of Microcontroller

1 Answer

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by (24.2k points)
Correct option is (d) battery

For explanation I would say: RTC chips require batteries in order to calculate the time and date when the power of the device is off.

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