Microcontroller - Port pins for time-multiplexing types of display

Q.  How are the port pins of microcontroller calculated for time-multiplexing types of display?
- Published on 12 Nov 15

a. 4 + number of digits to be displayed
b. 4 raised to the number of digits to be displayed
c. 4 - number of digits to be displayed
d. 4 x number of digits to be displayed

ANSWER: 4 + number of digits to be displayed

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