

MCQOPTIONS
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1. |
The 7447A is a BCD-to-7-segment decoder with ripple blanking input and output functions. The purpose of these lines is to ________. |
A. | turn off the display for any nonsignificant digit |
B. | turn off the display for any zero |
C. | turn off the display for leading or trailing zeros |
D. | test the display to assure all segments are operational |
Answer» B. turn off the display for any zero | |