An RC circuit used in a nonretriggerable 74121 one-shot has an REXT of – McqOptions

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1.	An RC circuit used in a nonretriggerable 74121 one-shot has an REXT of 49 k and a CEXT of 0.2 F. The pulse width (tW) is approximately ________.
A.	6.9 s
B.	6.9 ms
C.	69 ms
D.	690 ms
Answer» C. 69 ms

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