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Author Question: Which external resistor is necessary to cause a 750 nsec pulse at the output of a 74121 monostable ... (Read 93 times)

storky111

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on: Jul 28, 2018
Which external resistor is necessary to cause a 750 nsec pulse at the output of a 74121 monostable multivibrator when joined with a 500 pF external capacitor?
 
  A) 22 K resistor B) 10 K resistor C) 2.2 K resistor D) 4.7 K resistor

Question 2

What does the instruction SETB bit do?
 
  A) It sets the value of the bit located at address bit.
  B) It clears the value of the bit located at memory bit.
  C) It clears the value of the bit located at address bit.
  D) none of the above


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chreslie

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Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

A


storky111

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Reply 2 on: Jul 28, 2018
Thanks for the timely response, appreciate it

ryansturges

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Reply 3 on: Yesterday
Wow, this really help

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