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Digital Electronics - Flip-Flops

Exercise : Flip-Flops - General Questions
6.
How many flip-flops are required to produce a divide-by-128 device?
1
4
6
7
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
Which is not an Altera primitive port identifier?
clk
ena
clr
prn
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
The timing network that sets the output frequency of a 555 astable circuit contains ________.
three external resistors are used
two external resistors and an external capacitor are used
an external resistor and two external capacitors are used
no external resistor or capacitor is required
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
What is the difference between the enable input of the 7475 and the clock input of the 7474?
The 7475 is edge-triggered.
The 7474 is edge-triggered.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
The phenomenon of interpreting unwanted signals on J and K while Cp (clock pulse) is HIGH is called ________.
parity error checking
ones catching
digital discrimination
digital filtering
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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