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Electronics and Communication Engineering - Digital Electronics

Exercise : Digital Electronics - Section 11
21.
Four MSI TTL 4-bit ripple counters are cascaded to form a 16-bit binary counter. Its propagation delay is about __________ nanoseconds.
70
140
210
280
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
The Boolean function A + BC is reduced form of
AB + BC
AB + ABC
(A + B) (A + C)
(A + C)B
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
The accuracy of A/D conversion is generally
± LSB
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
To convert JK flip flop to D flip flop
connect D to both J and K
connect D to J directly and D to K through inverter
connect D to K directly and D to J through inverter
connect D to K and leave J open
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
Read cycle is always followed by (during instructions execution)
read cycle
write cycle
delete signal
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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