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Digital Electronics - Engineering

Q1:

Inverter 74 LS04 has following specifications I0H max = - 0.4 mA, I0L max = 8 mA, IIH max = 20 μA, IIL max = 0.1 mA
The fan out of this inverter is

A 10

B 20

C 60

D 100

ANS:B - 20

Fan out in low state = = 80 Fan out in high state = Hence fan out is smaller of two values ie., 20.