GATE 1998

Question 15

The threshold level for logic 1 in the TTL family is

A	any voltage above 2.5 V
B	any voltage between 0.8 V and 5.0 V
C	any voltage below 5.0 V
D	any voltage below V_cc but above 2.8 V

Question 15 Explanation:

Voltage is to be below V_cc = 5V but above 2.8V

Correct Answer: D

Question 15 Explanation:

Voltage is to be below V_cc = 5V but above 2.8V

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