Flip-Flops and Timers - Technical MCQs

Q1:

The 555 timer can be used in which of the following configurations?

A astable, monostable

B monostable, bistable

C astable, toggled

D bistable, tristable

ANS:A - astable, monostable

Bistable multivibrator depends on transistors switching alternately depending on output whereas monostable & astable requires time delay input for switching. So the above answer is justified.