Digital Circuits & Design, 1st Education by Pearson

Clocks and Timing Circuits | 15.5

15.2.2 | Monostable Multivibrator

A monostable multivibrator or one logic short circuit using gates is shown in Figure 15.8.

To consider its operation, let trigger input is at HIGH (logic 1). As and when both input

of the NAND gate are HIGH (logic 1), it results its output as LOW that is considered

logic 0. Therefore, the capacitor remains uncharged and the voltage across capacitor, V

C

remains zero. Under steady-state condition, the voltage V

R

across the resistance R is zero.

The inverter changes LOW (logic 0) to HIGH (logic 1) and makes the output V

O

in HIGH

(logic1). HIGH (Logic 1) state is the stable state ...