Written by: Newton C. Braga

This circuit is the equivalent of the CB121, but is triggered with the negative transition of the input pulse. The amount of time the output is activated is 0.7 x R x C [R in ohm and C in farad]. The circuit is shown bellow. The minimum recommended value for C is about 100 pF.

 

Negative-Triggered Half Monostable
Negative-Triggered Half Monostable

 

Datasheet of 4093

Datasheet of 40106