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

 

Datasheets


N° of component