Product Descriptions

These d-c triggered multivibrators feature output pulse-duration control by three methods. The basic pulse time is programmed by selection of 

external resistance and capacitance values (see typical application data). The'122 and 'LS122 have internal timing resistors that allow the circuits 

to be used with only an external capacitor. if so desired. Once triggered, the basic pulse duration may be extended by retriggering the gated 

low-level-active (A) or high-level-active (B) inputs,or be reduced by use of the overriding clear. Figure 1 illustrates pulse control by retriggering 

and early clear.

The 'LS122 and 'LS123 are provided enough Schmitt hysteresis to ensure jitter-free triggering from the B input with transition rates as slow as 

0.1 millivolt pernanosecond.

The Rint in nominall 10 kohm for '122 and 'LS122.

Specifications

Actual product photos

Product Data Book：

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