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SN74LS221

Part Number	SN74LS221
Manufacturer	ON Semiconductor
Description	Dual Monostable Multivibrators
Published	May 20, 2005
Detailed Description	SN74LS221 Dual Monostable Multivibrators with Schmitt-Trigger Inputs Each multivibrator of the LS221 features a negative...
Datasheet	SN74LS221 PDF File

Overview

...-transitiontriggered input and a positive-transition-triggered input either of which can be used as an inhibit input.
Pulse triggering occurs at a voltage level and is not related to the transition time of the input pulse.
Schmitt-trigger input circuitry for B input allows jitter-free triggering for inputs as slow as 1 volt / second, providing the circuit with excellent noise immunity.
A high immunity to VCC noise is also provided by internal latching circuitry.
Once triggered, the outputs are independent of further transitions of the inputs and are a function of the timing components.
The output pulses can be terminated by the overriding clear.
Input pulse width may be of any duration relat...

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