74HCT221 multivibrator equivalent, dual non-retriggerable monostable multivibrator.
* Input levels:
* For 74HCT221: TTL level
* Pulse width variance is typically less than 5%
* Direct reset terminates output pulse
* Schmitt-trigger a.
pulse stability will only be limited by the accuracy of the external timing components. Inputs include clamp diodes. Thi.
The 74HCT221 is a dual non-retriggerable monostable multivibrator. Each multivibrator features edge-triggered inputs (nA and nB), either of which can be used as an enable input. Pulse triggering occurs at a particular voltage level and is not direct.
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