HEF4538B Dual precision monostable multivibrator Rev.
11 — 19 October 2018 Product data sheet 1.
General description The HEF4538B is a dual retriggerable-resettable monostable multivibrator.
Each multivibrator has an active LOW trigger/retrigger input (nA), an active HIGH trigger/retrigger input (nB), an overriding active LOW direct reset input (nCD), an output (nQ) and its complement (nQ), and two pins (nREXT/CEXT, and nCEXT, always connected to ground) for connecting the external timing components CEXT and REXT.
Typical pulse width variation over the specified temperature range is ±0.
2 %.
The multivibrator may be triggered by either the positive or the negative edges of the input pulse a...

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