HEF4538BT,652 Logic Family, Nexperia HEF4538BT,652, Dual Monostable Multivibrator, 16-Pin SOIC

4000 Series Multivibrators \u0026 Timers, Nexperia
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 and will produce an accurate output pulse with a pulse width range of 10 μs to infinity. The duration and accuracy of the output pulse are determined by the external timing components CEXT and REXT.
Simple control interfacePower on resetDual devices with separate reset inputsNegative or positive edge triggeredCMOS low powerKey applicationsTiming delays in control circuits
4000 CMOS Logic Family, Nexperia
CMOS Family devicesWide operating voltage range: 3 to 18V