U840B control equivalent, digital / wipe-wash control.
D Interval-switch A and B to GND D Wipe/ wash push button to VBatt D Output driver protected against short circuit digital debounced: t6 = 10 ms D All time periods digita.
The interval pause t3 can be set in a range from 0.8 s to 22 s by an external 30 kW potentiometer. All other time perio.
The circuits U840B (DIP8) and U840B-FP (SO8) are designed as interval wipe/ wash timer for automotive applications. The interval pause t3 can be set in a range from 0.8 s to 22 s by an external 30 kW potentiometer. All other time periods are determin.
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