We have already presented this circuit, obtained from manuals from other manufacturers of the used integrated circuit. This is specifically from Motorola's 1990 Linear Databook.
This circuit can be implemented with standard photodiodes consisting of a two input optical AND gate....
This TTL counter was found in the March 1991 issue of Radio Electronics magazine. The circuit is...
The circuit shown in figure uses a photodiode as a sensor element and its main feature is to have...