Microprocessor supervisor (CB9321E)

This circuit was obtained in a Maxim documentation from the 90's. The circuit applies to microprocessors of the time.

Preamplifier with the LM382 I (CB1551E)
We show only one of the channels of an excellent audio preamplifier with the LM382 integrated...
Mixer FET (CB18226E)
In the original application of this circuit, from a 1985 documentation, we have only two entries....
Noise and Sound Alarm (CB20313E)
This circuit has an oscillator triggered when the microphone picks up sounds, noises or even...