![]() ![]() The question was not exactly correct but you are not expected to know that nothing happens until the RESET pin goes HIGH. You asked what voltage, when applied to the RESET pin will I know what the datasheet says but you that is not what you asked. If you're sceptical, take a jumper and plug it directly to GROUND and plug it into the RESET pin and leave it. ![]() The sequence is LOW (less than 2.0V), HIGH=>RESET. It is executed when the reset pin is pulled BELOW the lower threshold voltage of a LOGIC HIGH and THEN RAISED back up to a logic HIGH. Obviously, this means that RESET is NOT executed when the RESET pin is pulled LOW. If, however, the wiper voltage is or LESS THAN 2.05 V (+/- 50mV), when you plug the jumper into the RESET pin, nothing will happen UNTIL you REMOVE it. You will find that as long as the voltage on the RESET pin remains ABOVE 2.1 V (+/- 50 mV), you can plug the jumper into the RESET pin and remove it and nothing happens. Now connect a pot across the 5V bus (or 3.3V, it really isn't going to matter either way) and connect the wiper of the pot to the jumper you connected to the RESET pin. Now, if you want to find out the answer to your question, forget what you readĪnd put a jumper from the RESET(NOT) pin to a breadboard. 0.1Vcc or lower is required to reset, correct? 0.9Vcc or more is required to come out of reset, correct? I am still confused with what threshold means here. ![]()
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