Louis Lester

Need to know about using the PTA2/KBIP2/CLK/nRst/VPP for input

Discussion created by Louis Lester on Jun 7, 2012
Latest reply on Jun 8, 2012 by David Payne

We have literally tens of thousands of the MC9RS08KA2 in stock so Im trying to continue using it for a product upgrade. The problem that im facing is that i need one more input.


My hope was to put two push buttons with in parallel on this pin. pusing one would give 0 volts and the second would give 2.5v and the pin would normall rest at 5 volts if no button was pressed.


I know that the reset can only be used as a Input but is is possible for it to detect different voltage levels?



The IC will be pre programmed so I will not need the reset and or VPP.