I´ve been thinking for hours and just can't seem to find a way to do this. As a final project i need to make a presetteable countdown timer using 74190 ICs, i know how to preset numbers using the DATA inputs and how to connect between the 74190s, the problem is that after presetting a number i...
This is for my school project.
So, I got my 74190 counter shows number like this 9-8-7-6-5-4-3-2-1-0-5-4-3-2-1-0-5-4-3-2-1-0-5-4-3-2-1-0 and so on.
My questions: (1.) What can I do to change the output count down into 5-4-3-2-1-0-5-4-3-2-1-0 and so on
(2.) When it changes 0 into 5 it moves so...