Theoretical Summary, Continued
And here is a close look at the two pins that might require a pull down. I marked all the pins that carry 'ground' (VSS) black. These are places where you could get the ground for the pull-down resistors.
And here is a close look at the two pins that might require a pull down. I marked all the pins that carry 'ground' (VSS) black. These are places where you could get the ground for the pull-down resistors.