On Tue, Aug 6, 2019 at 1:19 AM Eric Smith <space...@gmail.com> wrote:
> With the [MC6809]E version you have to supply a quadrature clock, but all > that's required to generate that is a single-phase 4x clock (which you need > with either the E or non-E part) and a single 74HCT74. > In case anyone needs to see how this is done, I've attached a schematic. It is shown with an 8 MHz half-can oscillator, which will result in 2 MHz outputs suitable for an MC68B09E, which is rated for 2 MHz operation.