6 Aug
2019
6 Aug
'19
7:43 a.m.
On Tue, Aug 6, 2019 at 1:19 AM Eric Smith <spacewar at 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.