13 Jan
2014
13 Jan
'14
11:20 p.m.
On Jan 13, 2014 3:11 PM, "Ryan Brooks" <ryan at hack.net> wrote:
I believe the 68HC000 can dynamic size down to 8-bits,
so that's a more
available solution for 8 bit designs. I think I did that
once.
Unfortunately the bus sizing feature is static, not dynamic, and is only on
available on the 68HC001, 68EC000, and 68SEC000, but not the far more
common 68HC000. The 68EC000 and 68SEC000 don't provide the /BGACK signal.
On the other hand, the 68SEC000 is apparently still in production, and the
other variants are not.