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Re: Apple floppy adaptor. I'm stuck!
bieling@terra.es wrote:
> On Feb 17, 2:03 pm, Tristan Mumford <xtristan.xmumf...@xgmail.xcom>
> wrote:
>> Oh. I'm surprised. The datasheet I grabbed for it from alldatasheet said
>> it was a schottky. Maybe I was looking at the wrong sheet. Still, ancient
>> thing.
>> Tristan.
>
> I'd keep an eye on the output drive figure because it seems to be
> pretty low for standard TTLs, as you can see here:
I wonder if thats why the serial communication was so lousy on my C64 serial
interface. I was feeding the signal through twice for a noninverting
buffer.
>
> <http://www.geocities.com/dsaproject/electronics/data_book/
> ic_technology.html>
>
> Don't know what's connected to it's outputs... ?
> I'm missing my TTL CookBook now !
Can't help there. I only have my CMOS Cookbook for reference :)
Its outputs have /WDATA (to pc floppy) RDDATA (to a2) WPROT (to a2) on them.
Anyway, once I finish turning my nice neat little board into a big mess to
connect a board with the 18f452 on it I can continue on. And after I put in
a better hex inverter if I can find one in my junk that is.
Tristan.
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