Ling wrote:
>>Also, I've been using Epson SG-531PH oscillators (not cheap,
>from Digikey) on my own boards. Been running the SX at 60 Mhz
>this way.
>
>It would be good if it can fit into HC49U footprint.  Overclock an
>already speedy SX, brilliant ! What's limit you've pushed?  Put a fan
>in and see how fast it can go.  I can send a 486 cpu type of fan from
>here (Singapore) if you want to try?
>

Heat is not a problem with these chips as far as I can tell.
And as I recall, the FAE told me they can probably go to 75 Mhz
or so.

And, yes, the oscillator will fit inside an HC49U footprint. Just
mount it at a 90deg orientation.

- Dan