burning proms

It's been suggested that you can use 93446 proms in place of the 74s287 and
74s288, by burning the bin on the bottom half of the prom. Since pins 13 and
14 of a 74s28x are grounded, you would have no need for the CS, and A8 lines
on the 93446.

Since I'm still pretty new at burning stuff I thought I would inquire as to
how to do this.

I'm using a Data I/O to burn this stuff.

My first attempt didn't work.

I read the 74s288 into memory, checksum was good. I then burned the buffer
onto the 93446 and tried it. No joy.

So I'm hoping someone smarter than myself can teach me the mystical ways of
doing this, as the 93446 chips are cheap, and readily available.

Thanks,

Kevin

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Received on Mon Mar 8 09:51:22 2010