datasheets for 82S21 - Signetics 32x2 SRAM?

[Brad Parker]

Tony Duell wrote:
>
>Here's the pinout. I have no idea what some of the signals are for (does 
>it, for example, have separate write-enable inputs for the 2 bits?), but 
>it may be better than nothing.

Thanks - I know the pinout.  I think this ram would allow some sort of
simultaneous read/write (not dual port, just overlapped) but I don't
know how it works.

>The NatSemi DM86S21 might be an equivalent, I can find no 
>cross-references to it in other memory databooks, though.

Huh.  I could not find anything on the 86S21, but I don't have national
books.  Anyone else?

-brad