Wanted : Pinout of 82S83

[Tony Duell]

> 
> Tony wrote:
> > Does anyone have a pinout for the Signetics 82S83 BCD full-adder chip (16
> > pin DIL package)? A google search didn't turn up anything useful that I
> > could see.
> 
> Happened to have the relevant data book less than three feet from where
> I'm sitting.

Thanks

> 
>      ------ ------
>   B2 | 1   u  16 | Vcc
>   B4 | 2      15 | A4
>   B8 | 3      14 | A2
>   A8 | 4      13 | A1
>  Cin | 5      12 | B1
> Cout | 6      11 | S1
>   S4 | 7      10 | S2
>  GND | 8       9 | S8
>      -------------


Assuming you've numbered the pins with their bit-values rather than the 
bit-number (which is what is done in the 74F583 data sheet), then the 
pinout _is_ the same as the 74F583, altough the  latter is much faster.

I am not suprised. I had already found what looked like a carry chain 
linking pin 6 on one chip to pin 5 on the next...

[...]

> The 82S82 is similar but can also subtract, has an A=B output,
> and has G and P outputs for lookahead carry.  It's in a 24-pin
> package.

Sounds similar to the 74F582. Maybe even the same pinout

Thanks again for the data

-tony