4004 and IC history / was Re: Vintage computer photogallery

[Brent Hilpert]

dwight elvey wrote:
> 
> > From: hilpert at cs.ubc.ca
>> ---snip--->
>> Regarding the 4040, I'm speculating as I've never dealt with one or come
>> across the pinout, but I suspect the 4040 essentially integrated the
>> 4004/4008/4009 into one larger package making it look more like a 'standard'
>> microproc in terms of signals/interface (somebody correct me if I'm wrong).

> No, it was just a 4004 with, as I recall, two more instructions.
> It kept the 4004 multiplexed bus and connected to 4001's and 4002's,
> just like the 4004.
>  As I recall, it had 4 times the address space with bank selects. I'd
> need to look at the specs again to be sure.

Thanks for the correction, but why was it in such a larger package?
(4040 was a 28 or 40-pin package wasn't it?).