17 Dec
2009
17 Dec
'09
8:09 p.m.
On Thu, Dec 17, 2009 at 10:54 PM, Geoffrey Reed <geoffr at zipcon.net> wrote:
Was the 2114 the chips that were 4116's that only
half the memory cells were
functional in? ?ISTR that one of the lower capacity ram chips were failed
higher capacity chips that only half of the chip worked.
There definitely were chips of that nature sold, but I don't think
they were ever badged "2114". Perhaps 4108s? ISTR you had to specify
high or low parts.
The ones we have been discussion are definitely mid-1970s-technology
1Kx4 SRAMs in the 150ns-250ns range. 18 pin DIPs.
-ethan