On Mar 13, 2014 6:40 AM, "allison"
<ajp166 at verizon.net> wrote:
On 03/13/2014 02:03 AM, Eric Smith wrote:
> On Wed, Mar 12, 2014 at 11:40 PM, Chuck Guzis <cclist at sydex.com> wrote:
>
>> On 03/12/2014 09:21 PM, Eric Smith wrote:
>>
>> It occurs to me that the TMS1099 may have been the earliest
production
IC
>>> to be offered in a 64-pin DIP
package. The TMS9900 didn't go into
>>> production until 1976.
>>>
>> Some of the Rockwell PPS-4/1 parts were bristling with pins, but I
don't
recall how many.
They used 42 pin quad-in-line packages. I don't think Rockwell had any
parts with more pins than that until very late in the 1970s.
Yes Rockwell did. The calc chips used in some of the early calcs were
rockwell
and were 42/52 pin dual QIL. I remember the 52 pin parts they were fun to
remove and replace.
Ti was not first unless your talking about the first complete
microcomputer on
a single chip (excluding display drivers).
I have no idea what a "dual
QIL" is, but Rockwell having 52-pin QUIPs does
not in any way refute the idea that the TMS1099 in 1975 might have been the
first production IC in a 64-pin DIP.
QIL was a .050 spaced DIL with stagger bent leads so that every other
pin was .100 apart.
Allison