I missed the first part of this discussion and I just found this message
by chance. However it is NOT TTL, it's DCL according to my 1971 Signetics
Digital 8000 Series TTl/MSI catalog. Since it's not TTL this catalog
doesn't have a data sheet for it but they do have a list of all of their
ICs including the DCL ones and it's listed there. They say that it's a Quad
2-input NAND gate and that it's listed in the DCL supplement handbook.
Joe
At 05:48 PM 1/22/04 +0000, you wrote:
>Signetics 8881 is
>
>14 - Vcc
> 7 - Gnd
>
>13 - o/p A
>12&11 - i/p's A
>
>10 - o/p B
>8 & 9 - i/p's B
>
>1 - o/p C
>2&3 - i/p's C
>
>4 - o/p D
>5&6 - i/p's D
>
>Device is TTL. Info from old Quarndon Electronics Digital Intergrated
>Circuits Catalogue circa 1970's.
>
>Geoff.
>
>
>----- Original Message -----
>From: "Patrick Finnegan" <pat_at_computer-refuge.org>
>To: "General Discussion: On-Topic and Off-Topic Posts"
><cctalk_at_classiccmp.org>
>Sent: Wednesday, January 21, 2004 12:10 AM
>Subject: Re: brew-your-own-unibus boards?
>
>
>> On Tuesday 20 January 2004 18:06, Tony Duell wrote:
>> > Driver : 8881 (quad 2 input NAND with open collector outputs)
>>
>> Does anyone have a spec sheet on the 8881's? I "might" have a few of
>> them laying around that I could use right about now... If nothing
>> else, a pinout would be helpful.
>>
>> Pat
>> --
>> Purdue University ITAP/RCS
>> Information Technology at Purdue
>> Research Computing and Storage
>> http://www.itap.purdue.edu/rcs/
>
>
Received on Thu Jan 22 2004 - 12:27:31 GMT