The difference must be the " N " on the front , but the heading on the page
says
" Signetics 8400/8800 Series TTL " . Obviously the Texas reference to
the N8881 is for a later TTL device.
Geoff.
----- Original Message -----
From: "Joe R." <rigdonj_at_cfl.rr.com>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk_at_classiccmp.org>
Sent: Thursday, January 22, 2004 6:27 PM
Subject: Re: brew-your-own-unibus boards?
> 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 - 16:15:43 GMT