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Article #20582Re: Re:Mystery chips on S-100 processor board
From: John - DeBert
Date: Mon, 30 Jan 1989 06:40
Date: Mon, 30 Jan 1989 06:40
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In article (617@csd4.milw.wisc.edu), paravia@csd4.milw.wisc.edu (Mark David Kakatsch) writes, >Hello. At a recent SwapFest here in the milwaukee area, I picked up a (more or >less) full s-100 system for approx. $65. The CPU board is an "Ithaca Audio" >Z-80 board, and it won't be too hard to fix up...However, my problem is a few >chips on the board. From the schematics, you can tell that they are buffer >chips such as the 74LS245, or '374, albeit they have only 16 pins. Their part >numbers are 8T97 and 8T98. Does anybody know if they are still produced, and if >so, where they are available? Thanks much... > >Mark The 8T97 and 8T98 are buffer devices for bus i/o. They are still being made and can be had from various electronics parts suppliers such as Jameco or JDR Microdevices. Offhand, I don't recall which does what exactly. I believe that they are tristate devices. JJD A-N-Onymouse@cup.portal.com
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!unmvax!ncar!ames!amdcad!sun!pitstop!sundc!seismo!uunet!portal!cup.portal.com!A-N-Onymouse From: A-N-Onymouse@cup.portal.com (John - DeBert) Newsgroups: sci.electronics Subject: Re: Re:Mystery chips on S-100 processor board Message-ID: <14098@cup.portal.com> Date: 30 Jan 89 06:40:21 GMT References: <5770015@hpscdc.HP.COM> <2312@iscuva.ISCS.COM> <617@csd4.milw.wisc.edu> Organization: The Portal System (TM) Lines: 20