🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: sci.electronics
Article #6716

Re: What is this 40pin chip?

#6716
From: John Haddy
Date: Mon, 14 Sep 1992 11:58
39 lines
2147 bytes
In article <1992Sep14.090603.5872@bernina.ethz.ch>, stettbac@isibee3 (Juerg Stettbacher) writes:
|> My name is... (klimasewski@fccvde.enet.dec.com) wrote:
|> : What type of 40pin chip is this?
|> : 
|> : D8749H 3006
|> : 207041-001B
|> : INTEL 80
|> : 
|> : The chip has a window so I assume it can be programed/erased.
|> : Can I copy this chip?
|> :                                                   thanks,
|> :                                                       Ken
|> Hi ...
|> 
|> You have an INTEL chip in front of you (sorry).
|> The IC type is 8749, which is a EPROM version of the 8049.
|> 
Just in case you don't have a data book, it's a single chip microcontroller.

	2k x 8 EPROM
	128 x 8 RAM
	1 to 11 MHz clock
	typ 95mA total supply current

These chips don't have a "security fuse" (I think this concept is substantially
newer than the 8048/8049 series chips - they've been around 10 years or more) so
there ought to be no problem with uploading its contents. Provided, of course,
that you have a suitable programmer :-)

----------------------------------------------------------------------------

      |  _  |_   _   |_|  _   _|  _|              Electronics Department
    |_| (_) | | | |  | | (_| (_| (_| \/           School of MPCE
    ---------------------------------/-           Macquarie University
                                                  Sydney, AUSTRALIA 2109

    Email: johnh@mpce.mq.edu.au, Ph: +61 2 805 8959, Fax: +61 2 805 8983

----------------------------------------------------------------------------
Technical Details
Message-ID: <1992Sep14.115818.3705@mailhost.ocs.mq.edu.au>
Path: arc1-ca.pugleaf.net!sparky!uunet!munnari.oz.au!metro!sunb!macadam!johnh
References: <1992Sep13.155736.22737@ryn.mro4.dec.com> <1992Sep14.090603.5872@bernina.ethz.ch>

Show Full Headers
Complete Article Headers
Newsgroups: sci.electronics
Path: arc1-ca.pugleaf.net!sparky!uunet!munnari.oz.au!metro!sunb!macadam!johnh
From: johnh@macadam.mpce.mq.edu.au (John Haddy)
Subject: Re: What is this 40pin chip?
Message-ID: <1992Sep14.115818.3705@mailhost.ocs.mq.edu.au>
Sender: johnh@macadam (John Haddy)
Nntp-Posting-Host: macadam.mpce.mq.edu.au
Organization: Macquarie University, School of Mathematics, Physics, Computing and Electronics
References: <1992Sep13.155736.22737@ryn.mro4.dec.com> <1992Sep14.090603.5872@bernina.ethz.ch>
Date: Mon, 14 Sep 1992 11:58:18 GMT
Lines: 39