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From: dana@locus.com (Dana H. Myers)
Newsgroups: sci.electronics
Subject: Re: Do you know the uP 8044 ABM ?
Message-ID: <1991Feb11.203133.2814147@locus.com>
Date: 11 Feb 91 20:31:33 GMT
References: <20484.27b2d2ff@oregon.uoregon.edu> <39105@cup.portal.com>
Distribution: usa
Organization: Locus Computing Corporation, Inglewood, CA
Lines: 19

In article <39105@cup.portal.com> mmm@cup.portal.com (Mark Robert Thorson) writes:
>The 8044 is a ROM-based 8-bit microcontroller based on the 8051.
>Unless you have the same ROM code, a replacement part probably won't
>work.  (The only way it would work is if the keyer design disables
>the internal ROM, but if that were the case they probably would
>have used the ROMless version of the 8044, the 8344.)


  I believe the 8044ABM under discussion is NOT a microcontroller; I'm
fairly certain is a keyer chip from Curtis Micro Devices. It has been
around, is some form or another, since well before the 8051 was around.
The 8044ABM is a custom built, CMOS keyer. I think it is MSI, not LSI, too.
Curtis sells the chips directly, look in the ham rags (QST, 73) for their
address.

-- 
 * Dana H. Myers KK6JQ 		| Views expressed here are	*
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