Newsgroups: comp.robotics
Path: brunix!news.Brown.EDU!noc.near.net!howland.reston.ans.net!agate!deep.rsoft.bc.ca!mindlink!a50
From: Cliff_Lum@mindlink.bc.ca (Cliff Lum)
Subject: Re: SGS Thompson H Bridges... Where?
Organization: MIND LINK! - British Columbia, Canada
Date: Wed, 9 Jun 1993 07:42:02 GMT
Message-ID: <25233@mindlink.bc.ca>
Sender: news@deep.rsoft.bc.ca (Usenet News at rsoft.bc.ca)
Lines: 32

> Thomas Benedict writes:
>
> Msg-ID: <BENEDICT.93Jun8144112@chaos.utexas.edu>
> Posted: 8 Jun 93 19:41:12 GMT
>
> Org.  : Center for Nonlinear Dynamics, University of Texas at Austin
>
> Does anyone know where I could get just two SGS Thompson L293D chips
> for a Miniboard?  Active Electronics has a $25 minimum order, and they
> only have one chip left in stock.  They're also not re-ordering until
> December.  I'd really like to get this thing running this summer.  Are
> there any equivalents I can safely use?  I've got everything except
> for those two obnoxious chips.
>
> Tom Benedict
> benedict@chaos.ph.utexas.edu
> Center for Nonlinear Dynamics
> University of Texas at Austin

I am having the same problem myself, SGS L293 are hard to get without a
minimum order. But I have located two equivalents or better from TI.
the TI L293D NE is a pin for pin compatible with the SGS L293D.
the TI SN 754410 is an improved version that can handle 1 amp instead of 600
ma for the L293's.

While i'm mentioning other chips has anyone tried a MC68HC811A8 instead of
the MC68HC811E2. The 68HC811A8 has 8K + 512 of EEprom while the 11E2 chip has
only 2K of eeprom. So more memory for better programs using the 68HC811A8
(note: this is not the 68HC11A8, this is from the M68hc11 ref manual  REV 3)


hope that helps
