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From: nahshon@dan.haifa.ibm.com (Itai Nahshon)
Subject: Re: Source for L293D or SN754410NE's ????
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In-Reply-To: dapalmer@cis.csuohio.edu's message of Tue, 1 Nov 1994 18:33:32 GMT
Date: Wed, 2 Nov 1994 17:12:47 GMT
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	<1994Nov1.183332.10485@news.csuohio.edu>
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In article <1994Nov1.183332.10485@news.csuohio.edu> dapalmer@cis.csuohio.edu (darryl palmer) writes:

>Wally Blackburn (wrb@ccsitn.cb.att.com) wrote:
>: Availability is a continual problem with these parts.  And these designs
>: (i.e. Miniboard) "take advantage of" the separate enables for each 
>: half-bridge, so substituting is next to impossible.

>: These motor drivers are rarely second-sourced.  Pain.....

>That is why I wish people would design boards around another part like the 
>L293E.  It does just about the same thing as the D, but gives the ability to
>have current feedback.  Although the E has a slightly higher cost, it does not
>suffer from the shortages that the D has.

>Darryl

The L293E is also 20 pin DIP (the L293D is 16)

Digi-Key lists the LM18293 in their catalog. I think it's a replacement for
the L293B (I don't have the data book here...).
I believe it does not have the internal diode protection as the L293D.
I think the Miniboards should be designed with place for external
diodes. This will enable using of other members of the L293 family.

A local shop had both the L293E and L293NE. I could not
find what the NE suffix stands for. They are in 16 pin DIP.
Can anyone on the net help?

Itai Nahshon
Haifa, Israel
nahshon@vnet.ibm.com
