Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!wuarchive!gem.mps.ohio-state.edu!samsung!uunet!ingr!phil
From: phil@ingr.com (Phil Johnson)
Newsgroups: comp.lsi
Subject: Re: RS-232 5V (???), reference needed
Message-ID: <7388@ingr.com>
Date: 10 Nov 89 15:34:09 GMT
References: <9820@etana.tut.fi>
Reply-To: phil@ingr.UUCP (Phil Johnson)
Organization: Intergraph Corp. Huntsville, Al
Lines: 31

In article <9820@etana.tut.fi> nurmi@tut.fi (Nurmi Jari) writes:
>
>I am looking for a standard serial interface which could be implemented
>using 0-5V CMOS devices. I have heard some second hand information that
>there EXISTS some RS-232-xxx standard that might do.
>

     Maxim Integrated Products
     120 San Gabriel Dr.
     Sunnyvale, California 94086
     USA
     (408) 737-7600

  Manufactures a series of RS-232 transceivers that use +5vdc only.  There
  are about 20-30 different chips in the MAX 2xx series, each with a different
  number of drivers, receivers, external caps, and features.  The RS-232
  voltages (+- 10 vdc) are derived from a charge-pump circuit developed by 
  Maxim.

  I have used these chips on several projects and it really saves time and 
  space when you don't have to worry about an extra power supply just for the
  serial interface. 

  (NOPE: I don't work for, receive compensation from, but use Maxim products)
  (If they would like to send me any sample I'll take them.) 8-{)


-- 
Philip E. Johnson                    UUCP:  usenet!ingr!b3!sys_7a!phil
MY words,                           VOICE:  (205) 772-2497
MY opinion!