🚀 go-pugleaf

  Dan Freitas already posted about this, but if you wanted some more
  details, here is an original article by the Motorola rep who posted about
  those chips.  It has the phone numbers and the other chip.

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Another source for +5 volt only supply voltage RS-232 transmitters
and receivers is 
                    Motorola Semiconductor Products

the original inventor of the MC1488 and MC1489, the "standard"
RS-232 devices used for the last several decades.

The 5 volt only devices from Motorola are the MC145406L or P (ceramic
or plastic package) and the MC145407P. The MC145406 requires + and -
5 volts to + and - 12 volts power supply to meet the full RS-232
spec (withstand input voltages up to + and - 25 volts, etc.).  There
are 3 drivers and 3 receivers per package.

Recently introduced is the + 5 volt only MC145407P which only requires
+5 volt input supply and generates internally + and - 10 volts to
permit full compliance with the RS-232 spec.  There is enough supply
power generated to power an additional MC145406 device if so desired.
The MC145407 has three drivers and three receivers also.

For additional information, data sheets, etc., contact your local
Motorola Semiconductor sales office, your local Motorola distributor,
or call 1+800-521-6274.

No disclaimer.  Obviously Motorola pays me to say all of the above.
~Newsgroups: comp.lsi


-- 
<< Usual Disclaimer >>
Phil Weinberg @ Motorola Semiconductor, Sunnyvale, CA 94086-5395 
UUCP:  {hplabs, mot,} !motsj1!phil
Telephone:  +1 408-991-7385

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--
%% Dru Nelson %% Miami, FL %% Internet:  dnelson@mthvax.cs.miami.edu  %%