The differences of MAX232...

Discussion in 'The Projects Forum' started by kevy, Nov 27, 2006.

  1. kevy

    Thread Starter New Member

    Nov 22, 2006
    6
    0
    What is the differences of MAX232, MAX232N, MAX232CPE and MAX232CP?
    As I read the data sheet for MAX232N, it is using plus and minus 8.5V dc for pin 2 (Vs+) and pin 6 (Vs-).
    And some MAX232 use 3.3V or 5V...
    Can I use 5V and ground for MAX232N.
    If yes, how to use it?
     
  2. pebe

    AAC Fanatic!

    Oct 11, 2004
    628
    3
    The MAX232 is intended to be run from a 5v supply. The +/-8.5v pins you mention are generated from within the chip so that TTL levels can be converted to RS232 levels, which go above and below 0v. Page 7 of this link shows its typical application.

    http://lwww.ece.uidaho.edu/ee/classes/ECE341F06/datasheets/MAX232.pdf

    It has two TTL to RS232 converters and two RS232 to TTL converters.

    As far as I know, the ‘N’ or other suffix denotes the type of package.
     
  3. ScarEye

    Member

    Nov 24, 2006
    24
    0
    kevy,

    If you don't mind me asking, what application are you trying to use this chip for ?
     
  4. sci-3d

    Well-Known Member

    Aug 22, 2006
    51
    0
    This chips are used in MCUs serial commutation. For example interfacing Computer with 8051.
     
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