help me pls in AT89S52 programming p

Discussion in 'Embedded Systems and Microcontrollers' started by mohlandmine, Aug 16, 2009.

  1. mohlandmine

    Thread Starter New Member

    May 2, 2009
    2
    0
    hi all
    i use AT89S52 which is 8051 micro
    i interface the micro woth M74HC151B1 to increase the number of input pins
    now how i can demultiplexing the 8's inputs internal the micro itself
    and how i generate the three addresses to select the first input to go to the micro then the second and so,on 0101010101..../001100110011..../000111000111.... continuaslly

    pls see the M74HC151B1 datasheet to now what i mean

    thanks

    who help aothers he help himself
     
  2. mohlandmine

    Thread Starter New Member

    May 2, 2009
    2
    0
    noooooo helpers here?
     
  3. rushi53

    Member

    May 8, 2009
    21
    0


    Connect Pin 9, Pin 10, Pin 11 of Multiplexer to Any port of Microcontroller
    These are A B C pins of Multiplexer

    Please let me know if you need any help
    __________________
    Thanks,
    Rushikesh
    www.projectsof8051.com
     
Loading...