can 89c51 withstands for 12v i/o & supply?

Discussion in 'Embedded Systems and Microcontrollers' started by onlyvinod56, Oct 3, 2009.

  1. onlyvinod56

    Thread Starter Active Member

    Oct 14, 2008
    362
    1
    hello all,
    iam designing a digital speedometer foe my two wheeler.
    the speed iam getting in the form of 12v pulse sequence.

    my doubts are:

    1. can i give the 12v pulses directly to mc without opto couplers?
    2. can i expect the output logic of magnitude 12v?
    3. what is the maximum supply voltage i can give to mc?


    thankyou
     
  2. adventtech

    Member

    Feb 10, 2009
    22
    0
  3. capricsid121984

    New Member

    Dec 27, 2009
    1
    0
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