Newbie Question #2

Discussion in 'Embedded Systems and Microcontrollers' started by ttiwkram, May 15, 2012.

  1. ttiwkram

    Thread Starter New Member

    May 15, 2012
    4
    0
    Hi -

    On a PIC16F84 chip, I tied the MCLR pin directly to Vdd (I forgot to use a pull-up resistor). Right now I'm getting no response from the chip, but I think it's a separate (oscillator) issue.

    The data sheet says the pin can handle up to +14 volts. Should I be concerned that I may have fried the chip by hitting it with 4.5V without a resistor?

    Thanks.
     
  2. nigelwright7557

    Senior Member

    May 10, 2008
    487
    71
    I have tied my /mclr to Vdd many times without any problems.
    /MCLR only goes to 12 volts to program the chip.
     
    ttiwkram likes this.
  3. ttiwkram

    Thread Starter New Member

    May 15, 2012
    4
    0
    Good to know! Thanks.
     
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