556 question...

Discussion in 'General Electronics Chat' started by mbohuntr, Jul 5, 2013.

  1. mbohuntr

    Thread Starter Active Member

    Apr 6, 2009
    413
    32
    If I'm using 1/2 of a 556 as a delay for my garage door alarm circuit, and I'm planning on using the unused pins for the other half as a timed reset for the entire circuit at a later date, can I let these float?(Pins 8-13) So I can build the vero board?

    I haven't designed the reset part yet...
     
  2. Wendy

    Moderator

    Mar 24, 2008
    20,766
    2,536
    Same rules as any logic, ground the inputs. That would be pins 8, 10, and 12 on a 556, or pins 2, 4, and 6, depending on which side you use.
     
    absf likes this.
  3. mbohuntr

    Thread Starter Active Member

    Apr 6, 2009
    413
    32
    Thanks Bill, and Hello again!
     
  4. Wendy

    Moderator

    Mar 24, 2008
    20,766
    2,536
    Hello yerself! You know I can't resist a 555 question.

    Trolls had been keeping us busy, but all's quite at the moment.
     
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