Connect with us

Simple TTL question

Discussion in 'Electronic Basics' started by Tim Klinger, Feb 5, 2004.

Scroll to continue with content
  1. Tim Klinger

    Tim Klinger Guest

    I am trying to hook up a 7400N quad NAND chip to use as a debouncer
    for a switch and am running into a problem I don't understand. When I
    provide power to the chip (pin 7 to ground, pin 14 to +5V) and wire
    pins 1 and 2 to ground, I only measure 3V at pin 3. Shouldn't it be
    5V or close to it? I'm new to this racket so any pointers would be
    greatly appreciated.

    Tim Klinger
  2. XandMS

    XandMS Guest

    This is decided by TTL characteristic, if you want to get 5v output, you
    must use CD4011 to replace 7400
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day