74LS04 chip

Discussion in 'Homework Help' started by jessi, May 25, 2005.

  1. jessi

    Thread Starter New Member

    Apr 12, 2005
    6
    0
    Can someone tell me what the recommended operating voltage for the 74LS04 chip is as well as what the maximum operating voltage is? I just started this Digital class and for some reason the book I have doesn't list this, even though it lists all the others....go figure???

    Thanks
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    Hi,

    The normal operating voltage for 74LS is 5 volts. My Signetics TTL manual says that it will go to 7 volts before the smoke comes out, but I'd get real nervous going above 6 volts. That's probably because I used straight TTL for so many years. The output current should not exceed 15 mills, too.
     
  3. pebe

    AAC Fanatic!

    Oct 11, 2004
    628
    3
    You can get a datasheet on this, or almost any other IC, from:

    http://www.datasheetarchive.com/datasheet/pdf/2916.html
     
  4. atferrari

    AAC Fanatic!

    Jan 6, 2004
    2,575
    718
    I always worked TTL and TTL LS with 5V nominal.

    VERY SELDOM close to 5,25 V (probably once or twice) and quite often close to 4,85 V.

    Nominal value is 5 V and there are lot of regulators available that bring you always there.

    From all what I recall I've never worked above 5,25 V and I think there was a bad experience even there... and some warm feeling...

    That's why I still love CMOS. But that is another story.
     
  5. jessi

    Thread Starter New Member

    Apr 12, 2005
    6
    0
    Thanks for the reply. That helps!!

    Jessi
     
  6. jessi

    Thread Starter New Member

    Apr 12, 2005
    6
    0
Loading...