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TTL

Discussion in 'Electronic Basics' started by novice, Dec 25, 2005.

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  1. novice

    novice Guest

    since CMOS is more advantageous than TTL logic family then why still
    TTL's are used in some applications?In what way TTL's are usefull?
    merry christmas and thanks a lot in advance.
     
  2. Guest

    And posybly higher frequency switching
     
  3. Sjouke Burry

    Sjouke Burry Guest

    CMOS has safety problems with static, can deliver less ouput
    current(compare cmos 555 timer with the non-cmos),you cannot
    leave any input open when experimenting.
    TTL circuits facing the outside world are more robuust,having
    buildin pullup currents on inputs works very nice when
    interfacing switches, any input when open is in the "1" state,
    I leave the rest of the advanteges to other people.
    Now start flaming!!....
     
  4. Jamie

    Jamie Guest

    output load.
     
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