why 7474 is need to produce a clock signal,

Discussion in 'General Electronics Chat' started by namara, Feb 20, 2011.

  1. namara

    Thread Starter New Member

    Oct 2, 2010
    im trying to understand a 555 chip to a 7474 dual d flip flop circuit.

    why is the flip flop in (toggle mode) needed to produce a clock signal.

    can the 555 not do this on its own!,

  2. Ron H

    AAC Fanatic!

    Apr 14, 2005
    If you need a 50% duty cycle clock, that may be the best way to do it. Otherwise, as you say, you don't need the FF. You can also use a CMOS 555 to get a pretty good 50% duty cycle, without the FF.
    namara likes this.