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[Ideas For Design]
Make A Dual ECL Latch Function As A Dual R-S Flip-Flop

Sanjay R. Chendvankar  |   ED Online ID #7704  |   April 12, 2004


The MC1030 is a clocked dual D-type latch. Any change in the D input will be reflected at the output while the clock is low. The outputs are latched on the clock's positive transition. Also, this device features set and reset inputs that don't override the clock and D inputs. They're effective only when one of the clock inputs is high.

Even though this IC is supposed to work as a latch circuit, it can also be made to function as an R-S flip-flop. No external hardware is required, except for an RC combination for power-on reset. Also, a clock isn't necessary for its operation. That's because this latch IC is supplied with R and S inputs for latch initialization. The figure shows one of the latches configured as an R-S flip-flop. The R-S flip-flop's truth table uses +ve logic (see the table).


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    Reader Comments

    i m satisfied about yhe lactures but i need more information about the topic so plz send me with example.

    aamir mehboob -April 04, 2008

    this is a very good site to gain good knowledge.I am an engineering student and I would like to know the ic number for cmos positive edge triggered sr flip flop.please send me my request

    rajesh -January 09, 2008

    This website is very good. As an engineering student, I can get a lot of knowledge from this website. I want to know IC with RS Flip Flop.If you don't mind, please send to me data sheet.

    Aung Ko Latt -July 16, 2005

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