how to define the startup state of a flipflop?

[will]

i'm looking into a flipflop that has a well defined state during
startup. can someone please tell me how to make a flip flop that
allways starts in 0-state (or 1-state) with basical ports such as and,
nand, nor, ...
thanks in advance

 

[Keith R. Williams]

In article <11116262.0307300648.3a6009a5@posting.google.com>,
limephai04@jetable.org says...

i'm looking into a flipflop that has a well defined state during
startup. can someone please tell me how to make a flip flop that
allways starts in 0-state (or 1-state) with basical ports such as and,
nand, nor, ...

Reset (or set) it on power on. Depending on the power characteristics
and allowable glitches, the circuit may be a simple RC network or
something more complicated.

--
Keith

 

[eromlignod]

limephai04@jetable.org (will) wrote in message news:<11116262.0307300648.3a6009a5@posting.google.com>...

i'm looking into a flipflop that has a well defined state during
startup. can someone please tell me how to make a flip flop that
allways starts in 0-state (or 1-state) with basical ports such as and,
nand, nor, ...
thanks in advance

You just need a flip-flop with a "clear" line.

Don

 

[will]

this has been a great help, but it seems like i wont be able to go
around the use of a capacitor which is where i am searching for.
thank you very much!