How are we calculating the setup time & hold time of a f

Status
Not open for further replies.
K

kumar_eee

Advanced Member level 3
Joined
Sep 22, 2004
Messages
814
Helped
139
Reputation
276
Reaction score
113
Trophy points
1,323
Location
Bangalore,India
Activity points
4,677
Setup & Hold

Hi,
How we are calculating the setup time & Hold time of a flop?.

Kumar
 

Re: Setup & Hold

@master_picengineer,
I don't see any relative info from your post for my question.
 

Re: Setup & Hold

kumar_eee said:
@master_picengineer,
I don't see any relative info from your post for my question.
Click to expand...

Sorry it was the wrong book.
I remember a book that discuss this issue as well as signal integrity. Sorry I forget it's title.
 

Re: Setup & Hold

@hairo,
I'm looking for something else. Normally we specify Tsetup=4ns, now I want to know how this 4ns calculated for this flop?.

Anyhow, Thanks for your effort.

Kumar
 

Re: Setup & Hold

Thanks alot for this doc.. If you have more docs, please upload here...
 

Re: Setup & Hold

pls go thru morris mano book
i think it is in second chapter
ull get clear cut idea abt that

i hope ull get there
 

Setup & Hold

I think it depends upon the slew and output load bcz flip flop also has std cells right?
Reply me
Thanks
 

Re: Setup & Hold

yes it depends on slew & load but its not correct ans 4 his Ques

we can constructs FF wit min six Nand gates right

wit two stages 1st stage contains 4 nand & 2nd contains 2

i/p's & clk is given in 1st stage right

setup = propagation delay of two Nands in 1st stage

hold =propagation delay of one Nand in 2nd stage

thats y hold is alwaz less than setup

i hope itll help u

if u r unable to understand pls go thru Morris Mano
 

Re: Setup & Hold

refer this i hope it will help u
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…