What is the setup time?

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raghu836

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plz tell me the set up time
 

setup time wiki

setuptime the time required for a signal to be stable before the clock edge.
this due to the rise time and fall time of the clock signal.
 

    raghu836

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register setup time typical value

Why do we need setup time and hold time?
 

wikipedia, wat parameters

V need these parameters so tht .. output of flipflop is not ambiguous !! ie

if there is any change in input signal of FF during Latching period .. output of ff is not defined .. it can b 0 or 1
 

setup time hold time + wiki

because flip flop need prepare time
 

why is input and setup times important

the setup time is related to the specific application if the setup time refers to the chip, but if the setup time refers to the design of the chip, as is answered above.
 

what is data setup time

the min stable time of data before being sampled
 

setup time of flip flop

Set up time and hold time are important timing parameters in digital components having clock and data together. In these components data must constant for some times, the time which data must be constant before the active clock pulse is called set up time and the time which data must stable after the active clock is called hold time.

All circuit components take some time for processing the input and plotting the out put usually called time delays. In the processing time of input the data must me constant; it may either logic HIGH or LOW. Other wise we will not get required out put.

With Regards
Ajish Babu S
 

-ve data setup time

Set Up time is the minimum time required by drain to substrate coupling capacitance to charge.
 

rise setup time

set up time is the time that input(s) must be stable befor clock edge comming.
it is estimated by worst case of skewed time of clock and rise slop (or fall slop) of clock.

for moe information see timing of flip-flop
http://en.wikipedia.org/wiki/Flip-flop_(electronics)
 

setup time wikipedia

set up time is the time that input must be stable before being sampled .
 

Re: wat is setup time

Setup and hold time are important parametars for every memory element.

Setup time is required time for stabile input before write edge. Hold time is required time for stabile input after write edge.

Some typical values are 10ns for setup time and 2ns for hold time. For some memory elements hold time is 0ns.
 

Re: wat is setup time

setup time and hold time are two parameters considered in the timing of devices.
for example in flipflops the timing of the response of a flipflop to input data and clock must be taken into consideration when using edge-triggered flipflops.there is a minimun time called setup time for which the input must be maintained at a constant value prior to the occurrence of the clock transition.
 

Re: wat is setup time

please see for a detailed response
 

Re: wat is setup time

Setup time is the amount of time before which the data must appear at the input of the flop before the clock arrives.
 

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