Latch Timing requirements

[kumar_eee]

Does latch has timing requirements like setup & hold in flip-flop?

 

[Waqas_MicroSolutions]

Yes of course..

 

[kumar_eee]

Hi Waqas_MicroSolutions,
Can you define setup & hold time for a latch? Which clock edge you check for the setup?

 

[yx.yang]

Hi Waqas_MicroSolutions,
Can you define setup & hold time for a latch? Which clock edge you check for the setup?

Hi, You can search this on google and also in the document of Synopsys Design Compiler.

 

[fawadbutt]

hi waqas can u explain the hold time for latch..?

 

[lostinxlation]

hi waqas can u explain the hold time for latch..?

A flop is made of two latches. The hold time for latch has nothing different from that of flop.

 

[phoenixpavan]

Hi Kumar,

Yes a latch has setup and hold timing requirements similar to a flip flop....But in latch based designs we usually use two phase clocks so that we can make use of the time borrowing concept..so the checks will be done as




cheers,

 

[birdy123]

hi Kumar,

pavan is correct. If you need to understand the timeBorrowing concept please cehck the following post.
VLSI Concepts: Static Timing Analysis (STA) basic: Part2 - "Time Borrowing"

 

[kumar_eee]

Hi Pavan & birdy, Thanks alot. I'll look into the page & get back to you if I've any doubt.