CMOS VLSI design. What is standard Cell Library? Find out the Standard Cell Library for
Master Slave J-K Flip Flop.
Solution
a standard cell library is the collection of logic gates such as
AND,OR,INVERT,flipflops,latches,buffers.the main aspect of this cells is that they are of fixed
height which allows them to be placed in rows making easy the process of automated digital
layout.the cells are typically optimized full custom layouts,which minimize area and delays.
standard cell library contains two main components:
1) library database -it contains views like layout,schematic,symbol,abstract and other logical
views.
Various information in cadence LEF format,synopsys milkyway format contain reduced
information of cell layouts.
2) timing abstact-it is in liberty format whiich gives functional definitions ,timing,power and
noise definitions for each cell.
example is XOR gate which is formed from AND,OR and INVERT gates.
master slave JK flipflop contains AND and INVERT logic gates.
it contains master latch and slave latch..
CMOS VLSI design. What is standard Cell Library Find out the Standa.pdf
1. CMOS VLSI design. What is standard Cell Library? Find out the Standard Cell Library for
Master Slave J-K Flip Flop.
Solution
a standard cell library is the collection of logic gates such as
AND,OR,INVERT,flipflops,latches,buffers.the main aspect of this cells is that they are of fixed
height which allows them to be placed in rows making easy the process of automated digital
layout.the cells are typically optimized full custom layouts,which minimize area and delays.
standard cell library contains two main components:
1) library database -it contains views like layout,schematic,symbol,abstract and other logical
views.
Various information in cadence LEF format,synopsys milkyway format contain reduced
information of cell layouts.
2) timing abstact-it is in liberty format whiich gives functional definitions ,timing,power and
noise definitions for each cell.
example is XOR gate which is formed from AND,OR and INVERT gates.
master slave JK flipflop contains AND and INVERT logic gates.
it contains master latch and slave latch.
