Question

two characteristics of standard cell​

Answer 1

Answer:

Explanation:

• During the layout design of the cells, the cells are built using a predefined

template that will ensure that all the requirements are met. The template

includes the height of the cell, the placement of wells, N transistors, and P

transistors, and guidelines to follow so that the cell can be flipped vertically

or horizontally and can be placed beside all other cells without creating

errors such as DRC violations.

• Cells are rectangular.

• Cells for specific rows or chip areas are all the same height—a library may

contain multiple sets of cells. For example, different cells will be used for

logic, datapath, and I/O areas.

• Every cell length is rounded up to a multiple of a coarse grid. This grid is

determined by either of the following:

A specific design rule (such as the minimum well width)

A desire to make placement easier and faster (using a coarse grid reduces

the number of possible placement coordinates, thus accelerating the

placement process)

• The power supply lines have a predefined width and position for the entire

library—the width of the supply over the cell length is always consistent.

Re: characteristics of standard cell

Answer 2

Two characteristics of a standard cell are as follows.

A standard cell produces direct current in an electrical circuit.

These cells are use chemical reaction in order to produce an electrical energy.

Explanation:

A standard cell is defined as a voltaic cell which tends to produce a constant and accurate electromotive force which is actually used to calibrate voltage measuring instruments.

Two characteristics of a standard cell are as follows.

• A standard cell produces direct current in an electrical circuit.

• These cells are use chemical reaction in order to produce an electrical energy.

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