Power consumption value of NAND2 gate.

[praneshcn]

For a 90nm library,

wat is the approximate power consumption value of an NAND2, inverter, buffer and DFF.
how do we calculate the value manually.

 

[jbeniston]

Depends upon the process (generic, low power, etc) as well as the cell library (speed or power optimised) and drive strength and PVT. But typical figures for a 2-input NAND, could be:

A pin: 2nW/MHz
B pin: 2.4nW/MHz

To calculate the values manually, I'd recommend running a SPICE sim, if you don't how power characterised libraries.

 

[hiral.kotak]

Hi,

It depends on the switching activity and drive strength of the cell.

Thanks..

HAK..

 

[Goldeneagle]

For theoritical aspects, It has been clearly described in

CMOS Digital Integrated Circuits: Analysis and Design
S-M. Kang and Y. Leblebici
3rd edition

Digital Integrated Circuits: A Design Perspective
J. Rabaey, A. Chandrakasan, and B. Nikolic
2nd edition