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Dynamic Pass-Transistor Dot Operators for Efficient Parallel-Prefix Adders

Henrik Eriksson (Institutionen för datorteknik, Integrerade elektroniksystem) ; Per Larsson-Edefors (Institutionen för datorteknik, Integrerade elektroniksystem)
International Symposium on Circuits and Systems (ISCAS), Vancouver, CANADA. MAY 23-26, 2004 (02714310). Vol. 2 (2004), p. 461-464.
[Konferensbidrag, refereegranskat]

We employ a dynamic pass-transistor technique to drastically reduce the area requirement and power dissipation of the dot-operator cell in parallel-prefix adders. The technique is demonstrated in both 0.35 μm and 0.13 μm process technologies on a 64-bit Kogge-Stone carry tree. In a comparison with a corresponding domino implementation it is shown that the transistor count and the power dissipation can be reduced with as much as 25% and 50%, respectively. On top of the area and power reduction, the delay can also be significantly reduced by using NMOS precharge transistors, but this requires a clock signal with a higher voltage.



Denna post skapades 2006-09-12. Senast ändrad 2016-09-14.
CPL Pubid: 2306

 

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Institutioner (Chalmers)

Institutionen för datorteknik, Integrerade elektroniksystem (2002-2004)

Ämnesområden

Information Technology

Chalmers infrastruktur