Title :
New High-Speed Multioutput Carry Look-Ahead Adders
Author :
Efstathiou, C. ; Owda, Zaher ; Tsiatouhas, Y.
Author_Institution :
Technol. & Educ. Inst. of Athens, Athens, Greece
Abstract :
In this brief, an efficient implementation of an 8-bit Manchester carry chain (MCC) adder in multioutput domino CMOS logic is proposed. The carries of this adder are computed in parallel by two independent 4-bit carry chains. Due to its limited carry chain length, the use of the proposed 8-bit adder module for the implementation of wider adders leads to significant operating speed improvement compared to the corresponding adders based on the standard 4-bit MCC adder module.
Keywords :
CMOS logic circuits; adders; carry logic; MCC adder; Manchester carry chain adder; adder module; carry chain length; high-speed multioutput carry look-ahead adders; multioutput domino CMOS logic; word length 4 bit; word length 8 bit; Adders; CMOS integrated circuits; Equations; Logic gates; Multiplexing; Standards; Very large scale integration; Carry look-ahead (CLA) adders; Manchester carry chain; multioutput domino logic;
Journal_Title :
Circuits and Systems II: Express Briefs, IEEE Transactions on
DOI :
10.1109/TCSII.2013.2278088
