Browse Prior Art Database

FAST NMOS ADDER Disclosure Number: IPCOM000025872D
Original Publication Date: 1988-Aug-31
Included in the Prior Art Database: 2004-Apr-04

Publishing Venue

Xerox Disclosure Journal


A fast carry-look-ahead adder useful for new VLSI designs. A 16-bit version of this adder has been implemented which calculates a sum in less than 50 nanoseconds (including pad delays). Simulations of a 37-bit adder with stronger pullups indicate the even faster add times that can be achieved.