High-performance crossbar design for system-on-chip

A new low-swing pass-transistor logic style for designing high-performance crossbar switches for system-on-chip applications is proposed The new pass-transistor architecture uses current-switching and end-to-end swing restoration to improve the crossbar performance. The architecture is verified in 0.35 and 0.25 mum CMOS technology. The 4-b 4x 4 crossbar switch in 0.35 mum CMOS occupied an area of 1.4 mum(2) and achieved 36 Gb/s. Analysis suggests that the new logic style can be used to design multi-Tb/s crossbar switches in 0.18 mum and lower CMOS technology.