This datasheet describes the features of the FST32211 40/48-Bit Bus Switch, including 40/48-Bit High-Speed CMOS TTL-Compatible Bus Switching, Low On Resistance of the switch, Minimal Propagation Delay through the switch, Low lCC, Zero bounce in flow-through mode, Control inputs compatible with TTL level, Packaged in plastic Fine Pitch Ball Grid Array (FBGA)