The QS33X253 is a high-speed CMOS 24:6 (3, dual 4:1) multiplexer/ demultiplexer. The QS33X253 is a member of the MultiWidthTM family and is functionally compatible to three of the QuickSwitch version of the 74F253, 74FCT253, and the 74ALS/AS/LS253 Dual 4:1 multiplexers. The low ON resistance of the QS33X253 allows inputs to be connected to outputs without adding propagation delay and without generating additional ground bounce noise. TTL-compatible control circuitry with "Break-before-make" feature avoids bus contention on the demux side. This part is ideal for video switching and four way memory bank interleaving applications.