FST3257QSCX Datasheet PDF - Fairchild

●General Description

●The Fairchild Switch FST3257 is a quad 2:1 high-speed CMOS TTL-compatible multiplexer/demultiplexer bus switch. The low on resistance of the switch allows inputs to be connected to outputs without adding propagation delay or generating additional ground bounce noise.

●When OE is LOW, the select pin connects the A Port to the selected B Port output. When OE is HIGH, the switch is OPEN and a high-impedance state exists between the two ports.

●Features

●■ 4Ω switch connection between two ports.

●■ Minimal propagation delay through the switch.

●■ Low ICC.

●■ Zero bounce in flow-through mode.

●■ Control inputs compatible with TTL level.