The ON Semiconductor 74FST3253 is a dual 4:1, high performance multiplexer/demultiplexer bus switch. The device is CMOS TTL compatible when operating between 4 and 5.5 Volts. The device exhibits extremely low RON and adds nearly zero propagation delay. The device adds no noise or ground bounce to the system.

FEATUREs
• RON < 4 Ω Typical
• Less Than 0.25 ns−Max Delay Through Switch
• Nearly Zero Standby Current
• No Circuit Bounce
• Control Inputs are TTL/CMOS Compatible
• Pin−For−Pin Compatible With QS3253, FST3253, CBT3253
• Popular Packages: QSOP−16, TSSOP−16, SOIC−16
• All Devices in Package TSSOP are Inherently Pb−Free*