MM74HC253

The MM54HC253/MM74HC253 utilizes advanced silicongate CMOS technology to achieve the low power consumption and high noise immunity of standard CMOS integrated circuits, along with the capability to drive 10 LS-TTL loads.

The large output drive and TRI-STATE features of this MM74HC253 make it ideally suited for interfacing with bus lines in bus organized systems. When the output control input is taken high, the multiplexer outputs are sent into a high impedance state.

When the output control of MM74HC253 is held low, the associated multiplexer chooses the correct output channel for the given input signals determined by the select A and B inputs.

The MM74HC253 is functionally and pinout compatible with the standard 54LS/74LS logic family. All inputs are protected from damage due to static discharge by internal diode clamps to V_CC and ground.