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MM54HC251/MM74HC2518-Channel TRI-STATEÉ MulTIplexerGeneral DescripTIonThis 8-channel digital mulTIplexer with TRI-STATE outputsuTIlizes advanced silicon-gate CMOS technology. Along withthe high noise immunity and low power consumption ofstandard CMOS integrated circuits, it possesses the abilityto drive 10 LS-TTL loads. The large output drive capabilityand TRI-STATE feature make this part ideally suited for interfacingwith bus lines in a bus oriented system.This multiplexer features both true (Y) and complement (W)outputs as well as a STROBE input. The STROBE must beat a low logic level to enable this device. When the STROBEinput is high, both outputs are in the high impedance state.When enabled, address information on the data select inputsdetermines which data input is routed to the Y and Woutputs. The 54HC/74HC logic family is speed, function, aswell as pinout compatible with the standard 54LS/74LS logicfamily. All inputs are protected from damage due to staticdischarge by internal diode clamps to VCC and ground.
