资 源 简 介
MM54HC125/MM74HC125MM54HC126/MM74HC126TRI-STATEÉ Quad BuffersGeneral DescripTIonThese are general purpose TRI-STATE high speed non-inverTIngbuffers uTIlizing advanced silicon-gate CMOS technology.They have high drive current outputs which enablehigh speed operaTIon even when driving large bus capacitances.These circuits possess the low power dissipation ofCMOS circuitry, yet have speeds comparable to low powerSchottky TTL circuits. Both circuits are capable of driving upto 15 low power Schottky inputs.The MM54HC125/MM74HC125 require the TRI-STATEcontrol input C to be taken high to put the output into thehigh impedance condition, whereas the MM54HC126/MM74HC126 require the control input to be low to put theoutput into high impedance.All inputs are protected from damage due to static dischargeby diodes to VCC and ground.FeaturesY Typical propagation delay: 13 nsY Wide operating voltage range: 2±6VY Low input current: 1 mA maximumY Low quiescent current: 80 mA maximum (74HC)Y Fanout of 15 LS-TTL loads
