74HC125 pdf datasheet

MM54HC125/MM74HC125
MM54HC126/MM74HC126
TRI-STATEÉ Quad Buffers
General Description
These are general purpose TRI-STATE high speed non-inverting
buffers utilizing advanced silicon-gate CMOS technology.
They have high drive current outputs which enable
high speed operation even when driving large bus capacitances.
These circuits possess the low power dissipation of
CMOS circuitry, yet have speeds comparable to low power
Schottky TTL circuits. Both circuits are capable of driving up
to 15 low power Schottky inputs.
The MM54HC125/MM74HC125 require the TRI-STATE
control input C to be taken high to put the output into the
high impedance condition, whereas the MM54HC126/
MM74HC126 require the control input to be low to put the
output into high impedance.
All inputs are protected from damage due to static discharge
by diodes to VCC and ground.
Features
Y Typical propagation delay: 13 ns
Y Wide operating voltage range: 2±6V
Y Low input current: 1 mA maximum
Y Low quiescent current: 80 mA maximum (74HC)
Y Fanout of 15 LS-TTL loads