Quad 3-State Buffer IC - 74HC126
The 74HC Series 74HC126 is a 14 Pin Quad 3-State Non-Inverting Buffer IC having 4 independent gates with 4.75V to 5.25V Operating Voltage and 8mA output current. When 3-states are enabled, the outputs exhibit the low impedance characteristics of a standard HC output with additional drive capability to permit the driving of bus lines without external resistors. When disabled, both the output transistors are turned OFF presenting a high-impedance state to the bus line.
check out : Quad Tri-state Buffer IC - 74HC125
Pinout:
Pinout Of 74HC126 IC