MC74HC4049 - Hex Buffers/Logic-Level Down Converters
MOTOROLA SEMICONDUCTOR TECHNICAL DATA Hex Buffers/Logic-Level Down Converters High Performance Silicon Gate CMOS The MC54/74HC4049 consists of six inverting buffers, and the MC54/74HC4050 consists of six noninverting buffers.
They are identical in pinout to the MC14049UB and MC14050B metal gate CMOS buffers.
The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs.
The input protection circuitry on these