Use full for 3.3V to 5V voltage level converter.The 74HC4050 provides six non-inverting buffers with a modified input protection structure, which has no diode connected to VCC. Input voltages of up to 15 V may therefore be used. This feature enables the non-inverting buffers to be used as logic level translators, which will convert high level logic to low level logic, while operating from a low voltage power supply. For example 15 V logic (“4000B series”) can be converted down to 2 V logic. The actual input switch level remains related to the VCC and is the same as mentioned in the family characteristics.