The CD4504BPW is a CMOS Hex Voltage Level Shifter for TTL-to-CMOS or CMOS-to-CMOS operation. It consists of six circuits which shift input signals from the VCC logic level to the VDD logic level. To shift TTL signals to CMOS logic levels, the SELECT input is at the VCC high logic state. When the SELECT input is a low logic state, each circuit translates signals from one CMOS level to another.
Independence of power-supply sequence considerations
Up and down level-shifting capability
Shiftable input threshold for either CMOS or TTL compatibility
