The TMUX646 has 1.2-V logic compatible control inputs. Regardless of the V_DD voltage, the 1.2-V logic level inputs allow the TMUX646 to interface with processors that have lower logic I/O rails and eliminates the need for an external voltage translator, which saves both space and BOM cost. For more information on 1.2 V and 1.8 V logic implementations, refer to Simplifying Design with 1.8 V logic Muxes and Switches.