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TCA9546A: High Voltage equivalent

Part Number: TCA9546A
Other Parts Discussed in Thread: P82B715

hi TiTeam,

can you suggeste an equivalent Part with a input bus voltage range beond 20 V or at least 20 V not the max 7V?

Or do you may have an extended specification for the part?

Best regards,


  • Hi Severin,

    As 20V is far outside the specified voltage range for standard I2C communication, we don't offer any I2C switches that are compatible with these ranges. P82B715 is a bus extender which offers up to 12V compatibility, but this is for the more niche purpose of bus extension. 

    For what purpose do you plan to use a 20V I2C switch? Will you be switching 20V I2C signals or do you wish to control 20V lines with I2C commands? There may be a way to use a standard I2C switch in combination with external voltage translation to achieve such functionality. 

    Eric Schott