Master

I2C

Bus

I2C

Bus

Devices

1.8V

0.1 F

3.3V

V

CCA

V

CCB

SDA_A

SDA_B

SCL_A

SCL_B

OE

Optional Resistors

Design Notes:

OE can be directly tie to 1.8V (VccA), if the chip wants all the ways ENABLE Mode.

Master

I2C

Bus

I2C

Bus

Devices

1.8V

0.1 F

3.3V

V

CCA

V

CCB

SDA_A

SDA_B

SCL_A

SCL_B

OE

Optional Resistors

Design Notes:

OE can be directly tie to 1.8V (VccA), if the chip wants all the ways ENABLE Mode.

TCA9406

www.ti.com

SCPS221 – JULY 2010

TYPICAL OPERATING CIRCUIT

Copyright © 2010, Texas Instruments Incorporated

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