DCT OR DCU PACKAGE

(TOP VIEW)

1

SCL_B

8

2

7

V

CCB

3

6

OE

4

5

SDA_B

GND

V

CCA

SDA_A

SCL_A

YZP PACKAGE

(BOTTOM VIEW)

SDA_A

5

4

SCL_A

3 6

OE

V

CCA

2 7

V

CCB

GND

8

SCL_B

1

SDA_B

A1

B1

C1

D1

A2

B2

C2

D2

TCA9406

www.ti.com

SCPS221 – JULY 2010

8kV HBM ESD

Check for Samples: TCA9406

1

FEATURES

TYPICAL LEVEL-SHIFTER

APPLICATIONS

2

•

2-Bit Bidirectional Translator for SDA and SCL

•

•

UART

•

Lock-Up Free for Bus Isolation when OE

•

GPIO

Tolerant

•

Level Translation Range

–

1.8 V to 2.5 V/3.3 V/5 V

–

2.5 V to 2.5 V/3.3 V/5 V

–

3.3 V to 3.3 V/5 V

•

Internal10-k

Ω Pullup Resistor on Each Port

and Option to Add External Pullup Resistor if

Required

•

Provides Bidirectional Voltage Translation

With No Direction Pin

•

With 2 mA

•

High-Impedance Output SCL1, SDA1, SCL2,

•

Latch-Up Performance Exceeds 100 mA Per

JESD 78, Class II

•

ESD Protection Exceeds JESD 22

–

A Port

–

2500-V Human-Body Model (A114-B)

–

250-V Machine Model (A115-A)

–

1500-V Charged-Device Model (C101)

–

B Port

–

8-kV Human-Body Model (A114-B)

–

250-V Machine Model (A115-A)

–

1500-V Charged-Device Model (C101)

DESCRIPTION/ORDERING INFORMATION

operational from 1.65 V to 3.6 V on A-Port and 2.3 V to 5.5 V on B-port. Enable (OE) input is referenced to

The TCA9406 can operate up to 24Mbps in push pull mode and 2Mbps with open drain mod. Its compatible

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

NanoStar is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Copyright © 2010, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.