PCA9306

depends on the system, but each side of the repeater must have a pullup resistor. The device is designed to

Under certain conditions, high termination currents can be used.

When the SDA1 or SDA2 port is low, the clamp is in the ON state, and a low resistance connection exists

between the SDA1 and SDA2 ports. Assuming the higher voltage is on the SDA2 port when the SDA2 port is

seamless translation between higher and lower voltages selected by the user, without the need for directional

control. The SCL1/SCL2 channel also functions as the SDA1/SDA2 channel.

All channels have the same electrical characteristics, and there is minimal deviation from one output to another in

voltage or propagation delay. This is a benefit over discrete transistor voltage translation solutions, since the

fabrication of the switch is symmetrical. The translator provides excellent ESD protection to lower-voltage devices

and at the same time protects less ESD-resistant devices.t

ORDERING INFORMATION

ORDERABLE PART NUMBER

Reel of 3000

PCA9306DCTR

SSOP – DCT

7BD_ _ _

Reel of 250

PCA9306DCTT

–40°C to 85°C

Reel of 3000

PCA9306DCUR

VSSOP – DCU

7BD_

Reel of 250

PCA9306DCUT

(1)

Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.

(2)

For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI

website at www.ti.com.

(3)

DCT: The actual top-side marking has three additional characters that designate the year, month, and wafer fab/assembly site.

DCU: The actual top-side marking has one additional character that designates the assembly/test site.

TERMINAL FUNCTIONS

TERMINAL

DESCRIPTION

NAME

NO.

GND

1

Ground, 0 V

2

Low-voltage-side reference supply voltage for SCL1 and SDA1

SCL1

3

Serial clock, low-voltage side

SDA1

4

Serial data, low-voltage side

SDA2

5

Serial data, high-voltage side

SCL2

6

Serial clock, high-voltage side

7

High-voltage-side reference supply voltage for SCL2 and SDA2

EN

8

Switch enable input

2

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