TCA9545A Datasheet Low Voltage 4-channel I2C and SMbus Switch

Manufacturer: Texas Instruments

TCA9545A low voltage 4-channel i2c and smbus switch by Texas Instruments - Datasheet Preview

Datasheet Details

Part number	TCA9545A
Manufacturer	Texas Instruments
File Size	0.98 MB
Description	Low Voltage 4-channel I2C and SMbus Switch
Datasheet	TCA9545A Datasheet

General Description

The TCA9545A is a quad bidirectional translating switch controlled via the I2C bus.

The SCL/SDA upstream pair fans out to four downstream pairs, or channels.

Any individual SCn/SDn channel or combination of channels can be selected, determined by the contents of the programmable control register.

Overview

Product Folder Order Now Technical Documents Tools & Software Support & Community TCA9545A SCPS204D – JANUARY 2014 – REVISED NOVEMBER 2019 TCA9545A Low Voltage 4-channel I2C and SMbus Switch With Interrupt Logic and.

Key Features

1 1-of-4 Bidirectional translating switches.
I2C bus and SMBus compatible.
Four active-low interrupt inputs.
Active-low interrupt output.
Active-low reset input.
Two address terminals, allowing up to four devices on the I2C bus.
Channel selection via I2C bus, in any combination.
Power-up with all switch channels deselected.
Low RON switches.
Allows voltage-level translation between 1.8-V, 2.5-V, 3.3-V, and.

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