TCA9554A - Low Voltage 8-Bit I2C and SMBus Low-Power I/O Expander

Product Overview

Texas Instruments

Datasheet Details

Part number	TCA9554A
Manufacturer	Texas Instruments
File Size	2.34 MB
Description	Low Voltage 8-Bit I2C and SMBus Low-Power I/O Expander
Datasheet	TCA9554A Datasheet
Additional preview pages of the TCA9554A datasheet.

Product details

Description

The TCA9554A is a 16-pin device that provides 8 bits of general purpose parallel input-output (I/O) expansion for the two-line bidirectional I2C bus (or SMBus) protocol.

The device can operate with a power supply voltage ranging from 1.65 V to 5.5 V.

Features

1 I2C to Parallel Port Expander.
Open-Drain Active-Low Interrupt Output.
Operating Power-Supply Voltage Range of 1.65 V to 5.5 V.
5-V Tolerant I/O Ports.
400-kHz Fast I2C Bus.
Three Hardware Address Pins Allow up to Eight Devices on the I2C/SMBus.
Input and Output Configuration Register.
Polarity Inversion Register.
Internal Power-On Reset.
Low Standby Current Consumption.
Power-Up With All Channel.

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Published: Oct 15, 2019 |