TCA9539 - Low Voltage 16-Bit I2C and SMBUS Low-Power I/O Expander

Product Overview

Texas Instruments

Datasheet Details

Part number	TCA9539
Manufacturer	Texas Instruments
File Size	2.85 MB
Description	Low Voltage 16-Bit I2C and SMBUS Low-Power I/O Expander
Datasheet	TCA9539 Datasheet
Additional preview pages of the TCA9539 datasheet.

Product details

Description

The TCA9539 is a 24-pin device that provides 16 bits of general purpose parallel input and output (I/O) expansion for the two-line bidirectional I2C bus (or SMBus protocol).

Features

1 I2C to Parallel Port Expander.
Low Standby-Current Consumption.
Open-Drain Active-Low Interrupt Output.
Active-Low Reset Input.
5-V Tolerant I/O Ports.
Compatible With Most Microcontrollers.
400-kHz Fast I2C Bus.
Input and Output Configuration Register.
Polarity Inversion Register.
Internal Power-on Reset.
No Glitch on Power Up.
Noise Filter on SCL and SDA Inputs.
Address by Two.

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Published: Dec 22, 2020 |