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PCA9557 - Remote 8-Bit I2C and SMBus Low-Power I/O Expander

Texas Instruments

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Datasheet Details

Part number	PCA9557
Manufacturer	Texas Instruments ↗
File Size	1.37 MB
Description	Remote 8-Bit I2C and SMBus Low-Power I/O Expander
Datasheet	PCA9557-etcTI.pdf

PCA9557 Product details

Description

This 8-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 2.3-V to 5.5-V VCC operation.

Features

1 Low Standby Current Consumption of 1 μA Max.
I2C to Parallel Port Expander.
Operating Power-Supply Voltage Range of 2.3 V to 5.5 V.
5-V Tolerant I/O Ports.
400-kHz Fast I2C Bus.
Three Hardware Address Pins Allow for Use of up to Eight Devices on I2C/SMBus.
Lower-Voltage Higher-Performance Migration Path for PCA9556.
Input/Output Configuration Register.
Polarity Inversion Register.
Active-Low Reset Input.

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Published: May 15, 2020 |