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PCA9554A - Remote 8-Bit I2C and SMBus I/O Expander

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Texas Instruments

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PCA9554A Remote 8-Bit I2C and SMBus I/O Expander by Texas Instruments - Datasheet Preview — Datasheet preview – PCA9554A

Datasheet Details

Part number	PCA9554A
Manufacturer	Texas Instruments
File Size	2.01 MB
Description	Remote 8-Bit I2C and SMBus I/O Expander
Datasheet	PCA9554A Datasheet
Additional preview pages of the PCA9554A datasheet.

PCA9554A 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.

It provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface [serial clock (SCL), serial data (SDA)].

Features

1 I2C to Parallel Port Expander.
Open-Drain Active-Low Interrupt Output.
Operating Power-Supply Voltage Range of 2.3 V to 5.5 V.
5-V Tolerant I/Os.
400-kHz Fast I2C Bus.
Three Hardware Address Pins Allow up to Eight Devices on the I2C/SMBus.
Input/Output Configuration Register.
Polarity Inversion Register.
Internal Power-On Reset.
Power-Up With All Channels Configured as Inputs.
No Glitch on Power.

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Published: May 15, 2020 |