CAT9555 Datasheet 16-Bit I2C and SMBus I/O Port

Manufacturer: onsemi

CAT9555 16-bit i2c and smbus i/o port by onsemi - Datasheet Preview

Datasheet Details

Part number	CAT9555
Manufacturer	onsemi
File Size	172.81 KB
Description	16-Bit I2C and SMBus I/O Port
Datasheet	CAT9555 Datasheet

General Description

The CAT9555 is a CMOS device that provides 16−bit parallel input/output port expansion for I2C and SMBus compatible applications.

These I/O expanders provide a simple solution in applications where additional I/Os are needed: sensors, power switches, LEDs, pushbuttons, and fans.

The CAT9555 consists of two 8−bit Configuration ports (input or output), Input, Output and Polarity inversion registers, and an I2C/SMBus−compatible serial interface.

Overview

CAT9555 16-bit I2C and SMBus I/O Port with Interrupt.

Key Features

an active low interrupt output which indicates to the system master that an input state has changed. The three address input pins provide the device’s extended addressing capability and allow up to eight devices to share the same bus. The fixed part of the I2C slave address is the same as the CAT9554, allowing up to eight of these devices in any combination to be connected on the same bus. Features.
400 kHz I2C Bus Compatible.
2.3 V to 5.5 V Operation.
Low Stand.

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