Datasheet4U Logo Datasheet4U.com

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

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.

Key Features

  • I 400kHz I2C bus compatible.
  • I 2.3V to 5.5V operation I Low stand-by current I 5V tolerant I/Os I 16 I/O pins that default to inputs at power-up I High drive capability I Individual I/O configuration I Polarity inversion register I Active low interrupt output I Internal power-on reset I No glitch on power-up I Noise filter on SDA/SCL inputs I Cascadable up to 8 devices I Industrial temperature range I RoHS-compliant 24-lead SOIC and TSSOP, and.

📥 Download Datasheet

Datasheet Details

Part number CAT9555
Manufacturer Catalyst Semiconductor
File Size 606.17 KB
Description 16-Bit I2C and SMBus I/O Port
Datasheet download datasheet CAT9555 Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
CAT9555 16-Bit I2C and SMBus I/O Port ON Semiconductor
CAT9552 16-Channel I2C-bus LED Driver ON Semiconductor
CAT9554 8-bit I2C and SMBus I/O Port ON Semiconductor
CAT9554A 8-bit I2C and SMBus I/O Port ON Semiconductor
CAT9532 16-bit Programmable LED Dimmer ON Semiconductor

Other Datasheets by Catalyst Semiconductor

Part Number Description
CAT9554 8-Bit I2C and SMBus I/O Port
CAT9554A 8-Bit I2C and SMBus I/O Port
CAT93C46 1K/2K/2K/4K/16K-Bit Microwire Serial E2PROM
CAT93C4611 Supervisory Circuits with Microwire Serial CMOS E2PROM/ Precision Reset Controller and Watchdog Timer
CAT93C4612 Supervisory Circuits with Microwire Serial CMOS E2PROM/ Precision Reset Controller and Watchdog Timer

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
www.DataSheet4U.com CAT9555 16-bit I2C and SMBus I/O Port with Interrupt FEATURES I 400kHz I2C bus compatible* I 2.3V to 5.5V operation I Low stand-by current I 5V tolerant I/Os I 16 I/O pins that default to inputs at power-up I High drive capability I Individual I/O configuration I Polarity inversion register I Active low interrupt output I Internal power-on reset I No glitch on power-up I Noise filter on SDA/SCL inputs I Cascadable up to 8 devices I Industrial temperature range I RoHS-compliant 24-lead SOIC and TSSOP, and DESCRIPTION The CAT9555 is a CMOS device that provides 16-bit parallel input/output port expansion for I2C and SMBus compatible applications.