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CAT9554 Datasheet 8-bit I2c And Smbus I/o Port

Manufacturer: Catalyst Semiconductor

Overview: .. CAT9554, CAT9554A 8-bit I2C and SMBus I/O Port with Interrupt.

Datasheet Details

Part number CAT9554
Manufacturer Catalyst Semiconductor
File Size 305.02 KB
Description 8-Bit I2C and SMBus I/O Port
Datasheet CAT9554_CatalystSemiconductor.pdf

General Description

The CAT9554 and CAT9554A are CMOS devices that provide 8-bit parallel input/output port expansion for I2C and SMBus patible 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 CAT9554/9554A consist of an input port register, an output port register, a configuration register, a polarity inversion register and an I2C/SMBus-patible serial interface.

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 8 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 16-lead SOIC and TSSOP, and.

CAT9554 from other manufacturers

See all manufacturers

Brand Logo Part Number Description Other Manufacturers
ON Semiconductor Logo CAT9554 8-bit I2C and SMBus I/O Port ON Semiconductor
ON Semiconductor Logo CAT9554A 8-bit I2C and SMBus I/O Port ON Semiconductor

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