PCA9557BS – PHILIPS

Part Number:

PCA9557BS

Manufacturer:

PHILIPS

Date Code:

RoHS:

RoHS Compliant

MSL:

COO:

PHILIPPINES

Description:

400 kHz I2C/SMBus Expander IC, 16‑HVQFN

Datasheet:

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Product Details:

Overview

The PCA9557BS is a remote 4-bit I2C and SMBus I/O expander from PHILIPS Semiconductors. This integrated circuit provides general-purpose parallel input/output (GPIO) expansion for I2C bus systems. It is housed in a space-saving 16-HVQFN package and operates at a maximum I2C clock frequency of 400 kHz.

Key Features

4-bit I/O Port
I2C-bus Interface
SMBus Compatible
400 kHz Fast Mode Plus

Applications

This I/O expander is commonly used in systems requiring additional digital input or output capabilities beyond what is directly available on a microcontroller or processor. It is suitable for a variety of embedded control and monitoring tasks.

LED Control
Sensor Monitoring
Button/Switch Input