PCF8574ADWR – TEXAS INSTRUMENTS

Part Number:

PCF8574ADWR

Manufacturer:

TEXAS INSTRUMENTS

Date Code:

RoHS:

RoHS Compliant

MSL:

COO:

TAIWAN

Description:

I²C Expander IC, 100 kHz, 16‑SOIC

Datasheet:

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Product Details:

Overview

The PCF8574ADWR is an I²C-bus controlled I/O expander manufactured by Texas Instruments. This integrated circuit provides 8-bit parallel input/output port expansion for microcontrollers with limited I/O pins via the two-line bidirectional I²C serial bus. It operates at a clock frequency of 100 kHz and is supplied in a 16-pin SOIC (Small Outline Integrated Circuit) package.

Key Features

8-Bit Parallel I/O Expansion
I²C Serial Interface
100 kHz Clock Frequency
16-SOIC Package

Applications

This I²C expander is commonly used to increase the number of available I/O ports in embedded systems. It is suitable for various applications where additional digital inputs or outputs are required, especially when the microcontroller’s I/O resources are constrained.

LED Matrix Control
Keypad Interface
Sensor Data Acquisition