PCF8574 Datasheet Remote 8-Bit I/O Expander

Manufacturer: Texas Instruments

PCF8574 remote 8-bit i/o expander by Texas Instruments - Datasheet Preview

Datasheet Details

Part number	PCF8574
Manufacturer	Texas Instruments
File Size	2.67 MB
Description	Remote 8-Bit I/O Expander
Datasheet	PCF8574 Datasheet

General Description

This 8-bit input/output (I/O) expander for the two-line bidirectional bus (I2C) is designed for 2.5V to 6V VCC operation.

The PCF8574 device provides general-purpose remote I/O expansion for most microcontroller families by way of the I2C interface [serial clock (SCL), serial data (SDA)].

The device

Overview

PCF8574 SCPS068K – JULY 2001 – REVISED SEPTEMBER 2024 PCF8574 Remote 8-Bit I/O Expander for I2C Bus.

Key Features

Low standby-current consumption of 10μA max.
I2C to parallel-port expander.
Open-drain interrupt output.
Compatible with most microcontrollers.
Latched outputs with high-current drive capability for directly driving LEDs.
Latch-up performance exceeds 100mA per JESD 78, Class II 2.

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