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See Technical Specifications

PCF8574T +BOM

Streamline your system design with NXP's reliable I/O expander IC

Manufacturer:

Nxp
Mfr.Part #:

PCF8574T
Datasheet:

PCF8574T Datasheet (PDF)
OrderingCode:

935275617118
IsDistributor:

false
SalesNum:

PCF8574T/3,118
Price_flg:

Y
EDA/CAD Models:

Request Free CAD Models for PCF8574T

Description

The PCF8574T is a remote 8-bit I/O expander designed for use on the I2C bus. It provides a parallel I/O port with eight independent I/O pins, allowing you to interface with external devices or sensors. The device operates in a low-power CMOS technology and is packaged in a small outline (SO16) package. The PCF8574T allows you to expand your I2C-based system by adding more inputs/outputs without the need for additional wiring or complex programming. It's an excellent component for applications that require flexibility, reliability, and ease of use.

Package

The package type of PCF8574T is Small Outline Packages - SO16.

Pinout

The PCF8574T is an 8-bit I/O expander for I2C-bus, with a parallel I/O port. It has a pin count of 16 (SO16 package). The functions of the pins are:

VCC: Power supply
GND: Ground
SDA: I2C data line
SCL: I2C clock line
INT: Interrupt output
OE: Output enable
A0-A2: Address inputs (for selecting one of four possible addresses)
P0-P7: Parallel input/output pins

The PCF8574T allows you to expand the number of digital inputs and outputs in your system, while also providing a simple way to communicate with other devices over an I2C bus.

Manufacturer

The manufacturer of the PCF8574T is NXP Semiconductors. NXP Semiconductors is a leading semiconductor company that designs, manufactures, and markets a wide range of semiconductor products, including microcontrollers, sensors, and communication devices. The company was previously known as Philips Semiconductor before it was acquired by Qualcomm in 2016.

Applications

Based on the provided information, the PCF8574T remote I/O expander is designed for use with an I2C bus. Its application areas include industrial control systems, embedded systems, and IoT devices where parallel I/O connections are required. It can be used to extend the capabilities of microcontrollers by providing additional digital inputs and outputs without requiring complex programming or multiple serial buses.