PCF8575DWR

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The PCF8575DWR is an I/O expander that connects to a microprocessor’s I/O bus to expand the number of available general-purpose I/O pins. This I/O expander is capable of providing 8-bit parallel input/output control functions for I²C-bus/SMBus based applications.

The PCF8575DWR is designed to work with general purpose I/Os such as switches and LEDs. The PCF8575DWR can also be used to interface with digital inputs like buttons, switches and rpm sensors. The I/O expander also offers many other features that enhance its connection with digital outputs like buzzers, relays and motor drivers.

The PCF8575DWR provides an inexpensive solution for expanding the I/O capability of an application. It can be used in various bus-based applications such as system controller applications, audio equipment, security and surveillance systems, robotics, SCADA systems, and automation control systems. The I/O expander supports two I²C-bus/SMBus protocols – the I²C-bus and the SMBus.

The PCF8575DWR can be used to monitor and control multiple processes simultaneously. The I/O expander supports different protocols such as 8-bit I/O, 8-bit I2C-compatible, and 8-bit SMBus compatible. These protocols allow the I/O expander to be used for controlling digital input or output devices.

The PCF8575DWR offers a variety of features that make it suitable for use in many applications. It has a wide operating voltage range from 2.0V to 6.5V. It has an integrated 32kHz oscillator and supports both 100kHz and 400kHz I²C-bus bit rates. The I/O expander also supports up to 128 bytes of I2C-/SMBus data.

The PCF8575DWR also offers low-power operation and industry-standard communication interface. It has an integrated low-power shutdown mode, allowing applications to power down to conserve power. The I/O expander supports an interrupt pin that can be used to signal changes in the I/O status.

The PCF8575DWR can be configured and controlled by an I2C-bus master. It uses three serial clock (SCL) and three data (SDA) pins. It also supports two serial address pins (A0 and A1) and two select pins (A2 and A3). Once configured, the I/O expander can be operated in a start-stop mode, that is, a command from the master is taken, processed and responded to only when the master has to update the data.

The working principle of the PCF8575DWR is simple. The I2C-bus master sends a slave address and then a command to the I/O expander. The details and settings of the command are specified by the user in the I²C-bus format. Once the command is received, the I/O expander will execute the instructions set in the command and communicate the results back to the master.

The PCF8575DWR is a versatile I/O expander suitable for many different applications. It offers a variety of features such as low-power operation, wide operating voltage range, industry-standard communication interface and integrated oscillator. It also incorporates an interrupt pin for signaling changes in the I/O status. The PCF8575DWR allows for control and expansion of I/O pins and provides an inexpensive solution for expanding the I/O capability of an application.

The specific data is subject to PDF, and the above content is for reference