PCF8575CTS/1

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PCF8575CTS/1

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Spezifikationen

Brand NXP Semiconductors
Product Type Real Time Clocks
Subcategory Clock & Timer ICs

Übersicht

Description

The PCF8575CTS/1 is a 16-bit I/O port expander that communicates via the I2C bus. It allows microcontrollers to increase their number of input/output pins without needing additional GPIOs. This device can be particularly useful in applications where multiple sensors or actuators are required but the microcontroller has a limited number of pins.
The PCF8575 supports two I2C addresses, allowing up to eight devices to be connected on the same bus. It features interrupt capabilities, which can signal the microcontroller when input states change, minimizing the need for constant polling.
Each of the 16 pins can be individually configured as input or output, making it versatile for various applications in robotics, consumer electronics, and automation. Additionally, it operates over a wide voltage range (2.5V to 6V), making it suitable for many systems.
The device's small footprint and ease of integration make it a popular choice for expanding I/O capabilities in compact designs.

Features

The PCF8575CTS/1 is a 16-bit I/O expander designed for I2C-bus applications. Key features include:
1. 16 GPIO Pins: It provides 16 general-purpose input/output pins that can be configured for input or output.
2. I2C Interface: Operates on a standard I2C bus, allowing multiple devices to be connected with just two wires (SDA and SCL).
3. Addressability: Supports up to 8 devices on the same bus by allowing configurable I2C addresses.
4. Interrupt Capability: It features an interrupt output for efficient monitoring of input changes without constant polling.
5. Power Supply Range: Operates with a supply voltage from 2.5V to 6V, making it suitable for various applications.
6. Low Power Consumption: Designed for low power usage, ideal for battery-operated devices.
7. Wide Operating Temperature Range: Suitable for industrial applications with a temperature range from -40°C to +85°C.
Overall, the PCF8575CTS/1 is versatile for extending I/O capabilities in embedded systems.

Package

The PCF8575CTS/1 is packaged in a 16-pin TSSOP (Thin Shrink Small Outline Package). This surface-mount package is designed for compact applications and efficient PCB space utilization.

Pinout

The PCF8575CTS/1 is a 16-bit I/O port expander that connects to a microcontroller via the I2C bus. It features a total of 20 pins.
Pin Count and Function:
1. VDD (Pin 1): Power supply (typically +2.5V to +6V).
2. VSS (Pin 20): Ground connection.
3. SDA (Pin 2): Serial data line for I2C communication.
4. SCL (Pin 3): Serial clock line for I2C communication.
5. A0, A1, A2 (Pins 4-6): Address pins used to set the I2C address (up to 8 devices can be connected).
6. P0-P15 (Pins 7-19): 16 GPIO (General Purpose Input/Output) pins, configurable as inputs or outputs.
The PCF8575 allows for the expansion of GPIO capabilities in microcontroller projects, enabling additional sensors, buttons, and other peripherals to be managed efficiently through I2C.

Manufacturer

The PCF8575CTS/1 is manufactured by NXP Semiconductors. NXP is a global semiconductor company that specializes in the design and manufacture of a wide range of integrated circuits and solutions for various applications, including automotive, industrial, and consumer electronics. The company emerged from the spin-off of Philips Semiconductors in 2006 and has since become a key player in the semiconductor industry, focusing on areas such as secure connectivity, processing, and sensing technologies. NXP is known for its innovation in mixed-signal and digital semiconductor solutions, with a strong emphasis on automotive and IoT markets.

Application

The PCF8575CTS/1 is a 16-bit I/O port expander using I²C interface, commonly used in applications such as microcontroller I/O extension, LED control, sensor interfacing, communication with peripherals, and automation systems. Its ability to control multiple devices and expand input/output capabilities makes it ideal for robotics, home automation, industrial control systems, and consumer electronics.

Equivalent

The PCF8575CTS/1 is an I2C I/O expander. Equivalent products include the MCP23017, MCP23008, and TCA9555, which also provide I2C interface and GPIO expansion. The PCA9535 and PCA9555 can serve similar functions but have different pin configurations and features. Always check datasheets for specific compatibility and pin configurations.

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