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PCF8575PWR

Name: PCF8575PWR
Rating: 4.7 (12 reviews)

IC I/O EXPANDER I2C 16B 24TSSOP

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製造商。部分 #PCF8575PWR
包 TSSOP24
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規格

Package	Tape & Reel (TR),Cut Tape (CT),Bulk
ProductStatus	Active
NumberofI/O	16
Interface	I²C, SMBus
InterruptOutput	Yes
Features	POR
OutputType	Push-Pull
Current-OutputSource/Sink	1mA, 25mA
ClockFrequency	400 kHz
Voltage-Supply	2.5V ~ 5.5V
OperatingTemperature	-40°C ~ 85°C
MountingType	Surface Mount
Package/Case	24-TSSOP (0.173, 4.40mm Width)

概述

Description

The PCF8575PWR is a 16-bit I/O port expander designed to interface with microcontrollers via the I2C bus. It enables the expansion of digital input/output pins, allowing for more peripheral devices to be connected without using additional GPIO pins on the microcontroller. The PCF8575 can be configured to operate in input or output mode for each of its 16 pins.
Key features include:
- I2C Interface: Communication occurs over a two-wire I2C bus, supporting multiple devices with unique addresses.
- Configurable I/O: Each pin can be set individually as an input or output.
- Interrupt Capability: It can generate interrupts on pin state changes, enhancing responsiveness.
- Power Management: The device supports low-power modes to save energy.
The PCF8575 is commonly used in applications where pin count is a limitation, such as in embedded systems, robotics, or automation projects. Its versatility and ease of use make it a popular choice among engineers and hobbyists alike.

Features

The PCF8575PWR is a 16-bit I/O port expander for I²C-bus applications. Key features include:
1. 16 GPIO Pins: Configurable as input or output, enabling flexible interfacing with various peripherals.
2. I²C Interface: Supports a two-wire I²C-bus for easy integration and communication with microcontrollers.
3. Address Configuration: Allows up to 8 devices on the same I²C bus by configuring the address pins A0, A1, and A2.
4. Interrupt Capability: Generates interrupts for input changes, enhancing responsiveness in applications.
5. Power Supply Range: Operates in a wide voltage range from 2.5V to 6V, making it suitable for various battery-powered applications.
6. Low Power Consumption: Designed for efficiency, consuming minimal power in both active and standby modes.
7. Operating Temperature: Suitable for industrial applications with a temperature range of -40°C to +85°C.
These features make the PCF8575PWR ideal for extending I/O capabilities in microcontroller projects, automation systems, and sensor interfaces.

Package

The PCF8575PWR is packaged in a TSSOP-28 (Thin Shrink Small Outline Package) format. This surface-mount package is designed for space-efficient applications, providing 28 pins for connections.

Pinout

The PCF8575PWR is a 16-bit I/O expander for I2C-bus applications. It has a total of 28 pins, which include:
1. Power Supply Pins:
- VDD (Pin 1): Power supply (2.5V to 6V)
- VSS (Pin 14): Ground
2. I2C Interface Pins:
- SDA (Pin 2): Serial Data Line
- SCL (Pin 3): Serial Clock Line
3. I/O Pins:
- P0 to P15 (Pins 4-13, 15-24): 16 GPIO pins that can be configured as inputs or outputs.
4. Address Selection Pins:
- A0, A1, A2 (Pins 25-27): Used to set the I2C address of the device.
5. Configuration Pin:
- RESET (Pin 28): Active low reset pin.
The PCF8575PWR allows for the expansion of GPIO capabilities in microcontroller applications, enabling easier control of peripherals and sensors via the I2C bus.

Manufacturer

The PCF8575PWR is manufactured by NXP Semiconductors, a global semiconductor manufacturer based in the Netherlands. NXP specializes in designing and producing a wide range of products, including microcontrollers, sensors, and automotive solutions. The company focuses on high-performance mixed-signal and digital processing technologies, catering to various industries such as automotive, industrial, and consumer electronics. NXP is known for its innovation in connectivity and secure transactions, making it a key player in the semiconductor industry.

Application

The PCF8575PWR is a 16-bit I/O port expander commonly used in applications such as microcontroller interfacing, additional GPIO expansion, LED control, sensor management, and keypad interfaces. It's particularly useful in embedded systems where I2C communication is required to increase the number of input/output pins for devices like displays, automation systems, and remote controls.

Equivalent

Equivalent products to the PCF8575PWR chip include the MCP23017, MCP23008, and PCA9555. These chips also serve as I2C I/O expanders, offering similar functionality such as GPIO expansion for microcontrollers. However, ensure to check specific features like pin count, voltage levels, and I2C addresses for compatibility with your application.