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PCA9555PW,118

Name: PCA9555PW,118
Rating: 4.7 (12 reviews)

IC I/O EXPANDER I2C 16B 24TSSOP

Производитель
Мфр. Часть #PCA9555PW,118
Пакет 24-TSSOP
Лист данных PCA9555PW,118 DataSheet
В наличии3405

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Спецификации

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	10mA, 25mA
ClockFrequency	400 kHz
Voltage-Supply	2.3V ~ 5.5V
OperatingTemperature	-40°C ~ 85°C
MountingType	Surface Mount
Package/Case	24-TSSOP (0.173, 4.40mm Width)

Обзор

Description

The PCA9555PW is a 16-bit I²C I/O port expander from NXP Semiconductors. It allows microcontrollers to increase the number of GPIO (General Purpose Input/Output) pins by connecting additional I/O pins via the I²C bus. The device features two 8-bit ports, which can be configured as input or output, making it versatile for various applications.
Key features include:
- I²C interface with a 1.8V to 5.5V supply voltage range.
- Configurable input/output modes for each pin.
- Interrupt capabilities for input state changes.
- Integrated pull-up resistors for convenience.
The PCA9555PW is commonly used in applications where additional I/O is needed, such as LED control, sensor interfacing, or expanding connectivity in embedded systems. It simplifies hardware design by reducing the number of direct microcontroller pin connections. The device is available in a compact package, making it suitable for space-constrained designs.
For further details, refer to the official datasheet from NXP.

Features

The PCA9555PW,118 is a 16-bit I/O port expander with I²C-bus interface, enabling microcontrollers to control multiple digital inputs and outputs. Key features include:
1. 16 I/O Ports: Configurable as inputs or outputs.
2. I²C Interface: Supports standard, fast, and high-speed modes.
3. Interrupt Functionality: Alerts the host microcontroller on input changes.
4. Configurable Pull-up Resistors: For input ports to ensure proper logic levels.
5. Addressing: Supports up to 8 devices on the same I²C bus via address pins.
6. Power Supply Voltage: Operates typically between 2.3V to 5.5V.
7. Low Power Consumption: Enables battery-operated designs.
8. Multiple Modes: Supports both input and output modes, allowing versatile applications.
9. Thermal Shutdown: Protects against overheating.
10. Package Type: Available in TSSOP and other configurations for easy integration.
This device is commonly used in applications requiring additional digital I/O, such as LED control and sensor interfacing in embedded systems.

Package

The PCA9555PW,118 is packaged in a TSSOP (Thin Shrink Small Outline Package) with 20 pins. This compact package type is suitable for surface mounting in electronic applications.

Pinout

The PCA9555PW,118 is a 16-bit I/O port expander with an I2C interface, featuring a pin count of 28.
Functions:
- I/O Ports: It has 16 GPIO pins that can be configured as inputs or outputs.
- I2C Interface: Communicates with microcontrollers over the I2C bus, supporting multiple devices on the same bus.
- Interrupt Functionality: Provides interrupt outputs for input changes, allowing efficient monitoring of the GPIO states without constant polling.
- Configuration Registers: The device includes registers for setting pin directions (input or output), and for managing pull-up resistors on input pins.
- Multiple Device Support: Up to eight PCA9555 devices can be connected to the same I2C bus, allowing for scalable I/O expansion.
Overall, the PCA9555PW,118 is useful for applications requiring additional digital Inputs/Outputs while minimizing microcontroller pin usage.

Manufacturer

The PCA9555PW,118 is manufactured by NXP Semiconductors. NXP is a global semiconductor company that specializes in designing and manufacturing a wide range of integrated circuits and solutions for various applications, including automotive, industrial, and consumer electronics. The company is known for its expertise in mixed-signal and digital signal processing technologies, offering products such as microcontrollers, RF solutions, and sensors. NXP's focus on innovation and quality positions it as a key player in the semiconductor industry, serving customers worldwide.

Application

The PCA9555PW,118 is a 16-bit I/O port expander with I2C interface, commonly used in various applications such as:
1. Consumer Electronics: Remote controls, home automation systems.
2. Industrial Automation: Sensor and actuator interfacing in machinery.
3. Embedded Systems: Expanding GPIO for microcontrollers.
4. Automotive: Input/output control for dashboards and lighting.
5. Telecommunications: Handling multiple signal lines in devices.
Its versatility makes it suitable for interfacing and controlling multiple devices with minimal pin usage.

Equivalent

The PCA9555PW,118 is a 16-bit I/O port expander with I2C interface. Equivalent products include the PCF8575, MCP23017, and TCA9555. These chips also provide I/O expansion via I2C but may differ in features like the number of I/O pins, voltage levels, and additional functionalities. Always check the specific datasheets for compatibility in your application.

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