PCA9555RGER

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PCA9555RGER

IC I/O EXPANDER I2C 16B 24VQFN

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Spezifikationen

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-VFQFN Exposed Pad

Übersicht

Description

The PCA9555RGER is an I²C-bus I/O port expander designed by NXP Semiconductors. It features 16 GPIO pins that can be configured as inputs or outputs, allowing for the expansion of microcontroller I/O capabilities. The device communicates via the I²C interface, making it suitable for applications requiring multiple digital input/output lines.
Key features include an internal pull-up resistor for inputs, interrupt capability for detecting changes in input states, and the ability to configure pin states dynamically. The PCA9555RGER operates from a supply voltage of 1.8V to 5.5V, making it versatile for various electronic designs. Its small footprint in a TSSOP package facilitates integration into space-constrained applications.
The device is commonly used in consumer electronics, automotive systems, industrial automation, and other fields that require efficient I/O expansion. Overall, the PCA9555RGER is a reliable solution for enhancing the I/O capabilities of microcontrollers and simplifying circuit designs.

Features

The PCA9555RGER is a dual I2C-bus I/O port expander with the following key features:
1. Dual Ports: It provides 16 GPIO pins, divided into two 8-bit ports (Port 0 and Port 1).
2. I2C Interface: Operates on a standard I2C interface, allowing multiple devices to be connected on the same bus.
3. Addressing: Supports up to eight devices on the same I2C bus by configuring the address pins.
4. Configurable I/O: Each GPIO pin can be configured as an input or output, allowing flexibility in design.
5. Interrupts: Features interrupt outputs for detecting changes on the input pins, enabling efficient monitoring.
6. Power Supply: Operates within a voltage range of 2.3V to 5.5V, suitable for various applications.
7. Package Type: Available in a TSSOP-20 package, optimizing space in compact designs.
These features make the PCA9555RGER ideal for applications requiring additional GPIOs in microcontroller-based systems.

Package

The PCA9555RGER is typically available in a TSSOP (Thin Shrink Small Outline Package) with a 16-pin configuration.

Pinout

The PCA9555RGER is a 16-pin I²C I/O port expander. It provides additional GPIO (General Purpose Input/Output) capabilities to microcontrollers. The pin configuration includes:
1. 1 (VCC): Power supply.
2. 2 (GND): Ground.
3. 3 (SDA): Serial data line for I²C communication.
4. 4 (SCL): Serial clock line for I²C communication.
5. 5-12 (P0.0 - P0.7): Port 0 I/O pins (can be configured as input or output).
6. 13-14 (P1.0 - P1.7): Port 1 I/O pins (also configurable).
7. 15 (INT): Interrupt output to alert the host of changes in input states.
8. 16 (RESET): Reset input pin to reinitialize the device.
This device allows up to 16 additional I/O pins to be controlled via the I²C interface, making it suitable for applications that require more input or output lines than are available on the main microcontroller.

Manufacturer

The PCA9555RGER is manufactured by NXP Semiconductors, a global semiconductor company headquartered in Eindhoven, Netherlands. NXP specializes in designing and manufacturing a wide range of integrated circuits, including microcontrollers, processors, and interface devices. The company focuses on various applications such as automotive, industrial, IoT, and mobile sectors, providing solutions that enable secure connectivity and efficient processing. NXP is known for its innovation in semiconductor technology and plays a significant role in the development of smart devices and systems.

Application

The PCA9555RGER is a GPIO expander with I2C interface, commonly used in applications such as LED control, switch matrix interfacing, sensor integration, and communication with various peripherals in embedded systems. It's ideal for projects requiring additional input/output pins, like in consumer electronics, industrial automation, and robotics.

Equivalent

Equivalent products to the PCA9555RGER include the TCA9555, MCP23017, and PCF8575. These chips serve similar functions for I2C I/O expansion, offering multiple GPIO pins for interfacing with microcontrollers. However, always verify pin configurations and specific features to ensure compatibility for your application.

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