TCA9555RGER

Product Overview

Category

TCA9555RGER belongs to the category of integrated circuits (ICs).

Use

This product is commonly used for input/output (I/O) expansion in various electronic devices.

Characteristics

• TCA9555RGER is a 16-bit I/O expander with an I2C interface.
• It provides general-purpose remote I/O expansion for most microcontroller families.
• The device supports both 3.3V and 5V supply voltages.
• It offers high-speed I2C bus communication, allowing for efficient data transfer.
• TCA9555RGER has low standby current consumption, making it suitable for battery-powered applications.

Package

The TCA9555RGER is available in a small-sized VQFN package.

Essence

The essence of TCA9555RGER lies in its ability to expand the number of I/O pins available for use in electronic systems.

Packaging/Quantity

This product is typically sold in reels or tubes, containing a specific quantity of TCA9555RGER ICs per package.

Specifications

• Number of I/O Pins: 16
• Supply Voltage Range: 1.65V to 5.5V
• I2C Bus Frequency: Up to 400 kHz
• Standby Current: 1 µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The TCA9555RGER has a total of 24 pins, each serving a specific function. The pin configuration is as follows:

1. SDA (Serial Data Input/Output)
2. SCL (Serial Clock Input)
3. A0 (Address Select Bit 0)
4. A1 (Address Select Bit 1)
5. A2 (Address Select Bit 2) 6-21. I/O0-I/O15 (General Purpose I/O Pins)
6. GND (Ground)
7. VCC (Supply Voltage)
8. RESET (Reset Input)

Functional Features

• Bidirectional I/O Ports: Each of the 16 I/O pins can be individually configured as either an input or an output.
• Interrupt Output: The device can generate an interrupt signal to the microcontroller when a change in input state is detected.
• Programmable Polarity Inversion: Allows for inversion of the polarity of the input pins.
• Power-On Reset: The device ensures that all I/O pins are in a known state after power-up.

Advantages and Disadvantages

Advantages

• Provides additional I/O pins, expanding the capabilities of microcontrollers with limited I/O resources.
• Supports both 3.3V and 5V supply voltages, making it compatible with a wide range of systems.
• Low standby current consumption enables energy-efficient operation.
• High-speed I2C bus communication allows for efficient data transfer.

Disadvantages

• Limited number of I/O pins (16), which may not be sufficient for applications requiring a large number of I/Os.
• Requires an I2C interface, which may add complexity to the system design.

Working Principles

TCA9555RGER operates by communicating with a microcontroller through the I2C bus. The microcontroller sends commands to the IC, configuring each I/O pin as either an input or an output. The IC monitors the input pins for changes in state and provides the corresponding output on the output pins. It also generates an interrupt signal to the microcontroller when necessary.

Detailed Application Field Plans

TCA9555RGER finds application in various fields, including but not limited to: - Industrial automation - Consumer electronics - Automotive systems - Internet of Things (IoT) devices - Robotics

Detailed and Complete Alternative Models

Some alternative models to TCA9555RGER that offer similar functionality include: - MCP23017 - PCF8574 - MAX7313

These alternatives can be considered based on specific requirements and compatibility with the target system.

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