Texas Instruments

TCA9555RTWR  

I/O Expanders

The TCA9555RTWR is a low-power, 16-bit I/O port expander from Texas Instruments. It is designed to interface with microcontrollers and other systems that require additional GPIO (General Purpose Input/Output) pins. The device is available in a small, 16-pin wide body SOIC (SOIC-16W) package, making it suitable for space-constrained applications.

Description:

The TCA9555RTWR is a member of the TCA9555 family of I/O expanders. It features 16 GPIO pins that can be configured as inputs or outputs, with individual direction control for each pin. The device also includes a hardware reset feature and an interrupt output that can be used to signal the host system when a specific condition is met.

Features:

1. 16 GPIO pins with individual direction control (8 inputs and 8 outputs by default, but can be configured as needed)
2. I2C compatible interface for easy communication with a host microcontroller
3. Wide operating voltage range (2.5V to 5.5V)
4. Low-power operation (typical standby current of 2.5µA and active current of 1.5mA)
5. Hardware reset feature
6. Interrupt output for signaling specific conditions
7. Small 16-pin wide body SOIC package

Applications:

The TCA9555RTWR can be used in a variety of applications where additional GPIO pins are required. Some examples include:

1. Home automation systems: Control and monitor various devices and sensors in a smart home setup.
2. Industrial control systems: Interface with sensors and actuators in industrial environments.
3. Robotics: Provide additional I/O for controlling motors, sensors, and other components in robotic systems.
4. Wearable devices: Expand the functionality of wearable electronics by adding more input and output options.
5. IoT devices: Integrate with Internet of Things (IoT) devices to enable remote monitoring and control of connected devices.
6. Medical equipment: Interface with sensors and actuators in medical devices for improved functionality and user interaction.

The TCA9555RTWR's flexible pin configuration, low-power operation, and small form factor make it a versatile choice for a wide range of applications requiring additional GPIO functionality.

TCA9555RTWR Documents

Download datasheets and manufacturer documentation for TCA9555RTWR

Images :

Mechanical Outline Drawing      

PCN :

Product Change Notification (PDF)      

Models :

TCA9555RTWR Symbol & Footprint by SnapMagic      

Product Catalogs :

I2C Guide (Rev. E)