PCA9534RGVR

The PCA9534RGVR is an 8-bit I2C-bus and SMBus I/O expander IC with interrupt output and configuration registers. It provides an easy and efficient way to increase the I/O capability of a microcontroller by allowing communication over the I2C interface.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

• GND: Ground connection
• VDD: Positive power supply
• SCL: I2C serial clock input
• SDA: I2C serial data input/output
• P0 - P7: I/O Ports
• INT: Interrupt output

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the PCA9534RGVR IC for a visual representation.

Key Features

• 8-Bit I/O Expander: Provides additional I/O pins through the I2C interface.
• I2C Interface: Allows communication with microcontrollers using the I2C-bus protocol.
• Interrupt Output: Features interrupt functionality for efficient I/O handling.
• Configuration Registers: Includes registers for setting various options and configurations.
• Low Standby Current: Operates with low power consumption in standby mode.

Note: For detailed technical specifications, please refer to the PCA9534RGVR datasheet.

Application

• GPIO Expansion: Ideal for expanding the GPIO capabilities of microcontrollers and embedded systems.
• LED Control: Can be used to control LEDs or other digital outputs via the I2C interface.
• Button Interface: Suitable for interfacing with external push buttons or sensors.

Functionality

The PCA9534RGVR serves as an I/O expander, enabling communication with microcontrollers through the I2C interface. It allows for increased flexibility in controlling and monitoring digital signals.

Usage Guide

• Power Supply: Connect VDD (Pin) to the positive power supply voltage.
• I2C Communication: Connect SCL and SDA pins to the microcontroller for I2C communication.
• Configuration: Set the device address using the address selection pins (A0 - A2) as needed.

Frequently Asked Questions

Q: Is the PCA9534RGVR compatible with 5V microcontrollers?
A: Yes, the PCA9534RGVR is compatible with both 3.3V and 5V microcontrollers, thanks to its support for the I2C interface.

Q: Can the PCA9534RGVR be used for PWM output?
A: The PCA9534RGVR is primarily designed for digital I/O expansion and control, not specifically for PWM output. For PWM functionality, consider dedicated PWM controllers.