PCA9515BDGKR

The PCA9515BDGKR is an I2C bus buffer IC designed to provide a level-shifting and buffering function for I2C bus systems. This IC allows bidirectional voltage-level translation between different I2C voltage domains, enabling seamless communication between devices with different voltage requirements.

Pinout

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

• GND: Ground connection
• VL: Low-level reference voltage
• VA: Side A I2C logic supply voltage
• VCC: Device supply voltage
• VB: Side B I2C logic supply voltage
• SCL1, SDA1: Side A I2C bus connections
• SCL2, SDA2: Side B I2C bus connections
• EN: Enable pin

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the PCA9515BDGKR IC for a visual representation.

Key Features

• I2C voltage-level translation: Enables communication between devices operating at different voltage levels on the I2C bus.
• Bi-directional buffer: Provides bidirectional buffering for the I2C signals, maintaining signal integrity across the translation.
• Fast-mode and standard-mode support: Supports I2C fast-mode (400kHz) and standard-mode (100kHz) communication.
• Low standby current: Features low standby current consumption, suitable for power-sensitive applications.
• Small form factor: Available in a compact and space-saving MSOP-10 package.

Note: For detailed technical specifications, please refer to the PCA9515BDGKR datasheet.

Application

• I2C Bus Systems: Ideal for use in I2C bus systems where voltage-level translation is required.
• Mixed-Platform Communication: Suitable for facilitating communication between devices operating at different voltage levels or logic standards.
• Embedded Systems: Used in embedded systems, IoT devices, and sensor networks requiring I2C communication.

Functionality

The PCA9515BDGKR facilitates communication between devices with different I2C voltage levels, ensuring seamless data transfer in mixed-voltage applications.

Usage Guide

• Supply Voltages: Connect VA (Pin 3) and VB (Pin 5) to the respective I2C logic supply voltages on each side of the bus.
• Enable Pin: Use the EN (Pin 8) pin to control the enabling or disabling of the level translation function.
• Connection Setup: Connect the SCL and SDA lines of the two I2C buses to the corresponding pins on each side of the PCA9515BDGKR.

Frequently Asked Questions

Q: Can the PCA9515BDGKR support high-speed I2C communication?
A: Yes, the PCA9515BDGKR supports fast-mode I2C communication up to 400kHz.

Q: Is the PCA9515BDGKR compatible with devices operating at 3.3V and 5V logic levels?
A: Yes, the PCA9515BDGKR is designed to translate I2C voltage levels between different supply voltages, including 3.3V and 5V logic levels.