TCA9801DGKR

The TCA9801DGKR is a dual I²C bus buffer and isolator designed to enhance communication in mixed-voltage systems. It facilitates the connection of devices operating at different supply voltages, ensuring reliable data transmission without interference. The device features a high-speed I²C interface, allowing for data rates up to 1 Mbps.
The TCA9801 operates with a supply voltage range of 1.8V to 5.5V, making it versatile for various applications. It supports standard, fast, and high-speed I²C modes, providing compatibility with a broad array of I²C devices. The integrated buffers help isolate the master and slave devices, improving signal integrity and reducing the risk of bus contention.
Key specifications include low propagation delay, high noise immunity, and low power consumption. The TCA9801 is commonly used in applications like sensor networks, industrial control systems, and consumer electronics where I²C communication is essential across different voltage domains.
The device is available in a compact package (VQFN) for ease of integration into designs.

The TCA9801DGKR is a bidirectional I2C bus buffer designed to enhance communication between devices in I2C applications. Key features include:
1. Bidirectional Operation: It supports I2C communication in both directions, facilitating seamless data transfer between devices.
2. Voltage Level Shifting: The device can translate signals between different voltage levels, making it suitable for interfacing components operating at different supply voltages (1.8V to 5V).
3. High-Speed Data Transfer: It supports standard I2C speeds up to 1 MHz, ensuring optimal performance in fast applications.
4. Low Power Consumption: The TCA9801DGKR is designed to minimize power usage, making it suitable for battery-operated devices.
5. Wide Temperature Range: It operates effectively across a broad temperature range, ensuring reliability in varied environments.
6. Small Package Size: Packaged in a DGK (VQFN) format, it offers a compact solution for space-constrained designs.
These features make the TCA9801DGKR an excellent choice for I2C system integration, enabling robust and flexible communication among devices.

The TCA9801DGKR is packaged in a VQFN (Very Thin Quad Flat No-lead) format, specifically a 16-pin VQFN package. This package type provides a compact design suitable for applications requiring space efficiency and good thermal performance.

The TCA9801DGKR is an I2C bus-level translator with a pin count of 8. It is designed to interface between two different voltage I2C buses, allowing communication between devices operating at different logic levels.
Pin Functions:
1. VREF1 (Pin 1): Reference voltage for the high side (e.g., 3.3V).
2. VREF2 (Pin 2): Reference voltage for the low side (e.g., 1.8V).
3. A1 (Pin 3): I2C data line for the high side (A).
4. A2 (Pin 4): I2C clock line for the high side (A).
5. B1 (Pin 5): I2C data line for the low side (B).
6. B2 (Pin 6): I2C clock line for the low side (B).
7. GND (Pin 7): Ground connection.
8. NC (Pin 8): No connection.
This device is useful for level shifting in mixed-voltage environments, ensuring reliable data communication between different I2C compliant devices.

The TCA9801DGKR is manufactured by Texas Instruments (TI), a prominent semiconductor company based in the United States. Texas Instruments specializes in designing and producing a wide range of analog and digital semiconductor solutions. Their products are widely used in various applications, including automotive, industrial, communications, and consumer electronics. TI is known for its innovative technologies, strong commitment to research and development, and extensive portfolio of integrated circuits and microcontrollers.

The TCA9801DGKR is a bidirectional I2C bus buffer used in various application areas, including industrial automation, automotive electronics, consumer electronics, and communication systems. It helps improve signal quality over long distances, isolate I2C devices on different voltage levels, and enable multi-master configurations. It is particularly beneficial in systems requiring robust data transmission in noisy environments.

The TCA9801DGKR is a dual I2C bus buffer. Equivalent products include the TCA9517, PCA9515, and P82B715. These alternatives also function as I2C bus extenders or buffers, providing similar signal conditioning and voltage level translation capabilities. Always verify specific features and specifications for compatibility.