I2C Bi-Directional logic Level Converter- 4 Channel

This I2C Bi-Directional logic Level Converter- 4 Channel features four high-speed bi-directional 4 channels, allowing for safe and easy communication between devices operating at different logic levels. The logic level converter circuit converts signals as low as 1.8 V to as high as 5 V and vice versa, and its four channels are enough to support most common bidirectional and unidirectional digital interfaces, including I²C, SPI, and asynchronous TTL serial.

I2C Bi-Directional logic Level Converter- 4 Channel is a small device that safely steps down 5V signals to 3.3V AND steps up 3.3V to 5V at the same time. This level converter also works with 2.8V and 1.8V devices. What separates this Logic level converter from our previous versions is that you can be successful.

At its core, this converter addresses the challenge of mismatched logic voltage levels commonly encountered in mixed-voltage I2C environments. For instance, it allows communication between devices operating at 3.3V logic levels and those requiring 5V logic levels, or vice versa. Such scenarios are prevalent in embedded systems, IoT (Internet of Things) devices, and other electronics projects where components from different manufacturers or generations may have varying voltage requirements.

The converter achieves bidirectional signal translation across four channels, enabling bi-directional communication between devices with distinct logic voltage levels. This capability is particularly crucial for I2C communication, which involves both data transmission and clock synchronization between master and slave devices. By ensuring compatibility between voltage domains, the converter facilitates seamless data transfer without signal degradation or loss.

Each channel of the converter consists of a pair of voltage-level translation circuits, typically implemented using MOSFET transistors or similar semiconductor devices. These circuits effectively shift the logic voltage levels of signals passing through them, allowing data to flow bidirectionally between the low-voltage and high-voltage sides of the converter. Moreover, the converter operates transparently to the I2C protocol, requiring no additional configuration or software overhead.

One notable feature of the I2C Bi-Directional Logic Level Converter is its simplicity and ease of integration into existing I2C bus systems. The device requires minimal external components and can be connected directly between the I2C master and slave devices, typically via standard headers or solder pads. Its compact form factor and straightforward interface make it suitable for use in space-constrained environments or custom PCB (Printed Circuit Board) designs.

Additionally, the converter offers reliable signal isolation and noise immunity, essential for maintaining signal integrity in electrically noisy environments or systems with long interconnection distances. By providing a stable and robust communication link between disparate logic voltage domains, it helps mitigate common issues such as signal distortion, data corruption, or component damage due to voltage mismatch.

In summary, the I2C Bi-Directional Logic Level Converter – 4 Channel is a versatile and indispensable tool for enabling seamless communication between devices with different logic voltage requirements in I2C bus systems. Its ability to perform bidirectional voltage-level translation across multiple channels ensures compatibility and interoperability between diverse components, thereby facilitating the development of reliable and efficient electronic systems and applications. Whether used in hobbyist projects, prototyping endeavors, or commercial products, this converter serves as a fundamental building block for bridging the gap between disparate voltage domains in modern electronics.

How to use:

1. High voltage (5V for example) to the ‘HV’ pin
2. Low voltage (3.3V for example) to ‘LV’
3. Ground from the system to the ‘GND’ pin.

Specifications and Features:

1. Mutual transform between 5V TTL and 3.3V TTL
2. Four channels of logic and high voltage low voltage logic can two-way transform
3. Portable and light, with 2 rows 6 pin contact pins
4. Level Converter- 4 Channel Compatible with the bread plate, can be used directly put on the breadboard
5. 4 Channel Module (great for I2C or SPI) and will work with all microcontrollers, Arduino, Raspberry Pi, Intel Edison, NXP Mbed

Package Includes:

1 x I2C Level Converter- 4 Channel

Useful Links:

Level Converter Hookup Guide