This chip allow easy conversion between logic levels allowing easy interfacing of Modules or other integrated circuits to a microcontroller or Arduino system.

• 1.2 V to 3.6 V on A Port and 1.65 to 5.5 V on B Port
• Output Enable Function Using OE pin
• VCCA connects to lower logic level eg 3.3V
• VCCB connects to higher logic level eg 5V
• When Ax has TTL 3.3V input, Bx will get TTL 5V output
• When Bx has TTL 5V input, Ax will get TTL 3.3V output
• NO direction control required

Example applications are Arduino to GSM connections, 3.3V SPI/I2C module connection to 5V system, UART interfacing between systems operating at different voltages