ONNLA9306USG
Overview
The NLA9306USG is a bidirectional dual-channel voltage level translator designed for mixed-mode I2C-bus and SMBus applications. It enables seamless communication between devices operating on different voltage rails, supporting translation from 1.0 V up to 5.5 V without the need for a direction control pin. Its open-drain architecture and 5 V tolerant I/O make it ideal for interfacing modern low-voltage microcontrollers with legacy sensors and peripherals.
Why Choose This Part
The device features an exceptionally low propagation delay of less than 1.5 ns, ensuring signal integrity at Fast-Mode Plus (1 MHz) I2C speeds. Its low 3.5 ohm ON-state resistance minimizes signal distortion, while the enable (EN) pin allows for high-impedance isolation of the bus segments during power-down or standby modes.
Applications
Key Specifications
Getting Started
To use the NLA9306USG, connect the lower voltage rail to Vref1 and the higher voltage rail to Vref2 through a 200k ohm resistor, ensuring Vref2 is at least 0.6 V higher than Vref1. External pull-up resistors are required on all four I/O pins (SCL1/SDA1 and SCL2/SDA2) because the device is a passive switch-based translator. For prototyping, the US8 package can be mounted on a standard 0.5mm pitch SMT-to-DIP breakout board.
