NXP I2C总线扩展P82B715 NXP I2C-bus extender P82B715 Extend the reach of any I2C-bus system without special offset voltage levels This analog bipolar IC retains all the features of the I2C-bus including interoperability with all master/slaves and bus buffers while extending the I2C-bus well beyond the limits of the standard 400-pF bus capacitance without having to use special offset voltage levels and their inherent loss in noise margin. Key features The NXP P82B715 extends the reach of the I2C-bus by 4 Dual, bidirectional, unity voltage gain buffering without buffering both the data (SDA) and the clock (SCL) lines. ……