2-channel I2C-bus multiplexer

The PCA9540B is a 1-of-2 bidirectional translating multiplexer, controlled via the I²C-bus.The SCL/SDA upstream pair fans out to two SCx/SDx downstream pairs, or channels.Only one SCx/SDx channel is selected at a time, determined by the contents of theprogrammable control register.\nA power-on reset 1-of-2 bidirectional translating multiplexer\nI²C-bus interface logic; compatible with SMBus standards\nChannel selection via I²C-bus\nPower-up with all multiplexer channels deselected\nLow Ron switches\nAllows voltage level translation between 1.8 V, 2.5 V, 3.3 V and 5 V buses\nNo glitch on power-u;

恩XP

2-channel I2C-bus multiplexer

The PCA9540B is a 1-of-2 bidirectional translating multiplexer, controlled via the I²C-bus.The SCL/SDA upstream pair fans out to two SCx/SDx downstream pairs, or channels.Only one SCx/SDx channel is selected at a time, determined by the contents of theprogrammable control register.\nA power-on reset 1-of-2 bidirectional translating multiplexer\nI²C-bus interface logic; compatible with SMBus standards\nChannel selection via I²C-bus\nPower-up with all multiplexer channels deselected\nLow Ron switches\nAllows voltage level translation between 1.8 V, 2.5 V, 3.3 V and 5 V buses\nNo glitch on power-u;

恩XP