4-Channel, 2-Wire Bus Multiplexer with Capacitance Buffering Features: 1:4 2-Wire Multiplexer/Switch Connect SDA and SCL Lines with 2-Wire Bus Commands Supply Independent Bidirectional Buffer for SDA and SCL Lines Increases Fan-Out Programmable Disconnect from Stuck Bus Compatible with I2C and SMBus Standards Rise Time Accelerator Circuitry SMBus Compatible ALERT Response Protocol Two General Purpose Inputs-Outputs Prevents SDA and SCL Corruption During Live Board Insertion and Removal from Backplane ±10kV Human Body Model ESD Ruggedness 24-Lead QFN (4mm × 5mm) and SSOP Packages