LTC4306IGN#PBF

LTC4306 is a 4-channel, 2-wire bus multiplexer with bus buffers to provide capacitive isolation between the upstream bus and downstream buses. Through software control, this device connects the upstream 2-wire bus to any desired combination of downstream buses. The downstream channels are also provided with ALERT1-ALERT4 inputs for fault reporting. Programmable timeout circuitry disconnects the downstream buses if the bus is stuck low. When activated, rise time accelerators source currents into the 2-wire bus pins to reduce rise time. Driving the ENABLE pin low restores all features to their default states. Three address pins provide 27 distinct addresses. It is widely used in application such as nested addressing, 5V/3.3V level translator, capacitance buffer/bus extender etc.

• 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
• ±10KV human body model ESD ruggedness
• Input supply range is 2.7V to 5.5V
• Input supply current is 5.2mA typical
• Operating temperature is -40°C to 85°C, package style is 24-lead plastic SSOP

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party