LTC4306CGN#PBF

LINEAR TECHNOLOGY  LTC4306CGN#PBF  专用接口, I2C, SMBus, 嵌套寻址, 电平转换器, 电容缓冲器和总线扩展器, 2.7 V, 5.5 V, SSOP, 24 引脚

The 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, the LTC4306 connects the upstream 2-wire bus to any desired combination of downstream buses. Each channel can be pulled up to a supply voltage ranging from 2.2 to 5.5V, independent of the LTC4306 supply voltage. 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.

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Connect SDA and SCL lines with 2-wire bus commands

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Supply independent bidirectional buffer for SDA and SCL lines increases fan-out

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Programmable disconnect from stuck bus

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Rise time accelerator circuitry

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SMBus compatible ALERT response protocol

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Two general purpose inputs-outputs

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Prevents SDA and SCL corruption during live board insertion and removal from backplane