LTC4306中文资料采用电容缓冲的 4 通道、二线式总线多路复用器数据手册ADI规格书

描述 Description

The LTC®4306 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 2.2V 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.

The LTC4306 is available in 24-lead QFN (4mm × 5mm) and SSOP packages.

Applications Nested Addressing 5V/3.3V Level Translator Capacitance Buffer/Bus Extender

特性 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

简介

LTC4306属于集成电路（IC）的专用。由制造生产的LTC4306专用该系列产品可提供所需的功能，用以将信息源/信宿连到各种复杂或范围狭窄应用中的传感器、变送器、致动器、传输介质或其他此类端点。例如，汽车安全气囊驱动器、车身控制和信息娱乐总线、自适应电缆均衡器、智能卡等等。