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LTC4306

采用电容缓冲的 4 通道、二线式总线多路复用器

LTC4306产品信息:

概览

优势和特点

  • 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

产品详情

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.


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

LTC4306数据手册:

LTC4306引脚功能、电路图:

LTC4306

【用 途】 线总线多路复用器【性能 参数】  采用24引线SSOP和4mmx5mmQFN封装,2.2V至5.5V的电源电压,两个集成电路的SDA和SCL引脚都具有实现坚固性的±10kVESD保护。当启动时,上升时间加速器电路将向两线总线引脚提供电流以缩短上升时间。每个集成电路都容许使用27个不同的总线地址,

凌特公司推出两线总线多路复用器LTC4305和LTC4306

凌特公司(linear technology corporation)推出两线总线多路复用器 ltc4305 和 ltc4306,这两款器件在上行 i2c 总线连接到所需的下行总线组合时提供了容性隔离。软件控制的 ltc4305 多路复用两个通道,而 ltc4306 将 i2c 总线分裂成四个子分支。i2c 多路复用容许多个系统管理总线和多个 i2c 器件可靠切换。多路复用还允许地址扩展以及对多个

凌特推出两线总线多路复用器 提供容性缓冲

凌特公司(LinearTechnologyCorporation)推出两线总线多路复用器LTC4305和LTC4306,这两款器件在上行I2C总线连接到所需的下行总线组合时提供了容性隔离。软件控制的LTC4305多路复用两个通道,而LTC4306将I2C总线分裂成四个子分支。I2C多路复用容许多个系统管理总线和多个I2C器件可靠切换。

可容性缓冲 双通道和四通道I2C多路复用器

凌特公司日前推出两线总线多路复用器LTC4305和LTC4306,这两款器件在上行I2C总线连接到所需的下行总线组合时提供了容性隔离。软件控制的LTC4305多路复用两个通道,而LTC4306将I2C总线分裂成四个子分支。I2C多路复用容许多个系统管理总线和多个I2C器件可靠切换。

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