Linear LTCR4314带2线总线复接器的热插拔解决方案

Linear公司的 LTCR4314是4路2线总线复接器的热插拔，支持1.5V,1.8V,2.5V,3.3V 和5V总线间的电平转换，2线总线的1：4复接器/开关，和I2C，快速I2CC和SMBus兼容，主要用在通信系统和ATCA，地址扩展器，电平转移器，容性缓冲器/总线扩展器，带电板插入和PMBus。本文介绍了LTCR4314主要特性，方框图以及多种应用连接图。

The LTCR4314 is a hot-swappable 4-channel 2-wire bus multiplexer that allows one upstream bus to connect to any combination of downstream busses or channels.

An individual enable pin controls each connection. The LTC4314 provides bidirectional buffering, keeping the upstream bus capacitance isolated from the downstream bus capacitances. The high noise margin allows the LTC4314 to be interoperable with I2C devices that drive a high VOL (> 0.4V). The LTC4314 supports level translation between 1.5V, 1.8V, 2.5V, 3.3V and 5V busses. The hot-swappable nature of the LTC4314 allows I/O card insertion into, and removal from, a live backplane without corruption of the data and clock busses.
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