Hot Swap and buffer I2C buses
John Ziegler
Abstract
The LTC4300-1, which allows users to plug an I/O card into a live backplane without corrupting the backplane SDA and SCL signals in 2-wire bus systems, is described.
Keywords
Hot Swap
I/O card
LTC4300-1
As server systems have grown, the number and complexity of input/output (I/O) cards that contain control circuitry to monitor the servers have grown in proportion. Zero down time systems require users to insert I/O cards into a live backplane. While many IC vendors have developed chips to safely Hot Swap the power supply and ground lines, until now no one has developed a monolithic solution to “hot swap” the system data (SDA) and clock (SCL) lines in I2C and SMBus systems. ...
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