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Documents TCA4311A
SCPS226B – JANUARY 2011 – REVISED OCTOBER 2014 TCA4311A Hot Swappable 2-Wire Bus Buffers
1 Features 3 Description The TCA4311A is a hot-swappable I2C bus buffer
that supports I/O card insertion into a live backplane
without corruption of the data and clock busses.
Control circuitry prevents the backplane from being
connected to the card until a stop command or bus
idle occurs on the backplane without bus contention
on the card. When the connection is made, this
device provides bidirectional buffering, keeping the
backplane and card capacitances isolated. During
insertion, the SDA and SCL lines are pre-charged to
1 V to minimize the current required to charge the
parasitic capacitance of the chip. 1 Operating Power-Supply Voltage Range of 2.7 V
to 5.5 V
Supports Bidirectional Data Transfer of I2C Bus
Signals
SDA and SCL Lines are Buffered Which Increases …
