The PCA9517A is an I2C bus repeater that provides level shifting between low voltage (down to 0.9 V) and higher voltage (2.7 V to 5.5 V) for I2C bus or SMBus applications.
Features
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2 Channel, Bidirectional Buffer Isolates Capacitance and Allows
400 pF on Either Side of the Device
Voltage Level Translation from 0.9 V to 5.5 V and from 2.7 V to
5.5 V
Footprint and Functional Replacement for PCA9515/15A
I2C bus and SMBus Compatible
Active HIGH Repeater Enable
OpenDrain Inputs/Outputs
Lockup Free Operation
Supports Arbitration and Clock Stretching Across the Repeater, and
Multiple Masters
I2C and SMBus SCL Clock Frequency up to 1 MHz (The maximum
system operating frequency may be less than 1 MHz because of the
delays added by the repeater.)
Powered Off HighImpedance I2C bus Pins
A Side Operating Supply Voltage Range of 0.9 V to 5.5 V
B side Operating Supply Voltage Range of 2.7 V to 5.5 V
