The TCA9617A is a BiCMOS dual bidirectional buffer intended for
I2C bus and SMBus systems. It can provide bidirectional voltage-level
translation (up-translation and down-translation) between low voltages (down to 0.8 V) and higher
voltages (2.2 V to 5.5 V) in mixed-mode applications. This device enables
I2C and similar bus systems to be extended, without degradation of
performance even during level shifting.
The TCA9617A buffers both the serial data (SDA) and the serial clock (SCL) signals on the
I2C bus, allowing two buses of 550-pF or greater bus capacitance to be
connected in an I2C application. This device can also be used to isolate
two halves of a bus for voltage and capacitance.
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