TCA4307DGKR Texas Instruments - Yeehing Electronics

2-bit bidirectional 2.3- to 5.5-V hot swappable 400-kHz I2C/SMBus buffer with Stuck Bus Recovery

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Specifications

For more information, please refer to datasheet

Documents

More Information

The TCA4307 is a hot-swappable I2C bus buffer that supports I/O card insertion into a live backplane without corruption of the data and clock lines. Control circuitry prevents the backplane-side I2C lines (in) from being connected to the card-side I2C lines (out) until a stop command or bus idle condition 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 device.