TCA9511A - Texas Instruments

TCA9511A Hot Swappable I2C Bus and SMBus Buffer

The TCA9511A 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 t.

Features

• Supports bidirectional data transfer of I2C bus signals
• Operating power-supply voltage range of 2.3 V to 5.5 V
• TA ambient air temperature range of -40 °C to 125 °C
• 1-V Precharge on all SDA and SCL lines prevents corruption during live insertion
• Accommodates standard mode and fast mode I2C devices
• Supports clock stretching, arbitration and synchronization
• Powered-off high-impedance I2C pins 2 Applications
• Servers
• Enterprise Switching
• Telecom switching equipment
• Base stations
• Industrial automation equipment 3 Description The TCA9511A is a hot-swappable I2C bus buffer th.