TCA9617B - Texas Instruments

TCA9617B Level-Translating FM+ I2C Bus Repeater

The TCA9617B is a BiCMOS dual bidirectional buffer intended for I2C bus and SMBus systems. The device provides bidirectional voltage-level translation (up-translation and down-translation) between low voltages (down to 0.8V) and higher voltages (2.2V to 5.5V) in mixed-mode applications. This device enables I2C and similar bus systems to be extended, without.

Features

• Two-channel bidirectional I2C buffer
• Support for standard mode, fast mode (400kHz), and fast mode+ (1MHz) I2C operation
• Operating supply voltage range of 0.8V to 5.5V on A-side
• Operating supply voltage range of 2.2V to 5.5V on B-side
• Voltage-level translation from 0.8V to 5.5V and 2.2V to 5.5V
• Footprint and function replacement for TCA9517
• Active-high repeater-enable input
• Open-drain I2C I/O
• 5.5V Tolerant I2C and enable input support
• Lockup-free operation
• Powered-off high-impedance I2C bus pins
• Support for clock stretching and multiple controller arbitration across the .