This dual bidirectional I2C buffer is operational at 2.7 V to 5.5 V.
The PCA9517 is a BiCMOS integrated circuit intended for I2C bus and SMBus systems. It can also provide bidirectional voltage-level translation (up-translation/down-translation) between low voltages (down to 0.9 V) and higher voltages (2.7 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.
FEATURES
• Two-Channel Bidirectional Buffer
• I2C Bus and SMBus Compatible
• Operating Supply Voltage Range of 0.9 V to 5.5 V on A Side
• Operating Supply Voltage Range of 2.7 V to 5.5 V on B Side
• Voltage-Level Translation From 0.9 V to 5.5 V and 2.7 V to 5.5 V
• Footprint and Function Replacement for PCA9515A
• Active-High Repeater-Enable Input
• Open-Drain I2C I/O
• 5.5-V Tolerant I2C and Enable Input Support Mixed-Mode Signal Operation
• Lockup-Free Operation
• Accommodates Standard Mode and Fast Mode I2C Devices and Multiple Masters
• Supports Arbitration and Clock Stretching Across Repeater
• Powered-Off High-Impedance I2C Pins
• 400-kHz Fast I2C Bus
• Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
