The PCA9517D is an integrated circuit (IC) component that serves as a level translating I2C-bus repeater. It is designed to provide bidirectional level shifting between low voltage (down to 0.8V) and higher voltage (up to 5.5V) I2C-bus or SMBus systems. The PCA9517D is capable of buffering the SDA (data) and SCL (clock) lines in order to enhance signal strength in systems with numerous devices or long bus traces.
Key Features:
1. Bidirectional Level Translation: The PCA9517D enables communication between I2C-bus systems operating at different voltage levels. It can translate down from higher voltage levels to lower voltage levels and vice versa, ensuring compatibility between different I2C-bus devices.
2. Automatic Level Shifting: The IC automatically detects the voltage levels on the SDA and SCL lines and adjusts its output voltage accordingly. This feature simplifies system design by eliminating the need for external level-shifting components.
3. High-Speed Operation: The PCA9517D is capable of supporting high-speed modes of operation, including Fast Mode (400 kbit/s) and Fast Mode Plus (up to 1 Mbit/s), providing efficient data transfer rates in I2C-bus applications
