PCA9517ADP

The PCA9517ADP is a CMOS integrated circuit designed by NXP Semiconductors, functioning as a level-translating I2C/SMBus repeater. It is used to facilitate communication between devices operating at different voltage levels in an I2C or SMBus system, making it highly valuable in multi-voltage systems. Here are the key features and specifications:

1. Type:
   • I2C/SMBus Repeater with Level Translation: Facilitates communication between I2C devices operating at different voltage levels by translating the voltage levels between the two sides of the bus.
2. Voltage Translation:
   • Dual-Supply Operation: Supports two different voltage levels, with VCC(A) ranging from 2.7V to 5.5V and VCC(B) from 2.3V to 5.5V, allowing for flexible interfacing between various logic levels.
   • Bidirectional Translation: Capable of bidirectional signal translation, enabling communication in both directions on the I2C bus.
3. I2C Bus Compatibility:
   • I2C and SMBus Compatibility: Fully compatible with both I2C and SMBus protocols, making it versatile for various applications.
   • Supports Standard Mode (100 kHz) and Fast Mode (400 kHz): Ensures compatibility with a wide range of I2C devices.
4. Buffering Capability:
   • Bus Buffering: Provides strong buffering capabilities to isolate capacitance between I2C bus segments, improving signal integrity and extending the bus length.
   • Rise Time Accelerator: Features rise time accelerators on the B-side to enhance the performance of the bus, especially in systems with long cables or high capacitance.
5. Package Type:
   • 8-Pin TSSOP Package: Housed in a compact 8-pin TSSOP (Thin Shrink Small Outline Package), ideal for space-constrained designs.
6. Low Power Consumption:
   • Power-Efficient Design: Designed for low power operation, making it suitable for battery-powered and energy-efficient applications.
7. Applications:
   • Multi-Voltage I2C Systems: Ideal for systems where devices operate at different voltage levels, such as in mixed-voltage environments found in modern electronics.
   • Communication Bridges: Acts as a bridge between different voltage domains in communication systems.
   • Consumer Electronics, Automotive, and Industrial Applications: Commonly used in consumer electronics, automotive systems, and industrial control applications where robust and reliable I2C communication is required.

The PCA9517ADP is a robust and flexible I2C/SMBus repeater with level-shifting capabilities, making it an essential component for enabling communication between devices with different operating voltages in a wide range of applications.