NXP P82B96PN I²C-bus Extender
The NXP P82B96PN is a versatile I²C-bus extender designed to provide a robust solution for extending the reach of the I²C-bus communication interface. This device allows for the connection of devices over longer distances than what is typically possible with standard I²C interfaces. It is particularly useful in applications where the I²C bus must be distributed over a large area, such as within industrial environments, large-scale sensor networks, or complex consumer electronics systems.
With the P82B96PN, systems designers can overcome the limitations imposed by the capacitive load of standard I²C-bus lines, enabling them to drive signals across longer cables. The device achieves this by splitting the bidirectional I²C clock (SCL) and data (SDA) lines into unidirectional in-phase signals, which can then be transmitted over a differential pair with significantly improved noise immunity and lower voltage drops.
The P82B96PN supports a wide range of supply voltages from 3V to 12V, making it suitable for interfacing with both low-voltage and standard 5V logic levels. This flexibility ensures compatibility with a variety of I²C master and slave devices without the need for additional level-shifting components. Additionally, the P82B96PN's design allows for up to four extenders to be connected in series, further expanding the potential communication range of the I²C-bus.
Key features of the NXP P82B96PN include:
- Bi-directional voltage level translation without direction pin
- 400 kHz operation with the capability to buffer more capacitance
- Allows for long bus lines in distributed systems
- Low standby current
- No interference with the I²C-bus protocol
- Compatible with standard I²C-bus modes
Designed for ease of use, the P82B96PN comes in a DIP8 (Dual In-line Package) form factor, simplifying the prototyping and integration process for engineers. Whether it's for industrial control units, home automation systems, or any application requiring reliable I²C communication over distance, the NXP P82B96PN provides a dependable solution for extending the I²C-bus capabilities.
