The NXP PCA9614DPZ is a robust, high-performance differential I²C-bus buffer that enhances the capabilities of the standard I²C communication protocol. Designed to provide bidirectional buffering for both the data (SDA) and the clock (SCL) lines, the PCA9614DPZ allows for extended-range communication that is less susceptible to noise, making it ideal for challenging electrical environments.

Key Features

• Hot-Swap Capability: This device supports hot swapping and voltage-level translation, which means it can be inserted into a live backplane without disrupting the communication bus.
• Differential Signaling: The PCA9614DPZ utilizes differential signaling, which significantly improves noise immunity and allows for longer cable runs compared to single-ended solutions.
• Enhanced Signal Integrity: The buffer is designed to maintain signal integrity in high-capacitance and high-noise environments, ensuring reliable communication between devices.
• Extended Operating Range: It supports an extended voltage range from 2.3V to 5.5V, making it versatile for various applications and system designs.
• Fail-Safe Function: The device has a built-in fail-safe function that prevents system lock-up and ensures the bus lines are not stuck in a low state.
• Package: The PCA9614DPZ comes in a small TSSOP8 package, which is ideal for space-constrained applications.

Applications

The PCA9614DPZ is designed for use in a wide range of applications that require robust I²C communications. These include industrial control systems, telecommunications infrastructure, server and storage systems, and automotive networks where extended cable lengths and noise immunity are critical.

Technical Specifications

• Two-channel bidirectional buffer for SDA and SCL lines with enable function
• 400 kHz and 1 MHz I²C-bus operation (Fast-mode and Fast-mode Plus)
• Pre-charged outputs for undriven bus lines
• 8 kV HBM ESD protection on the bus pins
• Operating temperature range from -40°C to +85°C

The NXP PCA9614DPZ differential I²C-bus buffer is a highly integrated solution that simplifies the design of complex communication systems, ensuring reliable data transfer even in the most demanding applications.