Introducing the PCA9564N from NXP Semiconductors

The PCA9564N is a parallel bus to I2C-bus protocol converter and interface chip from the renowned semiconductor manufacturer, NXP Semiconductors. This innovative product is designed to provide a seamless bridge between a standard parallel bus of a microcontroller and the serial I2C-bus; this allows the microcontroller to communicate directly with I2C-bus compatible devices through its parallel interface.

The PCA9564N is equipped with an array of features that make it a versatile and efficient choice for a wide range of applications. It supports both the Standard-mode (100 kbit/s) and Fast-mode (400 kbit/s) I2C-bus specifications, providing flexibility for different system requirements. The device can operate as a master or a slave and is capable of generating all I2C-bus specific sequences, including start and stop conditions, and can be interfaced with most microcontrollers with a parallel bus.

Key features of the PCA9564N include:

• An 8-bit parallel bidirectional data port (P0-P7).
• Control registers for different operational modes accessible through the parallel bus.
• Internal oscillator reduces external components.
• Active LOW interrupt output that can be connected to the microcontroller's interrupt input.
• Hardware or software reset options for enhanced system reliability.
• Operating power supply voltage range of 2.5V to 5.5V, allowing for compatibility with both 3.3V and 5V systems.
• Available in a 20-pin SO or DIP package, suitable for a variety of PCB designs.

The PCA9564N is a perfect solution for applications that require the expansion of I2C-bus connectivity or for systems that do not have a native I2C interface. It is commonly used in environments where multiple I2C devices need to be controlled and where PCB space is at a premium. With its parallel interface, the PCA9564N allows for a straightforward integration into embedded systems, industrial control systems, and consumer electronics, among others.

By choosing the PCA9564N for your design, you can rely on NXP's commitment to quality and performance, ensuring a reliable and efficient communication interface for your I2C-bus applications.