The PCAL6416AERJ is a robust, feature-rich GPIO (General Purpose Input/Output) expander from NXP Semiconductors, designed to enhance the I/O capabilities of microcontrollers and microprocessors in a wide range of applications. This device operates under a low-voltage power supply and is compatible with the I²C-bus interface, which makes it an ideal choice for advanced control and monitoring purposes.

Key Features

• Interface: I²C-bus interface (SCL/SDA) with speeds up to 400 kHz (Fast-mode) and 1 MHz (Fast-mode Plus).
• Channels: 16-bit I/O port expander which can be used as either inputs or outputs.
• Interrupt Output: Configurable interrupt output pin to alert the host controller of input changes.
• Power Supply: Operates from a low voltage of 1.65 V to 5.5 V, making it suitable for battery-powered and low-power devices.
• Agile I/O: Each I/O is equipped with high-current drive capability, and the I/O configuration is highly flexible.
• Polarity Inversion: Input port polarity is programmable, allowing for easy adaptation to different system requirements.
• Internal Power-On Reset: Ensures a reliable start-up and initialization of the I/O states.
• Packaging: Housed in a space-saving HVQFN24 package.

Applications

The PCAL6416AERJ is versatile in its applications, making it suitable for:

• Server motherboards and industrial computing
• Mobile phones, tablets, and other portable devices
• Smart home automation and IoT devices
• Consumer electronics such as gaming consoles and smart TVs
• Embedded systems requiring additional I/O capabilities

Technical Specifications

• Product: PCAL6416AERJ
• Manufacturer: NXP Semiconductors
• Package/Case: HVQFN24
• Operating Temperature: -40°C to +85°C

With its extensive set of features and capabilities, the PCAL6416AERJ from NXP is a powerful solution for expanding the I/O functionality in a variety of electronic systems, ensuring efficient and reliable operation across multiple applications.