Maxim Integrated MAX6965AEE I/O Expander

The MAX6965AEE from Maxim Integrated is a versatile I/O expander designed to enhance the capabilities of microcontrollers and microprocessors in managing LED displays and other digital signals. This compact and efficient device comes in a 16-pin QSOP package, making it a suitable choice for space-constrained applications.

Key Features

• Integrated PWM: Each output of the MAX6965AEE is equipped with pulse-width modulation (PWM), allowing for precise control over the brightness of LEDs or the speed of motors.
• Expansive I/O Control: The device provides 10 I/O ports that can be individually configured as either inputs or outputs, offering a flexible solution for expanding the I/O capabilities of a host controller.
• Serial Interface: It utilizes a two-wire, I²C-compatible serial interface that operates at clock frequencies up to 400kHz, enabling simple and efficient communication with most microcontrollers.
• Transition Detection: The MAX6965AEE features built-in transition detection on the input pins, which can signal the host processor to read the inputs without the need for continuous polling, thus saving power and processing resources.
• Output Current Control: The output drivers are capable of sourcing or sinking up to 20mA per output, and the total package current limit is 145mA, making it suitable for directly driving LEDs.

Applications

The MAX6965AEE is designed for a broad range of applications where additional I/O ports and LED drive capability are required. Its uses include:

• LED Display Control
• Keypad Scanning
• Industrial Control Systems
• General Purpose I/O Expansion

With its robust feature set and compact form factor, the Maxim Integrated MAX6965AEE I/O expander is a prime choice for engineers and designers looking to enhance the functionality of their embedded systems without significant redesign or additional microcontroller pins. Whether for driving LEDs in a matrix display or expanding the digital I/O for a microprocessor, the MAX6965AEE provides a reliable and efficient solution.