STMicroelectronics

STMPE1601TBR

STMPE1601TBR Description

The STMPE1601TBR is an I/O Expander from STMicroelectronics, belonging to the Xpander Logic™ series. This 25TFBGA-packaged device is designed to offer a flexible and efficient solution for expanding the I/O capabilities of microcontrollers in various applications. With a clock frequency of 400 kHz and an I2C interface, it provides a reliable communication link between the microcontroller and external devices. The STMPE1601TBR is equipped with 16 I/O lines, supporting both input and output functions, and features an open-drain output type. It operates within a supply voltage range of 1.65V to 3.6V and can source or sink a maximum current of 4mA per I/O line.

STMPE1601TBR Features

• Keypad Controller: The STMPE1601TBR includes a built-in keypad controller, simplifying the implementation of matrix keypads in user interfaces.
• POR (Power-On Reset): The device has an integrated POR circuit, ensuring reliable startup and operation.
• PWM (Pulse Width Modulation): PWM functionality allows for precise control of analog signals, making it suitable for applications requiring variable output levels.
• Interrupt Output: The STMPE1601TBR provides an interrupt output, enabling efficient communication with the host microcontroller.
• ECCN (Export Control Classification Number): Classified as EAR99, indicating that it is not subject to the most restrictive export controls.
• RoHS Compliance: The device is compliant with RoHS3 standards, making it suitable for environmentally conscious designs.
• REACH Status: The STMPE1601TBR is REACH unaffected, meaning it does not contain substances of very high concern (SVHCs) above the specified limits.

STMPE1601TBR Applications

The STMPE1601TBR is ideal for applications where I/O expansion is necessary, such as:

• Industrial Control Systems: For expanding the number of digital inputs and outputs in industrial automation and control systems.
• Consumer Electronics: In devices like smart home appliances, where additional buttons or switches are required.
• Portable Devices: For adding additional user interface elements in smartphones, tablets, and wearables.
• Automotive Applications: In vehicles for controlling various electronic accessories and systems.

Conclusion of STMPE1601TBR

The STMPE1601TBR, with its robust feature set and versatile I/O capabilities, is a valuable component for designers looking to expand the functionality of their microcontroller-based systems. Its unique combination of a keypad controller, PWM functionality, and interrupt output makes it stand out among similar models. Despite being classified as obsolete, it remains a reliable choice for applications where these specific features are required. However, for new designs, it is recommended to consider more recent offerings from STMicroelectronics that may offer enhanced performance and extended longevity.