STMicroelectronics

STMPE1801BJR

STMPE1801BJR Description

The STMPE1801BJR is a high-performance Interface IC Chip developed by STMicroelectronics, designed for applications requiring efficient I/O expansion and control. This chip is part of the Xpander Logic™ series, which is renowned for its versatility and reliability in embedded systems. The STMPE1801BJR features an I2C interface with a clock frequency of 400 kHz, ensuring fast and reliable data communication. It supports a wide supply voltage range of 1.65V to 3.6V, making it suitable for various power supply configurations.

The STMPE1801BJR is equipped with 18 I/O lines, each capable of sourcing or sinking up to 4mA of current, providing robust control capabilities for a variety of peripheral devices. The chip also includes a keypad controller and Power-On Reset (POR) functionality, enhancing its utility in user interface applications. The STMPE1801BJR is packaged in a surface-mount 25-FlipChip, which is ideal for compact and space-constrained designs. The chip is RoHS3 compliant and REACH unaffected, ensuring compliance with environmental regulations.

STMPE1801BJR Features

• I2C Interface: The STMPE1801BJR features a 400 kHz I2C interface, enabling high-speed communication with microcontrollers and other system components.
• 18 I/O Lines: With 18 programmable I/O lines, this chip offers extensive control capabilities for various peripherals, making it suitable for complex embedded systems.
• Keypad Controller: The integrated keypad controller simplifies the implementation of user interfaces, reducing the need for additional components.
• Power-On Reset (POR): The POR feature ensures reliable system initialization, enhancing the overall robustness of the system.
• Wide Voltage Range: The STMPE1801BJR operates within a supply voltage range of 1.65V to 3.6V, providing flexibility in power supply design.
• Surface-Mount Packaging: The 25-FlipChip package is ideal for compact designs, ensuring minimal footprint on the PCB.
• Environmental Compliance: The chip is RoHS3 compliant and REACH unaffected, meeting stringent environmental standards.

STMPE1801BJR Applications

The STMPE1801BJR is ideal for a wide range of applications, particularly those requiring efficient I/O expansion and control. Some specific use cases include:

• Consumer Electronics: Ideal for devices such as smartphones, tablets, and smart home appliances where compact design and efficient I/O control are crucial.
• Industrial Automation: Suitable for control panels, human-machine interfaces (HMIs), and other industrial applications where robust and reliable I/O expansion is required.
• Medical Devices: Applicable in medical equipment where precise control and user interface functionality are essential.
• Automotive Systems: Useful in automotive applications such as infotainment systems and dashboard controls, where space constraints and high reliability are key considerations.

Conclusion of STMPE1801BJR

The STMPE1801BJR is a versatile and reliable Interface IC Chip that offers significant advantages over similar models. Its high-speed I2C interface, extensive I/O capabilities, and integrated keypad controller make it an ideal choice for a variety of applications. The wide supply voltage range and compact surface-mount packaging further enhance its suitability for modern, space-constrained designs. While the product is marked as obsolete, its robust features and environmental compliance make it a valuable component for legacy systems and applications where its unique capabilities are still highly relevant.