Analog Devices Inc./Maxim Integrated

MXB7843EEE+

MXB7843EEE+ Description

The MXB7843EEE+ is a 12-bit touch screen controller designed for precise and reliable touch input applications. Manufactured by Analog Devices Inc./Maxim Integrated, this integrated circuit (IC) is housed in a 16-pin QSOP package and features a 4-wire resistive touchscreen interface. It operates within a supply voltage range of 2.38V to 5.25V and draws a supply current of 650 µA, making it suitable for low-power applications. The MXB7843EEE+ is designed for surface mount technology (SMT) and is obsolete, indicating it is no longer in production but may still be available in limited quantities.

MXB7843EEE+ Features

• Touchscreen Interface: Equipped with a 4-wire resistive touchscreen interface, the MXB7843EEE+ provides accurate and responsive touch detection.
• Resolution: Offers a 12-bit resolution, ensuring high precision in touch coordinate measurements.
• Communication Interface: Utilizes the SPI interface for efficient data communication with host microcontrollers or processors.
• Supply Voltage and Current: Operates within a wide supply voltage range (2.38V to 5.25V) and consumes only 650 µA, making it suitable for battery-operated and low-power systems.
• Mounting Type: Designed for surface mount technology, facilitating easy integration into compact and space-constrained designs.
• Compliance: Complies with REACH and ROHS3 standards, ensuring environmental and safety regulations are met.
• Moisture Sensitivity Level: MSL 1 (unlimited), indicating it is suitable for a wide range of environmental conditions without special handling requirements.

MXB7843EEE+ Applications

The MXB7843EEE+ is ideal for a variety of applications where precise touch input is required. Some specific use cases include:

• Consumer Electronics: Ideal for portable devices such as smartphones, tablets, and e-readers, where low power consumption and high precision are critical.
• Industrial Control Systems: Suitable for touch-based control panels and interfaces in industrial environments, providing reliable touch detection in rugged conditions.
• Medical Devices: Can be used in medical equipment with touch interfaces, ensuring accurate and responsive user interactions.
• Automotive Systems: Applicable in automotive infotainment systems, where touch screens are increasingly common and require high reliability and precision.

Conclusion of MXB7843EEE+

The MXB7843EEE+ is a robust and precise touch screen controller that offers high resolution and low power consumption. Its compatibility with a wide range of supply voltages and its surface mount design make it suitable for a variety of applications. Despite being obsolete, the MXB7843EEE+ remains a reliable choice for designers looking for a proven touch screen controller solution. Its compliance with environmental and safety standards ensures it meets the requirements of modern electronics manufacturing.