STMPE2403TBR

Overview

The STMPE2403TBR is a 24-bit enhanced port expander featuring an integrated keypad controller and PWM output. It operates on a supply voltage range of 1.65V to 1.95V with a maximum clock frequency of 400 kHz. The device supports I²C interface communication and includes interrupt output functionality. It is housed in a 36-pin TFBGA package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a dedicated keypad controller for input scanning
• Provides programmable PWM outputs for display or LED control
• Supports low-voltage operation suitable for portable applications

Applications

• Mobile phone keypad interfacing
• Portable media player input control
• Handheld device display backlight management

Procurement Notes

Verify component authenticity through authorized distribution channels due to obsolete status. Confirm RoHS compliance documentation matches current regulatory requirements. Validate package integrity upon receipt, as moisture sensitivity requires proper handling procedures during storage and assembly processes.

Selection Notes

Select this component when designing systems requiring extensive GPIO expansion via I²C bus. Ensure the host microcontroller supports the required 400 kHz clock speed. Verify that the application environment remains within the specified -40°C to +85°C operating temperature range for reliable performance.

Part Context

This part belongs to the STMPE2401 series of specialized interface ICs manufactured by STMicroelectronics. It serves as an I/O expander designed to reduce pin count requirements on main processors. The series focuses on enhancing user interface capabilities in compact electronic devices through integrated peripheral control features.

Replacement Considerations

Public confirmed substitute part numbers are not available. The component status is listed as obsolete. Designers should consult official manufacturer resources for potential end-of-life alternatives or next-generation replacements.