【应用笔记】STMPE2401 - 扩展PWM控制器 AN2424 Application note STMPE2401 - Port expander PWM controller Introduction STMPE2401 is the first in the family of ST port-expander logic products. The principle of a basic expander logic is to provide additional I/Os that can be used by the host processor to implement additional features such as increasing the number of control signals and mixed signal lines, or controlling more number of peripherals. In addition to the above mentione……