The STC12C5608AD-35I-SOP28 is a SOP-28_300mil RoHS manufactured by STC, a Chinese electronics company. It is a medium-low-end 8-bit microcontroller family with an integrated 1.8V power regulator. It is optimized for the cost-sensitive market including automotive, consumer, and industrial applications. It supports up to 8K ROM code, 256 byte RAM, 11 I/Os, and up to 35MHz high speed operation. It integrates a wide range of built-in peripherals such as serial communication modules, hardware multipliers, PWM and analog-to-digital converters. The STC12C5608AD-35I-SOP28 is compliant with RoHS standards, meaning it is free of lead, cadmium, and other harmful substances.