The STC15W402AS-35I-DIP20 with STC DIP-20 is an electronic integrated circuit manufactured by STC. It is a variant of the STC15W402AS microcontroller featuring a semi-static RAM of 8192 bytes. It has a 40-pin DIP package and is compliant with RoHS standards. The device is designed to meet certain requirements in areas such as industrial control, home application, and consumer electronics. It has a main clock of up to 24MHz and various peripherals, including two comparators, four PWMs, a real-time clock, a software watchdog, UARTs, multiple SPI/SDIO/I2C buses, and a variety of interrupt sources. The STC15W402AS-35I-DIP20 can be powered by a 5V DC supply.