The STC11F02E-35I with STC SOIC-20_300mil RoHS is a 8-bit microcontroller manufactured by STC (Shenzhen Sintron Technology Co., Ltd.). This microcontroller has 1024 bytes of on-chip data EEPROM and 4 Kbytes of FLASH program memory, with a total of 256 I/O and peripheral ports. It features an extended operating temperature range of -40 to +85°C, which makes it suitable for a wide range of applications. It has an integrated 8052 compatible 8051/8052 CPU and has a 4-channel snap-together digital comparator, 5-volt 12-bit A/D converter, watchdog timer, two 16-bit timers, and I/O port, 8-bit timer, and one-shot pulse width modulator. This microcontroller is RoHS compliant and designed to minimize power consumption.