The STC12C5206AD with STC SOIC-20_300mil RoHS is an 8-bit single-chip microcontroller manufactured by STC. It has an 8051 compatible core with high speed, low power consumption and low cost. It is an enhanced version of the STC12C5A series, with upgraded peripherals including an SPI, I2C, and PWM interfaces. It also has an internal RC oscillator, and an on-chip LCD driver. This microcontroller is RoHS-compliant and has an industrial temperature range of -40 to +85 °C. It can be used in embedded control applications such as medical, automotive, industrial automation, and consumer electronics.