The SH79F0819M is a surface-mounted device (SMD) designed specifically for use in consumer electronics. It is an 8-bit microcontroller with 8 Kbytes of on-chip ROM and 1 Kbytes of internal RAM. It is designed to be used in diverse applications such as automation, industrial, automotive, and consumer products. This version of the SH79F0819M is manufactured by Sinowealth with a SOP-28 300mil (7.5mm*10.2mm) with RoHS lead free compliant. It has 4 CPU clock sources (LSI, HSI, RTC HSE), 20 I/O pins, 4 PWM Channels, and a watchdog timer. It has power saving modes and an integrated temperature-sensor which offers reliable system temperature monitoring. An external crystal can be used to increase its overall accuracy.