The CH559T is an integrated device manufactured by Qin Heng that consists of an 8-bit Central-Processing-Unit, NVRAM, on-chip oscillator, programmable counter/timer, and ISP, as well as other resources in a single chip. This device is packed in a SSOP-20_208mil RoHS package, meaning it has a body size of 20 pins at a width of 208 mils, and is compliant with the requirements of Restriction of Hazardous Substances (RoHS). This integrated device is designed for ultra-low power MCUs and System-on-Chip (SoC). It requires low voltage operation and operates and supports up to 32K x 8 external RAM. Additionally, the CH559T features I2C, SPI, UART, USB, CAN, and PWM interfaces, making it an ideal choice for a wide range of applications.