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The HY4008P is a high-performance, low-power, 8-bit microcontroller from Holtek. It is based on the 8051 core and has a built-in ROM, RAM, and I/O ports. It has a maximum clock frequency of 24MHz and a wide range of peripherals, including UART, SPI, I2C, and PWM. The HY4008P is suitable for a variety of applications, such as home automation, industrial control, and consumer electronics. It is available in a TO-220 package and is RoHS compliant. (For reference only)