The HC32F003C4PA is a 20-Pin TSSOP RoHS-compliant Other Processors and Microcontrollers (MCUs) device manufactured by HDSC. It is a 4KB flash, 8-bit MCU with 16-level sub-clock operation. It supports multiple modes of communication such as UART, I2C, and SPI. It has an operating voltage range of 2.7V to 5.5V and features a 32-bit extended instruction set, four 8-bit inputs and outputs, and a variety of timers. Additionally, this device offers features such as an oscillator drive, an end-of-life notice, and an internal clock generator. The HC32F003C4PA is suitable for various applications including industrial, medical, and automotive.