The HDSC HC32F003C4UA-SFN20TR is a QFN-20 RoHS Other Processors and Microcontrollers (MCU) device. This 4-bit MCU is a low-power 8-bit microcontroller that features an ARM Cortex-M0 core, 4Kbytes of flash memory, 256 bytes of SRAM, up to 32 I/Os, a clock source of up to 48MHz, and its power supply range of 1.8V to 3.6V. It is a facility for brand protection and supports symmetric encryption. The low-power characteristics of this MCU make it suitable for applications such as medical equipment, smart home connectables, and consumer electronics. Additionally, this MCU has a Self-timed traffic signs and several sleep modes to reduce power consumption.