The HC32L073PATA-LQFP100 is a low power microcontroller consisting of an RISC CPU, memory, and peripherals. It is designed with a total of 8 general-purpose 16-bit registers, 16 8/16/32-bit timers/pulsers, 10 input / output ports, and 11 communication ports including, 2 UARTS, 2 USB, ETH, I2C, and SPI. It has 4 KB of data Flash, a 4 KB of boot Flash and 128KB of Ultra Highspeed, high density RAM. It offers two supply-voltage ranges, 1.8V to 5.5V and 3.3V to 5.5V. This MCU is also RoHS compliant, meaning it adheres to stringent environment-protection requirements. The package of this chip is LQFP-100, which stands for Low-Profile Quad Flat Packaged. It is manufactured by Hangzhou Silan Microelectronics Co., Ltd (HDSC).