MicroelectronicsThe Fudan Microelectronics FM33G023 is an Other Processors and Microcontrollers (MCUs) QFN32 RoHS package. It is a 32-bit processor that uses an ARM Cortex-M3 core running up to 20 MHz. It features 512 KB of Flash memory, 64 KB of RAM, and comes with a variety of I/O ports, such as a UART, SPI, I2C, and ADC. It comes with an on-chip temperature sensor and has an operating temperature range of -40°C to +85°C. It is also RoHS compliant, so it can be used in industrial applications.