This is a 
STM32G071KBU3 ARM MCU , STM32 Family STM32G0 Series Microcontrollers, ARM Cortex-M0+, 32 bit, 64 MHz, 128 KB product from STMICROELECTRONICS with the model number STM32G071KBU3
Other details
| Brand | STMICROELECTRONICS | 
| Part Number | STM32G071KBU3 | 
| Quantity | Each | 
| Technical Data Sheet EN |  | 
| Product Change Notice EN |  | 
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