MM32F103 series promoted by MindMotion(such as MM32F103C8T6)is completely compatible with STM32F103 series(such as STM32F103C8T6)in design.The domestic MCU with the same package can be directly soldered to the PCB pad of the original STM32,without changing the circuit board design.For projects with high requirements of cost control and supply chain stability,MM32F103 provides a reference for the localization selection with smooth connection between STM32F103 software and hardware.
First,the domestic MCU chip kernel architecture.
The domestic MCU chip is based on a 32-bit microcontroller with Arm®Cortex®-M3 core,and its highest working frequency can reach 96MHz；On-chip integration of Flash program memory up to 128KB and SRAM up to 20KB,and support for on-chip flash online system programming(ISP)through Bootloader,which is convenient for firmware upgrade and batch burning.
Second,domestic MCU chip peripheral resources.
①Analog peripherals:two 12-bit ADCs with conversion time of 1μs,which can support up to 16 input channels,and the sampling time and resolution can be configured.
②Timers:3 16-bit general timers and 1 16-bit advanced timer.
③Communication interface:2 IC,2 SPI,3 UART,and 1 USB and 1 CAN interface.
Third,domestic MCU chip application scenarios.
①Motor drive and application control.
②Medical and handheld devices.
③PC game peripherals and GPS platform.
④Industrial applications:programmable controller(PLC),frequency converter,printer and scanner.
⑤alarm system,video intercom,and heating ventilation and air conditioning system,etc.
Keywords：MCU
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