STM32F103C6T6A

The maximum frequency of the ARM 32-bit Cortex-M3 CPU Core in the STM32F103x4 and STM32F103x6 MCUs is 72 MHz.

The STM32F103x4 and STM32F103x6 MCUs offer a range of communication interfaces, including: - Two I2Cs and SPIs - Three USARTs - USB - CAN interface compliant with specifications 2.0A and B with a bit rate up to 1 Mbit/s - 2 × USARTs with ISO 7816 interface, LIN, IrDA capability, and modem control - 1 × SPI with a speed of 18 Mbit/s - USB 2.0 full-speed interface . These communication interfaces provide a comprehensive set of options for connecting and communicating with external devices and systems.

The STM32F103x4 and STM32F103x6 MCUs support a flexible 7-channel general-purpose DMA for managing memory-to-memory, peripheral-to-memory, and memory-to-peripheral transfers. Each channel is connected to dedicated hardware DMA requests, with support for software trigger on each channel. Configuration is made by software, and transfer sizes between source and destination are independent. The DMA can be used with main peripherals such as SPI, I2C, USART, general-purpose and advanced-control timers TIMx, and ADC. Therefore, the STM32F103x4 and STM32F103x6 MCUs support 7 DMA channels.