STM32F103CBT6 Maple Mini ARM STM32 Cortex-M3 Voltage Regulator Controller Board Module 3.3V USB Digital IO PWM Pins Port

Specifications: Processor: STM32F103CBT6, 32 ARM Cortex-M3 processor Frequency: 72 MHz Operating Voltage: 3.3 V Input Voltage (recommended): 3 V - 12 V Size: 2.02 " 0.72" Features: - 128 KB Flash and 20 KB SRAM - 34 digital io ports (GPIOs) - 12 16-bit precision PWM port - 9 12 precision analog input (ADC) port - 2 SPI channel - 2 I2C channel - 7-channel direct memory access (DMA) (dma.h) - 3 USART (serial) channel - An enhanced and three general purpose timers - Can be downloaded directly via the USB port and communications program - An external JTAG - Nested Vectored Interrupt Controller (NVIC) (including GPIOs on the external interrupt) - Support for low-power, sleep and standard mode (