ITEM NAME:1x ARM Cortex-M3 STM32F103C8T6 STM32 Minimum System Development Board Hot Descriptio n Description: 1. One STM32F103C8 main chip 2. Standard parameters of the patch 8M crystal oscillator (up to 72M through the internal PLL of the chip) 3. LM1117-3.3v voltage stabilizing chip, providing 800mA current 4. One miniUSB interface can provide power to the system version and reserve USB communication function 5. Reset button 6, A standard JTAG download port, support JLink, STLink 7, BOOT select port 8, IO expansion row pin 20pin x 2 9. One power indicator 10. One function indicator light is used to verify the basic function of IO port 11. Reserved serial port download interface, convenient and 5V development board connection, with serial port can download programs 12. High-performance epson 32768Hz crystal oscillator, the price is 10 times the price of the direct crystal oscillator, easy to start vibration 13. 20K RAM, 64K ROM, TQFP48 package Specifications: Size: 64mm X 36.4mm Package Included: 1 *Â ARM Cortex-M3 STM32F103C8T6 STM32 Minimum System Development Board Note: 1.Due to the manual measurement and different measurement methods, the actual size could be slightly different. 2.Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different. Whatever the ending's perfect or not, you can't disappear from my world 1x ARM Cortex-M3 STM32F103C8T6 STM32 Minimum System Development Board Hot.Whatever the ending's perfect or not, you can't disappear from my world. One miniUSB interface can provide power to the system version and reserve USB communication function. We'd like to settle any problem in a friendly manner.