Specification: Origin: Mainland China Type: Module Condition: New Chip Description: Package Type: LQFP Number of Pins: 48 Core: Cortex-M3 Operating Frequency: 72MHz Storage Resources: 64K Byte Flash, 20KByte SRAM Interface Resources: 2x SPI, 3x USART, 2x I2C, 1x CAN, 37x I/O ports Analog-to-Digital Conversion: 2x ADC (12-bit/16-channel) Timers: 3 general-purpose timers and 1 advanced timer Debug Download: Support JTAG/SWD debug interface download, support IAP RT9193: 3.3V voltage regulator chip, maximum output 300mA Product Size: 54.00x23.00x12.00mm/2.11*0.9*0.47in  Interface Description: 1. SWD interface: support simulation, download and debugging. 2. Mirco USB interface: power supply and USB communication, does not support download. 3. USART1 interface: you can use USART1 to download the program, or use USART1 for communication. 4. MCU pin interface: Pin out all I/O port pins, convenient to connect with peripherals. 5. 5V and 3.3V power input/output interface: commonly used for external power supply, or common ground processing with other modules. Other Device Description: 1. Power LED (PWR): power indicator status, can determine whether the power supply is stable. 2. User LED (PC13): convenient for I/O output testing or indicating program operation. 3. Start jump to select programming mode: (1, user flash memory 2, SRAM 3, system memory). 4. Reset button: used to reset the user program of the chip. 5. 8M crystal oscillator: can set the frequency so that the system main frequency is 72MHz. 6. 32.768KHz crystal: can be used for built-in RTC, or for calibration. Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Included: 1*Minimum System Development Board 1.Advanced Core Performance: Our minimum system development board module is built around a powerful STM32 chip with a 64K Byte Flash and 20KByte SRAM, encapsulated in an LQFP package with 48 pins, ensuring swift and efficient operations for complex tasks and applications. 2.Versatile Connectivity Options: Featuring 2x SPI, 3x USART, 2x I2C, and 1x CAN for flexible connectivity, along with 37x I/O ports, this minimum core learning board provides a wide range of options for connecting to various devices, making it ideal for intricate electronic projects and system developments. 3.Precision Debugging and Programming: The microcontroller core board supports JTAG/SWD interface for debugging, programming, and IAP with ease, complemented by a Micro USB interface for power and communication, and a USART1 interface, providing users with a hassle-free and speedy setup for their development needs. 4.Enhanced Power Management: With a RT9193 3.3V regulator ensuring a stable output of up to 300mA and power supply interfaces for both 5V and 3.3V, the ARM system board processor also features a power LED (PWR) and a user LED (PC13) for straightforward power status and operation indication, enhancing the reliability and user-friendliness of the device. 5.Customizable Physical Configuration: The ARM development module comes with un-soldered pin headers, allowing users to choose the soldering direction that best fits their specific use case. This customizable approach ensures that the board can easily adapt to a variety of setups and projects, from educational environments to advanced engineering applications.