Description: <p>The minimum system board using STC and AVR dual reset operation,more user-friendly debugging of the program;</p><p>1.5V and 3.3V power supply options to expand the use of single-chip,this is the company's first design,customers no longer have to use low-voltage microcontroller and worry!</p><p>On-board expansion of the STC microcontroller program download interface,and the store sell STC downloader with the use of excellent results.</p><p>AT89S51 / 52 and AVR series MCU can be downloaded through the ISP dedicated downloader program.</p><p>Double panel,value low-cost sales.</p> Specification: <p>Customers in the proficiency of 51 single-chip,further learning AVR microcontroller,only through an AVR microcontroller adapter board,You can continue to use the small board as the AVR microcontroller minimum system;</p><p>PCB double-sided grid CC design,green and blue two colors,and some monolithic board on the market is not a level;</p><p>MCU 40 I / O pins all lead.Part of the components using a built-in and patch packaging design,simple structure tight,strong sense of technical art;</p><p>Crystal:11.0592M</p><p>Support chip:STC series of low-voltage high-voltage chip AT89SXX and chip pin compatible with the chip,AVR microcontroller DIP-40 pin package.</p><p>The minimum system board,whether 51 or AVR series microcontrollers are double reset mode of operation.</p><p>Can be powered by USB,with 5V power supply mode,can save a 5-10 yuan power supply; also for DuPont line external power supply,power supply options!</p><p>With two 5V and 3.3V VCC,GND output,to facilitate the use of external circuits;</p><p>With reverse voltage breakdown components to prevent the for protection of the diode,greatly improving the safety of the system board.</p><p>Download with CP2102 and other serial modules supporting the use of</p> Size_Chart: <p>Size:Approx. 28*10*8mm / 1.10x0.39x0.31inch</p> Note: Package_Includes: <p>1 Piece of Development Board</p>