51 Single Chip Microcomputer Minimum System Board DIY Kit Development Board Learning Board 40P Locking Seat with Movable

Parameter 1 Power supply voltage DC005 is powered on the positive and negative pins or on the pin header the power supply voltage is the same as the working voltage of the chip 2 Crystal oscillator 12M 3 PCB board size 8 9cm 4 3cm The baby is cost effective and has the following characteristics 1 Classic 51 minimum system eliminating the trouble of wiring and welding 2 All 40 pins are led out to facilitate expansion 3 A 10K pull up resistor is added to port P0 so users can operate port P0 more freely 4 The ISP download port is led out independently to facilitate the download of AT89S5X series programs 5 Support chips STC89C5X AT89S5X STC12C5A60S2 STC11 10x series and chip pin compatible chips 6 With a self locking switch it can flexibly control the on and off of the DC005 power supply of the system which is convenient for users to carry out various tests there is no on and off function for the power input of the pin header or DC3 10 seat 7 Flexible power supply It can be powered by ISP download port can be powered by standard DC 005 interface or can be powered by pin header 8 Built in parts design saving space pin numbers are marked on the board convenient for wiringNote This item does not contain a single chip microcomputer please pay attention to this Package included 1 x PCB board2 x 40P pin header1 x 40P locking seat1 x 3MM LED2 x Resistance 4 7K1 x 6 6 button1 x 10UF capacitor1 x A09 103 Exclusion1 x DC3 10 Bull Horn Block1 x 8 8 self lo