Description:

40P lock stc51 single chip minimum system board/development board support AT89C51 / S52 STC89C52 module:

1, compatible with AT, STC series MCU (support chip: STC89C52 STC12C5A60S2 STC11 / 10x series AT89S52 and chip compatible with the chip);

2, single-chip 40 IO all row pin leads;

3, with the self-locking switch, you can easily switch power off;

4, with power indicator, LED lights;

5,3.5mm * 1.3mm can be an external power supply seat;

6, pinout 3 VCC and GND, can be input or output power supply;

7, Port 0 pull-up resistor 1K has been pulled up;

8, with resistance and manual reset circuit;

9, support ISP download and serial download program;

10, integrated ISP 10P download interface, easy to download AT89S52 microcontroller;

11, crystal below the round hole socket, easy to replace the crystal (default with 11.0592M);

12, support two kinds of power input: DC-002 power supply seat (supporting seat is 3.5mm * 1.3mm) and single pin (power switch next to), the board reserved DC-005 power connector package;

13, with a programmable LED, do LED experiment, then P00 mouth;

14,40P locking seat, easy to replace the microcontroller chip, batch processing, eliminating the need for hands-on welding trouble;

15, high-quality double-sided sheet, better than single-sided circuit board.

ISP download port JTAG-10PWiring instructions:

1 P15

2 VCC

5 RST

7 P17

9 P16

2,4,8,10 GND