40P locking 51 single chip microcomputer system board intelligent car robot accessories DIY necessary

SINONING

$2.99 
SKU: SNA49

Parameters:
1, the power supply voltage within DC005 is negative or row needle on power supply, power supply voltage and the working voltage of the chip;
2, crystals: 11.0592M;
3, PCB size: 8.9cm * 4.3cm;

Features:
1. The classic 51 minimum system, save yourself the trouble wiring welding;
2.40 all pins derivation, convenient extension.;
3. P0 mouth pull up resistors added 10 k, users can more easily operation P0 mouth;
4. The ISP download independent derivation, convenient AT89S5X series of program download;
5. Support chips: STC89C5X, AT89S5X, STC12C5A60S2 STC11/10 x series and pin compatible chip;
6. With a self-locking switch, can control system of flexible DC005 power on and off, convenient user for various tests (to row needles or DC3-10 input power no on-off action);
7. Flexible power supply mode: ISP download available power supply, available standard DC - 005 interface for taking electric power supply, can also be used needle.
8. Built-in parts design, space saving, pin Numbers are marked on the plate, convenient wiring;