51 avr mcu minimum system board development board

1. IO port all leads, the classic 51 minimum system, saving welding
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2. Integrated 10p ISP download interface, easy to download AT89S52 microcontroller.
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3 welded round hole socket, easy to change the crystal (default is 11.0592 M)
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4. Support chip: STC89C52 STC12C5A60S2 STC11 / 10 × AT89S52 series, compatible chip pin
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5. Power switch, easy to experiment.
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6. Two ways: Power input DC-005 power supply (support for 5.5 * 2.1) and a single pin (near the power switch)
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7. External amplification VCC 3 way, GND, as shown needle.
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8. P0 port wear.
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9. Reset method: external reset button and power reset button.
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10. Using green IC lock, easy to replace the chip.
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11. We independently develop, produce, supply long-term stability.
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13. Cardboard size: 4.1 cm * 8.9 cm