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DS89C420 Development Board

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mharis

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A Development boarb for DS89C4xx with LCD display, keyboard, 8 test leds, 8-seagment led, dip switches. I have built it and it's working perfectly. You can download the schematic and PCB!
 

mharis said:
A Development boarb for DS89C4xx with LCD display, keyboard, 8 test leds, 8-seagment led, dip switches. I have built it and it's working perfectly. You can download the schematic and PCB!
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please tell me the meaning of j1,j2,j3,j4,j10
 

From where i can download pcb schematic?
 

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