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Help me identify this!!! PLZ

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Nanop

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Hi, could anyone tell me what these 2 things are.
U can see the top one, and the bottom one has 5 pins. It also has a label : SMTA334

43_1158410486.JPG


Thanks for ur Help!!!
 

Nanop

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Thanks!, but I know that it's a dip switch

I want to know what a DIP switch is used for?
And what the thing on the bottom is for?
 

IanP

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That thing below the DIP switch is 4-way pullup resistor network, something like 4x4.7kΩ or 4x10kΩ .. see picture below ..
It ensures that the input is held "H" if switch is open ..

For info on DIP switch goto:
https://en.wikipedia.org/wiki/Dip_switch

Regards,
IanP
 

    Nanop

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Nanop

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Thanks for the info

How does the pull up resistor work?
since it only has 5 pins coming in/out.
 

flatulent

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One pin is the common that goes to Vcc and the other four pins are the free ends of the four resistors. The DIP switch connects the free ends to ground for a logic zero and leaves them floating for a logic one.
 

    Nanop

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