why we need external pull up for port 0 of micro-controller 8051?

2 Answers  

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i get noise in radio when i switch on tubelight, the radio is working in dc adapter.but when in battery , raio dont get noise.is there anyway to implement any circuit so that the noise never comes.i tried lots of capacitor. no way to prevent it.

3 Answers  

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what is the base of telephone?

1 Answers  

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what are the test requirment fot protocol testing (for SS7,SIP)

0 Answers   Mind Tree,

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What is effective communication?

0 Answers   Bhel,

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How range and azimuth is calculating in RADAR

0 Answers  

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Why use -48v power to BTS

0 Answers  

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What are all the connectors used in the GSM Architecture like Abis is used between BTS and BSC, I need it in detail.

1 Answers   RRB,

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wat book i can refer to succeed in isro exam ...and where i can get the last 5 years questions

0 Answers  

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WHAT IS THE PRINCIPLE OF RADAR

2 Answers   BEL,

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in ne555 ic timer circuit ne refers what?

3 Answers   Infosys,

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How rectangular filter are practically made?

0 Answers  

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