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

2 Answers  

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What is Latch on?

3 Answers   NSN,

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what FET were we use its

0 Answers  

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Tell me does area of work only involve closed spaces?

0 Answers  

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what is different between multiplexer and demultiplexer?

12 Answers  

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why rs232 is used in uart when there are many rs devices like rs449 etc . what is the main advantage in using rs232

0 Answers  

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Hi Friends, I am preparing for Airport authority of India ,so please forward me question papers and questions that are generally asked in test. my email ID is :jitinkumar_micro@rediffmail.com

0 Answers  

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WHAT R THE DIFFERENT CONFIGURATIONS OF FPGA

0 Answers   BEL,

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What is RSSP in GSM???????

0 Answers   Videocon,

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what is main difference between gsm & cdma

0 Answers   Horizon Computers,

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tell me site from where i can download WREN N MARTIN GRAMMER BOOK...

5 Answers  

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what is mean by regulation?which component used?

1 Answers   Micromax, Novateur,

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