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

2 Answers  

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Explain what is difference between fixed-bias circuit & self-bias circuit?

0 Answers  

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HI, i am jayakumar, a B.E graduate of ECE. i have applied for officer trainee written test exam which is going to be conducted by hindustan petroleum corporation limited. currently the writen test of it, has been postponed from febuary to someother day without releasing the date. i am searching for question related to the writen test that whould be asked during the event of the test. if you possess the questions, pls email it to this id jai_pkp81@yahoo.co.in

0 Answers   Kalam Software,

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Why half-wave rectifiers are generally not used in dc power supply?

0 Answers  

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SIR CAN U GIV TOPICS TAT COVERED IN JR.EXECUTIVE (ELECTRONICS) INTERVIEW N ALSO TIPS TO CRACK THE INTERVIEW PLZ

0 Answers   Airtel,

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In 8086 why even address location takes two bus cycles whereas odd address location takes only one bus cycle??

2 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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which taype question pattern in hr round in telecom feild.

0 Answers   Huawei,

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What is faithful amplification?

0 Answers  

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why do we use soft starters

0 Answers   RBM,

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Why 8051 is called as 8051 plz send ans at swatimehta5487@gmail.com

4 Answers  

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what is the basic steps for designing an ups,inverters, and battery connections for series and parrallel connections in ups

0 Answers   Godrej,

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