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

2 Answers  

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what is signal integrity and what is the use ?

0 Answers  

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why usb port communication is popular than parallel port,when serial ports are slower than parallel

6 Answers  

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What are the disadvantages of pwm control?

0 Answers  

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What is IMS? What is its significance?

7 Answers  

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Please provide details of the following standards :rs-23-c 802.3 x.25 802.11?

0 Answers  

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Why do we use distinct polarisation (UL-H:DL-V) while uplinking and downlinking rather than same (UL-H:DL-H)?

0 Answers  

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explain the bandwidth requirement of a voice signal of 2kHz and a binary data signal with a rate of 2kHz

1 Answers   Wipro,

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why we can give omega symbolto resistor? is there any spesific reason?

1 Answers  

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what is electronics

9 Answers   Google, L&T, Rocket Media,

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Why are active filters preferred

0 Answers  

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draw the block diadrame and explain the working of proximity sensor

2 Answers   Infosys,

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