What is Pull up Resistor and Pull Down Resistor ? How to select the pull-up resistor value ?

In this video, what is pull-up and pull-down resistor and how to select the value of pull-up resistor for specific application has been explained in detail (using the calculations).

The following topics are covered in the video:
0:00 What is Pull-up and Pull-down Resistor ?
5:20 Applications of Pull-up Resistor
8:57 How to select the pull-up resistor value for specific application ?

The link for the other useful videos:
1) What is Buffer and Tri-State Buffer ?

2) Difference between Latch and Flip-Flop ?

What is Pull-up and Pull-down resistor ?

The pull-up resistor pulls up the voltage of the digital pin to logic HIGH and it prevents it from the floating condition (when the pin is interfaced with a switch).
The pull-up resistors are often used with the open collector gates and open collector ICs and they are important part of the I2C protocol.

The pull-down resistor works exactly opposite to the pull-up resistor. It pulls down the voltage of the digital pin to logic LOW and prevents it from the floating condition.

While using these pull-up and pull-down resistor in any circuit, the selection of the proper value of the resistor is also very important.
In this video, how to select the value of pull-up resistor for the specific application is explained using the calculations.

This video will be helpful to all the students of science and engineering in understanding the pull-up and pull-down resistors and how to select the pull-up resistor for the specific application.

#ALLABOUTELECTRONICS
#PullupResistor
#ElectronicsBasic

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[ALLABOUTELECTRONICS]

The link for the other useful videos:

1) What is Buffer and Tri-State Buffer ?

2) Difference between Latch and Flip-Flop ?

[sam-halliday-disney]

thank you for including the calculations for min and max resistor sizes, that is missing from many videos and is a critical piece of information. You cheated by using a transistor switch with a known mA draw, now do it for a physical switch that would lead to a short circuit and sparks :-)

[poojashah]

Waiting for the best video of pull up and pull down resistor. And it is here. Thank you so much 🌼🌼

[ajx]

3 minutes in and it has already clicked for me. Thanks!

[Friendroid]

I have just discovered your channel and the video content and presentation is very, very good! Thank you for your help!

[gopikrishnanm]

Still how many lectures are pending in digital electronics sir? Currently am watching your network analysis videos. Your content is really great and easy to understand.

[onlyeyeno]

@ALL ABOUT ELECTRONICS
Many thanks for taking the time and effort of making and sharing these excellent videos and sharing Your knowledge !!!
Best regards.

[Omni-Qadhaya]

Very Nice…. This has served as a great catch up !!

[asaizanm]

tq sir.. simple explaination as always.

[oriy]

Thank you very much.🙏🏻
Keep it up.👍🏻🌹

[ShubhamYadav-rcg]

Sir from where we can get you notes of pull and pull down lecture is excellent but you had said som many things ..

[biengHamun]

Hello sir. I was wondering if u could make videos on counters. That would be really helpful. Thank you.

[parasshukla]

dont we consider VIL value of logic gate in case of Rp min calculation. if not, then why ? @ALLABOUTELECTRONICS

[dominikbaricak]

3:20... why input pin is equal to logic 0 when logic gate is connected parallel? Parallel means that everywhere is the same voltage so i dont understand how voltage isnt here.

[carsstuff]

Too low of pull up also can introduce problem of logic level when the system cannot source that much current. Also you will have Rdson from mosfet forming a voltage divider to the PU resistor.