TTL NAND Gate with Totem Pole Output: Circuit and Working

[@EngineeringFunda]

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[@pratikachwale3459]

thank you so much sir please keep making videos like this, it helps a lot to us engineering students

[@EngineeringFunda]

I wish ... I could help in all possible ways.

[@EngineeringFunda]

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[@kittusk4684]

If I show this video to our teacher he will learn from you .....😶

[@EngineeringFunda]

May be 😀🙏

[@shadowbk2298]

My teacher already sending his video 🙂🙂

[@TheStoicPath_003]

Brother I want to give a Ha Ha on your comment🤣🤣🤣 True fact

[@blackmamba6646]

Brilliant explanation!

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[@RajKumar-jy7fv]

Why this TTL named as Totem pole

[@HDTM211]

Thank you very much for this!

[@EngineeringFunda]

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[@khushichudasama7468]

Thankyou sir 🙏🌼

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[@rakitarakitaooo9189]

Very nice explaination sir. Thank you!!

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[@rakitarakitaooo9189]

@@EngineeringFunda sure sir!!😊

[@anandg9617]

Excellent sir

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[@snjy1608]

00:00 TTL NAND gate with Two Tempo Output 01:50 A TTL NAND gate circuit with three sections 03:51 The circuit design of transistor T1 and its working in NAND gate configuration 05:49 Explaining transistor circuit behavior with active low inputs 07:47 Explanation of triggering and voltage requirements for T2, T3, and T4. 09:37 Logic 1 output when any input is logic 0 11:34 Understanding transistor t4 turning on conditions 13:37 Passive pull-up resistor is replaced with two-tempo circuit to improve the fan out and noise margin.

[@EngineeringFunda]

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[@shivam-gy1yi]

Thanks for help sir 🙂

[@EngineeringFunda]

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[@raghavaraghava2480]

Good explanation

[@EngineeringFunda]

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[@raghuamgothu1666]

Superb sir

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Your Appreciations, care and share matters a lot to me. #EnginneringLove. All the subjects playlist of Engineering Funda is available in comment section. Share it with your friends to support us. Your positive comments motivates me and person like me get boosted by my students feedback. Thanks and welcome 🙏

[@sauravrajmnitjaipur5664]

00:00 TTL NAND gate with Two Tempo Output 01:50 A TTL NAND gate circuit with three sections 03:51 The circuit design of transistor T1 and its working in NAND gate configuration 05:49 Explaining transistor circuit behavior with active low inputs 07:47 Explanation of triggering and voltage requirements for T2, T3, and T4. 09:37 Logic 1 output when any input is logic 0 11:34 Understanding transistor t4 turning on conditions 13:37 Passive pull-up resistor is replaced with two-tempo circuit to improve the fan out and noise margin. Crafted by Merlin AI.

[@EngineeringFunda]

It is wonderful outlines

[@shrutimukherjee8378]

Thnku so much

[@EngineeringFunda]

All the subjects playlist of Engineering Funda is available in comment section. Share it with your friends to support us. Your positive comments motivates me and person like me get boosted by my students feedback. Thanks and welcome 🙏

[@dineshsrikar8758]

Tq sarvodu

[@EngineeringFunda]

Your positive comments motivates me. Teachers like me just wants positive comment from student. Love from you guys means a lot to me. My goal is to create largest community of engineers in entire globe. Please help me by sharing this playlist with your friends.

[@venkyraj1925]

100/100 keep gng

[@EngineeringFunda]

Your positive comments motivates me. Teachers like me just wants positive comment from student. Love from you guys means a lot to me. My goal is to create largest community of engineers in entire globe. Please help me by sharing this playlist with your friends.

[@pmsece]

Thank you sir for the excellent explanation... could you please tell me why the voltage across T3 is 0.7 V when both T2 and T3 is ON? Sir why the voltage is 0.2 V (Vce) and 0.7 V (Vbe)?

[@EngineeringFunda]

It is standard voltage across silicon pn junction. For Vbe it is like ON state voltage across diode which is 0.7Volts

[@ahmetciftci9035]

3:51 you should say OFF not ON

[@MushtaqAhmed-bh2cj]

I like your explanation. I have exam on 25th, I need TTL Nor gate please

[@EngineeringFunda]

It is there in my playlist of digital electronics

[@pranjalsingh7132]

neta neta hr koi khta.. tisri manjil pe rhta... kuch smjh nhi aaya sir 25 baar video dekha hu.. 5 ghante hogye gaand ghiste abhi 26vi baar dekhne jaa rha hu.. thank you for this video

[@AbhishekSingh-up4rv]

Very nice explanation sir!! Just a small doubt...how you are saying that speed of charging of capacitor is increasing in this circuit. That was the main part i beleive...could you explain it again pls in other video?

[@EngineeringFunda]

Speed of charging depends upon resistance of path

[@jayesh1891]

👍👍

[@sweekardahal9811]

At 9: 36 , This is seriously an error for 1st case when any input is low , nand outputs high . Then at last stage , you used kvl and we have vcc = 5v which is logic 1 . How can Vo be equal to 5volt(logic 1) when you did Vo = Vcc - IcRc4 - Vc4 (sat) - Vd ?? Please explain me this .

[@sooryanshsingh2957]

Any output voltage above 2.7V is considered to be a Logic High Volate for OUTPUT DEVICES.

[@shivam-gy1yi]

👍

[@rahuljoshi7031]

When t2 is on and t3 is also on ,then why you take 0.2 and 0.7 for finding b4

[@primevigilante7259]

is this the same type of nand gate configuration that is used in IC7400?

[@jaiminkotecha4460]

Yes

[@nirosinip439]

Why saturation voltage is 0.2 v?

[@BeerusOPP]

sir i have a dobut in TTL circuit the need of the totem pole connection is

[@abdullah_alloun]

What is the importance of d1 diode?

[@p.krajput0601]

Why in last case (A-1;b-1;c-1)we can not drive voltage from Vcc?? If we drive voltage from Vcc then T4 will be on.

[@neeraj8851]

Sir what is work of diode please tell

[@digambar9981]

Sir why R4 should take low

[@sangames5946]

Is this beneficial for hsc board students?

[@EngineeringFunda]

If it is in your course then definitely yes

[@remyavarghese9895]

Why cb junction is rb in first transistor

[@rahulmourya6938]

Sir here pull up resistance is Rc2 I guess just conform it

[@shoebshaikh3713]

Sir why saturation is 0.2 V across Vce

[@EngineeringFunda]

For silicon material it like that

[@pushanpaul1305]

why there is a diode?

[@nikilkhan7804]

@@pushanpaul1305 Acts as a delay to avoid continuous switching

[@eyupyaka8572]

Could you summarize why we are using totem pole?

[@EngineeringFunda]

To get higher gain for faster operation

[@eyupyaka8572]

@@EngineeringFunda thank you for this information but I need more details :( Could you recommend any source?