Essential Logic Families - Workbench Wednesdays

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0:00 // Essential Logic Families
1:32 // 7400-Logic Overview
2:51 // Measurement Setup
3:39 // Measurement #1 - Input Threshold
5:38 // Measurement #2 - TTL Output
7:36 // Measurement #3 - Frequency
8:21 // Measure #4 - Transition Time
9:31 // Measurement #5 - Propagation Delay
10:32 // Conclusion

[ElvizzV]

Great... *now* you tell me? I literally yesterday ordered a LS JK-flipflop, when it now seems I should have ordered an HC type 😄
Thanks for the good video and explanations!

[OscopeWizard]

Had me laughing at 2:46. I had all those questions.

[DasIllu]

I just love the sound of "74xx". It has a certain ring to it.




Yeah i show myself out, thank you :D

[perseverance]

CMOS outputs can drive TTL inputs, TTL outputs can have problems driving CMOS inputs. HCT inputs CAN be driven with BOTH CMOS & TTL outputs. I use HCT & AHCT 74 series fairly universally mixing them with 74F, 74ALS, & 74LS though if I have the same types available I do not mix bipolar & CMOS devices even though I could.

[williamcollins]

Anyone that starts with "Let's go measure" has my vote

[kamals]

Any logic switches? Like relay's NO & NC

Input selector ic

Like 1 input pin & select 2 other pin(A & B)

If high 1 to A
If low 1 to B

[TheBizzyBScience]

can you measure these values on a cheap scope?

[namuzed]

Just getting into electronics and bought a bunch of logic chips. I just assumed the LS were the best option... *sigh*

[Marc_Miller]

Thumbs up for getting triggered. :P
Thank you James, good info.

[amirhosseinali]

cmos ics are 3 times more expensive than ttl in our country 😂😂😂