Uploaded February 2025 | Updated September 2026, 3 weeks ago

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In this video the different versions of TTL logic such as Schottky TTL Logic (74 S), Low Power Schottky TTL Logic (74LS) and Advanced Low Power Schottky TTL Logic (74ALS) are explained. And during the discussion, what design modifications were made in each version is also explained in detail.

the following topics are covered in the video:
0:00 Introduction
1:40 74 L and 74 H series TTL Logic
5:48 Schottky TTL Logic (74 S Series)
14:47 Low Power Schottky TTL Logic (74 LS Series)
18:36 Advanced Low Power Schottky TTL Logic (74ALS)
21:50 74 AS and 74 F series TTL Logic

This video explains, how TTL Logic evolved over the years and what design modifications were made in each series.

For more information related to TTL Logic, check the following videos:
1) Transistor Transistor Logic:
youtu.be/I74vWLGif_o?si=CqKpuqWFT7FJX4Mv

2) TTL NAND gate and NOR gates:
youtu.be/I74vWLGif_o?si=CqKpuqWFT7FJX4Mv

3) Open Collector and Tri-state TTL gates:
youtu.be/OF5QgmKb6f8

This video will be helpful to all the students of science and engineering in understanding the different versions of the TTL logic such as 74 S, 74 LS, 74ALS etc.


#allaboutelectronics
#logicfamily
#schottkyTTL
#TTLLogic


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