Half Subtractor Using 2×1 and 4×1 Multiplexers | Multiplexer as universal logic

Опубликовано: 11 Май 2026
на канале: Bits&Facts
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Half Subtractor Using Multiplexers | 2×1 & 4×1 MUX Implementation Explained

In this video, you’ll learn how to implement a Half Subtractor circuit using 2-to-1 and 4-to-1 multiplexers, showcasing the use of MUX as a universal logic component in combinational logic design.

We break down both:
🔹 Difference (D = A ⊕ B)
🔹 Borrow (B = A′·B)
With truth tables, input-output analysis, and logical expressions.

📘 What’s Inside:

Half Subtractor Logic Basics

Realizing the Difference and Borrow outputs using 4×1 MUX

Optimized implementation using 2×1 MUX

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7 SEGMENT DISPLAY [ Part 1 ]:   • 7 Segment Display Explained | Truth Table ...  

RIPPLE CARRY ADDER or PARALLEL ADDER:   • Parallel Adder | Ripple Carry Adder | Digi...  

HALF ADDER AND HALF SUBTRACTOR:   • Half Adder & Full Adder Explained  

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NOR GATE AS UNIVERSAL GATE:   • NOR GATE AS UNIVERSAL GATE | BASIC GATES U...  

LOGIC GATES EXPLAINED:   • LOGIC GATES  EXPLAINED | UNIVERSAL GATES |...  

BINARY ADDITION:   • Binary addition | Number system  

BINARY SUBTRACTION:   • Binary subtraction | Number system  

BINARY MULTIPLICATION:   • Binary Multiplication | Number system  

BINARY DIVISION:   • Binary division | Number system| Digital e...  

1's AND 2'S COMPLEMENTS:   • 1's and 2's complement | sign magnitude fo...  

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Time stamps:
0:00-Intro
0:51- Half Subtractor using 4×1 Mux
2:42- Half Subtractor Using 2×1 Mux



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