Digital Electronics (BOE310) important topics for AKTU – unit-wise
Topics are ranked by how many times AKTU asked them across 10 papers. Finish the "very likely" topics first, then the top topics of each unit.
High-probability Digital Electronics topics
- Digital Logic Families (Unit 5: Memory, Programmable Logic and Digital Logic Families) – asked 38 times in 2022, 2023, 2024, 2025, 2026
- Latches and Flip Flops (Unit 3: Sequential Logic and Its Applications) – asked 32 times in 2022, 2023, 2024, 2025, 2026
- Adders and Subtractors (Unit 2: Combinational Logic) – asked 22 times in 2022, 2023, 2025, 2026
What to cover inside these topics
- Fan In Fan Out Noise Margin (part of Digital Logic Families)
- ECL and CMOS Circuits (part of Digital Logic Families)
- TTL and DTL Circuits (part of Digital Logic Families)
- Characteristic Equations Flip Flops (part of Latches and Flip Flops)
- Flip Flop Conversion (part of Latches and Flip Flops)
- SR and D Latch (part of Latches and Flip Flops)
- Half and Full Adder (part of Adders and Subtractors)
- BCD Adder (part of Adders and Subtractors)
- Serial and Parallel Adders (part of Adders and Subtractors)
Most asked Digital Electronics topics in each unit
- Unit 1 (Digital System, Binary Numbers and Logic Simplification): Karnaugh Map Simplification – 17 times; NAND NOR Implementation – 13 times; Number Systems and Arithmetic – 12 times
- Unit 2 (Combinational Logic): Adders and Subtractors – 22 times; Multiplexer and Demultiplexer – 15 times; Magnitude Comparator – 7 times
- Unit 3 (Sequential Logic and Its Applications): Latches and Flip Flops – 32 times; Shift Registers – 9 times; Synchronous Counters – 8 times
- Unit 4 (Synchronous and Asynchronous Sequential Circuits): Synchronous Circuit Analysis – 15 times; Synchronous Circuit Design Procedure – 9 times; Asynchronous Circuit Analysis – 8 times
- Unit 5 (Memory, Programmable Logic and Digital Logic Families): Digital Logic Families – 38 times; RAM and ROM – 16 times; PLA and PAL Devices – 10 times