Combinational Circuit and its exploration
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The document discusses sequential and combinational circuits, highlighting that sequential circuits rely on both present and past outputs through memory elements, while combinational circuits depend solely on current inputs. It explains the role of flip-flops as fundamental components that store single bits of binary data and lists various types of flip-flops including S-R, J-K, D, and T flip-flops. Key differences between the two circuit types include the presence of feedback paths and memory elements, as well as design complexity.
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Combinational Circuit and its exploration
- 2. Combinational Circuits This sequential circuit contains a set of inputs and outputs. The outputs of sequential circuit depends not only on the combination of present inputs but also on the previous outputs. Therefore sequential circuits contain combinational circuits along with memory elements. E.g. Flip-flops, Latches, Counters, Registers etc.
- 3. Combinational Circuits Sequential Circuits Outputs depend only on present inputs. Outputs depend on both present inputs and past outputs. Feedback path is not present. Feedback path is present. Memory elements are not required. Memory elements are required. Clock signal is not required. Clock signal is required. Easy to design. Difficult to design.
- 5. Flip-Flop • A flip-flop is a sequential digital electronic circuit that can store single bit (1-bit) of binary data. • Flip-flops are the fundamental building blocks for registers and memory devices. Types of Flip–Flops •S-R flip-flop •J-K flip-flop •D flip-flop •T flip-flop