Sample Digital Circuit Diagrams

Tutorials and Solutions:

Video Guide: Digital Electronics

Solutions: Digital Electronics for ConceptDraw DIAGRAM

Sample 1: 2 to 4 Line Single Bit Decoder

Digital Electronics circuit sample: This sample shows a 2-to-4 line single bit decoder with a truth table and minterm equations. A binary decoder has a wide variety of applications and is mainly applied in the form of the standardized IC. Common applications include data multiplexing, data demultiplexing, instruction decoding, memory address decoding, and more.

This drawing is created using ConceptDraw DIAGRAM diagramming software enhanced with Digital Electronics solution from ConceptDraw Solution Park.

Sample 2: 4 to 1 Multiplexer (MUX)

Digital Electronics circuit sample: This digital electronic logic diagram shows a 4 to 1 multiplexer (MUX) using 4 inputs AND, 3 inputs OR, 2 NOT gates. The inputs are shown as I0, I1, I2, I3; the output X depends on the selector lines S0 and S1. A multiplexer selects a single input signal among several analog or digital signals and sends it to a single output line. That is why it is also called data selector.

This drawing is created using ConceptDraw DIAGRAM diagramming software enhanced with Digital Electronics solution from ConceptDraw Solution Park.

Sample 3: 4 to 2 Priority Encoder

Digital Electronics circuit sample: This sample shows a single bit 4 to 2 priority encoder. It is a circuit or algorithm used to compress multiple binary inputs into outputs, at this the number of outputs is smaller than the inputs. The inputs I0, I1, I2, I3 are shown in a diagram. The output V reveals if the input is valid. Sometimes, the priority encoders are connected in arrays and form larger encoders. It is a circuit or algorithm used to compress multiple binary inputs into outputs, at this the number of outputs is smaller than the inputs. It allows handling the multifarious input configurations.

This drawing is created using ConceptDraw DIAGRAM diagramming software enhanced with Digital Electronics solution from ConceptDraw Solution Park.

Sample 4: Boolean Algebra Operations

Digital Electronics circuit sample: This sample shows multiple representations of Boolean algebra operations. You can observe four figures showing the principles of use of the truth tables, logic gates, de Morgan equivalents, and Venn diagrams. Boolean algebra or logical algebra is a part of mathematics focused on operating with binary variables taking one of two values True (1) or False (0). The main operations include conjunction (AND), disjunction (OR), exclusive OR (XOR), and negation (NOT). The application of Boolean algebra is widespread in the process of developing different kinds of digital electronics.

This drawing is created using ConceptDraw DIAGRAM diagramming software enhanced with Digital Electronics solution from ConceptDraw Solution Park.

Sample 5: Flip Flop Logic Circuit

Digital Electronics circuit sample: This logic circuit diagram shows a flip-flop logic circuit. Flip-flops are the elements of sequential logic in electronics and have two stable states (0 or 1). The represented trigger has the SR ("set-reset") type that influences its behavior. It consists of a pair of cross-coupled logic gates. The outputs marked Zn are in a constant state.

This drawing is created using ConceptDraw DIAGRAM diagramming software enhanced with Digital Electronics solution from ConceptDraw Solution Park.

Sample 6: Four Bit Majority Circuit

Digital Electronics circuit sample: This logic circuit diagram shows a 4-bit majority circuit. A majority gate is a logical gate used in Boolean circuits. The 4-input majority gate has 0 output only when two or more of its inputs have 0 value, and similarly in the case of value 1. The 4-bit majority circuits have a wide application. The use of the majority function provides majority logic decoding and allows the implementation of errors correction.

This drawing is created using ConceptDraw DIAGRAM diagramming software enhanced with Digital Electronics solution from ConceptDraw Solution Park.

Sample 7: IMPLY Gate from NANDs

Digital Electronics circuit sample: This logic circuit diagram shows an IMPLY gate made of NAND gates. IMPLY gate is a digital logic gate, that implements a logical conditional between inputs. NOT-AND (NAND) gate is also a logic gate, it produces a false output only if all its inputs are true and vice versa. Typically, NAND gates include two or more inputs and are available as integrated circuits. NAND gates are constructed using transistors and junction diodes.

This drawing is created using ConceptDraw DIAGRAM diagramming software enhanced with Digital Electronics solution from ConceptDraw Solution Park.

Sample 8: Logic Circuit Example

Digital Electronics circuit sample: This digital electronic diagram shows a logic circuit containing XOR, NAND, and NOR gates. It is an example of the combinational logic circuit and the output depends on the inputs. Moreover, any changes in input signals cause changes in the output. The vacuum tubes, pneumatic logic, optics, fluidic logic, electromagnetic relays, multiplexers, registers, microprocessors, and more elements are also used to build the logic gates.

This drawing is created using ConceptDraw DIAGRAM diagramming software enhanced with Digital Electronics solution from ConceptDraw Solution Park.

Sample 9: MUX from 3 State Buffers

Digital Electronics circuit sample: This diagram shows a multiplexer (MUX) or a data selector realized from 3-state buffers and AND gates. It is an electronic device, which runs selection from analog or digital input signals. MUX includes several signal inputs, one or more control inputs, and one output. In this diagram, Sel1 and Sel2 are the control inputs. The labels 00, 01, 10, and 11 indicate the turn-on code. A multiplexer makes possible the use of one device or resource for several input signals.

This drawing is created using ConceptDraw DIAGRAM diagramming software enhanced with Digital Electronics solution from ConceptDraw Solution Park.

Sample 10: NAND Gate from NORs

Digital Electronics circuit sample: NAND gate is constructed using transistors and junction diodes and is an integrated circuit in transistor-transistor logic. NAND gate has two or more inputs and produces the output complementing the AND gate. The output is false only when all inputs are true. NOR gate is a digital logic gate, it implements logical NOR and is the negation of the OR operator. The output result of the NAND gate is true if both the inputs to the gate are false. Any Boolean function can be implemented by using a combination of NAND and NOR gates.

This drawing is created using ConceptDraw DIAGRAM diagramming software enhanced with Digital Electronics solution from ConceptDraw Solution Park.

All samples are copyrighted CS Odessa's.

Usage of them is covered by Creative Commons “Attribution Non-Commercial No Derivatives” License.

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