Adder and Subtractor using NAND Gates

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Power Low power, suitable for logic level (TTL/CMOS); typically <500 mW.
Usage Educational demonstration and digital logic training in arithmetic circuit design.
Voltage Operates on standard digital logic supply (typically 5V DC).
Display LED indicators for output bits (sum/difference, carry/borrow).
Product Type Digital logic circuit model Adder/Subtractor trainer.
Material Epoxy PCB, plastic, standard electronic components (ICs, resistors, LEDs).
Design Breadboard/PCB with clear NAND gate based circuit traces for adder/subtractor operation.
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Adder and Subtractor using NAND Gates Price And Quantity

Minimum Order Quantity 1 Unit

Connectivity Banana/patch connectors for input and power signals.
Operation Modes Addition mode (control=0), Subtraction mode (control=1) for binary operations.
Input Two binary numbers (A and B), one control (mode) input for choosing Add or Subtract operation.
Mounting Table-top, with non-slip feet for stability during demonstration.
Instruction Manual Supplied with user guide detailing circuit theory and experimental setups.
Control Interface Manual switches for input bit and operation mode selection.
Serviceability All components replaceable; PCB labelled for educational clarity.
Expandability Breadboard/PCB allows for further combinational/digital circuit experiments.
Signal Indication Output status shown by on-board color LED array.
Ambient Temperature Range Operates in standard classroom/laboratory environments (10C 40C).
Logic Family Compatible with standard TTL/CMOS NAND ICs (e.g., 7400 series).
Circuit Type Implemented exclusively using NAND logic gates.
Educational Value Demonstrates universal logic gate use in arithmetic circuit synthesis.
Output Signals Sum/Difference bit, Carry/Borrow bit indicated via LEDs.

Adder and Subtractor using NAND Gates Product Specifications

Material Epoxy PCB, plastic, standard electronic components (ICs, resistors, LEDs).
Weight Approximate 200 grams (including components and base).
Design Breadboard/PCB with clear NAND gate based circuit traces for adder/subtractor operation.
Voltage Operates on standard digital logic supply (typically 5V DC).
Usage Educational demonstration and digital logic training in arithmetic circuit design.
Accuracy Digital, high logic precision; Output matches expected Boolean results for given binary inputs.
Display LED indicators for output bits (sum/difference, carry/borrow).
Charging Time Not required; operates instantly as per digital circuit logic propagation delay.
Power Source External DC supply or laboratory power pack (5V).
Product Type Digital logic circuit model Adder/Subtractor trainer.
Illuminant LEDs used as visual indicators for circuit output.
Power Low power, suitable for logic level (TTL/CMOS); typically <500 mW.
Dimension (L*W*H) Prototype PCB, approximate 10 cm x 8 cm x 3 cm.
Detector Not applicable; Functionally realized with discrete NAND gate logic.

Connectivity Banana/patch connectors for input and power signals.
Operation Modes Addition mode (control=0), Subtraction mode (control=1) for binary operations.
Input Two binary numbers (A and B), one control (mode) input for choosing Add or Subtract operation.
Mounting Table-top, with non-slip feet for stability during demonstration.
Instruction Manual Supplied with user guide detailing circuit theory and experimental setups.
Control Interface Manual switches for input bit and operation mode selection.
Serviceability All components replaceable; PCB labelled for educational clarity.
Expandability Breadboard/PCB allows for further combinational/digital circuit experiments.
Signal Indication Output status shown by on-board color LED array.
Ambient Temperature Range Operates in standard classroom/laboratory environments (10C 40C).
Logic Family Compatible with standard TTL/CMOS NAND ICs (e.g., 7400 series).
Circuit Type Implemented exclusively using NAND logic gates.
Educational Value Demonstrates universal logic gate use in arithmetic circuit synthesis.
Output Signals Sum/Difference bit, Carry/Borrow bit indicated via LEDs.

Adder and Subtractor using NAND Gates Trade Information

Supply Ability 5 Unit Per Week
Delivery Time 4-5 Days
Main Export Market(s) Australia, Central America, North America, South America, Asia, Western Europe, Middle East, Africa
Main Domestic Market All India

Product Description

Adder & Subtractor using NAND Gates

Objective :To verify the truth table of Digital Half Adder, Half Subtractor, Full Adder & Full subtractor using NAND gates.

Features :Instrument comprises of DC Regulated Power Supply 5VDC/150mA for logic inputs, 3 SPDT switches provided for selecting logic 1 & logic 0, 3 NOT gates for providing compliments of the logic inputs, 2 Red LED output indicator, circuit diagram printed for 5 three input NAND gates, 3 two input NAND gates & 1 four inputs NANDgates & their respective ICs placed inside the cabinet & connections brought out at sockets.

Universal NAND Gate Arithmetic Design

Built exclusively with NAND logic gates, this module illustrates how fundamental arithmetic circuitsadders and subtractorscan be achieved from a single gate type. The design supports both TTL and CMOS logic levels, offering compatibility with standard 7400 series ICs. Clear circuit traces and labels make identification and troubleshooting straightforward, enhancing the educational experience.

Interactive Operation and Output Visualization

The device provides manual switches for inputting bits and selecting the addition or subtraction mode. Output statesincluding sum/difference and carry/borroware instantly reflected using bright color LEDs, making it easy to observe logic outcomes. The module features stable table-top mounting, non-slip feet, and standard connectors, ensuring a reliable and user-friendly demonstration platform.

Expandability and Serviceability for Learning

With a breadboard/PCB layout that enables further customization, users can expand experiments beyond basic arithmetic. All components are easily replaceable and clearly labelled, supporting both rapid servicing and learning of digital hardware assembly. This product is ideal for educational labs where flexibility and clarity are prioritized.

FAQs of Adder and Subtractor using NAND Gates:

Q: How does the adder and subtractor circuit operate using only NAND gates?

A: The circuit implements binary addition and subtraction exclusively with NAND gates by arranging them into configurable network structures. NAND gates are universal, allowing them to mimic other logic gate functions necessary for arithmetic computations. This demonstrates the flexibility and fundamental role of NAND gates in digital logic.

Q: What steps are required to switch between addition and subtraction functions?

A: To toggle between addition and subtraction, use the provided manual mode switch on the module. Setting control to 0 enables addition, while 1 activates subtraction. The circuit automatically adjusts its logic path using NAND gate structures to yield the corresponding sum/difference and carry/borrow outputs.

Q: Where is this module typically used and who can benefit from it?

A: This Adder and Subtractor circuit is used primarily in educational settings such as school and university laboratories in India for digital electronics training. Students, teachers, and researchers benefit by gaining practical insights into logic circuit synthesis and arithmetic computation. Its design aids both demonstration and hands-on experimentation.

Q: What process ensures output accuracy in sum/difference and carry/borrow indications?

A: The output indicators, driven by precision digital logic, display results via on-board LEDs. The circuit is designed to match the expected Boolean outcomes as determined by the binary inputs and operation mode. The reliability is inherent in the constructs of the NAND-based circuitry and the high-precision IC components used.

Q: When is maintenance or component replacement necessary, and how is it done?

A: Maintenance is required only if a component fails or for routine educational replacement exercises. All parts are socket-mount or clearly labelled for easy identification on the PCB. Components can be quickly swapped with minimal tools, making servicing accessible and straightforward for students and instructors alike.

Q: How is power supplied, and what are the requirements for safe and optimal operation?

A: Power is supplied via standard 5V DC from an external laboratory power pack or DC adaptor, matching TTL/CMOS logic requirements. The circuit is designed for low power consumption (typically below 500 mW), ensuring safe and efficient operation within a temperature range suitable for classrooms and labs.

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