Adder and Subtractor using NAND Gates

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.