Digital Electronics

Digital Electronics is the counterpart of Analog Electronics and it deals with digital circuits that operate using digital or discreate signals. A typical digital circuit can be designed using basic elements like Transistors, Logic Gates, Flip-Flops or even using complex elements like microcontrollers, microprocessors and other computing chips.  This section consists of a huge collection of basic digital circuits with schematics and detailed explanation, to help you build digital electronic projects. You can also check out the Embedded Electronics section for advanced digital circuits that are designed using microcontrollers and microprocessors.

Nexperia has developed small and low profile 14, 16, 20, and 24 pin DHXQFN packages to provide a small footprint in standard logic devices. Measuring just 2 mm x 2 mm (14 pin), 2 mm x 2.4 mm (16 pin), 2 mm x 3.2 mm (20 pin), and 2 mm x 4 mm (24 pin), the 0.4 mm pitch, 0.45 mm height, these DHXQFN packages help in saving space on PCB.

The 16 pin…

Logic gates are the essential building blocks of digital circuits. These basic logic gates are used in Embedded Systems, Microcontrollers, Microprocessors, etc. Let us learn how to design the logic gates using VHDL in ModelSim. This tutorial is all about designing the basic logic gates using different VHDL modeling and their…

An Analog to Digital Converter (ADC) is a type of device that helps process real-world analog signals for digital systems. To understand real-world data like temperature, humidity, pressure, and position, we need transducers that convert these measurements into electrical signals. Since the majority of devices we use at the moment are digital, this conversion becomes…

QR code (Quick Response code) is a type of matrix barcode that contains information about the item to which it is attached, like location data, identifier, or a tracker that identifies a website or app, etc. It is a machine-readable optical label in the form of a 2D image with a unique pattern. To learn more about QR codes and how to generate a QR code, follow our previous…

An oscilloscope is the one instrument every electronics engineer reaches for when a circuit misbehaves. A multimeter tells you a single number, but an oscilloscope shows how a voltage changes over time: the shape of a PWM signal, the bounce of a switch, or the ripple on a sensor output. Bench oscilloscopes are expensive, though, and the best way to understand how one…

An Integrated Circuit or IC is a combination of many small circuits in a small package that together performs a common task. For example, an Operational Amplifier or 555 Timer IC is built by a combination of many Transistors, Flip-Flops, Logic Gates and other combinational digital circuits. Similarly, a Flip-Flop can be built by using a…

Display advertising plays a very important role in marketing, and there are several advertising methods like newspapers, posters, glow signboards, etc.. Still, digital LED display boards are getting popular nowadays because of their reliability and advantages. Although they are a little expensive, they are durable and customizable. P10 LED display boards have…

As many of us know an Integrated Circuit or IC is a combination of many small circuits in a small package which together performs a task. Like an Operational Amplifier or 555 Timer IC is built by a combination of many Transistors, Flip-Flops, Logic Gates and other combinational digital circuits. Similarly a Flip-Flop can be built by using a combination of Logic Gates and the…

As many of us know, an Integrated Circuit or IC is a combination of many small circuits in a small package which together perform a common task. An Operational Amplifier or 555 Timer IC is built by a combination of many Transistors, Flip-Flops, Logic Gates and other combinational digital circuits. Similarly, a Flip-Flop can be built by using a combination of Logic Gates and…

Relay logic control systems are truly a foundation of industrial automation, and electromagnetic relays are necessary to perform switching actions in these conversion systems. The relay logic circuits also utilise relays along with switches, motors, timers, actuators, and contactors to form ON/OFF control systems effectively. Though relay logic control proves to be effective…

Back in the ENIAC era, computers were more analog in nature and used very few digital ICs. Today an average Joe’s computer works with multiple voltage levels, people who had seen the SMPS of a CPU would have noticed that your computer requires ±12V, +5V and +3.3V to operate. These voltage levels are very important for a computer; a specific voltage determines the state of…

Frequency to voltage converter converts the frequencies or pulses to the proportional electrical output such as voltage or current. It is an important tool for electromechanical measurements where repeated events are occurring. So, when we provide a frequency across a frequency to voltage converter circuit, it will provide a proportional DC output. Here we are using KA331 IC…