Latest Digital Technical Articles

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Fundamentals of Binary-Coded Decimal (BCD)

This article provides an introduction to the computational number system known as binary-coded decimal or BCD. This numeric encoding scheme is historically significant and still advantageous in certain applications.

July 07, 2023 by Robert Keim

Boolean Canonical Forms: Sum-of-Products and Product-of-Sums

Understanding two key Boolean canonical forms, the sum-of-products and the product-of-sums, is important in digital system design and optimization. We will introduce how to generate these forms and provide guidelines on when it is typically best to use each form.

June 30, 2023 by William Bahn

What is an Application-specific Integrated Circuit (ASIC)?

Indispensable for modern electrical engineering, application-specific integrated circuits (ASICs) form a diverse group of integrated circuits (ICs) that help designers to optimize sophisticated electronic devices.

June 14, 2023 by Robert Keim

Introduction to Double Date Rate (DDR) Memory

Learn about double date rate (DDR) memory key concepts and applications surrounding this digital communication technique, where two data words are transferred during one clock cycle.

February 03, 2023 by Robert Keim

Combinational Logic Circuit Design and Simulation Using Gates

Gate-level implementation of logic functions is limited by the gate fan-in. This article examines logic factoring, grouping, and level increases to implement logic functions with limited input gates.

December 29, 2021 by Dale Wilson

What Is Digital IC Design?

Learn the high-level overview of digital integrated circuit (IC) design.

December 02, 2020 by Jean-Jacques DeLisle

Restoring Digital Signals in Pass-Transistor Logic

This article takes a detailed look at the way in which pass-transistor logic degrades a signal and how this signal degradation can be remedied.

January 02, 2019 by Robert Keim

Implementing Sequential Circuitry with Pass-Transistor Logic

This article discusses the use of pass-transistor configurations in the design of gated latches.

December 31, 2018 by Robert Keim

Implementing Multiplexers with Pass-Transistor Logic

This article discusses the efficient multiplexers that can be created by using MOSFETs in a pass-transistor configuration.

December 27, 2018 by Robert Keim

Digital Design with Pass-Transistor Logic

This article presents efficient, pass-transistor-based implementations of important digital functionality.

December 26, 2018 by Robert Keim

Introduction to Pass-Transistor Logic

This article explores an alternative, and in some cases advantageous, approach to MOSFET-based implementation of digital logic functions.

December 17, 2018 by Robert Keim

Design Considerations for Digital VLSI

In this article, we discuss metastability, setup time, and hold time in designing a digital VLSI circuit.

April 26, 2017 by Mohammad Amin Karami