Digital Electronics: Principles and Applications has been updated, with new coverage of microcontrollers, memory, interfacing, new self-test questions for students, and more. A list of chapter-by-chapter changes from the author is included below.

Chapter 1: Digital Electronics

• Added digital application including automotive fuel indicators, vehicle speed sensors and engine control module.
• Wrote new section on where digital circuit applications.
• Added information on logic probe use in troubleshooting.
• Revised instruments section.

Chapter 2: Numbers We Use in Digital Electronics

• Wrote new subsection on applications of encoders and decoders.

Chapter 3: Logic Gates

• Updated information on practical chips including lower voltage ICs.
• Expanded most Self-Test sections.

Chapter 4: Combining Logic Gates

• Expanded several Self-Test sections.
• Revised material on data selectors.

Chapter 5: IC Specifications and Simple Interfacing

• Added new information on low voltage ICs.
• Added many application assignments on interfacing.

Chapter 6: Encoding, Decoding and Seven-Segment Displays

• Updated applications of the Gray code including the shaft encoder and new information on the quadrature encoder.
• Updated information on display technologies.

Chapter 7: Flip-Flops

• Added application of R-S latch.
• Added new detailed application of a latched encoder-decoder system.

Chapter 8: Counters

• Expanded Self-Test questions.

Chapter 9: Shift Registers

• No changes necessary for this chapter.

Chapter 10: Arithmetic Circuits

• Expanded several Self-Tests.
• Updated binary subtraction section.

Chapter 11: Memories

• Update overview of memory section.
• Update nonvolatile R/W memory section
• Update memory packaging section.
• Expanded bulk storage section including more information on USB flash drives.
• Added internet research topics.

Chapter 12: Simple Digital Systems

• Expanded Self-Test and Critical Thinking Questions.
• New information on distance sensing with coverage of several sensor technologies.
• A DIY application demonstrating a distance sensor triggering the timed operation of a stepper motor.

Chapter 13: Computer Systems

• Update the microcomputer section.
• Update the data transmission section.
• Revise the microcontrollers section.
• New application of a microcontroller with photo input and servo motor output.

Chapter 14: Connecting with Analog Devices

• Expanded Self-Test questions.