Textbooks

1. Digital Design
BY: Morris Mano and Michael Ciletti - Chapter 6 (Sequential Logic)
Comprehensive coverage of counter circuits, asynchronous and synchronous counters, and modulo-N counters.

2. Digital Logic and Computer Design
BY: Morris Mano - Chapter 5
Fundamental concepts of sequential circuits including flip-flops, counters, and state machines.

3. Digital Electronics: Principles, Devices and Applications
BY: Anil K. Maini - Chapter 8
Practical approach to sequential circuit design with detailed analysis of counter implementations.

4. Digital Systems: Principles and Applications
BY: Ronald J. Tocci, Neal S. Widmer, and Gregory L. Moss - Chapter 7
Excellent coverage of counter types, applications, and troubleshooting techniques.

5. Fundamentals of Digital Logic with VHDL Design
BY: Stephen Brown and Zvonko Vranesic - Chapter 8
Modern approach to sequential circuit design including counter synthesis and optimization.

Video Lectures and Online Courses

NPTEL Courses:

• Digital Circuits - IIT Kharagpur
• Computer Organization - IIT Madras
• Digital Logic Design - IIT Roorkee

MIT OpenCourseWare:

• Introduction to Digital Systems - MIT
• Computation Structures - MIT

YouTube EDU Channels:

• Neso Academy - Digital Electronics - Complete digital logic course
• GATE Lectures by Ravindrababu Ravula - Digital Logic Design

Research Papers and Articles

1. Design and Analysis of High-Performance Counter Circuits
BY: S. K. Nandy and S. Hariharan
IEEE Transactions on Very Large Scale Integration (VLSI) Systems, 1998

2. Low-Power Counter Design Techniques for Digital Systems
BY: A. P. Chandrakasan and R. W. Brodersen
IEEE Journal of Solid-State Circuits, 1995

3. Modulo-N Counters: Design and Implementation Strategies
BY: K. J. Hintz and D. P. Tabak
IEEE Transactions on Computers, 1992