This document provides steps for designing several types of counters using the IC 7490 integrated circuit, including binary up counters, binary down counters, and binary up-down counters without sequential logic. It also describes how to create a MOD N counter and includes a binary counter with parallel load functionality.

1. COUNTER IC
7490

6. MOD 18 Counter using IC 7490

8. How we can design Mod 100 counter
using IC 7490?

10. Binary up Counter Without Seq. Logic Design Steps

12. Binary Down Counter Without Seq. Logic Design Steps
A count down binary counter can be constructed except that
the inputs to the AND gates must come from the
complemented outputs. instead of the normal outputs, of the
previous flip-flops.

13. Binary UP-Down Counter Without Seq. Logic Design Steps

15. Binary Counter with Parallel Load

28. Design MOD N counter