CD4018 Presettable Divide-by-N Counter

The CD4018 is a presettable divide-by-N counter IC, a Johnson-style counter whose division ratio can be preset via external connections, letting it divide an input clock by a configurable value.

This presettable structure gives more flexibility than fixed-ratio counters, letting the same IC be configured for different division ratios depending on how its preset inputs are wired.

Part of the CD40xx CMOS logic family, this IC is a standard building block for configurable frequency division circuits.

Features:

1. Presettable divide-by-N counting
2. Configurable division ratio via external preset
3. Part of the CD40xx CMOS logic family
4. Suited for configurable frequency division circuits