CD4018AK

Counter Dividers Overview

The CD4018AK is a synchronous ring counter belonging to the 4000/14000/40000 series, manufactured by Harris Corporation. It features a 5-bit architecture with an up-counting direction and positive edge triggering. The device utilizes CMOS technology and is housed in a CDFP16 ceramic flatpack package. It supports load/preset inputs and operates within a temperature range of -55 °C to 125 °C.

Counter Dividers Feature Summary

• Synchronous operation with positive edge triggering for reliable clocked sequencing
• Johnson counter configuration with programmable connections via external wiring
• Schmitt trigger action on the clock input to improve noise immunity

Counter Dividers Applications

• Digital sequence generation circuits
• Frequency division applications
• Timing control logic systems

Counter Dividers Procurement Notes

Verify the specific manufacturer source, as Harris Corporation assets were acquired by Renesas Electronics. Confirm that the component meets MIL-STD-883 Class C screening requirements if specified for military or aerospace use. Ensure the ceramic flatpack package integrity is intact upon receipt.

Counter Dividers Selection Notes

Select this component when a 5-bit synchronous ring counter is required with Schmitt trigger clock inputs. It is suitable for designs needing up-counting sequences in harsh environments due to its wide operating temperature range and ceramic packaging options.

Counter Dividers Part Context

This part belongs to the standard 4000-series CMOS logic family, known for high noise immunity and wide power supply voltage ranges. The CD4018 variant specifically implements a Johnson counter topology, distinct from binary or decade counters in the same series.