CD74HC390EX

Counter Dividers Overview

The CD74HC390EX is a high-speed CMOS dual decade counter manufactured by Harris Corporation. It integrates two independent 4-bit counters within a single 16-pin DIP package. The device operates on negative edge triggering and supports a maximum count rate of 35 MHz. It functions within a supply voltage range of 2V to 6V and withstands operating temperatures from -55°C to 125°C.

Counter Dividers Feature Summary

• Integrates two independent 4-bit decade counters in a single package
• Utilizes high-speed CMOS technology for efficient digital counting
• Features negative edge triggering for precise timing control

Counter Dividers Applications

• Digital frequency division circuits
• Binary-coded decimal (BCD) counting systems
• Timing and sequencing logic in industrial equipment

Counter Dividers Procurement Notes

Verify the manufacturer origin, as Harris Corporation assets were acquired by Texas Instruments. Confirm the specific suffix 'EX' corresponds to the intended bulk packaging and RoHS status. Ensure compatibility with existing 74HC series logic families in the target design.

Counter Dividers Selection Notes

Select this component when dual independent decade counting is required without external wiring complexity. The wide temperature range makes it suitable for harsh environments. Verify that the 16-DIP through-hole package aligns with the PCB layout constraints.

Counter Dividers Part Context

This part belongs to the 74HC series of high-speed CMOS logic devices. It serves as a fundamental building block for sequential logic designs. The device provides a compact solution for implementing complex counting sequences in digital electronics.

Counter Dividers Replacement Considerations

Check for direct equivalents such as the SN74HC390 from Texas Instruments. Verify pinout compatibility and electrical specifications before substitution.