MC74HC390DR2

Counter Dividers Overview

The MC74HC390DR2 is a dual 4-bit binary counter integrated circuit manufactured by onsemi. It belongs to the 74HC logic family and operates within a supply voltage range of 2 V to 6 V. The device features two independent decade counters, each with asynchronous reset inputs and negative-edge triggered clock inputs. Designed for surface-mount applications, it utilizes a 16-SOIC package. The component supports operation across an extended temperature range from -55°C to +125°C, ensuring reliability in demanding environments.

Counter Dividers Feature Summary

• Dual independent 4-bit binary counting architecture
• Asynchronous reset functionality for immediate state clearing
• Negative-edge triggered clock input synchronization
• Extended industrial temperature range capability

Counter Dividers Applications

• Digital timing circuits requiring precise interval generation
• Frequency division networks in signal processing systems
• Address decoding logic in microcontroller-based interfaces
• Event counting mechanisms in industrial automation controllers

Counter Dividers Procurement Notes

Verify the specific suffix DR2 against official datasheets to confirm tape-and-reel packaging specifications. Ensure compatibility with standard SOIC-16 footprint dimensions during PCB layout. Confirm RoHS compliance status through manufacturer declarations prior to integration into regulated assemblies.

Counter Dividers Selection Notes

Select this component when dual independent decade counters are required within a single package. The HC series offers CMOS performance suitable for low-power applications. Verify that the 2V to 6V operating range aligns with system power rails. Consider the 16-pin SOIC package constraints for available board space.

Counter Dividers Part Context

This part is a member of the widely adopted 74HC logic family, known for high-speed CMOS technology. It serves as a fundamental building block for sequential logic design. The MC74HC390 variant specifically provides dual counters, offering density advantages over single-counter alternatives in complex digital designs.

Counter Dividers Replacement Considerations

Cross-reference with MC74HC390ADG for tube-packaged equivalents. Verify pinout compatibility with other 74HC390 derivatives from different manufacturers before substitution.