74VHC393MX

Counter Dividers Overview

The onsemi 74VHC393MX is a dual 4-bit binary counter from the 74VHC logic family, housed in a 14-lead SOIC package. It operates within a supply voltage range of 2.0V to 5.5V and supports an operating temperature range of -40°C to +85°C. The device features asynchronous clear inputs for both counters and negative-edge triggered clocking. Maximum clock frequencies reach up to 170MHz at 5.0V with 15pF load capacitance. Propagation delays vary by output stage, ranging from approximately 8.5ns to 16.5ns depending on voltage and load conditions.

Counter Dividers Feature Summary

• Dual independent 4-bit binary counting circuits integrated into a single package
• Advanced high-speed CMOS technology providing operation similar to Bipolar Schottky TTL
• Input protection circuitry allowing safe interfacing between mismatched supply voltages
• Asynchronous clear functionality resets outputs to low state regardless of other inputs

Counter Dividers Applications

• Frequency division applications requiring multiple stages
• Digital counting systems utilizing negative-edge triggering
• Interface circuits connecting 5V and 3V logic domains
• Battery backup system synchronization

Counter Dividers Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm RoHS compliance status as specified in official documentation. Ensure storage and handling procedures adhere to moisture sensitivity level requirements. Validate that the specific ordering suffix matches the required tape and reel packaging configuration for automated assembly processes.

Counter Dividers Selection Notes

Select this component when high-speed binary counting is required alongside low power consumption characteristics. The VHC series offers superior speed compared to standard HC logic while maintaining CMOS efficiency. Consider the 14-lead SOIC package dimensions for PCB layout constraints. Verify input voltage compatibility if interfacing with systems operating outside the recommended 2.0V to 5.5V range.

Counter Dividers Part Context

This device belongs to the 74VHC logic family, representing advanced high-speed CMOS technology originally developed by Fairchild Semiconductor. The 74VHC393 serves as a dual 4-bit binary counter variant within this series. It maintains pin and function compatibility with the 74HC393 counterpart while delivering improved switching speeds. The MX suffix indicates availability in tape and reel packaging formats suitable for surface mount assembly.

Counter Dividers Replacement Considerations

The MC74HC393ADTR2G provides functional equivalence within the 74HC family, though with lower maximum frequency specifications. Designers should verify propagation delay differences and ensure voltage levels remain within the operational limits of the replacement device. Package compatibility must be confirmed before substitution.