74VHC393N

Counter Dividers Overview

The onsemi 74VHC393N is a dual 4-bit binary counter implemented in advanced high-speed CMOS technology. It integrates two independent counters within a single package, enabling the counting or frequency division of eight binary bits using one IC. The device operates on negative-going clock transitions and features asynchronous clear inputs to reset outputs to logic low. It supports supply voltages from 2.0V to 5.5V and includes input protection circuits allowing operation with mismatched supply levels.

Counter Dividers Feature Summary

• High-speed operation comparable to Bipolar Schottky TTL while maintaining low power dissipation
• Pin and function compatible with standard 74HC393 devices
• Power-down protection provided on all inputs to prevent device destruction during voltage mismatches
• Asynchronous clear functionality resets all outputs regardless of other input states

Counter Dividers Applications

• Frequency division circuits
• Binary counting applications
• Interfacing between 5V and 3V systems
• Battery backup system integration

Counter Dividers Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm RoHS compliance status as specified in ordering information. Ensure proper handling procedures are followed for ESD-sensitive components. Review datasheet specifications regarding absolute maximum ratings before implementation to avoid device damage.

Counter Dividers Selection Notes

Select this component when dual independent 4-bit counters are required in a compact form factor. Consider its compatibility with 74HC393 designs if pin-out consistency is necessary. Evaluate propagation delay characteristics against system timing requirements. Assess power consumption needs relative to the low quiescent current specifications provided.

Counter Dividers Part Context

This device belongs to the VHC series of high-speed CMOS logic products originally developed by Fairchild Semiconductor. It represents an evolution of the standard 74HC393 architecture, offering improved switching speeds. The product line focuses on delivering bipolar-like performance with CMOS efficiency, suitable for general-purpose digital logic applications requiring reliable binary counting capabilities.

Counter Dividers Replacement Considerations

Direct substitutes include the 74HC393 due to pin and function compatibility. Verify electrical parameters such as propagation delay and operating voltage ranges match specific application requirements before substitution.