MM74HC393SJ

Counter Dividers Overview

The MM74HC393SJ is a dual 4-bit binary counter manufactured by onsemi, housed in a 14-lead Small Outline Package (SOP) with a width of 5.3mm. It utilizes advanced silicon-gate CMOS technology and features two independent ripple carry counters that increment on the negative edge of the clock input. Each counter includes an independent clear input for count truncation or divide-by-N configurations. The device operates within a supply voltage range of 2V to 6V and supports a typical operating frequency of 50 MHz. Outputs can drive ten low power Schottky TTL equivalent loads.

Counter Dividers Feature Summary

• Contains two independent 4-bit ripple carry binary counters capable of cascading to form a single divide-by-256 counter.
• Features negative edge triggered clocking and independent clear inputs for each counter section.
• Outputs are compatible with low power Schottky TTL loads, providing functional and pin equivalence to the 74LS393.

Counter Dividers Applications

• Count truncation applications
• Divide-by-N counter configurations
• Cascaded divide-by-256 counter implementations

Counter Dividers Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm package specifications match the 14-lead SOP format. Review datasheet electrical characteristics against system requirements. Ensure compliance with environmental standards as indicated in product documentation.

Counter Dividers Selection Notes

Select this component when dual independent counting functions are required in a compact surface-mount footprint. Consider the 2V to 6V supply range compatibility with existing logic levels. Evaluate propagation delay specifications relative to maximum system clock speeds. Verify thermal dissipation capabilities within the SOP package constraints.

Counter Dividers Part Context

This part belongs to the MM74HC393 series of dual 4-bit binary counters. It represents a CMOS implementation designed to replace older TTL technologies while maintaining pin compatibility. The SOP package variant offers a specific physical footprint distinct from DIP or TSSOP options within the same logical family.

Counter Dividers Replacement Considerations

Direct substitutes include MC74HC393D and MC74HC393ADTR2G. Cross-manufacturer equivalents such as SN74HC393N are available. Verify package dimensions and lead configurations before substitution.