SN74LS393MEL

Counter Dividers Overview

The SN74LS393MEL is a dual 4-bit binary ripple counter manufactured by onsemi. It integrates two independent Modulo-16 counters within a single package, utilizing high-speed LS logic technology. Each counter section features an asynchronous clear input that forces all outputs low upon receiving a HIGH signal. The flip-flops are triggered by the high-to-low transition of the clock inputs. This component supports typical maximum count frequencies up to 50 MHz and includes input clamp diodes to minimize high-speed termination effects.

Counter Dividers Feature Summary

• Dual independent 4-bit binary counting sections
• Asynchronous master reset for each counter
• Negative edge clock triggering
• Input clamp diodes for signal integrity

Counter Dividers Applications

• Digital frequency division circuits
• Binary counting systems
• Timing signal generation
• Modulo-N counter implementations

Counter Dividers Procurement Notes

Verify the specific MEL suffix against official manufacturer documentation to confirm military-grade qualification and environmental specifications. Ensure compatibility with existing system voltage levels and temperature ranges before procurement. Cross-reference the part number with authorized distributors to confirm current availability and authenticity.

Counter Dividers Selection Notes

Select this component when dual independent binary counting capabilities are required in a compact form factor. Consider its 50 MHz typical operating speed and LS logic characteristics for applications requiring moderate speed with standard TTL-compatible interfaces. Evaluate thermal management requirements for the specified operating temperature range.

Counter Dividers Part Context

This device belongs to the SN74LS series of logic integrated circuits, designed for general-purpose digital applications. It serves as a fundamental building block for sequential logic designs, offering reliable performance in industrial and commercial environments. The dual configuration allows for efficient space utilization in complex digital systems.

Counter Dividers Replacement Considerations

Compatible substitutes include SN74LS393 variants from other manufacturers such as Texas Instruments or Motorola, provided pinouts and electrical characteristics match. Verify functional equivalence regarding clock triggering and reset behavior before substitution.