MC74HC393N

Counter Dividers Overview

The MC74HC393N is a dual 4-bit binary ripple counter manufactured by onsemi. It belongs to the HC/UH series of high-performance silicon-gate CMOS logic devices. The component integrates two independent 4-bit counters within a single package, allowing for cascading to form higher-order counters such as a ÷256 divider. It features asynchronous reset inputs and negative edge-triggered clocking for each stage. The device operates within a supply voltage range of 2.0 V to 6.0 V and supports up to 10 LSTTL loads at its outputs.

Counter Dividers Feature Summary

• Dual independent 4-bit binary ripple counter architecture
• Negative edge-triggered operation with asynchronous reset
• High noise immunity characteristic of CMOS technology
• Outputs directly interface with CMOS, NMOS, and TTL logic families

Counter Dividers Applications

• Digital frequency division circuits
• Binary counting applications in digital systems
• Cascaded counter configurations for higher modulus division
• Timing and control logic in consumer electronics

Counter Dividers Procurement Notes

Verify the specific suffix 'N' indicates the PDIP-14 plastic DIP package configuration. Confirm RoHS compliance status as historical data may vary by production batch. Check for active lifecycle status versus obsolete designations. Ensure pinout compatibility with LS393 equivalents if replacing legacy designs. Validate operating temperature ranges against application requirements.

Counter Dividers Selection Notes

Select this component when dual independent 4-bit counting is required in a compact DIP package. The HC series offers speed and power consumption suitable for general-purpose digital logic. Consider the 2.0 V to 6.0 V operating range for flexibility in low-voltage or standard 5 V systems. Verify input compatibility with driving logic levels, noting that pull-up resistors may be needed for LSTTL interfacing.

Counter Dividers Part Context

This part is part of the 74HC393 family of dual 4-bit binary counters. It shares functional similarities with other 74HC series logic but is distinct from the VHC or HCT variants regarding speed and voltage thresholds. The 'N' suffix typically denotes the through-hole DIP packaging option, distinguishing it from surface-mount variants like 'D' (SOIC) or 'ADTR2G' (TSSOP).

Counter Dividers Replacement Considerations

MC74HC393D: Surface mount SOIC equivalent. MC74HC393ADTR2G: Surface mount TSSOP equivalent. SN74HC393N: Texas Instruments DIP equivalent.