SN74LS393DR

Counter Dividers Overview

The SN74LS393DR is a dual 4-bit binary counter integrated circuit manufactured by Texas Instruments. It belongs to the 74LS logic series and features two independent counters within a single package. The device operates with a supply voltage range of 4.75 V to 5.25 V and supports a maximum counting rate of 35 MHz. It utilizes negative-edge triggered flip-flops for synchronous operation. The component is housed in a 14-SOIC surface-mount package and is rated for an operating temperature range of 0°C to 70°C.

Counter Dividers Feature Summary

• Contains two independent 4-bit binary counters within a single integrated circuit package.
• Utilizes negative-edge triggered flip-flops for precise clock synchronization.
• Features asynchronous reset functionality for immediate counter initialization.

Counter Dividers Applications

• Digital frequency division circuits
• Binary counting applications in digital systems
• Timing sequence control modules

Counter Dividers Procurement Notes

Verify the specific suffix 'DR' confirms the tape-and-reel packaging format upon ordering. Confirm RoHS3 compliance status as indicated in official documentation. Ensure the 14-SOIC footprint matches the target PCB design constraints. Validate that the 74LS logic family characteristics align with the system's power and speed requirements before finalizing procurement.

Counter Dividers Selection Notes

Select this component when dual independent 4-bit binary counting is required in a compact surface-mount form factor. The 74LS series offers a balance of speed and power consumption suitable for general-purpose digital logic. Consider the 35 MHz maximum counting rate against the system clock requirements. Verify compatibility with existing 5V logic levels and interface standards used in the design.

Counter Dividers Part Context

This part is part of the broader 74LS393 family, which includes variants with different packaging options such as tube or SOIC. The 'DR' suffix specifically denotes the reel-based packaging intended for automated assembly processes. It shares functional specifications with other 74LS393 derivatives but differs in physical handling and storage requirements due to its specific package type.

Counter Dividers Replacement Considerations

SN74LS393DRE4

Counter Dividers FAQ

What is the trigger type for the internal flip-flops?

The SN74LS393DR uses negative-edge triggered flip-flops for clock input synchronization.

How many independent counters are included in this IC?

The device contains two separate 4-bit binary counters within a single package.