SN74LS393NE4

Counter Dividers Overview

The SN74LS393NE4 is a dual 4-bit binary counter from the Texas Instruments SN54/74LS series. It integrates two independent 4-bit ripple counters within a single package, utilizing negative-edge-triggered flip-flops and asynchronous clear inputs. The device operates on a supply voltage of 4.75 V to 5.25 V and supports an operating temperature range of 0°C to +70°C. It is housed in a 14-pin PDIP (N) package with NIPDAU lead finish.

Counter Dividers Feature Summary

• Integrates two independent 4-bit binary counters for simultaneous counting operations
• Features negative-edge-triggered clock inputs for precise timing control
• Includes asynchronous clear inputs for immediate reset functionality

Counter Dividers Applications

• Digital frequency division circuits
• Event counting systems
• Timing signal generation

Counter Dividers Procurement Notes

Verify that the ordering suffix NE4 corresponds to the specific RoHS-compliant variant with NIPDAU lead finish as documented in the packaging addendum. Confirm the PDIP-14 package type matches the target board layout requirements before finalizing procurement orders.

Counter Dividers Selection Notes

Select this component when dual independent binary counting is required within a single logic family footprint. Ensure the design accommodates the negative-edge triggering characteristic and provides necessary pull-up or pull-down configurations for unused inputs to maintain stable operation.

Counter Dividers Part Context

This part belongs to the SN54/74LS390/393 family, which combines decade and binary counters. While the '390 variant offers decade counting, the '393 specifically provides dual 4-bit binary counting capabilities. Both share similar LS-TTL electrical characteristics and package options.

Counter Dividers Replacement Considerations

SN74LS393N serves as the standard non-RoHS equivalent within the same PDIP-14 package configuration.