SN74LS393NS

Counter Dividers Overview

The SN74LS393NS is a dual 4-bit binary counter integrated circuit manufactured by Texas Instruments. It operates within a supply voltage range of 4.75 V to 5.25 V and supports a maximum counting rate of 35 MHz. The device features two independent counters, each with four bits, utilizing negative-edge triggered flip-flops. It includes an asynchronous reset function for immediate clearing of count states. The component is housed in a 16-pin DIP package and is designed for operation across a temperature range of 0°C to 70°C.

Counter Dividers Feature Summary

• Dual independent 4-bit binary counting capability
• Negative-edge triggered clock inputs
• Asynchronous master reset functionality

Counter Dividers Applications

• Digital frequency division circuits
• Binary sequence generation systems
• Event counting applications

Counter Dividers Procurement Notes

Verify the specific suffix 'NS' against the manufacturer's current datasheet to confirm the package type and pinout configuration. Ensure that the required operating temperature range aligns with the commercial grade specifications. Confirm RoHS compliance status if environmental regulations apply to the final assembly. Cross-reference the ordering information with official Texas Instruments documentation to avoid discrepancies in package variants.

Counter Dividers Selection Notes

Select this component when a dual-channel binary counting solution is required without synchronous load capabilities. Compare against the SN74LS390 if decade (BCD) counting is needed instead of pure binary progression. Consider the 35 MHz speed limit for high-frequency timing applications. Evaluate the DIP packaging constraints against available board space and mounting requirements.

Counter Dividers Part Context

This part belongs to the standard 74LS series of logic components, known for low-power Schottky performance. It serves as a fundamental building block for sequential logic design. The device is often paired with decoders or other counter stages to expand counting ranges. It represents a legacy but widely supported technology in digital electronics.

Counter Dividers Replacement Considerations

SN74LS393DR: Surface mount variant with identical logical functions and electrical characteristics.