SN7404N

Overview

The SN7404N is a hex inverter integrated circuit manufactured by Texas Instruments, belonging to the standard 74-series logic family. It features six independent inverters within a single package. The device operates with a supply voltage range of 4.75V to 5.25V and supports a wide operating temperature range from 0°C to +70°C. It utilizes bipolar TTL technology and is housed in a 14-pin PDIP through-hole package. Key electrical characteristics include a propagation delay of approximately 22ns and an output current capability of 8mA at low levels.

Feature Summary

• Contains six independent NOT gates for signal inversion
• Compatible with standard TTL logic families
• Provides robust drive capability for digital loads

Applications

• Signal inversion in digital logic circuits
• Clock waveform shaping
• Level shifting between logic stages

Procurement Notes

Verify the specific suffix 'N' confirms the PDIP-14 through-hole package variant. Confirm the manufacturer is Texas Instruments to ensure compatibility with specified electrical parameters. Check RoHS compliance status as manufacturing processes may vary by production batch. Ensure the component matches the standard 74LS or 74S specifications if exact speed requirements are critical.

Selection Notes

Select this component when standard TTL performance is required for basic inversion tasks. Consider the PDIP-14 package for prototyping or applications requiring through-hole mounting. Evaluate the 22ns propagation delay against system timing constraints. Compare against HC or HCT series variants if lower power consumption or wider voltage ranges are necessary for the design.

Part Context

This part belongs to the extensive Texas Instruments 74-series logic portfolio, widely used in industrial and consumer electronics. It serves as a fundamental building block for combinational logic designs. The SN7404N represents the classic bipolar implementation, offering high noise immunity compared to earlier transistor-transistor logic generations.

Replacement Considerations

SN74LS04N: Lower power consumption variant with similar pinout. SN74S04N: Faster switching speed but higher power usage. CD74HC04M: CMOS alternative requiring different voltage considerations.