SN7404D

Overview

The SN7404D is a hex inverter integrated circuit manufactured by Texas Instruments, belonging to the standard 7400 logic series. It contains six independent inverters within a single package. The device operates with a supply voltage range of 4.75 V to 5.25 V and supports a low-level output current of 16 mA and a high-level output current of -400 µA. Propagation delay is specified at 11 ns. It functions within an operating temperature range of 0°C to +70°C and utilizes a 14-pin SOIC surface-mount package.

Feature Summary

• Contains six independent inverter channels for signal inversion
• Compatible with standard 5V TTL logic levels
• Designed for surface-mount installation via SOIC-14 package

Applications

• Digital logic signal inversion
• Clock signal generation circuits
• Basic combinational logic implementation

Procurement Notes

Verify that the component matches the specific SN7404D designation rather than other variants like SN74LS04D or SN74HC04D, as electrical characteristics differ significantly between these families. Confirm the manufacturer is Texas Instruments and check for RoHS compliance status if required by project specifications. Ensure the package type corresponds to the SOIC-14 form factor.

Selection Notes

Select this component when standard TTL performance is required for inverting applications. It is suitable for designs operating strictly at 5V. Consider alternative logic families such as LS or HC if lower power consumption or wider voltage ranges are necessary, as the standard 7400 series has higher power dissipation compared to modern CMOS equivalents.

Part Context

This part belongs to the foundational 7400 series of digital logic ICs, which established industry standards for gate functionality. The SN7404 specifically provides the NOT function, serving as a fundamental building block for more complex digital systems. Its widespread adoption ensures broad compatibility with legacy designs and standard testing equipment.