SN74LS38DG4

Inverter Gates Overview

The SN74LS38DG4 is a quadruple 2-input positive-NAND buffer with open-collector outputs manufactured by Texas Instruments. It belongs to the 74LS logic series and is housed in a 14-pin SOIC package. The device operates within a supply voltage range of 4.75 V to 5.25 V. Key electrical characteristics include a low-level output current of 8 mA and a propagation delay of 32 ns at 5 V with 15 pF load. The component supports an operating temperature range from 0°C to 70°C.

Inverter Gates Feature Summary

• Features four independent 2-input NAND buffers with open-collector outputs for flexible interfacing.
• Designed for high-speed logic applications utilizing the Low-power Schottky (LS) technology.
• Provides robust low-level sink current capability suitable for driving loads directly.

Inverter Gates Applications

• General-purpose digital logic buffering and signal conditioning
• Open-collector bus line drivers
• Interface circuits requiring wired-OR logic configuration

Inverter Gates Procurement Notes

Verify the specific suffix 'G4' indicates RoHS compliance and green manufacturing status as per Texas Instruments documentation. Confirm the SOIC-14 package dimensions match your PCB footprint requirements. Check for end-of-life notices or obsolescence warnings, as LS series components may have limited long-term availability compared to newer logic families.

Inverter Gates Selection Notes

Select this component when open-collector NAND functionality is required in a surface-mount format. Ensure the design accommodates pull-up resistors necessary for open-collector operation. Verify that the 5V logic level compatibility aligns with the rest of the system. Consider thermal dissipation if multiple gates are driven near maximum current limits simultaneously.

Inverter Gates Part Context

This part is a variant of the SN74LS38 family, distinguished by the 'D' indicating a narrow SOIC package and 'G4' denoting environmental compliance. It serves as a standard solution for quad NAND buffering in industrial and consumer electronics where space constraints favor surface-mount technology over through-hole DIP packages.

Inverter Gates Replacement Considerations

Direct pin-compatible substitutes include SN74LS38DR and SN74LS38N. Cross-vendor equivalents such as MC74LS38 or DM74LS38 may be used if electrical specifications match exactly. Verify that any replacement maintains the same open-collector output structure and current ratings.