DM74S05MX

Inverter Gates Overview

The DM74S05MX is a hex inverter integrated circuit manufactured by Fairchild Semiconductor, belonging to the 74S (Schottky) logic series. It contains six independent gates performing the logic INVERT function with open-collector outputs that require external pull-up resistors. The device is housed in a 14-pin SOIC package and operates within standard TTL voltage ranges.

Inverter Gates Feature Summary

• Contains six independent inverters for signal inversion
• Features open-collector output configuration requiring external pull-up resistors
• Utilizes Schottky (S Series) technology for high-speed performance

Inverter Gates Applications

• Digital signal inversion in logic circuits
• Interface buffering with open-drain requirements
• General-purpose switching applications

Inverter Gates Procurement Notes

Verify the manufacturer origin, as this part number has been associated with Fairchild Semiconductor, ON Semiconductor, and other entities due to corporate acquisitions. Confirm the specific datasheet version matches your design requirements, particularly regarding pinout compatibility and electrical characteristics, as specifications may vary between original Fairchild and subsequent production sources.

Inverter Gates Selection Notes

Select this component when six independent inverted signals are required in a compact surface-mount package. The open-collector output necessitates external pull-up resistors, which must be accounted for in the circuit design. Ensure the application supports the Schottky logic family's voltage levels and speed characteristics compared to standard or low-power alternatives.

Inverter Gates Part Context

This component is part of the widely used 74xx logic family, specifically the 74S (Schottky) sub-family known for improved speed over standard TTL. The 'DM' prefix typically denotes military or enhanced temperature range variants in some contexts, though often used generically for commercial grades in later documentation. The 'MX' suffix indicates the 14-lead Small Outline Integrated Circuit (SOIC) package type.

Inverter Gates Replacement Considerations

Direct functional substitutes include the DM74LS05MX (lower speed, higher input impedance) or DM74ALS05MX (Advanced Low-Power Schottky). For identical Schottky performance, verify availability of legacy 74S05 equivalents from current manufacturers holding Fairchild intellectual property.