SN74HC21DG4

Inverter Gates Overview

The SN74HC21DG4 is a dual four-input positive-AND gate manufactured by Texas Instruments. It belongs to the HC logic family and utilizes CMOS technology. The device operates within a supply voltage range of 2 V to 6 V. It features a propagation delay of 11 ns at 6 V with a 50 pF load. Output drive capability is specified at 5.2 mA for both high and low states. The component supports an operating temperature range from -40°C to +125°C and is housed in a 14-SOIC surface-mount package.

Inverter Gates Feature Summary

• Dual four-input AND logic functionality
• Automotive qualification via AEC-Q100 standards
• Extended industrial temperature operation up to 125°C

Inverter Gates Applications

• Automotive digital logic control systems
• Industrial signal processing circuits
• High-temperature embedded logic applications

Inverter Gates Procurement Notes

Verify the specific suffix 'DG4' against official Texas Instruments documentation to confirm it denotes the standard commercial grade variant rather than a specialized automotive or extended specification version. Ensure the datasheet confirms the SOIC-14 package dimensions and pinout compatibility before finalizing procurement orders.

Inverter Gates Selection Notes

Select this component when dual four-input AND logic is required in space-constrained designs using surface-mount technology. The HC series offers balanced speed and power consumption suitable for general-purpose digital applications. Verify that the 2V to 6V supply range aligns with the system's power architecture and that the 11ns delay meets timing requirements.

Inverter Gates Part Context

This part is a member of the Texas Instruments SN74HC21 series, which provides dual four-input AND gates. The 'D' suffix indicates the 14-SOIC package type, while 'G4' typically signifies lead-free construction and RoHS compliance. It serves as a fundamental building block for complex logic functions in digital circuit design.

Inverter Gates Replacement Considerations

Compatible substitutes include the SN74HC21DR (standard reel) and SN74HC21PW (TSSOP package). Cross-reference the exact suffix specifications to ensure identical electrical characteristics and package footprint compatibility.