SN74HC21DRG4

Inverter Gates Overview

The SN74HC21DRG4 is a dual 4-input positive-AND gate integrated circuit manufactured by Texas Instruments. It belongs to the SN74HC series of high-speed CMOS logic devices and is housed in a 14-pin SOIC surface-mount package. The component operates within a supply voltage range of 2 V to 6 V and supports an industrial operating temperature range from -40°C to +85°C. Key electrical characteristics include a low-level output current of 5.2 mA, a high-level output current of -5.2 mA, and a typical propagation delay of 11 ns.

Inverter Gates Feature Summary

• Contains two independent four-input AND logic gates within a single package
• Utilizes high-speed CMOS technology for efficient power consumption and fast switching speeds
• Features push-pull outputs capable of driving moderate loads directly

Inverter Gates Applications

• Digital logic circuits requiring multi-input AND functionality
• Microprocessor system control and address decoding
• General-purpose digital signal processing applications

Inverter Gates Procurement Notes

Verify the specific suffix 'G4' indicates lead-free packaging compliant with RoHS standards. Confirm the SOIC-14 package dimensions match the design footprint requirements. Ensure the operating environment stays within the specified -40°C to +85°C temperature range for optimal performance. Cross-reference the manufacturer part number with authorized distributors to ensure authenticity.

Inverter Gates Selection Notes

Select this component when a dual 4-input AND function is required in a compact surface-mount form factor. The HC series offers a balance of speed and power efficiency suitable for general-purpose digital designs. Consider the 2 V to 6 V supply range compatibility with the target system voltage levels. Verify that the 11 ns propagation delay meets the timing constraints of the application.

Inverter Gates Part Context

This device is part of the broader SN74HC family of high-speed CMOS logic ICs produced by Texas Instruments. The 'SN74' prefix denotes commercial temperature range availability, while 'HC' specifies the high-speed CMOS process technology. The '21' identifier corresponds to the dual 4-input AND gate logic function, distinguishing it from other logic types in the same package lineup.

Inverter Gates Replacement Considerations

The SN74HC21DRE4 is a verified equivalent variant from the same manufacturer featuring identical electrical specifications and pinout configuration.