SN74HC21D

Inverter Gates Overview

The SN74HC21D is a dual 4-input AND gate integrated circuit manufactured by Texas Instruments. It operates within a supply voltage range of 2V to 6V and features a propagation delay of 19ns at 6V with a 50pF load. The device provides high-level and low-level output currents of 5.2mA each, with a maximum static current of 2µA. It is housed in a 14-SOIC surface-mount package and supports an operating temperature range from -40°C to 85°C.

Inverter Gates Feature Summary

• Dual independent 4-input AND logic gates
• CMOS technology for low power consumption
• Wide operating voltage range compatibility

Inverter Gates Applications

• Digital logic signal processing
• Microcontroller input gating
• Data path selection circuits

Inverter Gates Procurement Notes

Verify the specific manufacturer part number against official Texas Instruments documentation to confirm pinout and electrical characteristics. Ensure the component meets required environmental standards and packaging specifications for the intended application before procurement.

Inverter Gates Selection Notes

Select this component when dual 4-input AND functionality is required in a compact surface-mount form factor. Consider the 2V to 6V supply range and 19ns propagation delay for timing-sensitive designs. Verify compatibility with existing logic levels and thermal requirements.

Inverter Gates Part Context

This component belongs to the 74HC series of high-speed CMOS logic devices. It serves as a standard digital logic gate solution for general-purpose applications requiring reliable AND operations in compact electronic systems.

Inverter Gates Replacement Considerations

SN74HC21DR (Texas Instruments)

Inverter Gates FAQ

What is the maximum propagation delay for the SN74HC21D?

The maximum propagation delay is 19ns at a supply voltage of 6V with a 50pF load.

Does the SN74HC21D include Schmitt trigger inputs?

No, the SN74HC21D does not feature Schmitt trigger inputs.