SN74HC21N

Inverter Gates Overview

The SN74HC21N is a dual 4-input positive-AND gate integrated circuit manufactured by Texas Instruments. It belongs to the HC (High-speed CMOS) logic family and is housed in a 14-pin PDIP package. The device operates within a supply voltage range of 2V to 6V and supports an operating temperature range from -40°C to 85°C. It features push-pull outputs and standard CMOS inputs, designed for general-purpose digital logic applications requiring reliable AND functionality.

Inverter Gates Feature Summary

• Contains two independent 4-input AND gates within a single package
• Utilizes high-speed CMOS technology for efficient power consumption
• Provides push-pull output stages for robust signal driving capability

Inverter Gates Applications

• Digital logic circuits requiring multi-input AND operations
• General-purpose computing systems
• Industrial control logic interfaces

Inverter Gates Procurement Notes

Verify that the ordering suffix corresponds to the PDIP-14 through-hole package variant. Confirm RoHS compliance status if environmental regulations apply to the specific manufacturing batch. Ensure the component matches the active product lifecycle status indicated in official Texas Instruments documentation before finalizing procurement plans.

Inverter Gates Selection Notes

Select this component when a dual 4-input AND function is required in a through-hole DIP format. The HC series offers compatibility with standard 5V logic levels while supporting lower voltage operation down to 2V. Consider pinout compatibility with existing PCB footprints designed for the 14-pin DIP configuration during the design phase.

Inverter Gates Part Context

This part is a member of the Texas Instruments 74HC logic family, which provides high-speed operation comparable to the older 74LS series but with significantly lower power dissipation. The 'N' suffix specifically denotes the plastic dual-in-line package, distinguishing it from surface-mount variants like PWR or PW found in the same functional family.

Inverter Gates Replacement Considerations

Cross-reference with other manufacturers offering equivalent 74HC21 PDIP-14 devices. Verify pin-to-pin compatibility and electrical parameter alignment, particularly propagation delay and output current specifications, before substituting.