DM74AS21N

Inverter Gates Overview

The DM74AS21N is a quadruple 2-input AND gate integrated circuit manufactured by Fairchild Semiconductor. It belongs to the Advanced Schottky (AS) logic family, designed for high-speed digital applications. The device features four independent AND gates within a single package. It operates with a supply voltage range of 4.5V to 5.5V and supports through-hole mounting in a 14-pin Dual In-line Package (DIP). The component utilizes an advanced oxide-isolated, ion-implanted Schottky TTL process to achieve improved switching performance.

Inverter Gates Feature Summary

• Advanced oxide-isolated, ion-implanted Schottky TTL process
• Quadruple 2-input AND gate configuration
• High-speed switching characteristics suitable for memory and microprocessor systems

Inverter Gates Applications

• Memory system interfaces
• Microprocessor data bus control
• Communication system logic gating

Inverter Gates Procurement Notes

Verify the specific manufacturer origin as Fairchild Semiconductor or its successor entities, noting that original production may be discontinued. Confirm the package type matches the required 14-pin DIP footprint and validate pin compatibility with existing board layouts. Ensure the logic family specifications align with the target system's voltage and speed requirements before procurement.

Inverter Gates Selection Notes

Select this component when high-speed AND logic is required in through-hole designs. The AS series offers superior switching speeds compared to standard LS logic while maintaining lower power consumption than older Schottky variants. Verify that the 14-pin DIP form factor fits the mechanical constraints and that the 4.5V to 5.5V operating range matches the system power supply.

Inverter Gates Part Context

This part is part of the DM74ASxx series of Advanced Schottky logic devices. These components are engineered to provide faster propagation delays than standard TTL families. The DM74AS21N specifically implements the AND function, serving as a fundamental building block for complex digital logic circuits requiring precise timing and reliable signal processing.

Inverter Gates Replacement Considerations

Direct substitutes include SN74AS21N from Texas Instruments. Other compatible alternatives may exist from manufacturers producing equivalent AS-series logic gates in 14-pin DIP packages.