SN74HC21PWR

Inverter Gates Overview

The SN74HC21PWR is a dual four-input positive-AND gate manufactured by Texas Instruments in the HC logic series. It operates within a supply voltage range of 2 V to 6 V and features low static power consumption characteristic of CMOS technology. The device provides two independent AND functions, each with four inputs, housed in a 14-pin TSSOP surface-mount package. It supports propagation delays typical for the HC family and includes standard set/reset capabilities compatible with general digital logic applications.

Inverter Gates Feature Summary

• Dual four-input positive-AND logic functionality
• CMOS construction for low static power dissipation
• Wide operating voltage range from 2 V to 6 V
• Surface-mount TSSOP-14 packaging

Inverter Gates Applications

• Digital logic control circuits
• Signal gating and masking operations
• General-purpose combinatorial logic design

Inverter Gates Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm exact tape-and-reel quantities and moisture sensitivity levels. Ensure the ordering part number matches the required package variant and temperature grade. Cross-reference the manufacturer's latest datasheet revision to confirm pinout compatibility and electrical characteristics before finalizing procurement orders.

Inverter Gates Selection Notes

Select this component when dual four-input AND functionality is required in a compact surface-mount form factor. The HC series offers balanced speed and power consumption suitable for general digital applications. Verify that the 2 V to 6 V supply range aligns with the system's voltage rails and that the TSSOP-14 footprint fits the PCB layout constraints.

Inverter Gates Part Context

This device belongs to the SN74HCxx series of high-speed CMOS logic gates produced by Texas Instruments. The HC series is widely used in consumer electronics and industrial systems due to its compatibility with standard TTL logic levels while offering improved noise immunity and lower power consumption compared to older NMOS technologies.

Inverter Gates Replacement Considerations

Compatible substitutes include the SN74HC21DR (SOIC package) and SN74HC21N (DIP package). Verify pinout compatibility and ensure the alternative package maintains the same electrical specifications and thermal performance requirements for the intended application.