Texas Instruments

SN74HC21DRG4  

Gates and Inverters

SN74HC21DRG4 Description

The SN74HC21DRG4 is a high-performance AND gate logic IC chip, part of the 74HC series, manufactured by Texas Instruments. This device is designed to provide reliable and efficient digital logic functions in a variety of electronic systems. It features two 4-input AND gates, making it suitable for applications requiring complex logic operations. The SN74HC21DRG4 operates over a wide supply voltage range of 2V to 6V, ensuring compatibility with various power supply configurations. It also boasts a maximum propagation delay of 19ns at 6V and 50pF, which is critical for high-speed digital circuits.

SN74HC21DRG4 Features

• Logic Type: The SN74HC21DRG4 is an AND gate logic IC, providing two 4-input AND gates. This configuration allows for complex logic operations within a compact footprint.
• Wide Operating Voltage Range: With a supply voltage range of 2V to 6V, this IC is versatile and can be used in systems with varying power supply requirements.
• Low Propagation Delay: The maximum propagation delay of 19ns at 6V and 50pF ensures high-speed performance, making it ideal for applications requiring rapid signal processing.
• Low Quiescent Current: The maximum quiescent current of 2 µA minimizes power consumption, which is beneficial for battery-operated or low-power systems.
• High Output Current: The device can drive up to 5.2mA in both high and low states, providing robust output capabilities.
• Surface Mount Package: The surface mount technology (SMT) package allows for easy integration into modern PCB designs, facilitating automated assembly processes.
• Compliance and Safety: The SN74HC21DRG4 is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards.
• Moisture Sensitivity Level: With an MSL of 1 (Unlimited), this IC is suitable for a wide range of environmental conditions without the need for special handling.

SN74HC21DRG4 Applications

The SN74HC21DRG4 is well-suited for a variety of applications due to its high-speed performance, low power consumption, and versatile operating voltage range. Some specific use cases include:

• Digital Signal Processing: The low propagation delay and high-speed performance make it ideal for applications requiring rapid signal processing, such as in digital communication systems.
• Embedded Systems: The low quiescent current and wide operating voltage range make it suitable for use in embedded systems where power efficiency and versatility are critical.
• Automotive Electronics: The robustness and compliance with environmental standards make it a good fit for automotive applications where reliability and safety are paramount.
• Consumer Electronics: The compact surface mount package and low power consumption make it suitable for consumer electronics where space and energy efficiency are important considerations.

Conclusion of SN74HC21DRG4

The SN74HC21DRG4 is a high-performance AND gate logic IC that offers a combination of speed, versatility, and efficiency. Its wide operating voltage range, low propagation delay, and low quiescent current make it suitable for a variety of applications, from digital signal processing to embedded systems. Despite being marked as obsolete, the SN74HC21DRG4 remains a reliable choice for designers looking for a robust and efficient logic solution. Its compliance with environmental and safety standards ensures it meets the requirements of modern electronics manufacturing.

SN74HC21DRG4 Documents

Download datasheets and manufacturer documentation for SN74HC21DRG4

Datasheets :

SN54HC21, SN74HC21      

HTML Datasheet :

SN54HC21, SN74HC21