Manufacturer Part Number
SN74HC21D
Manufacturer
Texas Instruments
Introduction
The SN74HC21D is a dual 4-input AND gate logic chip that operates with a 2V to 6V supply, suitable for various digital logic applications.
Product Features and Performance
Dual 4-input AND gate logic configuration
Supply Voltage range 2V to 6V
Low quiescent current: 2µA maximum
High output current: 5.2mA for both high and low states
Acceptable input logic level: Low 0.5V to 1.8V, High 1.5V to 4.2V
Maximum Propagation Delay: 19ns at 6V, 50pF
Operating temperature range: -40°C to 85°C
Mounting Type: Surface Mount
Package type: 14-SOIC
Product Advantages
Low power consumption enhances battery life in portable applications
Compatibility with a wide range of supply voltages provides flexibility in circuit design
Fast propagation delay supports high-speed operations
Key Technical Parameters
Supply Voltage: 2V ~ 6V
Quiescent Current: 2 µA
Output Current High, Low: 5.2 mA
Input Logic Level Low: 0.5V ~ 1.8V
Input Logic Level High: 1.5V ~ 4.2V
Max Propagation Delay: 19ns at 6V, 50pF
Operating Temperature: -40°C ~ 85°C
Quality and Safety Features
Operates reliably over an extended temperature range of -40°C to 85°C
Compatibility
Compatible with other logic families within the 2V to 6V supply range
Application Areas
Digital logic circuits
Embedded systems
Consumer electronics
Automation systems
Product Lifecycle
Discontinued at Digi-Key
Potential for availability through other suppliers or need for identifying replacement or upgrade models
Several Key Reasons to Choose This Product
Excellent fit for low power consumption requirements
Versatile voltage operation suitable for various digital systems
Fast response time conducive for high-speed operations
Wide operating temperature range assures performance under extreme conditions
High reliability and robust package (14-SOIC) suitable for compact circuit designs