SN74HC21QPWRQ1

Product Overview

• Category: Integrated Circuit
• Use: Logic Gate
• Characteristics: Dual 4-input AND gate
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: High-speed CMOS technology
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 2V to 6V
• Input Voltage: 0V to VCC
• Output Voltage: 0V to VCC
• Operating Temperature Range: -40°C to +125°C
• Propagation Delay: 9 ns (typical)
• Quiescent Current: 2 µA (maximum)

Pin Configuration

The SN74HC21QPWRQ1 has a total of 14 pins. The pin configuration is as follows:

``` __ __ 1 |1 __/ 14| VCC 2 |2 13| A1 3 |3 12| B1 4 |4 11| Y1 5 |5 10| A2 6 |6 9| B2 7 |7 8| Y2

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Functional Features

• Dual 4-input AND gate with independent inputs
• High-speed operation due to CMOS technology
• Low power consumption
• Wide operating voltage range
• Schmitt-trigger input for noise immunity

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient processing - Low power consumption reduces energy usage - Wide operating voltage range provides flexibility in various applications - Schmitt-trigger input ensures reliable operation in noisy environments

Disadvantages: - Limited number of inputs (4 per gate) - Not suitable for applications requiring more complex logic functions

Working Principles

The SN74HC21QPWRQ1 is a dual 4-input AND gate that performs logical AND operations on its inputs. It utilizes high-speed CMOS technology, which allows for fast and efficient processing of logic signals. The Schmitt-trigger input ensures reliable operation even in the presence of noise.

When all four inputs are high (logic level 1), the output of the gate becomes high. Otherwise, the output remains low (logic level 0). This behavior follows the truth table for an AND gate:

A B C D | Y ------------|---- 0 0 0 0 | 0 0 0 0 1 | 0 0 0 1 0 | 0 0 0 1 1 | 0 0 1 0 0 | 0 0 1 0 1 | 0 0 1 1 0 | 0 0 1 1 1 | 0 1 0 0 0 | 0 1 0 0 1 | 0 1 0 1 0 | 0 1 0 1 1 | 0 1 1 0 0 | 0 1 1 0 1 | 0 1 1 1 0 | 0 1 1 1 1 | 1

Detailed Application Field Plans

The SN74HC21QPWRQ1 is commonly used in various digital systems and applications, including:

1. Microcontrollers and microprocessors
2. Data communication systems
3. Industrial automation
4. Automotive electronics
5. Consumer electronics
6. Robotics
7. Internet of Things (IoT) devices

Its high-speed operation, low power consumption, and wide operating voltage range make it suitable for a wide range of applications that require logical AND operations.

Detailed and Complete Alternative Models

• SN74HC08QPWRQ1: Quad 2-input AND gate
• SN74HC32QPWRQ1: Quad 2-input OR gate
• SN74HC86QPWRQ1: Quad 2-input XOR gate
• SN74HC00QPWRQ1: Quad 2-input NAND gate
• SN74HC02QPWRQ1: Quad 2-input NOR gate

These alternative models provide similar functionality but with different logic operations, allowing for flexibility in designing digital circuits.

*Note: The content