SN74AHCT74NSR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Flip-Flop
• Characteristics: High-speed, low-power, dual D-type positive-edge-triggered flip-flop
• Package: 14-pin small-outline integrated circuit (SOIC)
• Essence: This IC is designed to store and transfer data in digital systems.
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• High-Level Input Voltage: 2V
• Low-Level Input Voltage: 0.8V
• High-Level Output Voltage: 4.4V
• Low-Level Output Voltage: 0.1V
• Maximum Operating Frequency: 125 MHz
• Propagation Delay Time: 9 ns
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The SN74AHCT74NSR has a total of 14 pins, numbered as follows:

1. CLR (Clear) - Active LOW clear input
2. D (Data) - Data input
3. CLK (Clock) - Clock input
4. PR (Preset) - Active LOW preset input
5. Q (Output) - Complementary output
6. Q̅ (Output) - Non-complementary output
7. GND (Ground) - Ground reference
8. Q̅ (Output) - Non-complementary output
9. Q (Output) - Complementary output
10. VCC (Supply Voltage) - Positive supply voltage
11. D (Data) - Data input
12. CLK (Clock) - Clock input
13. PR (Preset) - Active LOW preset input
14. CLR (Clear) - Active LOW clear input

Functional Features

• Dual D-type positive-edge-triggered flip-flop
• High-speed operation with low power consumption
• Asynchronous clear and preset inputs for easy initialization
• Complementary and non-complementary outputs for flexible data handling

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer - Low-power consumption helps in reducing overall system energy usage - Clear and preset inputs enable easy initialization of the flip-flop - Complementary and non-complementary outputs provide flexibility in data handling

Disadvantages: - Limited operating temperature range (-40°C to 85°C) - Requires a supply voltage between 4.5V and 5.5V, which may not be suitable for all applications

Working Principles

The SN74AHCT74NSR is a dual D-type positive-edge-triggered flip-flop. It stores and transfers data based on the rising edge of the clock signal. The data input (D) is latched into the flip-flop when the clock input (CLK) transitions from LOW to HIGH. The complementary (Q) and non-complementary (Q̅) outputs reflect the stored data.

The flip-flop can be cleared using the CLR (Clear) input, which is active LOW. Similarly, the PR (Preset) input, also active LOW, can set the flip-flop to a predefined state. These inputs allow for easy initialization of the flip-flop.

Detailed Application Field Plans

The SN74AHCT74NSR is commonly used in various digital systems where data storage and transfer are required. Some specific application areas include:

1. Microcontrollers: Used to store and synchronize data in microcontroller-based systems.
2. Communication Systems: Enables data buffering and synchronization in communication protocols.
3. Memory Modules: Facilitates data storage and retrieval in memory modules.
4. Digital Signal Processing: Supports data processing and synchronization in DSP applications.
5. Industrial Automation: Used for data handling and control in industrial automation systems.

Detailed and Complete Alternative Models

1. SN74AHCT74D - 14-pin plastic dual in-line package (PDIP)
2. SN74AHCT74PW - 14-pin TSSOP package
3. SN74AHCT74RGYR - 14-pin VQFN package with exposed pad

These alternative models offer similar functionality to the SN74AHCT74NSR but may differ in package type or other minor specifications.

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