SN74AHCT74DG4

Product Overview

• Category: Integrated Circuit
• Use: Flip-Flop
• Characteristics: High-speed, low-power, dual D-type positive-edge-triggered flip-flop
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Reliable and efficient digital logic component
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2V to 5.5V
• High-Speed Operation: 8 ns typical propagation delay
• Low Power Consumption: 4µA maximum ICC
• Operating Temperature Range: -40°C to +85°C
• Output Drive Capability: ±24mA at 3.3V
• Input Voltage Levels: VIL = 0.8V, VIH = 2V

Detailed Pin Configuration

The SN74AHCT74DG4 has a total of 14 pins, which are labeled as follows:

1. CLR (Clear) - Active LOW clear input
2. D1 (Data Input 1) - Data input for the first flip-flop
3. CLK (Clock) - Clock input
4. D2 (Data Input 2) - Data input for the second flip-flop
5. Q1 (Output 1) - Output of the first flip-flop
6. Q1' (Complementary Output 1) - Complementary output of the first flip-flop
7. GND (Ground) - Ground reference
8. Q2' (Complementary Output 2) - Complementary output of the second flip-flop
9. Q2 (Output 2) - Output of the second flip-flop
10. PRE (Preset) - Active LOW preset input
11. PR' (Complementary Preset) - Complementary preset input
12. CLR' (Complementary Clear) - Complementary clear input
13. VCC (Supply Voltage) - Positive supply voltage
14. PR (Preset) - Active HIGH preset input

Functional Features

• Dual D-type positive-edge-triggered flip-flop with clear and preset inputs
• High-speed operation allows for efficient data processing
• Low power consumption ensures energy efficiency
• Reliable performance in various operating conditions
• Easy integration into digital logic circuits

Advantages and Disadvantages

Advantages: - High-speed operation enables quick data processing - Low power consumption reduces energy usage - Reliable performance ensures accurate results - Versatile integration into different digital logic systems

Disadvantages: - Limited functionality compared to more complex flip-flops - May require additional components for specific applications

Working Principles

The SN74AHCT74DG4 is a dual D-type positive-edge-triggered flip-flop. It operates based on the rising edge of the clock signal. The data inputs (D1 and D2) are latched into the flip-flops when the clock signal transitions from low to high. The outputs (Q1 and Q2) reflect the state of the inputs at the time of the clock transition.

The clear (CLR) and preset (PRE) inputs allow for resetting or setting the flip-flop outputs to specific states. When the clear input is activated, both outputs are forced to a low state. Conversely, when the preset input is activated, both outputs are set to a high state.

Detailed Application Field Plans

The SN74AHCT74DG4 can be used in various applications, including:

1. Digital Counters: The flip-flop's ability to store and update binary information makes it suitable for building digital counters used in electronic devices.
2. Data Storage: The flip-flop can be utilized as a basic memory element in digital systems, storing data for later retrieval and processing.
3. Synchronous Logic Circuits: The positive-edge-triggered nature of the flip-flop makes it suitable for synchronous logic circuits, where operations are synchronized with a clock signal.

Detailed and Complete Alternative Models

1. SN74AHCT74D - Similar to SN74AHCT74DG4 but available in a different package (SOIC-14)
2. MC74HC74A - Dual D-type flip-flop with similar characteristics and functionality
3. CD4013B - CMOS dual D-type flip-flop with complementary outputs

These alternative models offer similar features and can be used as substitutes depending on specific requirements.

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