SN74AHCT74DRE4

Product Overview

• Category: Integrated Circuit (IC)
• 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: 4.5V to 5.5V
• High-Level Input Voltage: 2V to VCC + 0.5V
• Low-Level Input Voltage: -0.5V to 0.8V
• High-Level Output Voltage: VCC - 0.5V
• Low-Level Output Voltage: 0.5V
• Maximum Operating Frequency: 100MHz
• Propagation Delay Time: 10ns
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The SN74AHCT74DRE4 has a total of 14 pins, which are 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) - True output
7. GND (Ground) - Ground reference
8. Q̅ (Output) - True output
9. Q (Output) - Complementary output
10. VCC (Supply Voltage) - Positive power supply
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
• Clear and preset inputs for synchronous reset
• Complementary outputs for easy integration into digital systems
• Wide operating voltage range for versatility
• Suitable for various applications requiring reliable flip-flop functionality

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data processing - Low-power consumption reduces energy requirements - Clear and preset inputs provide flexibility in system design - Complementary outputs simplify integration into digital circuits - Wide operating voltage range enables compatibility with different power supplies

Disadvantages: - Limited to positive-edge-triggered functionality - Not suitable for applications requiring negative-edge triggering - May not be ideal for high-frequency applications exceeding 100MHz

Working Principles

The SN74AHCT74DRE4 is a dual D-type positive-edge-triggered flip-flop. It operates by capturing the data input (D) at the rising edge of the clock input (CLK). The captured data is then stored in the flip-flop until the next rising edge of the clock signal. The flip-flop can be cleared or preset using the CLR and PR inputs, respectively. The complementary outputs (Q and Q̅) provide the inverted and non-inverted versions of the stored data.

Detailed Application Field Plans

The SN74AHCT74DRE4 is widely used in various digital systems and applications, including but not limited to:

1. Microprocessors and microcontrollers
2. Data storage devices
3. Communication systems
4. Signal processing circuits
5. Control systems
6. Timing and synchronization circuits
7. Logic gates and registers
8. Industrial automation equipment
9. Automotive electronics
10. Consumer electronics

Detailed and Complete Alternative Models

1. SN74AHCT74DR - Similar specifications and features, but without the "E4" suffix
2. SN74AHCT74PW - TSSOP (Thin Shrink Small Outline Package) version of the flip-flop
3. SN74AHCT74N - DIP (Dual In-line Package) version of the flip-flop
4. SN74AHCT74RGYR - QFN (Quad Flat No-Lead) version of the flip-flop

These alternative models offer similar functionality and can be used as substitutes for the SN74AHCT74DRE4 depending on specific requirements and package preferences.

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