SN74AHC74DRE4

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: This integrated circuit is designed to store and transfer digital information in electronic systems.
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2 V to 5.5 V
• High-Speed Operation: 20 ns maximum propagation delay
• Low Power Consumption: ICC = 4 µA maximum
• Operating Temperature Range: -40°C to +85°C
• Output Drive Capability: ±8 mA at 5 V
• Input Voltage Levels: VIL = 0.8 V, VIH = 2 V
• Pin Count: 14

Detailed Pin Configuration

1. CLR (Clear) - Active LOW input for clearing the flip-flop
2. D (Data) - Data input for the flip-flop
3. CLK (Clock) - Clock input for triggering the flip-flop
4. Q (Output) - Complementary output of the flip-flop
5. Q̅ (Output) - Non-complementary output of the flip-flop
6. GND (Ground) - Ground reference for the IC
7. Q̅ (Output) - Non-complementary output of the flip-flop
8. Q (Output) - Complementary output of the flip-flop
9. VCC (Supply Voltage) - Positive supply voltage for the IC
10. D (Data) - Data input for the flip-flop
11. CLR (Clear) - Active LOW input for clearing the flip-flop
12. CLK (Clock) - Clock input for triggering the flip-flop
13. GND (Ground) - Ground reference for the IC
14. VCC (Supply Voltage) - Positive supply voltage for the IC

Functional Features

• Dual D-Type Positive-Edge-Triggered Flip-Flop: The SN74AHC74DRE4 consists of two independent D-type flip-flops with a common clock input and individual data inputs.
• High-Speed Operation: With a maximum propagation delay of 20 ns, this flip-flop allows for efficient data transfer in high-speed digital systems.
• Low Power Consumption: The IC has a low quiescent current of 4 µA, making it suitable for battery-powered devices and energy-efficient applications.

Advantages and Disadvantages

Advantages: - High-speed operation enables quick data processing. - Low power consumption prolongs battery life in portable devices. - Dual flip-flop configuration provides flexibility in circuit design.

Disadvantages: - Limited output drive capability may restrict use in certain applications requiring higher current levels. - The SOIC package may not be suitable for space-constrained designs.

Working Principles

The SN74AHC74DRE4 operates based on positive-edge-triggered flip-flop functionality. When the clock input (CLK) transitions from LOW to HIGH, the data input (D) is captured and stored in the flip-flop. The complementary (Q) and non-complementary (Q̅) outputs reflect the stored data. The clear input (CLR) can be used to reset the flip-flop to a known state.

Detailed Application Field Plans

The SN74AHC74DRE4 finds application in various digital systems where reliable storage and transfer of digital information are required. Some potential application fields include:

1. Communication Systems: Used in data transmission modules, routers, and network switches.
2. Consumer Electronics: Integrated into smartphones, tablets, and gaming consoles for data processing and control.
3. Automotive Electronics: Employed in vehicle control units, infotainment systems, and driver assistance modules.
4. Industrial Automation: Utilized in programmable logic controllers (PLCs), motor control circuits, and sensor interfaces.

Detailed and Complete Alternative Models

1. SN74AHC74: Similar to SN74AHC74DRE4 but available in a different package (PDIP).
2. MC74HC74: Equivalent dual flip-flop IC from a different manufacturer (Motorola).

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

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