MC74HC74AFG

Product Overview

• Category: Integrated Circuit
• Use: Flip-Flop
• Characteristics: High-Speed, Dual D-Type Positive-Edge-Triggered Flip-Flop
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Digital Logic IC for storing and transferring binary data
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 2V to 6V
• Logic Family: HC (High-Speed CMOS)
• Number of Flip-Flops: 2
• Trigger Type: Positive-Edge
• Clock Frequency: Up to 25 MHz
• Propagation Delay: 15 ns
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MC74HC74AFG has a total of 14 pins. The pin configuration is as follows:

1. CLR (Clear Input) - Active Low Clear Input
2. D1 (Data Input 1) - Data Input for Flip-Flop 1
3. CLK (Clock Input) - Clock Input for Flip-Flops
4. D2 (Data Input 2) - Data Input for Flip-Flop 2
5. Q2 (Output 2) - Output for Flip-Flop 2
6. Q1 (Output 1) - Output for Flip-Flop 1
7. GND (Ground) - Ground Reference
8. Q1 (Output 1) - Output for Flip-Flop 1
9. Q2 (Output 2) - Output for Flip-Flop 2
10. VCC (Supply Voltage) - Positive Supply Voltage
11. D2 (Data Input 2) - Data Input for Flip-Flop 2
12. CLK (Clock Input) - Clock Input for Flip-Flops
13. D1 (Data Input 1) - Data Input for Flip-Flop 1
14. CLR (Clear Input) - Active Low Clear Input

Functional Features

• Dual D-Type Flip-Flop: The MC74HC74AFG consists of two independent D-type flip-flops, allowing the storage and transfer of binary data.
• Positive-Edge Triggered: The flip-flops are triggered by the rising edge of the clock signal, ensuring accurate data capture.
• High-Speed Operation: With a maximum clock frequency of 25 MHz and a propagation delay of only 15 ns, the MC74HC74AFG is suitable for high-speed applications.
• Wide Supply Voltage Range: The IC can operate within a supply voltage range of 2V to 6V, providing flexibility in various electronic systems.

Advantages and Disadvantages

Advantages: - High-speed operation allows for quick data processing. - Dual flip-flop configuration provides versatility in circuit design. - Wide supply voltage range accommodates different power requirements.

Disadvantages: - Limited number of flip-flops may restrict complex circuit designs. - Not suitable for low-power applications due to higher power consumption compared to some alternative models.

Working Principles

The MC74HC74AFG operates based on the principles of digital logic. It utilizes positive-edge triggering to capture and store data. When the clock input receives a rising edge, the data present at the D inputs is transferred to the corresponding Q outputs. The stored data remains unchanged until the next clock cycle.

Detailed Application Field Plans

The MC74HC74AFG finds applications in various fields, including:

1. Digital Communication Systems: Used for data synchronization and signal processing in communication protocols.
2. Microcontroller Interfacing: Enables interfacing between microcontrollers and external devices, facilitating data transfer and control.
3. Memory Systems: Utilized in memory circuits for storing and retrieving binary data.
4. Industrial Automation: Employed in control systems for sequential logic operations and timing control.

Detailed and Complete Alternative Models

1. SN74HC74N: Similar dual D-type flip-flop IC with a wider operating temperature range (-55°C to +125°C).
2. CD4013BE: Dual D-type flip-flop IC with complementary outputs and a lower propagation delay of 10 ns.
3. MC14013BCL: Dual D-type flip-flop IC with Schmitt-trigger inputs for improved noise immunity.

These alternative models offer similar functionality to the MC74HC74AFG and can be considered based on specific application requirements.

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