SN74HCT74NG4

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 DIP (Dual In-line Package)
• Essence: Sequential logic device used for storing and transferring binary data
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage Range: 2V to 6V
• High-Level Input Voltage: 2V to VCC
• Low-Level Input Voltage: GND to 0.8V
• High-Level Output Current: -4mA
• Low-Level Output Current: 4mA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

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 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
• Non-inverting outputs
• Asynchronous clear and preset inputs
• Edge-triggered clock input
• Direct set and reset functionality
• Wide operating voltage range
• High-speed operation
• Low power consumption

Advantages and Disadvantages

Advantages

• High-speed operation allows for efficient data transfer
• Low power consumption helps in reducing energy usage
• Dual flip-flop design provides flexibility in circuit implementation
• Wide operating voltage range enables compatibility with various systems

Disadvantages

• Limited number of flip-flops per package (dual flip-flop)
• Requires external components for complete functionality in complex circuits

Working Principles

The SN74HCT74NG4 is a dual D-type positive-edge-triggered flip-flop. It stores and transfers binary data based on the clock input signal. The flip-flop has two outputs, Q and Q̅, which are complementary to each other. The state of the flip-flop can be cleared or preset using the CLR and PR inputs, respectively. The flip-flop operates at high speed and consumes low power, making it suitable for various digital applications.

Detailed Application Field Plans

The SN74HCT74NG4 flip-flop finds applications in various digital systems, including:

1. Data storage and transfer in microcontrollers and microprocessors
2. Register and counter circuits in digital communication systems
3. Timing and synchronization circuits in digital signal processing
4. Control and sequencing circuits in industrial automation
5. Memory address decoding in computer systems
6. Clock division and frequency multiplication circuits in clock generators

Detailed and Complete Alternative Models

1. SN74HC74N: Similar dual D-type positive-edge-triggered flip-flop with slightly different characteristics
2. CD4013BE: Dual D-type flip-flop with set and reset functionality
3. 74LS74: Dual D-type flip-flop with TTL logic levels
4. MC74HC74AN: Dual D-type flip-flop with higher operating temperature range

These alternative models offer similar functionality and can be used as replacements for the SN74HCT74NG4 in various applications.

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