SN74HC74DE4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Flip-Flop
• Characteristics: High-speed, dual D-type flip-flop with set and reset
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Digital logic component for storing and manipulating binary data
• Packaging/Quantity: Tape and Reel, 2500 units per reel

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

The SN74HC74DE4 has a total of 14 pins, each serving a specific function:

1. CLR (Clear) - Active LOW input for resetting the flip-flop
2. D (Data) - Input for the data to be stored in the flip-flop
3. CLK (Clock) - Input for the clock signal that triggers the flip-flop
4. PR (Preset) - Active LOW input for setting the flip-flop
5. Q (Output) - Output for the stored data
6. Q̅ (Complementary Output) - Complementary output for the stored data
7. GND (Ground) - Ground reference for the IC
8. Q̅ (Complementary Output) - Complementary output for the stored data
9. Q (Output) - Output for the stored data
10. VCC (Positive Power Supply) - Positive power supply for the IC
11. D (Data) - Input for the data to be stored in the flip-flop
12. CLK (Clock) - Input for the clock signal that triggers the flip-flop
13. PR (Preset) - Active LOW input for setting the flip-flop
14. CLR (Clear) - Active LOW input for resetting the flip-flop

Functional Features

• Dual D-type flip-flop with independent set and reset inputs
• High-speed operation, suitable for applications requiring quick data storage and retrieval
• Wide supply voltage range allows compatibility with various digital systems
• Complementary outputs provide flexibility in circuit design

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data processing - Independent set and reset inputs offer versatile functionality - Wide supply voltage range enhances compatibility

Disadvantages: - Limited number of flip-flops per IC package - Requires external clock signal for proper operation

Working Principles

The SN74HC74DE4 is a dual D-type flip-flop that stores binary data using positive-edge triggered clock signals. The flip-flop has two inputs, D (data) and CLK (clock), which control the storage and retrieval of data. The CLR (clear) and PR (preset) inputs allow for resetting and setting the flip-flop, respectively. The stored data can be accessed through the Q and Q̅ outputs.

Detailed Application Field Plans

The SN74HC74DE4 is commonly used in various digital systems and applications, including:

1. Sequential logic circuits
2. Data storage and retrieval systems
3. Counters and frequency dividers
4. State machines and control units
5. Communication systems

Detailed and Complete Alternative Models

1. SN74HC74N: Similar to SN74HC74DE4 but in a DIP (Dual Inline Package) format.
2. MC74HC74A: Dual D-type flip-flop with complementary outputs and preset/clear inputs.
3. CD4013BE: CMOS dual D-type flip-flop with complementary outputs and set/reset inputs.

These alternative models offer similar functionality and can be used as substitutes for the SN74HC74DE4 in various applications.

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