SN74HC74DTG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Flip-Flop
• Characteristics: High-speed, dual D-type flip-flop with set and reset
• Package: TSSOP-14
• 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

1. CLR (Clear) - Active LOW input for resetting the flip-flop
2. PRE (Preset) - Active LOW input for setting the flip-flop
3. D1 (Data Input 1) - Data input for the first flip-flop
4. CLK (Clock) - Clock input for synchronizing the flip-flop operation
5. GND (Ground) - Ground reference for the IC
6. Q1 (Output 1) - Output of the first flip-flop
7. Q1' (Complementary Output 1) - Complementary output of the first flip-flop
8. VCC (Supply Voltage) - Positive supply voltage for the IC
9. Q2' (Complementary Output 2) - Complementary output of the second flip-flop
10. Q2 (Output 2) - Output of the second flip-flop
11. D2 (Data Input 2) - Data input for the second flip-flop
12. SET (Set) - Active LOW input for setting the flip-flop
13. CLK (Clock) - Clock input for synchronizing the flip-flop operation
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
• Edge-triggered design ensures reliable and synchronized output changes
• Complementary outputs provide flexibility in signal routing and logic implementation

Advantages and Disadvantages

Advantages

• Versatile component for digital logic circuits
• Compact package size allows for space-efficient designs
• Wide supply voltage range enables compatibility with various systems
• High-speed operation enhances overall system performance

Disadvantages

• Limited number of flip-flops per IC package
• Requires external clock signal for proper operation
• Sensitivity to noise and voltage fluctuations may affect reliability

Working Principles

The SN74HC74DTG4 is a dual D-type flip-flop that stores and manipulates binary data. It consists of two individual flip-flops, each with its own set (PRE) and reset (CLR) inputs. The flip-flops are edge-triggered, meaning they respond to changes in the clock (CLK) input signal.

When the clock signal transitions from low to high, the data present at the D1 and D2 inputs is transferred to the Q1 and Q2 outputs, respectively. The complementary outputs, Q1' and Q2', provide inverted versions of the main outputs. The set and reset inputs allow for manual control over the flip-flop state.

Detailed Application Field Plans

The SN74HC74DTG4 is widely used in various digital systems and applications, including:

1. Sequential logic circuits: The flip-flop's ability to store and propagate binary data makes it essential for building counters, registers, and other sequential logic circuits.
2. Data storage and retrieval: The flip-flop's high-speed operation and reliable output changes make it suitable for applications involving data storage, such as memory units and cache systems.
3. Clock synchronization: The edge-triggered design of the flip-flop ensures synchronized output changes, making it ideal for clock signal synchronization in digital systems.

Detailed and Complete Alternative Models

1. SN74HC74N: DIP-14 package variant of the SN74HC74DTG4
2. MC74HC74A: Alternative manufacturer offering a similar dual D-type flip-flop
3. CD4013B: CMOS-based dual D-type flip-flop with set and reset inputs

These alternative models provide similar functionality to the SN74HC74DTG4 and can be used as replacements depending on specific requirements and availability.

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