SN74LVC74APWT

Product Overview

• Category: Integrated Circuit (IC)
• Use: Flip-Flop
• Characteristics: Low-voltage, high-speed, dual D-type positive-edge-triggered flip-flop
• Package: TSSOP-14
• Essence: This IC is designed to store and transfer data in digital systems.
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• High-Level Input Voltage: 2V to VCC + 0.5V
• Low-Level Input Voltage: -0.5V to 0.8V
• High-Level Output Voltage: VCC - 0.4V
• Low-Level Output Voltage: 0.4V
• Maximum Operating Frequency: 100MHz
• Propagation Delay Time: 3.9ns (typical)

Detailed Pin Configuration

The SN74LVC74APWT has a total of 14 pins, which are assigned specific functions as follows:

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) - Non-complementary output
7. GND (Ground) - Ground reference
8. Q̅ (Output) - Non-complementary 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
• Independent data, clock, preset, and clear inputs for each flip-flop
• Asynchronous clear function to reset the flip-flop outputs
• Complementary and non-complementary outputs available
• High-speed operation with low power consumption
• Supports a wide supply voltage range

Advantages and Disadvantages

Advantages: - Low-voltage operation allows compatibility with various digital systems - High-speed performance enables efficient data transfer - Independent inputs provide flexibility in controlling the flip-flop behavior - Small package size saves board space

Disadvantages: - Limited number of flip-flops (dual) - Not suitable for applications requiring more than two flip-flops

Working Principles

The SN74LVC74APWT is a dual D-type positive-edge-triggered flip-flop. It stores and transfers data based on the clock signal. When the clock transitions from LOW to HIGH (positive edge), the data input is captured and stored in the flip-flop. The stored data is then available at the complementary (Q̅) and non-complementary (Q) outputs.

The flip-flop can be cleared asynchronously by applying a LOW signal to the CLR (clear) input. Similarly, a LOW signal on the PR (preset) input sets the flip-flop outputs to a predefined state. The independent inputs allow separate control of each flip-flop.

Detailed Application Field Plans

The SN74LVC74APWT is commonly used in various digital systems where data storage and transfer are required. Some specific application fields include:

1. Microcontrollers: Used for storing and transferring data between different components of a microcontroller.
2. Communication Systems: Employed in data transmission and reception circuits to synchronize and store incoming data.
3. Digital Signal Processing: Utilized in digital filters, modulators, and demodulators to store intermediate results.
4. Memory Systems: Integrated into memory modules to control read and write operations.

Detailed and Complete Alternative Models

1. SN74LVC74A: Similar to SN74LVC74APWT but available in a different package (SOIC-14).
2. MC74VHC74: Dual D-type flip-flop with similar characteristics but operates at a higher supply voltage range (2V to 6V).
3. CD4013B: Dual D-type flip-flop with complementary outputs, suitable for applications requiring higher operating frequencies.

These alternative models offer similar functionality and can be used as replacements based on specific requirements.

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