SN74LV74ADG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Flip-Flop
• Characteristics: Low-voltage, dual D-type positive-edge-triggered flip-flop
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Reliable and efficient flip-flop for digital circuit applications
• Packaging/Quantity: Available in reels of 2500 units

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 - 0.5V
• Low-Level Output Voltage: 0.5V
• Maximum Operating Frequency: 125MHz
• Propagation Delay Time: 7.3ns (typical)

Detailed Pin Configuration

The SN74LV74ADG4 has a total of 14 pins, which are assigned 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

• Positive-edge-triggered flip-flop
• Dual D-type flip-flop with clear and preset inputs
• Low-voltage operation suitable for battery-powered devices
• High noise immunity and latch-up performance
• Wide supply voltage range for compatibility with various systems

Advantages and Disadvantages

Advantages: - Low-voltage operation allows for energy-efficient designs - Dual flip-flop configuration provides flexibility in circuit design - High noise immunity ensures reliable operation in noisy environments - Compact SOIC package enables space-saving integration

Disadvantages: - Limited maximum operating frequency compared to some alternatives - Lack of additional advanced features found in more specialized flip-flops

Working Principles

The SN74LV74ADG4 is a positive-edge-triggered flip-flop, meaning it captures the input data on the rising edge of the clock signal. It consists of two D-type flip-flops with clear and preset inputs. The clear input asynchronously resets the flip-flop, while the preset input sets the flip-flop to a predefined state.

The flip-flop operates within a wide supply voltage range of 1.65V to 5.5V, making it suitable for various digital circuit applications. Its low-voltage operation allows for energy-efficient designs, particularly in battery-powered devices.

Detailed Application Field Plans

The SN74LV74ADG4 is commonly used in digital circuits where reliable storage of binary information is required. Some specific application fields include:

1. Microcontrollers: Used as a building block for register-based operations.
2. Communication Systems: Employed in data synchronization and buffering circuits.
3. Consumer Electronics: Integrated into digital clocks, timers, and remote controls.
4. Automotive Electronics: Utilized in vehicle control units and dashboard displays.
5. Industrial Automation: Incorporated in programmable logic controllers (PLCs) and control systems.

Detailed and Complete Alternative Models

1. SN74LV74A: Similar to SN74LV74ADG4 but available in a different package (TSSOP).
2. CD4013B: Dual D-type flip-flop with similar functionality but operates at higher voltages.
3. MC74HC74A: High-speed dual D-type flip-flop with complementary outputs.

These alternative models offer similar functionality and can be considered as replacements for the SN74LV74ADG4 based on specific requirements and design constraints.

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