MC74VHC74MELG

Product Overview

• Category: Integrated Circuit
• Use: Flip-Flop
• Characteristics: High-Speed, Low-Power, Dual D-Type Positive-Edge-Triggered Flip-Flop
• Package: SOIC-14
• Essence: The MC74VHC74MELG is a dual D-type flip-flop with positive-edge triggering. It operates at high speed while consuming low power, making it suitable for various digital applications.
• Packaging/Quantity: The MC74VHC74MELG is available in a small outline integrated circuit (SOIC) package and is typically sold in reels of 2500 units.

Specifications

• Supply Voltage: 2.0V to 5.5V
• Input Voltage: -0.5V to VCC + 0.5V
• Output Voltage: -0.5V to VCC + 0.5V
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay: 4.3 ns (typical)
• Flip-Flop Type: D-Type
• Triggering: Positive Edge
• Number of Flip-Flops: 2

Pin Configuration

The MC74VHC74MELG has a total of 14 pins arranged as follows:

__ __ Q1 |1 \__/ 14| VCC Q2 |2 13| D1 D2 |3 12| CLK GND |4 11| CLR CP |5 10| PR Q1 |6 9| Q2 Q2 |7 8| D2 ‾‾ ‾‾

Functional Features

• Dual D-Type Flip-Flop: The MC74VHC74MELG consists of two independent D-type flip-flops, allowing for simultaneous operation or separate control.
• Positive-Edge Triggering: The flip-flop is triggered by a positive edge transition on the clock input (CLK).
• High-Speed Operation: With a typical propagation delay of 4.3 ns, the MC74VHC74MELG enables fast data processing.
• Low Power Consumption: This flip-flop operates at low power levels, making it suitable for battery-powered devices and energy-efficient applications.

Advantages and Disadvantages

Advantages: - High-speed operation allows for quick data processing. - Low power consumption makes it suitable for energy-efficient applications. - Dual flip-flop configuration provides flexibility in circuit design.

Disadvantages: - Limited number of flip-flops (2) may not be sufficient for complex applications requiring more storage elements. - Availability in SOIC package only may limit compatibility with certain circuit designs.

Working Principles

The MC74VHC74MELG is a positive-edge-triggered flip-flop. It stores and outputs digital data based on the rising edge of the clock signal (CLK). When the CLK input transitions from low to high, the data present at the D1 and D2 inputs are latched and stored in the respective flip-flops. The stored data can then be accessed from the Q1 and Q2 outputs. The CLR (clear) and PR (preset) inputs allow for resetting or setting the flip-flop outputs to specific states.

Detailed Application Field Plans

The MC74VHC74MELG can be used in various digital applications, including but not limited to:

1. Microcontrollers: The flip-flop can be utilized in microcontroller designs for storing and manipulating data.
2. Communication Systems: It can be employed in communication systems for signal synchronization and data buffering.
3. Digital Clocks: The MC74VHC74MELG can be used to build digital clock circuits, where it stores and updates time information.
4. Data Storage: It can be utilized in memory systems for temporary storage of data during processing.

Detailed and Complete Alternative Models

1. SN74LVC74A: Dual D-Type Positive-Edge-Triggered Flip-Flop with similar characteristics and pin configuration.
2. CD4013B: CMOS Dual D-Type Flip-Flop with positive-edge triggering and different package options.
3. 74HC74: High-Speed CMOS Logic Dual D-Type Flip-Flop with positive-edge triggering and wider supply voltage range.

These alternative models offer similar functionality and can be considered as substitutes for the MC74VHC74MELG based on specific requirements and availability.

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