MC74AC74DR2G

Product Overview

• Category: Integrated Circuit
• Use: Flip-Flop
• Characteristics: Dual D-Type Positive Edge-Triggered Flip-Flop
• Package: SOIC-14
• Essence: This integrated circuit is a dual D-type positive edge-triggered flip-flop, which means it can store and transfer data in digital systems.
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage Range: 2.0V to 6.0V
• High-Level Input Voltage: 2.0V to VCC
• Low-Level Input Voltage: -0.5V to 0.8V
• High-Level Output Current: -24mA
• Low-Level Output Current: 24mA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. CLR (Clear) - Clear input
2. D (Data) - Data input
3. CLK (Clock) - Clock input
4. Q (Output) - Output for first flip-flop
5. Q̅ (Inverted Output) - Inverted output for first flip-flop
6. GND (Ground) - Ground reference
7. Q (Output) - Output for second flip-flop
8. Q̅ (Inverted Output) - Inverted output for second flip-flop
9. PRE (Preset) - Preset input
10. PR̅E (Inverted Preset) - Inverted preset input
11. CLK (Clock) - Clock input
12. D (Data) - Data input
13. CLR (Clear) - Clear input
14. VCC (Supply Voltage) - Positive supply voltage

Functional Features

• Dual D-type flip-flop with clear and preset inputs
• Positive edge-triggered operation
• Direct implementation of flip-flop functions
• High-speed operation
• Wide supply voltage range

Advantages and Disadvantages

Advantages: - Dual flip-flop in a single package saves board space - Clear and preset inputs provide flexibility in controlling the flip-flop state - High-speed operation allows for efficient data transfer

Disadvantages: - Limited output current may restrict certain applications - Operating temperature range may not be suitable for extreme environments

Working Principles

The MC74AC74DR2G is a positive edge-triggered flip-flop, meaning it stores and transfers data on the rising edge of the clock signal. The D-type flip-flop has two stable states, "SET" and "RESET," which are determined by the inputs and clock signal. The clear and preset inputs allow for additional control over the flip-flop's state.

Detailed Application Field Plans

The MC74AC74DR2G can be used in various digital systems where data storage and transfer are required. Some potential application fields include:

1. Microcontrollers: Used to store and synchronize data between different components of a microcontroller.
2. Communication Systems: Facilitates data transmission and synchronization in communication protocols.
3. Digital Clocks: Enables the storage and display of time information in digital clocks and watches.
4. Memory Units: Used as building blocks in memory units to store and retrieve data.

Detailed and Complete Alternative Models

1. SN74AC74: Similar dual D-type positive edge-triggered flip-flop from Texas Instruments.
2. CD4013B: CMOS dual D-type flip-flop with similar functionality from ON Semiconductor.
3. 74HC74: High-speed CMOS dual D-type flip-flop from NXP Semiconductors.

(Note: This list is not exhaustive and there may be other alternative models available in the market.)

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