DM74AS74SJ

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Flip-Flop
• Characteristics: High-speed, dual D-type positive-edge-triggered flip-flop
• Package: 14-pin plastic dual in-line package (DIP)
• Essence: Sequential logic device used for storing and transferring binary data
• Packaging/Quantity: Typically sold in reels or tubes containing multiple units

Specifications

• Supply Voltage: 4.75V to 5.25V
• Operating Temperature Range: -55°C to +125°C
• Input Voltage High (VIH): 2.0V min
• Input Voltage Low (VIL): 0.8V max
• Output Voltage High (VOH): 2.7V min
• Output Voltage Low (VOL): 0.5V max
• Propagation Delay Time: 12ns max
• Power Dissipation: 500mW max

Detailed Pin Configuration

1. CLR (Clear) - Active LOW input for clearing the flip-flop
2. D (Data) - Data input
3. CLK (Clock) - Positive-edge-triggered clock input
4. GND (Ground) - Ground reference
5. Q (Output) - Complementary output
6. Q̅ (Output) - Non-complementary output
7. PRE (Preset) - Active LOW input for setting the flip-flop
8. VCC (Supply Voltage) - Positive power supply

Functional Features

• Dual D-type flip-flop with individual clear and preset inputs
• Positive-edge-triggered operation
• High-speed operation suitable for applications requiring quick data transfer
• Wide operating temperature range allows usage in various environments
• Low power consumption for efficient energy usage

Advantages

• Provides a reliable and efficient solution for storing and transferring binary data
• High-speed operation enables quick processing of information
• Versatile operating temperature range allows usage in extreme conditions
• Low power consumption helps in reducing energy costs

Disadvantages

• Limited functionality compared to more advanced flip-flop designs
• Requires careful handling and static discharge precautions due to its sensitivity to electrostatic damage
• Availability may be limited in certain regions or markets

Working Principles

The DM74AS74SJ is a positive-edge-triggered flip-flop, meaning that the output changes only when a rising edge is detected on the clock input. The D-type flip-flop stores and transfers binary data based on the state of the clock signal. When the clock transitions from low to high, the value present at the D input is transferred to the Q and Q̅ outputs. The clear (CLR) and preset (PRE) inputs allow for additional control over the flip-flop's behavior.

Detailed Application Field Plans

• Digital electronics: Used in various digital systems such as computers, microcontrollers, and communication devices for data storage and synchronization purposes.
• Counters and registers: Incorporated into counters and shift registers to facilitate sequential counting and data shifting operations.
• Communication systems: Employed in communication protocols and interfaces to synchronize data transmission and reception.
• Control systems: Utilized in control circuits to store and transfer control signals for precise timing and sequencing.

Detailed and Complete Alternative Models

• SN74LS74A: Similar dual D-type flip-flop with slightly different electrical characteristics
• CD4013B: Dual D-type flip-flop with complementary outputs and higher voltage tolerance
• MC14013B: Dual D-type flip-flop with Schmitt trigger inputs for improved noise immunity

Note: This entry provides an overview of the DM74AS74SJ and its specifications. For detailed technical information, please refer to the manufacturer's datasheet.

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