Encyclopedia Entry: 74ACT74SJ

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Flip-Flop
• Characteristics:
  • High-speed operation
  • Low power consumption
  • Wide operating voltage range
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Dual D-type Positive-Edge-Triggered Flip-Flop
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Output Current: ±24mA
• Propagation Delay Time: 6ns (typical)
• Set-up Time: 10ns (typical)
• Hold Time: 2ns (typical)

Detailed Pin Configuration

The 74ACT74SJ IC has a total of 14 pins, which are assigned as follows:

1. CLR (Clear) - Active LOW clear input
2. D (Data) - Data input for the flip-flop
3. CLK (Clock) - Clock input for triggering the flip-flop
4. Q (Output) - Complementary output
5. Q̅ (Output) - Non-complementary output
6. GND (Ground) - Ground reference
7. Q̅ (Output) - Non-complementary output
8. Q (Output) - Complementary output
9. VCC (Supply Voltage) - Positive supply voltage
10. PRE (Preset) - Active LOW preset input
11. D (Data) - Data input for the flip-flop
12. CLK (Clock) - Clock input for triggering the flip-flop
13. CLR (Clear) - Active LOW clear input
14. GND (Ground) - Ground reference

Functional Features

• Dual D-type positive-edge-triggered flip-flop
• Performs synchronous state changes on the rising edge of the clock signal
• Clear and preset inputs for initialization and control
• Complementary and non-complementary outputs for flexibility in circuit design
• High-speed operation allows for efficient data processing
• Low power consumption ensures energy efficiency
• Wide operating voltage range provides versatility in various applications

Advantages and Disadvantages

Advantages: - High-speed operation enables fast data processing - Low power consumption results in energy-efficient performance - Wide operating voltage range allows for versatile usage - Clear and preset inputs provide control over the flip-flop's initial state - Complementary and non-complementary outputs offer flexibility in circuit design

Disadvantages: - Limited to positive-edge-triggered functionality - May require additional components for complex circuit designs

Working Principles

The 74ACT74SJ is a dual D-type positive-edge-triggered flip-flop. It operates based on the rising edge of the clock signal, synchronously changing its state according to the input data. The clear and preset inputs allow for initialization and control of the flip-flop's initial state. The complementary and non-complementary outputs provide flexibility in circuit design.

Detailed Application Field Plans

The 74ACT74SJ IC finds application in various fields, including:

1. Digital Logic Circuits: Used as building blocks for sequential logic circuits, such as counters and registers.
2. Communication Systems: Employed in data transmission and reception circuits for synchronization and data storage purposes.
3. Microcontrollers and Microprocessors: Integrated into control units for handling data flow and synchronization between different components.
4. Industrial Automation: Utilized in control systems for timing and synchronization of processes.
5. Consumer Electronics: Incorporated in devices requiring memory elements for data storage and retrieval.

Detailed and Complete Alternative Models

1. 74ACT74MTCX: Similar to 74ACT74SJ, but available in TSSOP package.
2. SN74ACT74N: Equivalent flip-flop IC from Texas Instruments, available in DIP package.
3. CD74ACT74E: Comparable dual D-type flip-flop IC from Texas Instruments, offered in PDIP package.

(Note: The above alternative models are provided for reference and may have slight variations in specifications and pin configuration.)

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