SN74ACT74D

Product Overview

• Category: Integrated Circuit (IC)
• Use: Flip-Flop
• Characteristics: Dual D-Type Positive-Edge-Triggered Flip-Flop
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Digital Logic IC for storing and transferring binary data
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• High-Level Input Voltage: 2V to VCC + 0.5V
• 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

The SN74ACT74D has a total of 14 pins, which are assigned specific functions as follows:

1. CLR (Clear) - Active LOW input used to reset the flip-flop.
2. D (Data) - Data input for the flip-flop.
3. CLK (Clock) - Input signal that triggers the flip-flop on the rising edge.
4. Q (Output) - Normal output of the flip-flop.
5. Q̅ (Complementary Output) - Inverted output of the flip-flop.
6. GND (Ground) - Ground reference for the IC.
7. Q̅ (Complementary Output) - Inverted output of the flip-flop.
8. Q (Output) - Normal output of the flip-flop.
9. VCC (Positive Power Supply) - Positive power supply for the IC.
10. D (Data) - Data input for the flip-flop.
11. CLR (Clear) - Active LOW input used to reset the flip-flop.
12. CLK (Clock) - Input signal that triggers the flip-flop on the rising edge.
13. GND (Ground) - Ground reference for the IC.
14. VCC (Positive Power Supply) - Positive power supply for the IC.

Functional Features

• Dual D-Type Flip-Flop: The SN74ACT74D consists of two independent D-type flip-flops in a single package.
• Positive-Edge Triggered: The flip-flop is triggered by the rising edge of the clock signal.
• Asynchronous Clear: The flip-flop can be reset to a known state using the clear input.
• Complementary Outputs: The flip-flop provides both normal and inverted outputs.

Advantages and Disadvantages

Advantages: - Compact Design: The dual flip-flop functionality in a single package saves board space. - Versatile: Can be used in various digital logic applications. - High-Speed Operation: Suitable for high-frequency clock signals.

Disadvantages: - Limited Functionality: Only supports positive-edge triggering and asynchronous clearing. - Power Consumption: May consume more power compared to alternative models with lower power requirements.

Working Principles

The SN74ACT74D operates based on the principles of sequential logic. It stores and transfers binary data using two D-type flip-flops. The flip-flop is triggered by the rising edge of the clock signal, allowing the input data to be latched and stored in the flip-flop. The stored data is then available at the output pins until the next clock cycle.

Detailed Application Field Plans

The SN74ACT74D can be used in various applications, including but not limited to: - Digital Counters - Frequency Dividers - Data Storage Systems - State Machines - Synchronization Circuits

Detailed and Complete Alternative Models

Some alternative models to the SN74ACT74D include: - CD4013B: Dual D-Type Flip-Flop with complementary outputs. - 74HC74: Dual D-Type Flip-Flop with asynchronous clear and preset inputs. - MC74ACT74: Dual D-Type Flip-Flop with Schmitt-trigger inputs.

These alternative models offer similar functionality but may have different specifications, pin configurations, or package options.

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