SN74AHC74D

Product Overview

• Category: Integrated Circuit (IC)
• Use: Flip-Flop
• Characteristics: High-speed, low-power, dual D-type positive-edge-triggered flip-flop
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Digital logic component used for storing and transferring binary data
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2V to 5.5V
• High-Level Input Voltage: 0.7 x VCC
• Low-Level Input Voltage: 0.3 x VCC
• High-Level Output Current: -8mA
• Low-Level Output Current: 8mA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74AHC74D has a total of 14 pins, which are assigned as follows:

1. CLR (Clear) - Clear input
2. D (Data) - Data input
3. CLK (Clock) - Clock input
4. PR (Preset) - Preset input
5. Q (Output) - Output
6. Q̅ (Complementary Output) - Complementary output
7. GND (Ground) - Ground reference
8. Q̅ (Complementary Output) - Complementary output
9. Q (Output) - Output
10. PR (Preset) - 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 positive-edge-triggered flip-flop with clear and preset inputs
• High-speed operation, suitable for applications requiring fast data transfer
• Low power consumption, making it energy-efficient
• Clear and preset inputs allow for easy initialization of the flip-flop
• Complementary outputs provide both inverted and non-inverted signals

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data transfer - Low power consumption reduces energy usage - Clear and preset inputs facilitate easy initialization - Complementary outputs offer flexibility in signal processing

Disadvantages: - Limited voltage supply range (2V to 5.5V) - Output current limitations may restrict certain applications - Requires careful handling due to small package size

Working Principles

The SN74AHC74D is a dual D-type positive-edge-triggered flip-flop. It stores and transfers binary data based on the rising edge of the clock input. The clear and preset inputs allow for initialization of the flip-flop, while the complementary outputs provide both inverted and non-inverted versions of the stored data.

Detailed Application Field Plans

The SN74AHC74D can be used in various digital systems and applications, including but not limited to: - Data storage and transfer circuits - Counters and frequency dividers - State machines and sequential logic circuits - Microcontrollers and microprocessors - Communication systems and protocols

Detailed and Complete Alternative Models

1. SN74AHC74: Similar to SN74AHC74D, but available in different package options (e.g., TSSOP, PDIP)
2. MC74AHC74: Equivalent flip-flop from a different manufacturer (Motorola)
3. CD74AHC74: Alternative flip-flop with similar specifications (Texas Instruments)

These alternative models offer similar functionality and can be used as replacements or substitutes for the SN74AHC74D in various applications.

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