SN74ALS74ANSR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Flip-Flop
• Characteristics: Dual D-Type Positive-Edge-Triggered Flip-Flop with Clear and Preset
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: The SN74ALS74ANSR is a versatile flip-flop IC that can store and manipulate digital data. It is widely used in various electronic devices and systems.
• Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel.

Specifications

• Supply Voltage: 4.5V to 5.5V
• Logic Family: ALS (Advanced Low-Power Schottky)
• Number of Flip-Flops: 2
• Trigger Type: Positive Edge
• Clear and Preset Inputs: Yes
• Operating Temperature Range: -40°C to 85°C
• Propagation Delay: 9 ns (typical)

Detailed Pin Configuration

The SN74ALS74ANSR has a total of 14 pins, which are assigned specific functions as follows:

1. CLR (Clear) - Active-Low Clear Input
2. D1 (Data Input 1) - Data Input for Flip-Flop 1
3. CP1 (Clock Pulse 1) - Clock Input for Flip-Flop 1
4. PR1 (Preset 1) - Active-Low Preset Input for Flip-Flop 1
5. Q1 (Output 1) - Output of Flip-Flop 1
6. Q̅1 (Complementary Output 1) - Complementary Output of Flip-Flop 1
7. GND (Ground) - Ground Reference
8. Q̅2 (Complementary Output 2) - Complementary Output of Flip-Flop 2
9. Q2 (Output 2) - Output of Flip-Flop 2
10. PR2 (Preset 2) - Active-Low Preset Input for Flip-Flop 2
11. CP2 (Clock Pulse 2) - Clock Input for Flip-Flop 2
12. D2 (Data Input 2) - Data Input for Flip-Flop 2
13. VCC (Supply Voltage) - Positive Power Supply
14. CLR̅ (Complementary Clear) - Complementary Clear Input

Functional Features

• Dual flip-flop design allows independent storage and manipulation of two separate data inputs.
• Positive-edge triggering ensures reliable and synchronized data capture.
• Clear and preset inputs provide control over the initial state of the flip-flops.
• Complementary outputs facilitate versatile logic operations and signal routing.

Advantages and Disadvantages

Advantages: - Versatile functionality suitable for a wide range of applications. - Low power consumption due to the ALS logic family. - Compact SOIC package enables space-efficient circuit designs. - Reliable performance across a wide temperature range.

Disadvantages: - Limited number of flip-flops per IC (only two in this case). - Lack of asynchronous set or reset inputs may limit certain application scenarios. - Not compatible with higher voltage supply ranges.

Working Principles

The SN74ALS74ANSR operates based on the principles of positive-edge-triggered flip-flops. When a rising edge is detected at the clock input (CP1 or CP2), the data present at the corresponding data input (D1 or D2) is captured and stored in the respective flip-flop. The clear and preset inputs allow for initialization of the flip-flop states, while the complementary outputs provide inverted versions of the stored data. This IC operates within a specified voltage range and exhibits a propagation delay of approximately 9 ns.

Detailed Application Field Plans

The SN74ALS74ANSR finds applications in various digital systems, including but not limited to:

1. Sequential logic circuits
2. Data storage and retrieval systems
3. Counters and frequency dividers
4. State machines and control units
5. Communication devices and protocols
6. Microcontrollers and microprocessors
7. Digital signal processing (DSP) systems
8. Memory address decoding circuits

Detailed and Complete Alternative Models

1. SN74LS74AN: Similar dual flip-flop IC with slightly different characteristics.
2. CD4013BE: Dual D-Type Flip-Flop IC from another manufacturer.
3. MC74HC74AN: High-Speed CMOS Dual D Flip-Flop IC.
4. 74HCT74: Dual D-Type Flip-Flop IC compatible with higher voltage ranges.

These alternative models offer similar functionality and can be used as substitutes for the SN74ALS74ANSR depending on specific requirements and availability.

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