SN74AHC74PW

Product Overview

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

Specifications

• Supply Voltage Range: 2 V to 5.5 V
• High-Level Input Voltage: 0.7 x VCC to VCC + 0.5 V
• Low-Level Input Voltage: -0.5 V to 0.3 x VCC
• High-Level Output Current: -8 mA
• Low-Level Output Current: 8 mA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74AHC74PW has a total of 14 pins:

1. CLR (Clear) - Active LOW clear input
2. D (Data) - Data input
3. CLK (Clock) - Clock input
4. PR (Preset) - Active LOW preset input
5. Q (Output) - Complementary output
6. Q̅ (Output) - True output
7. GND (Ground) - Ground reference
8. Q̅ (Output) - True output
9. Q (Output) - Complementary output
10. VCC (Supply Voltage) - Positive power supply
11. D (Data) - Data input
12. CLK (Clock) - Clock input
13. PR (Preset) - Active LOW preset input
14. CLR (Clear) - Active LOW clear input

Functional Features

• Dual D-type positive-edge-triggered flip-flop
• Non-inverting outputs
• Clear and preset inputs for synchronous operation
• High-speed operation with low power consumption
• Direct interface with TTL levels

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data manipulation - Low-power consumption reduces energy usage - Synchronous operation ensures reliable data storage and retrieval - Direct interface with TTL levels simplifies integration into existing systems

Disadvantages: - Limited voltage supply range (2 V to 5.5 V) - Not suitable for applications requiring negative-edge triggering - TSSOP package may be challenging for manual soldering

Working Principles

The SN74AHC74PW is a dual D-type positive-edge-triggered flip-flop. It stores binary data using two D inputs and transfers it to the outputs on the rising edge of the clock signal. The clear and preset inputs allow for synchronous clearing and setting of the flip-flop. The non-inverting outputs provide complementary and true representations of the stored data.

Detailed Application Field Plans

The SN74AHC74PW is commonly used in various digital systems, including:

1. Microcontrollers and microprocessors
2. Communication systems
3. Data storage devices
4. Industrial automation equipment
5. Automotive electronics

In microcontrollers and microprocessors, the flip-flop is utilized for storing intermediate results during calculations or as part of control logic. Communication systems employ it for buffering and synchronization purposes. Data storage devices utilize the flip-flop for address decoding and data routing. Industrial automation equipment uses it for timing and sequencing operations. In automotive electronics, the flip-flop is employed for various control functions.

Detailed and Complete Alternative Models

1. SN74AHC74PWR - Same specifications and features, but available in a different package (TSSOP Reel of 2000 units).
2. SN74AHC74DGVR - Same specifications and features, but available in a different package (TVSOP Reel of 3000 units).
3. SN74AHC74QDRQ1 - Same specifications and features, but designed for automotive applications (TSSOP Reel of 2500 units).

These alternative models provide flexibility in choosing the most suitable package or meeting specific application requirements.

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