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SN74AC74PW
Product Overview
- Category: Integrated Circuit (IC)
- Use: Flip-Flop
- Characteristics: Dual D-Type Positive-Edge-Triggered Flip-Flop
- Package: TSSOP (Thin Shrink Small Outline Package)
- Essence: Digital Logic IC for storing and transferring binary data
- Packaging/Quantity: Available in reels of 2500 units
Specifications
- Supply Voltage Range: 2V to 6V
- High-Level Input Voltage: 2V to VCC
- Low-Level Input Voltage: GND 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 SN74AC74PW has a total of 14 pins, which are assigned as follows:
- CLR (Clear) - Clear input pin
- D (Data) - Data input pin
- CLK (Clock) - Clock input pin
- PR (Preset) - Preset input pin
- Q (Output) - Output pin
- Q̅ (Complementary Output) - Complementary output pin
- GND (Ground) - Ground pin
- Q̅ (Complementary Output) - Complementary output pin
- Q (Output) - Output pin
- VCC (Positive Power Supply) - Positive power supply pin
- D (Data) - Data input pin
- CLK (Clock) - Clock input pin
- PR (Preset) - Preset input pin
- CLR (Clear) - Clear input pin
Functional Features
The SN74AC74PW is a dual D-type positive-edge-triggered flip-flop integrated circuit. It is designed to store and transfer binary data in digital systems. The positive-edge-triggered design ensures that the data is captured and stored on the rising edge of the clock signal. The flip-flop has a clear input (CLR) and a preset input (PR) for initializing the outputs to a known state. It operates within a wide supply voltage range of 2V to 6V, making it suitable for various applications.
Advantages and Disadvantages
Advantages: - Dual flip-flop configuration allows for efficient data storage and transfer - Positive-edge triggering ensures reliable operation - Wide supply voltage range enables compatibility with different systems - Compact TSSOP package offers space-saving benefits - High-level output current capability allows for driving external loads
Disadvantages: - Limited to positive-edge triggering, may not be suitable for certain applications requiring negative-edge triggering - Requires external components for proper functionality, such as resistors and capacitors - Sensitive to electrostatic discharge (ESD), necessitating proper handling during assembly and usage
Working Principles
The SN74AC74PW operates based on the principles of sequential logic. It consists of two D-type flip-flops, each triggered by the rising edge of the clock signal. When the clock signal transitions from low to high, the data present at the D input is transferred to the Q output. Simultaneously, the complementary output Q̅ reflects the inverse of the Q output. The CLR and PR inputs allow for clearing or presetting the outputs to specific states, respectively. The flip-flop's internal circuitry ensures stable and reliable data storage and transfer.
Detailed Application Field Plans
The SN74AC74PW finds applications in various digital systems where data storage and transfer are required. Some common application fields include:
- Microcontrollers: Used for storing and transferring control signals and data between different modules.
- Communication Systems: Employed in data transmission and reception circuits for buffering and synchronizing incoming data.
- Digital Counters: Utilized to store and update the count value in sequential counting circuits.
- Memory Modules: Integrated into memory systems to store address and control signals.
Detailed and Complete Alternative Models
- SN74AC74N: Similar to SN74AC74PW, but available in a DIP (Dual In-line Package) instead of TSSOP.
- MC74AC74DG: Equivalent dual D-type flip-flop IC from a different manufacturer, available in SOIC (Small Outline Integrated Circuit) package.
- CD4013BE: Dual D-type flip-flop IC with similar functionality, available in DIP package.
These alternative models offer similar features and can be used as replacements based on specific requirements and availability.
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Maglista ng 10 karaniwang tanong at sagot na nauugnay sa aplikasyon ng SN74AC74PW sa mga teknikal na solusyon
Sure! Here are 10 common questions and answers related to the application of SN74AC74PW:
Q: What is SN74AC74PW? A: SN74AC74PW is a dual D-type flip-flop integrated circuit (IC) that can store one bit of data in each flip-flop.
Q: What is the voltage supply range for SN74AC74PW? A: The voltage supply range for SN74AC74PW is typically between 2V and 6V.
Q: What is the maximum clock frequency supported by SN74AC74PW? A: SN74AC74PW can support clock frequencies up to 100 MHz.
Q: How many flip-flops are there in SN74AC74PW? A: SN74AC74PW has two independent D-type flip-flops.
Q: Can SN74AC74PW be used as a counter? A: Yes, SN74AC74PW can be used as a basic binary counter by connecting the output of one flip-flop to the input of the next.
Q: What is the setup time requirement for the data input in SN74AC74PW? A: The setup time requirement for the data input in SN74AC74PW is typically 10 ns.
Q: Is SN74AC74PW suitable for high-speed applications? A: Yes, SN74AC74PW is designed for high-speed operation and is commonly used in applications requiring fast data storage and retrieval.
Q: Can SN74AC74PW be cascaded to create larger registers? A: Yes, multiple SN74AC74PW ICs can be cascaded together to create larger registers or shift registers.
Q: What is the power supply current consumption of SN74AC74PW? A: The power supply current consumption of SN74AC74PW is typically around 10 mA.
Q: What are some typical applications for SN74AC74PW? A: SN74AC74PW is commonly used in digital systems, such as data storage, counters, frequency dividers, and general-purpose flip-flop applications.
Please note that the answers provided here are general and may vary depending on specific datasheet specifications and application requirements.