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SN74LS378NSRE4
Product Overview
Category
SN74LS378NSRE4 belongs to the category of integrated circuits (ICs).
Use
This IC is commonly used in digital electronics for various applications such as data storage, address decoding, and multiplexing.
Characteristics
- Low-power Schottky TTL technology
- 8-bit positive-edge triggered D-type flip-flop
- Wide operating voltage range: 4.75V to 5.25V
- High-speed operation: 33 MHz typical clock frequency
- Output drive capability: 10 LSTTL loads
- Available in surface mount package
Package
SN74LS378NSRE4 is available in a small outline integrated circuit (SOIC) package.
Essence
The essence of SN74LS378NSRE4 lies in its ability to store and manipulate digital information efficiently.
Packaging/Quantity
This IC is typically packaged in reels or tubes, with a quantity of 2500 units per reel or tube.
Specifications
- Supply Voltage Range: 4.75V to 5.25V
- Input Voltage Range: 0V to VCC
- Operating Temperature Range: -40°C to +85°C
- Output Current: ±4mA
- Propagation Delay Time: 15ns (max)
- Power Dissipation: 500mW (max)
Detailed Pin Configuration
- D0: Data input 0
- D1: Data input 1
- D2: Data input 2
- D3: Data input 3
- D4: Data input 4
- D5: Data input 5
- D6: Data input 6
- D7: Data input 7
- GND: Ground
- CP: Clock input
- MR: Master reset input
- Q0: Flip-flop output 0
- Q1: Flip-flop output 1
- Q2: Flip-flop output 2
- Q3: Flip-flop output 3
- VCC: Supply voltage
Functional Features
- Positive-edge triggered D-type flip-flop with 8-bit storage capacity
- Data inputs are latched on the rising edge of the clock signal
- Master reset input allows clearing all flip-flops to a low state
- Outputs provide the stored data at the outputs Q0-Q3
Advantages and Disadvantages
Advantages
- Low-power consumption due to Schottky TTL technology
- High-speed operation enables efficient data processing
- Wide operating voltage range ensures compatibility with various systems
- Compact SOIC package allows for space-saving designs
Disadvantages
- Limited storage capacity of 8 bits may not be sufficient for certain applications
- Propagation delay time may introduce timing issues in high-frequency systems
Working Principles
SN74LS378NSRE4 operates based on the positive-edge triggered D-type flip-flop design. The data inputs (D0-D7) are latched and stored when a rising edge is detected on the clock input (CP). The stored data can be accessed through the flip-flop outputs (Q0-Q3). The master reset input (MR) allows clearing all flip-flops to a low state.
Detailed Application Field Plans
SN74LS378NSRE4 finds applications in various digital systems, including but not limited to: - Address decoding circuits - Multiplexers - Data storage units - Control systems - Arithmetic logic units (ALUs)
Detailed and Complete Alternative Models
Some alternative models that offer similar functionality to SN74LS378NSRE4 include: - SN74LS175 - SN74LS273 - SN74LS374 - SN74LS670
These alternative models can be considered based on specific requirements and compatibility with the system design.
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Перечислите 10 распространенных вопросов и ответов, связанных с применением SN74LS378NSRE4 в технических решениях.
Sure! Here are 10 common questions and answers related to the application of SN74LS378NSRE4 in technical solutions:
Q: What is SN74LS378NSRE4? A: SN74LS378NSRE4 is a 4-bit universal shift register with parallel inputs and outputs, commonly used in digital systems.
Q: What are the key features of SN74LS378NSRE4? A: Some key features include asynchronous parallel load capability, serial input/output for cascading multiple devices, and compatibility with TTL logic levels.
Q: How can I use SN74LS378NSRE4 in my circuit design? A: You can use it as a shift register to store and shift data in your digital circuits, or as a parallel-to-serial or serial-to-parallel converter.
Q: What is the maximum clock frequency supported by SN74LS378NSRE4? A: The maximum clock frequency supported is typically around 25 MHz.
Q: Can I cascade multiple SN74LS378NSRE4 devices together? A: Yes, you can cascade multiple devices by connecting the serial output of one device to the serial input of the next device.
Q: Does SN74LS378NSRE4 require external power supply decoupling capacitors? A: Yes, it is recommended to use external decoupling capacitors near the power supply pins to ensure stable operation.
Q: What is the voltage supply range for SN74LS378NSRE4? A: The voltage supply range is typically between 4.75V and 5.25V.
Q: Can SN74LS378NSRE4 handle both positive and negative edge-triggered clocks? A: No, SN74LS378NSRE4 is only designed for positive edge-triggered clocks.
Q: What is the power consumption of SN74LS378NSRE4? A: The power consumption depends on various factors, but it is typically around 10-20 mW.
Q: Are there any specific precautions I should take while using SN74LS378NSRE4? A: It is important to ensure proper decoupling and bypassing of power supply pins, avoid exceeding maximum voltage and current ratings, and follow recommended operating conditions mentioned in the datasheet.
Please note that these answers are general and may vary depending on the specific application and requirements. Always refer to the datasheet and consult with technical experts for accurate information.