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Encyclopedia Entry: 74VHCT244D,118
Product Overview
Category
The 74VHCT244D,118 belongs to the category of integrated circuits (ICs) and specifically falls under the family of buffer/line drivers.
Use
This IC is commonly used for signal buffering and line driving applications in various electronic devices and systems.
Characteristics
- High-speed operation
- Low power consumption
- Wide operating voltage range
- Schmitt-trigger inputs for noise immunity
- 3-state outputs for bus-oriented applications
Package
The 74VHCT244D,118 is available in a standard 20-pin SOIC (Small Outline Integrated Circuit) package.
Essence
The essence of this product lies in its ability to provide reliable signal buffering and line driving capabilities, ensuring efficient and accurate data transmission within electronic circuits.
Packaging/Quantity
The 74VHCT244D,118 is typically packaged in reels or tubes, with each reel/tube containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the manufacturer.
Specifications
- Supply Voltage Range: 2.0V to 5.5V
- Input Voltage Range: 0V to VCC
- Output Voltage Range: 0V to VCC
- Operating Temperature Range: -40°C to +85°C
- Maximum Propagation Delay: 6 ns
- Maximum Quiescent Current: 4 μA
Detailed Pin Configuration
The 74VHCT244D,118 features a total of 20 pins, which are assigned specific functions as follows:
- Pin 1: Output Enable (OE)
- Pin 2: Input/Output (IO1)
- Pin 3: Input/Output (IO2)
- Pin 4: Input/Output (IO3)
- Pin 5: Input/Output (IO4)
- Pin 6: Input/Output (IO5)
- Pin 7: Ground (GND)
- Pin 8: Input/Output (IO6)
- Pin 9: Input/Output (IO7)
- Pin 10: Input/Output (IO8)
- Pin 11: Input/Output (IO9)
- Pin 12: Input/Output (IO10)
- Pin 13: Input/Output (IO11)
- Pin 14: Input/Output (IO12)
- Pin 15: Input/Output (IO13)
- Pin 16: Supply Voltage (VCC)
- Pin 17: Input/Output (IO14)
- Pin 18: Input/Output (IO15)
- Pin 19: Input/Output (IO16)
- Pin 20: Output Enable (OE)
Functional Features
- Buffering and line driving capabilities for signal transmission
- Schmitt-trigger inputs provide noise immunity and improve signal integrity
- 3-state outputs allow for bus-oriented applications, enabling multiple devices to share a common data bus
- High-speed operation ensures efficient data transfer
Advantages and Disadvantages
Advantages
- Low power consumption makes it suitable for battery-powered devices
- Wide operating voltage range allows compatibility with various systems
- Schmitt-trigger inputs enhance noise immunity, ensuring reliable signal processing
- 3-state outputs enable efficient bus sharing in multi-device configurations
Disadvantages
- Limited number of input/output channels (16 in total)
- Propagation delay may affect real-time applications requiring instantaneous response
Working Principles
The 74VHCT244D,118 operates by receiving input signals through its input pins and buffering them to the corresponding output pins. The Schmitt-trigger inputs help in reducing noise and maintaining signal integrity. The 3-state outputs allow the IC to be effectively connected to a shared data bus, enabling multiple devices to communicate without interference.
Detailed Application Field Plans
The 74VHCT244D,118 finds applications in various electronic systems, including but not limited to: - Microcontrollers and microprocessors - Data communication systems - Industrial automation equipment - Automotive electronics - Consumer electronics
Detailed and Complete Alternative Models
Some alternative models that offer similar functionality to the 74VHCT244D,118 include: - SN74LVC244A by Texas Instruments - MC74VHC244 by ON Semiconductor - CD74HCT244 by Texas Instruments - 74ACT244 by Fairchild Semiconductor
These alternative models can be considered based on specific requirements and availability.
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10 سوال و پاسخ رایج مربوط به کاربرد 74VHCT244D,118 در راه حل های فنی را فهرست کنید
Sure! Here are 10 common questions and answers related to the application of 74VHCT244D,118 in technical solutions:
Q: What is the 74VHCT244D,118? A: The 74VHCT244D,118 is a high-speed octal buffer/line driver with 3-state outputs, commonly used in digital logic circuits.
Q: What is the operating voltage range for the 74VHCT244D,118? A: The operating voltage range for this IC is typically between 4.5V and 5.5V.
Q: How many channels does the 74VHCT244D,118 have? A: It has 8 channels, which means it can handle 8 separate input/output signals.
Q: What is the maximum output current that the 74VHCT244D,118 can drive? A: The maximum output current per channel is typically around 8mA.
Q: Can the 74VHCT244D,118 be used as a level shifter? A: Yes, it can be used as a level shifter to convert signals between different voltage levels.
Q: Does the 74VHCT244D,118 support bidirectional communication? A: No, it is a unidirectional buffer/line driver, meaning it can only drive signals in one direction.
Q: What is the propagation delay of the 74VHCT244D,118? A: The typical propagation delay is around 6ns, making it suitable for high-speed applications.
Q: Can I connect multiple 74VHCT244D,118 ICs together to increase the number of channels? A: Yes, you can connect multiple ICs in parallel to increase the number of channels.
Q: Is the 74VHCT244D,118 compatible with TTL logic levels? A: Yes, it is compatible with both TTL and CMOS logic levels, making it versatile for various applications.
Q: What are some common applications for the 74VHCT244D,118? A: It is commonly used in bus drivers, memory address drivers, and general-purpose digital signal buffering applications.
Please note that the answers provided here are general and may vary depending on specific datasheet specifications and application requirements.