Encyclopedia Entry: 74ALVC244D,112
Product Overview
Category
The 74ALVC244D,112 belongs to the category of integrated circuits (ICs) and specifically falls under the family of logic gates.
Use
This product is commonly used in digital electronics for signal amplification, buffering, and level shifting purposes. It serves as a bidirectional octal buffer/line driver with 3-state outputs.
Characteristics
- Voltage Level: 2.7V to 3.6V
- Logic Family: ALVC
- Number of Channels: 8
- Output Type: 3-State
- Package Type: SOIC (Small Outline Integrated Circuit)
- Operating Temperature Range: -40°C to +85°C
Package and Quantity
The 74ALVC244D,112 is available in a standard SOIC package. Each package contains one unit of the IC.
Specifications
- Supply Voltage Range: 2.7V to 3.6V
- High-Level Input Voltage: 2.0V (minimum), 3.15V (maximum)
- Low-Level Input Voltage: 0.8V (minimum), 1.35V (maximum)
- High-Level Output Voltage: 2.4V (minimum), VCC (maximum)
- Low-Level Output Voltage: GND (minimum), 0.4V (maximum)
- Maximum Quiescent Supply Current: 10µA
- Maximum Propagation Delay Time: 5.5ns
Pin Configuration
The 74ALVC244D,112 has a total of 20 pins, which are assigned specific functions as follows:
- A1 - Input/Output Pin
- Y1 - Output Pin
- A2 - Input/Output Pin
- Y2 - Output Pin
- GND - Ground Pin
- A3 - Input/Output Pin
- Y3 - Output Pin
- A4 - Input/Output Pin
- Y4 - Output Pin
- VCC - Power Supply Pin
- Y5 - Output Pin
- A5 - Input/Output Pin
- Y6 - Output Pin
- A6 - Input/Output Pin
- Y7 - Output Pin
- A7 - Input/Output Pin
- Y8 - Output Pin
- OE - Output Enable Pin
- GND - Ground Pin
- A8 - Input/Output Pin
Functional Features
The 74ALVC244D,112 offers the following functional features:
- Bidirectional Buffering: It allows data transmission in both directions, making it suitable for bidirectional communication systems.
- 3-State Outputs: The IC provides three output states - high, low, and high impedance (disconnected), allowing multiple devices to share a common bus without interference.
- Wide Voltage Range: With a voltage range of 2.7V to 3.6V, it can be easily integrated into various digital circuits operating at different voltage levels.
Advantages and Disadvantages
Advantages
- High-Speed Operation: The IC offers fast propagation delay times, enabling efficient signal processing.
- Low Power Consumption: With a maximum quiescent supply current of only 10µA, it helps conserve power in electronic systems.
- Compact Package: The SOIC package ensures easy integration and space-saving on PCBs.
Disadvantages
- Limited Voltage Range: The IC is not suitable for applications requiring higher voltage levels beyond its specified range.
- Sensitivity to ESD: Like most integrated circuits, the 74ALVC244D,112 is susceptible to damage from electrostatic discharge (ESD), requiring proper handling precautions.
Working Principles
The 74ALVC244D,112 operates based on the principles of digital logic gates. It utilizes transistors and other electronic components to amplify and buffer input signals, allowing for reliable data transmission between different parts of a digital circuit. The output enable pin (OE) controls the state of the outputs, enabling or disabling their functionality as required.
Application Field Plans
The 74ALVC244D,112 finds applications in various fields, including:
- Microcontroller Interfacing: It facilitates communication between microcontrollers and peripheral devices by providing buffering and level shifting capabilities.
- Data Buses: The IC is commonly used in bus systems to ensure efficient data transfer between multiple devices.
- Memory Systems: It helps interface memory modules with microprocessors, ensuring reliable data storage and retrieval.
- Communication Systems: The bidirectional nature of the IC makes it suitable for use in communication protocols such as I2C and SPI.
Alternative Models
For users seeking alternative options, the following models can be considered:
- SN74LVC244A: This IC offers
Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi 74ALVC244D,112 dalam penyelesaian teknikal
Sure! Here are 10 common questions and answers related to the application of 74ALVC244D,112 in technical solutions:
Q: What is the function of the 74ALVC244D,112? A: The 74ALVC244D,112 is an octal buffer/line driver with 3-state outputs. It is used to amplify and buffer digital signals.
Q: What is the voltage supply range for the 74ALVC244D,112? A: The voltage supply range for the 74ALVC244D,112 is typically between 1.65V and 3.6V.
Q: How many input/output pins does the 74ALVC244D,112 have? A: The 74ALVC244D,112 has 8 input pins and 8 output pins.
Q: Can the 74ALVC244D,112 be used for bidirectional communication? A: No, the 74ALVC244D,112 is a unidirectional buffer and cannot be used for bidirectional communication.
Q: What is the maximum output current that the 74ALVC244D,112 can drive? A: The 74ALVC244D,112 can typically drive up to 24mA of output current.
Q: Is the 74ALVC244D,112 compatible with TTL logic levels? A: Yes, the 74ALVC244D,112 is compatible with both TTL and CMOS logic levels.
Q: Can the 74ALVC244D,112 handle high-speed data transmission? A: Yes, the 74ALVC244D,112 is designed for high-speed operation and can handle fast data transmission.
Q: Does the 74ALVC244D,112 have built-in protection against electrostatic discharge (ESD)? A: Yes, the 74ALVC244D,112 has built-in ESD protection to prevent damage from static electricity.
Q: Can the 74ALVC244D,112 be used in automotive applications? A: Yes, the 74ALVC244D,112 is suitable for automotive applications as it meets the necessary standards and requirements.
Q: Are there any specific layout considerations when using the 74ALVC244D,112? A: Yes, it is recommended to follow the manufacturer's guidelines for proper PCB layout, including decoupling capacitors and signal integrity considerations.
Please note that these answers are general and may vary depending on the specific datasheet and application requirements of the 74ALVC244D,112.