Encyclopedia Entry: 74ALVC245MTCX
Product Overview
Category
The 74ALVC245MTCX belongs to the category of integrated circuits (ICs) and specifically falls under the family of bus transceivers.
Use
This IC is commonly used for bidirectional level shifting between a 3.3V and 5V bus system. It enables seamless data transfer between devices operating at different voltage levels.
Characteristics
- Bidirectional voltage level shifting
- Supports both 3.3V and 5V systems
- High-speed operation
- Low power consumption
- Schmitt-trigger inputs for noise immunity
- 8-bit wide transceiver with tri-state outputs
Package
The 74ALVC245MTCX is available in a TSSOP (Thin Shrink Small Outline Package) package. This package offers a compact size, making it suitable for space-constrained applications.
Essence
The essence of the 74ALVC245MTCX lies in its ability to facilitate seamless bidirectional data transfer between systems operating at different voltage levels, ensuring compatibility and efficient communication.
Packaging/Quantity
The 74ALVC245MTCX is typically packaged in reels or tubes, containing a quantity of 250 units per reel/tube.
Specifications
- Supply Voltage Range: 1.2V to 5.5V
- Input Voltage Range: -0.5V to VCC + 0.5V
- Output Voltage Range: 0V to VCC
- Operating Temperature Range: -40°C to +85°C
- Propagation Delay: 4.5ns (max)
- Output Current: ±24mA
Detailed Pin Configuration
The 74ALVC245MTCX has a total of 20 pins, each serving a specific function. The pin configuration is as follows:
- OE (Output Enable)
- A1 (Data Input/Output)
- B1 (Data Input/Output)
- A2 (Data Input/Output)
- B2 (Data Input/Output)
- A3 (Data Input/Output)
- B3 (Data Input/Output)
- A4 (Data Input/Output)
- B4 (Data Input/Output)
- GND (Ground)
- B5 (Data Input/Output)
- A5 (Data Input/Output)
- B6 (Data Input/Output)
- A6 (Data Input/Output)
- B7 (Data Input/Output)
- A7 (Data Input/Output)
- B8 (Data Input/Output)
- A8 (Data Input/Output)
- VCC (Power Supply)
- DIR (Direction Control)
Functional Features
- Bidirectional data transfer between 3.3V and 5V systems
- Tri-state outputs for bus sharing
- Output enable control for flexible operation
- Schmitt-trigger inputs for noise immunity
- Wide operating voltage range for compatibility
Advantages and Disadvantages
Advantages
- Enables seamless communication between different voltage level systems
- High-speed operation for efficient data transfer
- Low power consumption for energy efficiency
- Noise immunity due to Schmitt-trigger inputs
- Compact package size for space-constrained applications
Disadvantages
- Limited to bidirectional level shifting only
- Requires careful consideration of voltage compatibility with connected devices
Working Principles
The 74ALVC245MTCX operates by utilizing a combination of transistors, logic gates, and level-shifting circuitry. It detects the input voltage levels and adjusts them accordingly to ensure proper data transfer between the 3.3V and 5V systems. The direction control pin (DIR) determines the direction of data flow, while the output enable pin (OE) enables or disables the outputs.
Detailed Application Field Plans
The 74ALVC245MTCX finds applications in various fields where bidirectional level shifting between 3.3V and 5V systems is required. Some common application areas include:
- Microcontroller interfacing
- Communication systems
- Industrial automation
- Robotics
- Automotive electronics
Detailed and Complete Alternative Models
There are several alternative models available that offer similar functionality to the 74ALVC245MTCX. Some notable alternatives include:
- SN74LVC245A
- MC74LVX245
- CD74HCT245
These alternatives can be considered based on specific requirements such as voltage range, speed, and package type.
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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi 74ALVC245MTCX dalam penyelesaian teknikal
Sure! Here are 10 common questions and answers related to the application of 74ALVC245MTCX in technical solutions:
Q: What is the function of the 74ALVC245MTCX? A: The 74ALVC245MTCX is an octal bus transceiver that can be used to enable bidirectional transfer of data between two buses.
Q: What is the voltage range supported by the 74ALVC245MTCX? A: The 74ALVC245MTCX supports a wide voltage range from 1.65V to 3.6V, making it compatible with various logic families.
Q: How many data lines can the 74ALVC245MTCX handle? A: The 74ALVC245MTCX can handle 8 data lines, as it is an octal (8-bit) bus transceiver.
Q: Can the 74ALVC245MTCX be used for level shifting between different voltage domains? A: Yes, the 74ALVC245MTCX can be used for level shifting between voltage domains, as long as the voltage levels are within its supported range.
Q: Does the 74ALVC245MTCX have any built-in protection features? A: Yes, the 74ALVC245MTCX has built-in ESD protection on all inputs and outputs, providing robustness against electrostatic discharge.
Q: Can the 74ALVC245MTCX be used in both synchronous and asynchronous applications? A: Yes, the 74ALVC245MTCX can be used in both synchronous and asynchronous applications, depending on the specific requirements.
Q: What is the maximum data transfer rate supported by the 74ALVC245MTCX? A: The 74ALVC245MTCX can support data transfer rates up to 400 Mbps, making it suitable for high-speed applications.
Q: Can the 74ALVC245MTCX be used in both input and output modes simultaneously? A: No, the 74ALVC245MTCX operates in either input or output mode at a given time, depending on the direction control signal.
Q: Is the 74ALVC245MTCX compatible with TTL logic levels? A: Yes, the 74ALVC245MTCX is compatible with TTL logic levels, as it has TTL-compatible inputs.
Q: What is the package type of the 74ALVC245MTCX? A: The 74ALVC245MTCX comes in a TSSOP (Thin Shrink Small Outline Package) package, which is compact and suitable for space-constrained designs.
Please note that these answers are general and may vary based on specific application requirements and datasheet specifications.