Деталі продукту див. у специфікаціях.
74LVT245D,118
Basic Information Overview
- Category: Integrated Circuit (IC)
- Use: Level Shifter/Transceiver
- Characteristics: High-speed, low-power, bidirectional voltage level translation
- Package: SOIC (Small Outline Integrated Circuit)
- Essence: Transfers data between devices operating at different voltage levels
- Packaging/Quantity: Tape and Reel, 2500 pieces per reel
Specifications
- Supply Voltage Range: 1.2V to 3.6V
- Input Voltage Range: 0V to VCC
- Output Voltage Range: 0V to VCC
- Operating Temperature Range: -40°C to +85°C
- Propagation Delay: 4.5ns (Max) at 3.3V
- Output Drive Capability: ±24mA
Detailed Pin Configuration
The 74LVT245D,118 IC has a total of 20 pins. The pin configuration is as follows:
__ __
A1 | 1 20 | VCC
A2 | 2 19 | B1
A3 | 3 18 | B2
A4 | 4 17 | B3
A5 | 5 16 | B4
A6 | 6 15 | B5
A7 | 7 14 | B6
GND | 8 13 | B7
OE | 9 12 | B8
DIR |10 11 | GND
‾‾ ‾‾
Functional Features
- Bidirectional voltage level translation between two independent buses
- Allows interfacing between devices operating at different voltage levels
- Supports both 3.3V and 5V systems
- Enables voltage level shifting without the need for external components
Advantages and Disadvantages
Advantages
- High-speed operation
- Low power consumption
- Wide supply voltage range
- Easy to use, no external components required
Disadvantages
- Limited output drive capability
- Not suitable for high-current applications
Working Principles
The 74LVT245D,118 is a bidirectional level shifter/transceiver that uses a direction control pin (DIR) to determine the data flow direction. When DIR is set to logic high, data is transferred from the A bus to the B bus. Conversely, when DIR is set to logic low, data is transferred from the B bus to the A bus. The OE (Output Enable) pin can be used to disable the outputs when not in use.
Detailed Application Field Plans
The 74LVT245D,118 is commonly used in various applications where voltage level translation is required. Some of the typical application fields include: - Interfacing between microcontrollers and peripheral devices operating at different voltage levels - Communication between different logic families (e.g., TTL and CMOS) - Level shifting in data communication systems - Signal conversion in mixed-voltage systems
Detailed and Complete Alternative Models
Some alternative models that provide similar functionality to the 74LVT245D,118 are: - SN74LVC245A: Similar bidirectional level shifter with 3-state outputs - CD4504B: Hex non-inverting level shifter with open-drain outputs - TXB0108: 8-bit bidirectional voltage-level translator with automatic direction sensing
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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням 74LVT245D,118 у технічних рішеннях
Sure! Here are 10 common questions and answers related to the application of 74LVT245D,118 in technical solutions:
Q: What is the function of the 74LVT245D,118? A: The 74LVT245D,118 is an octal bus transceiver that can be used for bidirectional level shifting between two voltage domains.
Q: What is the operating voltage range of the 74LVT245D,118? A: The 74LVT245D,118 operates within a voltage range of 1.65V to 3.6V.
Q: How many channels does the 74LVT245D,118 have? A: The 74LVT245D,118 has 8 bidirectional channels.
Q: Can the 74LVT245D,118 handle high-speed data transmission? A: Yes, the 74LVT245D,118 is designed to support high-speed data transmission up to 400Mbps.
Q: Is the 74LVT245D,118 compatible with both TTL and CMOS logic levels? A: Yes, the 74LVT245D,118 is compatible with both TTL and CMOS logic levels.
Q: Does the 74LVT245D,118 have any built-in protection features? A: Yes, the 74LVT245D,118 has built-in ESD protection on all inputs and outputs.
Q: Can the 74LVT245D,118 be used as a level shifter for I2C communication? A: Yes, the 74LVT245D,118 can be used as a level shifter for I2C communication between devices operating at different voltage levels.
Q: What is the maximum output current of the 74LVT245D,118? A: The 74LVT245D,118 can source or sink up to 32mA per channel.
Q: Can the 74LVT245D,118 be used in automotive applications? A: Yes, the 74LVT245D,118 is qualified for automotive applications and meets the necessary standards.
Q: Are there any specific layout considerations for using the 74LVT245D,118? A: Yes, it is recommended to follow the manufacturer's guidelines for proper decoupling, signal integrity, and thermal management during PCB layout.
Please note that these answers are general and may vary depending on the specific application and requirements. It is always advisable to refer to the datasheet and consult with the manufacturer for detailed information.