PCA9514AD,112
Basic Information Overview
- Category: Integrated Circuit (IC)
- Use: Level shifting and voltage translation between different I2C bus systems
- Characteristics:
- Bidirectional voltage-level translator for I2C-bus and SMBus applications
- Supports I2C Fast Mode Plus (Fm+) with a data rate of up to 1 Mbps
- Compatible with both 3.3V and 5V systems
- Package: SOIC (Small Outline Integrated Circuit)
- Essence: Facilitates communication between devices operating at different voltage levels
- Packaging/Quantity: Tape and Reel, 2500 units per reel
Specifications
- Supply Voltage Range: 2.3V to 5.5V
- Operating Temperature Range: -40°C to +85°C
- Input Low Voltage (VIL): 0.8V max
- Input High Voltage (VIH): 1.7V min
- Output Low Voltage (VOL): 0.4V max
- Output High Voltage (VOH): VCC - 0.4V min
Detailed Pin Configuration
The PCA9514AD,112 IC has a total of 8 pins arranged as follows:
___________
SDA |1 8| VCC
SCL |2 7| OE#
GND |3 6| SDA_EXT
| |
GND |4_________5| SCL_EXT
Functional Features
- Bidirectional voltage-level translation between two I2C buses operating at different voltages
- Automatic direction sensing and control
- Provides bidirectional buffering and level shifting for clock (SCL) and data (SDA) lines
- Supports multiple devices on the same I2C bus
Advantages
- Enables communication between devices operating at different voltage levels
- Supports high-speed data transfer up to 1 Mbps
- Compatible with both 3.3V and 5V systems
- Automatic direction sensing simplifies system design
Disadvantages
- Limited to I2C and SMBus applications only
- Requires careful consideration of voltage compatibility between connected devices
Working Principles
The PCA9514AD,112 is a bidirectional voltage-level translator designed specifically for I2C-bus and SMBus applications. It allows devices operating at different voltage levels to communicate seamlessly by providing level shifting and buffering for the clock and data lines. The IC automatically senses the direction of data flow and adjusts the voltage levels accordingly.
Detailed Application Field Plans
The PCA9514AD,112 is widely used in various applications where voltage translation between different I2C bus systems is required. Some common application fields include: - Consumer electronics - Industrial automation - Automotive systems - Medical devices - Telecommunications equipment
Detailed and Complete Alternative Models
- PCA9306: Dual bidirectional I2C-bus and SMBus voltage-level translator
- TXB0108: 8-bit bidirectional voltage-level translator with automatic direction sensing
These alternative models offer similar functionality and can be considered as alternatives to the PCA9514AD,112 depending on specific requirements.
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기술 솔루션에 PCA9514AD,112 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.
Sure! Here are 10 common questions and answers related to the application of PCA9514AD,112 in technical solutions:
Q: What is PCA9514AD,112? A: PCA9514AD,112 is a level-translating I2C-bus repeater that provides bidirectional voltage-level translation between low-voltage (down to 0.9V) and higher-voltage (up to 5.5V) I2C-bus or SMBus applications.
Q: What is the purpose of using PCA9514AD,112 in a technical solution? A: PCA9514AD,112 is used to extend the range of I2C-bus or SMBus communication by translating voltage levels between devices operating at different voltage levels.
Q: How many channels does PCA9514AD,112 have? A: PCA9514AD,112 has four bidirectional channels, allowing it to translate voltage levels for up to four I2C-bus or SMBus devices.
Q: What is the maximum voltage level that PCA9514AD,112 can handle? A: PCA9514AD,112 can handle voltage levels up to 5.5V on the high-voltage side.
Q: Can PCA9514AD,112 be used with devices operating at voltages lower than 0.9V? A: No, PCA9514AD,112 is not designed to work with voltages lower than 0.9V.
Q: Does PCA9514AD,112 require external power supply? A: Yes, PCA9514AD,112 requires an external power supply connected to its VCC pin to operate.
Q: What is the maximum data rate supported by PCA9514AD,112? A: PCA9514AD,112 supports a maximum data rate of 400 kHz.
Q: Can PCA9514AD,112 be used in both I2C-bus and SMBus applications? A: Yes, PCA9514AD,112 is compatible with both I2C-bus and SMBus applications.
Q: Are there any specific layout considerations for using PCA9514AD,112? A: Yes, it is recommended to follow the layout guidelines provided in the datasheet to ensure proper performance and minimize signal integrity issues.
Q: Can PCA9514AD,112 be used in automotive applications? A: Yes, PCA9514AD,112 is qualified for automotive applications and can operate within the specified temperature range (-40°C to +125°C).
Please note that these answers are general and may vary depending on the specific requirements and use cases. It is always recommended to refer to the datasheet and consult with the manufacturer for detailed information and application-specific guidance.