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PCA9516AD,112
Basic Information Overview
- Category: Integrated Circuit (IC)
- Use: Level shifting and translating between different voltage levels in I2C bus systems
- Characteristics:
- Bidirectional voltage-level translator
- Supports I2C Fast Mode Plus (Fm+) with speeds up to 1 MHz
- Compatible with both 3.3V and 5V systems
- Provides buffering for unidirectional data transfer
- Package: SOIC (Small Outline Integrated Circuit)
- Essence: Facilitates communication between devices operating at different voltage levels in I2C bus systems
- Packaging/Quantity: Available in reels of 2500 units
Specifications
- Supply Voltage Range: 2.3V to 5.5V
- Operating Temperature Range: -40°C to +85°C
- Maximum Data Rate: 1 MHz
- Number of Channels: 2
- Input Low Voltage (VIL): 0.8V
- Input High Voltage (VIH): 1.8V
- Output Low Voltage (VOL): 0.4V
- Output High Voltage (VOH): VCC - 0.4V
Detailed Pin Configuration
The PCA9516AD,112 IC has a total of 8 pins arranged as follows:
___________
| |
1 | | 8
|___________|
Pin Description: 1. SDA1: I2C bidirectional data line for channel 1 2. SCL1: I2C clock line for channel 1 3. GND: Ground reference 4. OE: Output enable pin for channel 1 5. VCC: Positive supply voltage 6. SDA2: I2C bidirectional data line for channel 2 7. SCL2: I2C clock line for channel 2 8. VREF: Reference voltage for level shifting
Functional Features
- Bidirectional voltage-level translation between two I2C buses operating at different voltage levels
- Automatic direction sensing and data flow control
- Provides buffering to prevent bus lock-up during unidirectional data transfer
- Supports I2C Fast Mode Plus (Fm+) with speeds up to 1 MHz
- Compatible with both 3.3V and 5V systems
Advantages and Disadvantages
Advantages: - Enables communication between devices operating at different voltage levels in I2C bus systems - Supports high-speed data transfer - Provides automatic direction sensing and flow control
Disadvantages: - Limited to I2C bus applications - Requires additional components for level shifting in non-I2C applications
Working Principles
The PCA9516AD,112 is a bidirectional voltage-level translator designed specifically for I2C bus systems. It utilizes a combination of level shifting and buffering techniques to enable communication between devices operating at different voltage levels.
When an I2C bus transaction occurs, the PCA9516AD,112 automatically senses the direction of data flow and adjusts the voltage levels accordingly. It provides buffering to prevent bus lock-up during unidirectional data transfer.
The IC supports I2C Fast Mode Plus (Fm+) with speeds up to 1 MHz, allowing for efficient and high-speed data transfer between devices.
Detailed Application Field Plans
The PCA9516AD,112 is commonly used in various applications where level shifting and translating between different voltage levels in I2C bus systems are required. Some specific application fields include: - Consumer electronics - Industrial automation - Automotive systems - Medical devices - Communication equipment
Detailed and Complete Alternative Models
- PCA9306DCUR: Bidirectional I2C-bus and SMBus voltage-level translator
- TXB0108PWR: 8-bit bidirectional voltage-level translator with automatic direction sensing
These alternative models offer similar functionality and can be considered as alternatives to the PCA9516AD,112 depending on specific requirements and constraints.
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Énumérez 10 questions et réponses courantes liées à l'application de PCA9516AD,112 dans les solutions techniques
Sure! Here are 10 common questions and answers related to the application of PCA9516AD,112:
Q: What is PCA9516AD,112?
A: PCA9516AD,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 PCA9516AD,112 in a technical solution?
A: PCA9516AD,112 is used to enable communication between devices operating at different voltage levels on an I2C bus, ensuring compatibility and reliable data transfer.Q: What are the key features of PCA9516AD,112?
A: Some key features include automatic direction sensing, glitch-free power-up and power-down protection, and support for multiple masters and slaves on the bus.Q: Can PCA9516AD,112 be used with both 3.3V and 5V systems?
A: Yes, PCA9516AD,112 supports voltage translation between 3.3V and 5V systems, making it suitable for a wide range of applications.Q: How many devices can be connected to the I2C bus when using PCA9516AD,112?
A: PCA9516AD,112 allows multiple masters and slaves to be connected to the I2C bus, enabling a multi-device communication setup.Q: Does PCA9516AD,112 require external components for operation?
A: PCA9516AD,112 requires minimal external components, such as pull-up resistors, to function properly.Q: What is the maximum data rate supported by PCA9516AD,112?
A: PCA9516AD,112 supports a maximum data rate of 400 kHz, allowing for high-speed communication between devices.Q: Can PCA9516AD,112 be used in automotive applications?
A: Yes, PCA9516AD,112 is suitable for automotive applications as it operates over the extended temperature range and meets automotive EMC requirements.Q: How does PCA9516AD,112 handle bus faults or bus lock-up conditions?
A: PCA9516AD,112 incorporates a timeout feature that detects bus faults or lock-up conditions and automatically disconnects the faulty device to prevent bus contention.Q: Are there any application notes or reference designs available for PCA9516AD,112?
A: Yes, NXP provides application notes and reference designs that offer guidance on using PCA9516AD,112 in various technical solutions. These resources can be found on the NXP website.