Overview
The PCA9514ADP,118 is a hot swappable I2C-bus and SMBus buffer produced by NXP USA Inc. This integrated circuit is designed to facilitate the insertion or removal of I/O cards from a live backplane without corrupting the data and clock buses. It features bidirectional buffering, which isolates the card capacitance from the backplane, ensuring smooth and reliable operation in various multipoint backplane systems.
Key Specifications
| Parameter | Description |
|---|---|
| Manufacturer | NXP USA Inc. |
| Part Number | PCA9514ADP,118 |
| Category | Integrated Circuits (ICs) |
| Package / Case | 8-TSSOP (0.154", 3.90mm Width) |
| Supply Voltage | 2.7 V ~ 5.5 V |
| Operating Temperature | -40°C ~ 85°C |
| Number of Channels | 1 |
| Input/Output | 2-Wire Bus |
| Data Rate (Max) | 400 kHz |
| Supply Current | 3.5 mA |
| Input Capacitance | 1.9 pF |
Key Features
- Hot Swappable: Allows I/O card insertion or removal from a live backplane without data corruption.
- Bidirectional Buffering: Isolates card capacitance from the backplane, reducing the load on the backplane.
- Rise Time Accelerator: Enables the use of weaker DC pull-up currents while meeting rise time requirements.
- Digital ENABLE Input: Enables the device when asserted HIGH and forces it into a low current mode when asserted LOW.
- READY Output Pin: Indicates whether the backplane and card sides are connected.
- ESD Protection: Exceeds 2000 V HBM, 200 V MM, and 1000 V CDM.
- Support for Clock Stretching and Multiple Master Arbitration: Ensures robust I2C and SMBus operation.
Applications
- cPCI, VME, AdvancedTCA Cards: Ideal for multipoint backplane cards that need to be inserted or removed from an operating system.
- Industrial and Automotive Systems: Suitable for applications requiring reliable and hot swappable I2C and SMBus interfaces.
- Embedded Systems: Used in various embedded systems where hot swappable capabilities are essential.
Q & A
- What is the primary function of the PCA9514ADP,118?
The PCA9514ADP,118 is a hot swappable I2C-bus and SMBus buffer designed to allow I/O card insertion or removal from a live backplane without corrupting the data and clock buses. - What is the operating voltage range of the PCA9514ADP,118?
The operating voltage range is 2.7 V to 5.5 V. - What is the maximum data rate supported by the PCA9514ADP,118?
The maximum data rate is 400 kHz. - What type of package does the PCA9514ADP,118 come in?
The PCA9514ADP,118 comes in an 8-TSSOP package. - What is the purpose of the digital ENABLE input pin?
The digital ENABLE input pin enables the device when asserted HIGH and forces it into a low current mode when asserted LOW. - What does the READY output pin indicate?
The READY output pin indicates whether the backplane and card sides are connected. - Does the PCA9514ADP,118 support clock stretching and multiple master arbitration?
Yes, it supports clock stretching and multiple master arbitration. - What is the operating temperature range of the PCA9514ADP,118?
The operating temperature range is -40°C to 85°C. - What kind of ESD protection does the PCA9514ADP,118 offer?
The PCA9514ADP,118 offers ESD protection exceeding 2000 V HBM, 200 V MM, and 1000 V CDM. - In what types of systems is the PCA9514ADP,118 commonly used?
It is commonly used in cPCI, VME, AdvancedTCA cards, and other multipoint backplane systems.
