Overview
The PCA9513ADP,118 is a hot swappable I2C-bus and SMBus buffer produced by NXP USA Inc. This component is designed to facilitate the insertion and removal of I/O cards into a live backplane without corrupting the data and clock buses. It is particularly useful in multipoint backplane applications where cards need to be inserted or removed dynamically.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | 8-TSSOP (TSSOP8) |
| Operating Power Supply Voltage | 2.7 V to 5.5 V |
| Clock Frequency | 0 Hz to 400 kHz |
| Current Source on SCLIN and SDAIN | 92 µA (PCA9513A only) |
| ESD Protection | Exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115, and 1000 V CDM per JESD22-C101 |
| Latch-up Testing | Exceeds 100 mA per JEDEC Standard JESD78 |
Key Features
- Hot swappable I2C-bus and SMBus buffer, allowing I/O card insertion into a live backplane without data corruption
- Control circuitry prevents backplane connection until a stop command or bus idle occurs, avoiding bus contention
- Bidirectional buffering, isolating backplane and card capacitances
- Rise time accelerator circuitry to meet rise time requirements with weaker DC pull-up currents
- Digital ENABLE input pin to control device activation and Low current mode
- Open-drain READY output pin to indicate backplane and card connection status
- Supports clock stretching and multiple master arbitration and synchronization
Applications
- cPCI, VME, AdvancedTCA cards, and other multipoint backplane cards that require dynamic insertion or removal from an operating system
- Useful in environments where hot-swapping of I/O cards is necessary without disrupting the system operation
Q & A
- What is the PCA9513ADP,118 used for?
The PCA9513ADP,118 is used as a hot swappable I2C-bus and SMBus buffer, allowing the insertion and removal of I/O cards into a live backplane without corrupting the data and clock buses.
- What is the operating voltage range of the PCA9513ADP,118?
The operating power supply voltage range is from 2.7 V to 5.5 V.
- What is the clock frequency range supported by the PCA9513ADP,118?
The clock frequency range is from 0 Hz to 400 kHz.
- Does the PCA9513ADP,118 have built-in current sources for SCLIN and SDAIN pins?
Yes, the PCA9513A version of this component includes a 92 µA current source on SCLIN and SDAIN pins.
- What kind of ESD protection does the PCA9513ADP,118 offer?
The component exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115, and 1000 V CDM per JESD22-C101 in terms of ESD protection.
- What is the purpose of the ENABLE and READY pins on the PCA9513ADP,118?
The ENABLE pin controls the device activation and forces it into a Low current mode when asserted LOW. The READY pin indicates whether the backplane and card sides are connected.
- Can the PCA9513ADP,118 support multiple masters on the I2C bus?
Yes, it supports multiple master arbitration and synchronization.
- What types of applications is the PCA9513ADP,118 typically used in?
It is typically used in cPCI, VME, AdvancedTCA cards, and other multipoint backplane applications where dynamic insertion or removal of cards is necessary.
- What package type is the PCA9513ADP,118 available in?
The component is available in an 8-TSSOP (TSSOP8) package.
- Does the PCA9513ADP,118 have any specific features for noise margin?
Yes, it has a rise time accelerator threshold set to 0.8 V to provide better noise margin.
