Overview
The PCA9513AD,118 is a hot swappable I²C-bus and SMBus buffer manufactured by NXP USA Inc. This component is designed to enhance the reliability and performance of I²C and SMBus systems, particularly in applications where cards or modules are frequently inserted or removed from an operating system.
It features a 92 µA current source on the SCLIN and SDAIN pins, which is ideal for multidrop bus applications and ensures a consistent RC time constant. The device supports clock stretching and multiple master arbitration and synchronization, making it suitable for complex bus systems.
Key Specifications
| Specification | Value |
|---|---|
| Package Type | SO8 (8-SOIC, 0.154", 3.90mm Width) |
| Operating Power Supply Voltage | 2.7 V to 5.5 V |
| Clock Frequency | 0 Hz to 400 kHz |
| Number of Channels | 1 |
| Input/Output Bus | 2-Wire Bus (I²C, SMBus) |
| Current Source on SCLIN and SDAIN | 92 µA |
| Operating Temperature | -40°C to +85°C |
| ESD Protection | 2000 V HBM, 200 V MM, 1000 V CDM |
Key Features
- Hot swappable I²C-bus and SMBus buffer, allowing for the insertion or removal of cards from an operating system without disrupting the bus.
- 92 µA current source on SCLIN and SDAIN pins for consistent RC time constants in multidrop bus applications.
- Supports clock stretching and multiple master arbitration and synchronization.
- Rise time accelerator circuitry with a threshold of 0.8 V to improve noise margin.
- High-impedance SDA and SCL pins when VCC = 0 V, and READY open-drain output.
- ESD protection exceeding 2000 V HBM, 200 V MM, and 1000 V CDM.
Applications
- cPCI, VME, AdvancedTCA cards, and other multipoint backplane cards that require hot-swapping capabilities.
- Industrial and automotive systems where reliable and robust I²C and SMBus communication is critical.
- Systems requiring level translation between 5 V and 3.3 V with improved noise margins).
Q & A
- What is the primary function of the PCA9513AD,118?
The PCA9513AD,118 is a hot swappable I²C-bus and SMBus buffer designed to enhance the reliability and performance of I²C and SMBus systems.
- What is the operating voltage range of the PCA9513AD,118?
The operating power supply voltage range is from 2.7 V to 5.5 V.
- What is the maximum clock frequency supported by the PCA9513AD,118?
The device supports clock frequencies from 0 Hz to 400 kHz.
- Does the PCA9513AD,118 have built-in ESD protection?
- What is the purpose of the 92 µA current source on the SCLIN and SDAIN pins?
The 92 µA current source ensures a consistent RC time constant in multidrop bus applications.
- Can the PCA9513AD,118 be used in hot-swapping applications?
- What are the typical applications of the PCA9513AD,118?
- Does the PCA9513AD,118 support clock stretching and multiple master arbitration?
- What is the operating temperature range of the PCA9513AD,118?
- What package types are available for the PCA9513AD,118?
