Overview
The PCA9541ABS/03,118 is a 2-to-1 I2C-bus master selector designed by NXP USA Inc. This component is tailored for high-reliability dual master I2C-bus applications, ensuring seamless system operation. It features interrupt logic and reset capabilities, making it suitable for complex I2C-bus systems where multiple masters need to control the bus.
Key Specifications
| Parameter | Description |
|---|---|
| Package | HVQFN16 |
| Pin Count | 16 |
| Supply Voltage | 2.3 V to 5.5 V |
| Interface | I2C, SMBus |
| Environmental Compliance | PbFree, EU RoHS, Halogen Free, REACH SVHC compliant |
| Operating Temperature | -40°C to 85°C |
Key Features
- 2-to-1 I2C-bus master selector for dual master I2C-bus applications
- Interrupt logic with interrupt status register
- Power-on reset and bus initialization/recovery function
- No arbitration; any master can take control of the bus
- Control and interrupt enable registers for flexible control
- Bus sensor function to detect non-idle conditions in the downstream slave channel
- Low power consumption and high reliability
Applications
- Dual master I2C-bus systems in industrial automation
- Automotive infotainment and cluster systems
- Communications equipment and wired networking
- Building automation and control systems
- Any system requiring multiple I2C-bus masters to share the bus
Q & A
- What is the primary function of the PCA9541ABS/03,118?
The PCA9541ABS/03,118 is a 2-to-1 I2C-bus master selector designed to manage dual master I2C-bus applications.
- What is the package type of the PCA9541ABS/03,118?
The component is packaged in a HVQFN16 package.
- What is the supply voltage range for the PCA9541ABS/03,118?
The supply voltage range is from 2.3 V to 5.5 V.
- Does the PCA9541ABS/03,118 support interrupt logic?
Yes, it includes interrupt logic with an interrupt status register.
- How does the PCA9541ABS/03,118 handle bus control between masters?
Any master can take control of the bus without arbitration, and the component includes control and interrupt enable registers for managing this process.
- What environmental standards does the PCA9541ABS/03,118 comply with?
The component is PbFree, EU RoHS, Halogen Free, and REACH SVHC compliant.
- What is the purpose of the bus sensor function in the PCA9541ABS/03,118?
The bus sensor function detects non-idle conditions in the downstream slave channel and sends an interrupt if necessary.
- Can the PCA9541ABS/03,118 be used in automotive applications?
Yes, it is suitable for automotive infotainment and cluster systems.
- How does the PCA9541ABS/03,118 handle power-on reset?
The component includes a power-on reset feature to ensure proper initialization.
- What is the operating temperature range of the PCA9541ABS/03,118?
The operating temperature range is from -40°C to 85°C.
