Nexperia I²C switches and multiplexers NCA9548, NCA9547
NCA9548 and NCA9547 - Efficiently manage multiple I²C devices with scalable performance
Nexperia I²C switches and multiplexers portfolio enables seamless communication between a single I²C controller and multiple target devices, even with shared addresses, by selectively routing signals. These devices simplify complex system architecture, resolve address conflicts, and support scalability. Ideal for designs requiring signal integrity, fault isolation, or flexible expansion, they provide reliable, efficient, and cost-effective solutions for managing I²C communication across diverse platforms.
Key features
- Facilitates voltage-level translation between I²C devices, streamlining integration
- Resolves I²C address conflicts via individual device selection
- Isolates faulty devices (incl. bus hangup devices) to prevent system failures and maintain integrity
- Extends I²C addressability for managing multiple peripherals
- Available in TSSOP24 and HWQFN24 for space constrained applications
Applications
- High performance computing / Server
- Telecom - base stations: 48/12 V DC/DC conversion
- Automotive systems
- Medical devices
- Industrial automation
- Robotics, cobots
Product portfolio
| Part number | Description | VCC(A) (V) | Logic switching levels |
Power dissipation considerations |
Temp (°C) | Nr of pins | Package name | Datasheet |
|---|---|---|---|---|---|---|---|---|
| NCA9547ABY | 8-channel I2C-bus multiplexer with reset | 1.65 - 5.5 | CMOS | low | -40~125 | 24 | HWQFN24 | Download datasheet |
| NCA9547ABY-Q100 | Download datasheet | |||||||
| NCA9548ABY | 8-channel I2C-bus switch with reset | Download datasheet | ||||||
| NCA9548ABY-Q100 | Download datasheet |
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