Nexperia I²C Switches and Multiplexers
Efficiently manage multiple I²C devices with scalable performance
Our 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.
The NCA9547A is an octal bidirectional translating multiplexer controlled by the I²C-bus. The SCL/SDA upstream pair fans out to eight downstream pairs, or channels. Only one SCn/SDn channel can be selected at a time, determined by the contents of the programmable control register. The device powers up with Channel 0 connected, allowing immediate communication between the controller and downstream devices (targets) on that channel.
The NCA9548A is an octal bidirectional translating switch controlled via the I²C-bus. The SCL/SDA upstream pair fans out to eight downstream pairs, or channels. Any individual SCn/SDn channel or combination of channels can be selected, determined by the contents of the programmable control register.
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
- Enterprise solutions - server applications
- Telecom - base stations
- Automotive systems
- Medical devices
- Industrial automation
- Robotics
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