Datasheet Details
| Part number | NCA9547A |
|---|---|
| Manufacturer | Nexperia |
| File Size | 689.44 KB |
| Description | 8-channel I2C-bus multiplexer |
| Datasheet |
 NCA9547A Datasheet
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General Description
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.
Key Features
- 1-of-8 bidirectional translating multiplexers.
- I²C-bus interface logic; compatible with SMBus standards.
- Active LOW reset input.
- Three address pins allowing up to eight devices on the I²C-bus.
- Channel selection via I²C-bus, one channel at a time.
- Power-up with all channels deselected, except channel 0 which is connected.
- Low Ron multiplexers.
- Allows voltage level translation between 1.8 V, 2.5 V, 3.3 V and 5 V buses.