Datasheet Details
| Part number | PCA9542 |
|---|---|
| Manufacturer | NXP Semiconductors |
| File Size | 74.20 KB |
| Description | 2-channel I2C multiplexer and interrupt controller |
| Datasheet |
 PCA9542 Datasheet
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General Description
The PCA9542 is a 1-of-2 bi-directional translating multiplexer, controlled via the I2C bus.
The SCL/SDA upstream pair fans out to two SCx/SDx downstream pairs, or channels.
Only one SCx/SDx channel is selected at a time, determined by the contents of the programmable control register.
Key Features
- 1-of-2 bi-directional translating multiplexer.
- Channel selection via I2C bus.
- Operating supply voltage 2.5 to 3.6 V.
- Operating temperature range 0°C to 70°C.
- Power-up with all multiplexer channels deselected.
- 3 address pins, allowing up to 8 devices on the I2C bus.
- Low on resistance.