Datasheet Details
| Part number | PCA9542A |
|---|---|
| Manufacturer | NXP Semiconductors |
| File Size | 162.75 KB |
| Description | 2-channel I2C-bus multiplexer and interrupt logic |
| Datasheet |
 PCA9542A Datasheet
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General Description
The PCA9542A is a 1-of-2 bidirectional 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
- I I I I I I I I I I I I I I I I 1-of-2 bidirectional translating multiplexer I2C-bus interface logic; compatible with SMBus 2 active LOW interrupt inputs (INT0, INT1) Active LOW interrupt output (INT) 3 address pins allowing up to 8 devices on the I2C-bus Channel selection via I2C-bus Powers up with all multiplexer channels deselected Low Ron switches Allows voltage level translation between 1.8 V, 2.5 V, 3.3 V and 5 V buses No glitch on power-up Supports hot insertion Low standby current Operat.