Datasheet Details
| Part number | PCA9540 |
|---|---|
| Manufacturer | NXP Semiconductors |
| File Size | 110.04 KB |
| Description | 2-channel I2C multiplexer |
| Download | PCA9540 Download (PDF) |
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| Part number | PCA9540 |
|---|---|
| Manufacturer | NXP Semiconductors |
| File Size | 110.04 KB |
| Description | 2-channel I2C multiplexer |
| Download | PCA9540 Download (PDF) |
|
|
|
The PCA9540 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.
INTEGRATED CIRCUITS PCA9540 2-channel I2C multiplexer Product specification 1999 Dec 15 Philips Semiconductors Philips Semiconductors Product specification 2-channel I2C multiplexer.
| Part Number | Description |
|---|---|
| PCA9540B | 2-channel I2C-bus multiplexer |
| PCA9542 | 2-channel I2C multiplexer and interrupt controller |
| PCA9543 | 2-channel I2C switch |
| PCA9544 | 4-channel I2C multiplexer and interrupt controller |
| PCA9544A | 4-channel I2C-bus multiplexer |
| PCA9544ABS | 4-channel I2C-bus multiplexer |
| PCA9544AD | 4-channel I2C-bus multiplexer |
| PCA9544APW | 4-channel I2C-bus multiplexer |
| PCA9545 | 4-channel I2C switch with interrupt logic and reset |
| PCA9545A | 4-channel I2C switch |