Datasheet Details
| Part number | PCA9545 |
|---|---|
| Manufacturer | NXP Semiconductors |
| File Size | 118.83 KB |
| Description | 4-channel I2C switch with interrupt logic and reset |
| Datasheet | PCA9545_PhilipsSemiconductors.pdf |
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Overview: INTEGRATED CIRCUITS PCA9545 4-channel I2C switch with interrupt logic and reset Product data Supersedes data of 2001 Nov 08 2002 Mar 28 Philips Semiconductors Philips Semiconductors Product data 4-channel I2C switch with interrupt logic and reset PCA9545 passed by the PCA9545. This allows the use of different bus voltages on each pair, so that 1.8 V or 2.5 V or 3.3 V parts can municate with 5 V parts without any additional protection. External pull-up resistors pull the bus up to the desired voltage level for each channel. All I/O pins are 5 V tolerant.
| Part number | PCA9545 |
|---|---|
| Manufacturer | NXP Semiconductors |
| File Size | 118.83 KB |
| Description | 4-channel I2C switch with interrupt logic and reset |
| Datasheet | PCA9545_PhilipsSemiconductors.pdf |
|
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The PCA9545 is a quad bi-directional translating switch controlled via the I2C bus.
The SCL/SDA upstream pair fans out to four downstream pairs, or channels.
Any individual SCx/SDx channel or bination of channels can be selected, determined by the contents of the programmable control register.
| Brand Logo | Part Number | Description | Manufacturer |
|---|---|---|---|
 |
PCA9545A | Low Voltage 4-channel I2C and SMbus Switch | Texas Instruments |
| Part Number | Description |
|---|---|
| PCA9545A | 4-channel I2C switch |
| PCA9540 | 2-channel I2C multiplexer |
| 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 |