| Part Number | PCA9544A |
|---|---|
| Manufacturer | Texas Instruments |
| Overview |
The PCA9544A is a 4-channel, bidirectional translating multiplexer controlled via the I2C bus. The SCL/SDA upstream pair fans out to four downstream pairs, or channels. One SCL/SDA pair can be selecte.
*1 1-of-4 Bidirectional translating switches * I2C Bus and SMBus compatible * Four active-low interrupt inputs * Active-low interrupt output * Three address pins, allowing up to eight devices on the I2C Bus * Channel selection via I2C Bus * Power up with all switch channels deselected * Low RON swit. |
PCA9544A Datasheet
The PCA9544A is a Low Voltage 4-Channel I2C and SMBus Multiplexer.
| Part Number | PCA9544A |
|---|---|
| Description | 4-channel I2C-bus multiplexer |
| Manufacturer | NXP Semiconductors |
| Overview |
The PCA9544A is a 1-of-4 bidirectional translating multiplexer, controlled via the I2C-bus. The SCL/SDA upstream pair fans out to four SCx/SDx downstream pairs, or channels. Only one SCx/SDx channel i.
and benefits
* 1-of-4 bidirectional translating multiplexer * I2C-bus interface logic; compatible with SMBus * 4 active LOW interrupt inputs * Active LOW interrupt output * 3 address pins allowing up to 8 devices on the I2C-bus * Channel selection via I2C-bus * Power-up with all multiplexer channels. |