PCA9540 Description
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.
PCA9540 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
- Low on resistance