PCA9846 Overview
The PCA9846 is an ultra-low voltage, quad bidirectional translating switch controlled via the I2C-bus. The SCL/SDA upstream pair fans out to four downstream pairs, or channels. Any or all SCx/SDx channels can be selected, determined by the programmable control register.
PCA9846 Key Features
- Ultra-low voltage operation, down to 0.8 V to interface with next-generation CPUs
- 1-of-4 bidirectional translating switch
- Fm+ I2C-bus interface logic; patible with SMBus standards
- Active LOW reset input
- 2 address pins allowing up to 16 devices on the I2C-bus
- Channel selection via I2C-bus
- Power-up with all switch channels deselected
- Low Ron switches
- Allows voltage level translation between 0.8 V, 1.8 V, 2.5 V and 3.3 V buses
- Reset via I2C-bus software mand