PCA9545 Overview
Key Specifications
Package: TSSOP
Mount Type: Surface Mount
Pins: 20
Operating Voltage: 2.5 V
Description
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.
Key Features
- 1-of-4 bi-directional translating switches
- I2C interface logic; compatible with SMBus standards
- 4 active low interrupt inputs
- Active low interrupt output
- Active low reset input
- 2 address pins allowing up to 4 devices on the I2C bus
- Channel selection via I2C bus, in any combination
- Power up with all switch channels deselected
- Low RDSON switches
- Allows voltage level translation between 1.8 V, 2.5 V, 3.3 V and
