JAJSMG0C june 2021 – december 2022 HDC3020 , HDC3021 , HDC3022
PRODUCTION DATA
An I2C controller will communicate to a desired target device through a target address byte. The target address byte consists of seven address bits and a direction bit that indicates the intent to execute a read or write operation. The HDC302x features two address pins, which allow for supporting four addressable HDC302x devices on a single I2C bus. Table 8-2 describes the pin logic levels used to communicate up to four devices. HDC302x pins ADDR and ADDR1 must be set before any activity on the interface.
ADDR | ADDR1 | ADDRESS (Hex Representation) |
---|---|---|
Logic Low | Logic Low | 0x44 |
Logic Low | Logic High | 0x46 |
Logic High | Logic Low | 0x45 |
Logic High | Logic High | 0x47 |