7.3.4 Serial Bus Address

To communicate with the TMP275, the master must first address slave devices through a slave address byte. The slave address byte consists of 7 address bits, and a direction bit indicating the intent of executing a read or write operation.

The TMP275 features three address pins, allowing up to eight devices to be connected per bus. Pin logic levels are described in Table 2. The address pins of the TMP275 are read after reset, at start of communication, or in response to a Two-Wire address acquire request. Following reading the state of the pins the address is latched to minimize power dissipation associated with detection.