JAJSOO4B September 2011 – June 2022 TMP100-Q1 , TMP101-Q1
PRODUCTION DATA
To program the TMP100-Q1 and TMP101-Q1 devices, the controller must first address target devices through a target address byte. The target address byte consists of seven address bits and a direction bit indicating the intent of executing a read or write operation.
The TMP100-Q1 device features two address pins to allow up to eight devices to be addressed on a single I2C interface. Table 7-2 describes the pin logic levels used to properly connect up to eight devices. Float indicates the pin is left unconnected. The state of pins ADD0 and ADD1 is sampled on the first I2C bus communication and must be set before any activity on the interface.
ADD1 | ADD0 | TARGET ADDRESS |
---|---|---|
0 | 0 | 1001000 |
0 | Float | 1001001 |
0 | 1 | 1001010 |
1 | 0 | 1001100 |
1 | Float | 1001101 |
1 | 1 | 1001110 |
Float | 0 | 1001011 |
Float | 1 | 1001111 |
The TMP101-Q1 device features one address pin and an ALERT pin, allowing up to three devices to be connected per bus. Pin logic levels are described in Table 7-3. The address pins of the TMP100-Q1 and TMP101-Q1 devices are read after reset or in response to an I2C address acquire request. Following reading, the state of the address pins is latched to minimize power dissipation associated with detection.
ADD0 | TARGET ADDRESS |
---|---|
0 | 1001000 |
Float | 1001001 |
1 | 1001010 |