SNIS217C december 2020 – may 2023 TMP139
PRODUCTION DATA
Refer to the PDF data sheet for device specific package drawings
For I2C write operation, the host controller sends the device address with R/W bit as 0, after a Start or Repeated Start as shown in Figure 7-6. This is followed by the 8-bit register address and then the data. The TMP139 writes the data to the register address specified. The internal write register address pointer is incremented after every data byte written. If the write results in an address rollover, then the device shall reset the internal write register address pointer and continue the write operation if possible. The TMP139 does not NACK the data byte for reserved or read-only register, but shall discard the data byte and not update the register.