TMP139 Digital Temperature Sensor Texas Instruments TMP139 Digital Temperature Sensor is a high-accuracy temperature sensor with an I2C / I3C compliant digital interface supporting In-Band Interrupts (IBI). By supporting the interface requirements of JEDEC JESD302-1 for Grade-B devices, the TMP139 exceeds the temperature accuracy requirements of the specification, enabling higher performance DDR5 memory modules. Available in a compact 6-ball DSBGA package, TMP139 is designed for high-speed, high-accuracy, and low-power thermal monitoring applications.