Datasheet STTS22H (STMicroelectronics) - 3

STTS22H Overview 1 Overview
The STTS22H is a digital temperature sensor which communicates over a 2-wire I²C/SMBus 3.0 serial interface. Thanks to its factory calibration, the STTS22H offers high-end accuracy performance over the entire operating temperature range reaching as low as ±0.5 °C without requiring any further calibration at the application level. The sensor operating mode is user-configurable and allows selecting between different ODRs (down to 1 Hz) or the one-shot mode for battery saving. In one-shot mode, the sensor current consumption falls to 1.75 µA. The STTS22H comes in a 6-pin device that supports user-configurable slave addresses. By connecting the Addr pin to either GND or VDD, two different addresses can be specified, thus allowing to have up to two STTS22H sharing the same I²C/SMBus bus line. An interrupt pin is also available to signal the application whenever the user-selectable high and low threshold have been exceeded.
DS12606
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Rev 4 page 3/29
Document Outline 1 Overview 2 Pin description 3 Sensor parameters and electrical specifications 3.1 Sensor accuracy specifications 4 Absolute maximum ratings 5 Digital interfaces 5.1 SMBus interface 5.1.1 SMBus protocol 5.1.2 WRITE byte 5.1.3 READ byte 5.1.4 SEND byte 5.1.5 RECEIVE byte 5.1.6 SMBus timeout 5.1.7 Alert response address 5.2 I²C interface 5.2.1 I²C protocol 5.2.2 I²C read and write sequences 6 Register description 6.1 WHOAMI (01h) - RO 6.2 TEMP_H_LIMIT (02h) - RW 6.3 TEMP_L_LIMIT (03h) - RW 6.4 CTRL (04h) - RW 6.5 STATUS (05h) - RO 6.6 TEMP_L_OUT (06h) - RO 6.7 TEMP_H_OUT (07h) - RO 6.8 SOFTWARE_RESET (0Ch) - RW 7 Interrupt 8 ALERT / INT output 9 Operating modes 9.1 Enable sequence for one-shot mode 9.2 Enable sequence for freerun mode 9.3 Enable sequence for low-ODR mode 10 Package information 10.1 Soldering information 10.2 UDFN-6L package information 10.3 UDFN-6L packing information Revision history