LIS2DS12 STMicroelectronics

LIS2DS12 MEMS digital output motion sensor: ultra-low-power high-performance 3-axispic accelerometer Datasheet - production data Description The LIS2DS12 is an ultra-low-power high- performance three-axis linear accelerometer belonging to the pico family which leverages on the robust and mature manufacturing processes /* PP already used for the production of micromachined accelerometers. Features The LIS2DS12 has user-selectable full scales of 2g/4g/8g/16g and is capable of measuring Supply voltage, 1.62 V to 1.98 V accelerations with output data rates from 1 Hz to Independent IOs supply (1.8 V) and supply 6400 Hz. voltage compatible The LIS2DS12 has an integrated 256-level first- Ultra-low power consumption in, first-out (FIFO) buffer allowing the user to store 2g/4g/8g/16g full scale data in order to limit intervention by the host 2 processor. High-speed I C/SPI digital output interface Low noise The embedded self-test capability allows the user to check the functioning of the sensor in the final 16-bit data output application. Embedded temperature sensor The LIS2DS12 has a dedicated internal engine Self-test architecture in order to process internally motion 256-level FIFO and acceleration detection including free-fall, wakeup, single and double-tap detection, activity- 10000 g high shock survivability inactivity, portrait and landscape detection, step ECOPACK , RoHS and Green compliant counter and step detection along with significant motion detection. Applications The LIS2DS12 is available in a small thin plastic Motion-activated functions and user interfaces land grid array package (LGA) and it is guaranteed to operate over an extended Gesture recognition and gaming temperature range from -40 C to +85 C. Pedometer, step detector and step counters Display orientation Table 1. Device summary Sensor hub function Temperature Order codes Package Packaging Tilt function range C Tap/double-tap recognition LIS2DS12 -40 to +85 LGA-12 Tray 6D/4D orientation Tape and LIS2DS12TR -40 to +85 LGA-12 Free-fall detection reel Smartpower saving for handheld devices Impact recognition and logging December 2015 DocID027753 Rev 4 1/68 This is information on a product in full production. www.st.comContents LIS2DS12 Contents 1 Block diagram and pin description 10 1.1 Block diagram 10 1.2 Pin description . 10 2 Mechanical and electrical specifications . 12 2.1 Mechanical characteristics 12 2.2 Electrical characteristics 13 2.3 Temperature sensor characteristics . 13 2.4 Communication interface characteristics . 14 2.4.1 SPI - serial peripheral interface . 14 2 2.4.2 I C - inter-IC control interface 15 2.5 Absolute maximum ratings 17 2.6 Terminology . 18 2.6.1 Zero-g offset 18 2.6.2 Sensitivity 18 2.6.3 Self-test . 18 2.7 Sensing element 18 2.8 IC interface 19 3 Factory calibration . 19 4 Application hints . 20 5 Digital main blocks . 22 5.1 Power modes 22 5.2 Activity/Inactivity function . 24 5.3 Data stabilization time vs. ODR setting 25 5.4 FIFO . 25 5.4.1 Bypass mode . 26 5.4.2 FIFO mode . 26 5.4.3 Continuous mode 26 5.4.4 Continuous-to-FIFO mode . 27 5.4.5 Bypass-to-Continuous mode . 28 2/68 DocID027753 Rev 4