IIS328DQ STMicroelectronics

IIS328DQ High-performance ultra-low-power 3-axis accelerometer with digital output for industrial applications Datasheet - production data Platform/antenna stabilization Tilt/inclination measurements Motion-activated functions Intelligent power saving 3 QFN 24 (4 x 4 x 1.8 mm ) Description The IIS328DQ is an ultra-low-power high- performance 3-axis linear accelerometer with a Features 2 digital serial interface, SPI or I C compatible. Wide supply voltage range: 2.16 V to 3.6 V Recommended for industrial applications requiring an extended temperature range and Low voltage compatible IOs: 1.8 V long lifespan, the device features ultra-low-power Ultra-low power consumption: down to 10 A operational modes that allow advanced power 2g/4g/8g dynamically selectable full-scale saving and smart sleep-to-wakeup functions. The 2 IIS328DQ has dynamic user-selectable full-scales SPI / I C digital output interface of 2g/4g/8g and is capable of measuring 16-bit data output accelerations with output data rates from 0.5 Hz 2 independent programmable interrupt to 1 kHz. The self-test capability allows the user to generators check the functioning of the sensor in the final application. The device may be configured to System sleep/wakeup function generate an interrupt signal through inertial Extended temperature range: -40 C to 105 C wakeup events, or by the position of the device Embedded self-test itself. Interrupt generators are programmable by the end user on-the-fly. Available in a small, quad, High shock survivability: up to 10000 g flat pack no-lead package (QFPN) with a 4x4 mm ECOPACK , RoHS and Green compliant footprint, the IIS328DQ corresponds to the trend towards application miniaturization, and is Applications guaranteed to operate over a temperature range from -40 C to +105 C. Anti-tampering devices Impact recognition and logging Vibration monitoring and compensation Robotics Table 1. Device summary Order codes Temperature range C Package Packaging IIS328DQ -40 to +105 QFPN 4x4x1.8 24L Tray IIS328DQTR -40 to +105 QFPN 4x4x1.8 24L Tape and reel April 2015 DocID027250 Rev 3 1/40 This is information on a product in full production. www.st.comContents IIS328DQ Contents 1 Block diagram and pin description . 7 1.1 Block diagram . 7 1.2 Pin description 7 2 Mechanical and electrical specifications 9 2.1 Mechanical characteristics . 9 2.2 Electrical characteristics 10 2.3 Communication interface characteristics . 11 2.3.1 SPI - serial peripheral interface . 11 2.3.2 I C - inter IC control interface . 12 2.4 Absolute maximum ratings 13 2.5 Terminology . 13 2.5.1 Sensitivity 13 2.5.2 Zero-g level 14 2.5.3 Self-test . 14 2.5.4 Sleep-to-wakeup 14 3 Functionality 15 3.1 Sensing element 15 3.2 IC interface 15 3.3 Factory calibration 15 4 Application hints . 16 5 Digital interfaces . 17 5.1 IC serial interface 17 5.1.1 IC operation . 18 5.2 SPI bus interface . 19 5.2.1 SPI read . 20 5.2.2 SPI write 21 5.2.3 SPI read in 3-wire mode 22 6 Register mapping 23 2/40 DocID027250 Rev 3