IIS2DH - st.com

1 This is information on a product in full production. April 2015 DocID027668 Rev 21/49 IIS2 DHUltra-low-power high-performance 3-axis accelerometer with digital output for industrial applicationsDatasheet - production dataFeatures Wide supply voltage, V to V Independent IOs supply ( V) and supply voltage compatible Ultra-low power consumption down to 2 A 2g/ 4g/ 8g/ 16g selectable full scales I2C/SPI digital output interface 3 operating modes: low-power, normal, high-resolution mode 2 independent programmable interrupt generators for free-fall and motion detection 6D/4D orientation detection Motion detection & free-fall detection Sleep-to-wake and return-to-sleep functions Embedded FIFO Embedded self-test Embedded temperature sensor ECOPACK.

2 RoHS and Green compliantApplications Robotics Anti-tampering devices Vibration monitoring Tilt/inclination measurements Impact recognition and logging Industrial tools and factory equipment Motion-activated functionsDescriptionThe IIS2DH is an ultra-low-power high-performance three-axis linear accelerometer with digital I2C/SPI serial interface standard output. The IIS2DH has user-selectable full scales of 2g/ 4g/ 8g/ 16g and is capable of measuring accelerations with output data rates from 1 Hz to device may be configured to generate interrupt signals by two independent inertial wake-up/free-fall events as well as by the position of the device self-test capability allows the user to check the functionality of the sensor in the final IIS2DH is available in a small thin plastic land grid array package (LGA)

3 And is guaranteed to operate over an extended temperature range from -40 C to +85 ( mm) Table 1. Device summaryOrder codeTemperature range [ C]PackagePackagingIIS2 DHTR-40 to +85 LGA-12 Tape and Rev 2 Contents1 Block diagram and pin description .. diagram .. description .. 82 Mechanical and electrical specifications .. characteristics .. sensor characteristics .. characteristics .. interface characteristics .. - serial peripheral interface .. - inter-IC control interface.

4 Maximum ratings .. and functionality .. 16 Terminology .. level .. 16 Functionality .. , normal mode, low-power mode .. / 4D orientation detection .. Sleep-to-wake and Return-to-sleep .. element .. interface .. calibration .. sensor .. 193 Application hints .. information .. 204 Digital main blocks .. mode .. 21 DocID027668 Rev 23 mode .. mode .. mode .. data from FIFO .. 225 Digital interfaces .. serial interface .. operation.

5 Bus interface .. read .. write .. read in 3-wire mode .. 296 Register mapping .. 307 Register description .. (07h) .. (0Ch), OUT_TEMP_H (0Dh) .. (0Eh) .. (0Fh) .. (1Fh) .. (20h) .. (21h) .. (22h) .. (23h) .. (24h) .. (25h) .. (26h) .. (27h) .. (28h), OUT_X_H (29h) .. (2Ah), OUT_Y_H (2Bh) .. (2Ch), OUT_Z_H (2Dh) .. (2Eh) .. (2Fh) .. (30h) .. 39 ContentsIIS2DH4/49 DocID027668 Rev (31h) .. (32h) .. (33h).

6 (34h) .. (35h) .. (36h) .. (37h) .. (38h) .. (39h) .. (3Ah) .. (3Bh) .. (3Ch) .. (3Dh) .. (3Eh) .. (3Fh) .. 468 Package information .. package information .. 479 Revision history .. 48 DocID027668 Rev 25/49 IIS2 DHList of tables49 List of tablesTable summary .. 1 Table description .. 9 Table characteristics .. 10 Table sensor characteristics .. 11 Table characteristics .. 12 Table slave timing values.. 13 Table slave timing values.

7 14 Table maximum ratings .. 15 Table mode selection .. 16 Table time for operating mode transition.. 17 Table consumption of operating modes.. 17 Table interface pin description .. 23 Table terminology ..23 Table +read/write patterns.. 24 Table when master is writing one byte to slave .. 24 Table when master is writing multiple bytes to slave .. 25 Table when master is receiving (reading) one byte of data from slave .. 25 Table when master is receiving (reading) multiple bytes of data from slave.

8 25 Table address map.. 30 Table register .. 32 Table description .. 32 Table register .. 32 Table register .. 32 Table register ..32 Table description .. 32 Table register .. 33 Table description .. 33 Table rate configuration .. 33 Table register .. 34 Table description .. 34 Table filter mode configuration ..34 Table mode - high-pass filter cutoff frequency .. 34 Table register .. 35 Table description .. 35 Table register .. 35 Table description .. 35 Table mode configuration.

9 36 Table register .. 36 Table description .. 36 Table register .. 36 Table description .. 36 Table register .. 37 Table description .. 37 Table register .. 37 Table description ..37 Table register ..38 Table description .. 38 Table mode configuration .. 38 List of tablesIIS2DH6/49 DocID027668 Rev 2 Table register ..38 Table description ..39 Table register .. 39 Table description .. 39 Table mode .. 39 Table register .. 40 Table description .. 40 Table register.

10 40 Table description.. 41 Table register ..41 Table description ..41 Table register .. 41 Table description .. 41 Table mode .. 42 Table register .. 42 Table description .. 42 Table register .. 43 Table description.. 43 Table register ..43 Table description ..43 Table register.. 43 Table description .. 44 Table register.. 44 Table description .. 44 Table register .. 45 Table description .. 45 Table register .. 45 Table description .. 45 Table register.