I3G4250D

I3G4250D MEMS motion sensor: 3-axis digital output gyroscope Datasheet - production data Applications Industrial applications Navigation systems and telematics Motion control with MMI (man-machine interface) /* PP Appliances and robotics Description Features The I3G4250D is a low-power 3-axis angular rate Wide supply voltage: 2.4 V to 3.6 V sensor able to provide unprecedented stability at zero-rate level and sensitivity over temperature Selectable full scale (245/500/2000 dps) and time. It includes a sensing element and an IC 2 I C/SPI digital output interface interface capable of providing the measured 16-bit rate value data output angular rate to the application through a standard 2 SPI digital interface. An I C compatible interface 8-bit temperature data output is also available. Two digital output lines (interrupt and data The sensing element is manufactured using a ready) dedicated micromachining process developed by Integrated low- and high-pass filters with user- STMicroelectronics to produce inertial sensors selectable bandwidth and actuators on silicon wafers. Ultra-stable over temperature and time The IC interface is manufactured using a CMOS Low-voltage-compatible IOs (1.8 V) process that allows a high level of integration to Embedded power-down and sleep mode design a dedicated circuit which is trimmed to better match the characteristics of the sensing Embedded temperature sensor element. Embedded FIFO The I3G4250D has a selectable full scale High shock survivability (245/500/2000 dps) and is capable of Extended operating temperature range measuring rates with a user-selectable (-40 C to +85 C) bandwidth. ECOPACK , RoHS and Green compliant The I3G4250D is available in a plastic land grid array (LGA) package and can operate within a temperature range of -40 C to +85 C. Table 1. Device summary Order code Temperature range (C) Package Packing 3 I3G4250D -40 to +85 LGA-16 (4x4x1.1 mm ) Tray 3 I3G4250DTR -40 to +85 LGA-16 (4x4x1.1 mm ) Tape and reel April 2015 DocID027628 Rev 2 1/43 This is information on a product in full production. www.st.comContents I3G4250D Contents 1 Block diagram and pin description . 7 1.1 Pin description 7 2 Mechanical and electrical characteristics . 10 2.1 Mechanical characteristics 10 2.2 Electrical characteristics 11 2.3 Temperature sensor characteristics . 11 2.4 Communication interface characteristics . 12 2.4.1 SPI - serial peripheral interface . 12 2 2.4.2 I C - inter IC control interface 13 2.5 Absolute maximum ratings 14 2.6 Terminology . 15 2.6.1 Sensitivity 15 2.6.2 Zero-rate level 15 2.6.3 Stability over temperature and time 15 2.7 Soldering information 15 3 Main digital blocks . 16 3.1 Block diagram 16 3.2 FIFO . 16 3.2.1 Bypass mode . 17 3.2.2 FIFO mode . 17 3.2.3 Stream mode . 18 3.2.4 Retrieving data from FIFO . 18 4 Application hints . 20 5 Digital interfaces . 21 2 5.1 I C serial interface 21 2 5.1.1 I C operation . 22 5.2 SPI bus interface . 24 5.2.1 SPI read 25 5.2.2 SPI write .26 2/43 DocID027628 Rev 2