LSM303CTR

LSM303C Ultra-compact high-performance eCompass module: 3D accelerometer and 3D magnetometer Datasheet - production data Impact recognition and logging Vibration monitoring and compensation Description The LSM303C is a system-in-package featuring a LGA-12 (2.0x2.0x1.0 mm) 3D digital linear acceleration sensor and a 3D digital magnetic sensor. Features The LSM303C has linear acceleration full scales of 2 g / 4 g / 8 g and a magnetic field full scale 3 magnetic field channels and 3 acceleration of 16 gauss. channels 2 The LSM303C includes an I C serial bus 16 gauss magnetic full scale interface that supports standard and fast mode 2/4/8 g selectable acceleration full scale (100 kHz and 400 kHz) and an SPI serial 16-bit data output standard interface. 2 SPI / I C serial interfaces The system can be configured to generate an Analog supply voltage 1.9 V to 3.6 V interrupt signal for free-fall, motion detection and magnetic field detection. Power-down mode / low-power mode The magnetic and accelerometer blocks can be Programmable interrupt generators for free- enabled or put into power-down mode separately. fall, motion detection and magnetic field detection The LSM303C is available in a plastic land grid Embedded temperature sensor array package (LGA) and is guaranteed to operate over an extended temperature range Embedded FIFO from -40 C to +85 C. ECOPACK , RoHS and Green compliant Table 1. Device summary Applications Temperature Part number Package Packaging range C Tilt-compensated compasses LSM303C -40 to +85 LGA-12 Tray Map rotation Position detection Tape and LSM303CTR -40 to +85 LGA-12 reel Motion-activated functions Free-fall detection Click/double-click recognition Pedometer Intelligent power saving for handheld devices Display orientation Gaming and virtual reality input devices June 2014 DocID024975 Rev 2 1/53 This is information on a product in full production. www.st.comContents LSM303C Contents 1 Block diagram and pin description . 8 1.1 Block diagram . 8 1.2 Pin description 9 2 Module specifications . 11 2.1 Sensor characteristics . 11 2.2 Temperature sensor characteristics . 12 2.3 Electrical characteristics 12 2.3.1 Recommended power-up sequence . 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 16 3 Terminology . 17 3.1 Sensitivity . 17 3.1.1 Linear acceleration sensor sensitivity 17 3.1.2 Magnetic sensor sensitivity 17 3.2 Zero-g level . 17 3.3 Zero-gauss level 17 4 Functionality 18 4.1 Self-test 18 4.2 FIFO . 18 4.2.1 Bypass mode . 18 4.2.2 FIFO mode . 19 4.2.3 Stream mode . 19 4.2.4 Stream-to-FIFO mode 20 4.2.5 Bypass-to-Stream mode 20 4.2.6 Bypass-to-FIFO mode 20 4.2.7 Retrieving data from FIFO . 20 4.2.8 FIFO multiple read (burst) . 20 4.3 Activity/Inactivity function . 21 2/53 DocID024975 Rev 2