BMA222 Digital, triaxial acceleration sensor Bosch Sensortec General description Sensor operation The BMA222 is an advanced, ultra-small, triaxial, The BMA222 supports two modes of operation: low-g acceleration sensor with digital interfaces, 1) Streaming data mode: Acceleration data is directly aiming for low-power consumer electronics applica- read-out via the sensor’s digital interface and comput- tions. ed by a system µController, application processor or a The BMA222 allows measurement of accelerations base-band processor. in 3 perpendicular axes and thus senses tilt, motion, 2) Interrupt engine mode: Acceleration data is com- shock and vibration in cellular phones, handhelds, puted already within the BMA222 by the integrated, computer peripherals, man-machine interfaces, programmable interrupt engine. Depending on the virtual reality features and game controllers. programmable settings the integrated interrupt engine of the BMA222 signals the occurrence of certain events via the sensors` two interrupt pins. The corres- BMA222 target applications ponding registers of the BMA222 can easily be set and f Display profile switching (portrait/landscape, read-out via the digital sensor interface. face-up/face-down switching) f Flat detection BMA222 Technical data f Tap sensing function f Menu scrolling Digital resolution 8 bit f Gaming Resolution 15.6 mg f Advanced power management for mobile devices (in ±2g range) f Shock and free-fall detection Measurement ranges ±2 g, ±4 g, ±8 g, ±16 g f Step-counting (programmable) Sensitivity ±2 g: 64 LSB/g (calibrated) ±4 g: 32 LSB/g Sensor features ±8 g: 16 LSB/g With its size of only 2 mm x 2 mm the BMA222 ±16 g: 8 LSB/g represents a new generation of digital accelerati- Zero-g offset ±100 mg on sensors. The BMA222 integrates a multitude of (over life-time) features that facilitate its use especially in the area Bandwidths 1000 Hz ... 8 Hz of motion detection applications, such as device ori- (programmable) entation detection, gaming, HMI and menu browser Digital inputs/outputs SPI & I2C, control. Featuring a full operation current consump- 2x interrupt pins tion of only 139 µA the BMA222 is ideally suited for Supply voltage (V ) 1.62 … 3.6 V DD mobile consumer electronic devices. In low-power I/0 supply voltage (V ) 1.2 … 3.6 V DDIO mode operation the current consumption can be Temperature range -40 … +85°C even further reduced by almost one order of mag- Current consumption nitude. f full operation 139 µA (@ 2 kHz data rate) The BMA222 is highly configurable in order to give f low-power mode 7 µA (@ 40 Hz data rate) the designer full flexibility when integrating the sen- 1 µA (@ 1 Hz data rate) sor into his system. LGA package 2 x 2 x 0.95 mm3 Shock resistance 10.000 g x 200 µs

2 | Bosch Sensortec | BMA222 supported by the BMA222 interrupt engine: Pin configuration (top view) f Data-ready (e. g. for processor synchronization) ppiinn ##1122 f Any-motion (slope) detection (e. g. for wake-up) f Tap sensing (e. g. for tap-sensitive UI control) ppiinn ##11 SSDDOO SSCCKK PPSS CCSSBB f Orientation change recognition (e. g. for portrait/ landscape & face-up/face-down switching) f Flat detection (e. g. for position sensitive SSDDxx GGNNDD BBMMAA222222 switching) ((ttoopp vviieeww)) f Low-g / high-g detection (e. g. for shock and VVDDDDIIOO GGNNDDIIOO free-fall detection) ppiinn ##77 NNCC IINNTT11 IINNTT22 VV DDDDAA Interrupt parameters (e. g. switching angles and hysteresis settings for orientation change) can be configured by the designer and thus perfectly support the integration of the BMA222 into the user’s system Pin Name Function environment. No. 1 SDO SPI serial data output 2 SDA, I2C / SPI serial data input/ System compatibility SDI, output The BMA222 has been designed for best possible fit SDO into modern mobile consumer electronics devices. Besides the ultra-small footprint and lowest power 3 V I/O supply voltage DDIO consumption, the BMA222 has very wide ranges for 4 N.C. Not connected V and V supply voltages. An integrated self-test 5 INT1 Interrupt output #1 DD DDIO feature facilitates overall system reliability. 6 INT2 Interrupt output #2 7 V Supply voltage DD 8 GND Ground I/O IO 9 GND Ground 10 CSB SPI chip select 11 PS Protocol select pin (0=SPI, 1=I2C) 12 SCK SCL (I2C serial clock) SCK (SPI serial clock) The BMA222 features I2C and SPI (3-wire/4-wire) dig- tal serial interfaces. Sensor parameters, like g-ranges or low-pass filter settings, and also all interrupt engi- ne settings can be easily programmed via the digital interfaces. Integrated interrupt engine One of the key elements of the BMA222 is the enhan- ced intelligent interrupt engine that gives the hard- and software designer full control. Various motion detection scenarios can be identified by the BMA222 Headquarters and signaled to the system via two interrupt pins. The Bosch Sensortec GmbH interrupt sources can be freely mapped to either of Gerhard-Kindler-Strasse 8 72770 Reutlingen · Germany the two interrupt pins. Telephone +49 7121 3535 900 Following motion detection use case scenarios are Fax +49 7121 3535 909 contact@bosch-sensortec.com www.bosch-sensortec.com Data & Specification subject to change without notice Doc.-Number: BST-BMA222-FL000-02 / Version_1.1_012011 © Bosch Sensortec GmbH reserves all rights in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third par- ties. BOSCH and the symbols are registered trademarks of Robert Bosch GmbH, Germany.

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