EK3L02DQX STMicroelectronics

LIS3L02DQ MEMS INERTIAL SENSOR: 3-Axis - 2g DIGITAL OUTPUT LINEAR ACCELEROMETER 1 Features Figure 1. Package 2.7V TO 3.6V SINGLE SUPPLY OPERATION 1.8V COMPATIBLE IOs 12 BIT RESOLUTION 2 I C/SPI DIGITAL OUTPUT INTERFACES INTERRUPT ACTIVATED BY MOTION QFN-44 PROGRAMMABLE INTERRUPT THRESHOLD EMBEDDED SELF TEST Table 1. Order Codes HIGH SHOCK SURVIVABILITY Part Number Package Finishing ECO-PACK COMPLIANT LIS3L02DQ QFN44 Tray LIS3L02DQ-TR QFN44 Tape & Reel 2 Description The LIS3L02DQ is a three axes digital output lin- functioning of the system. ear accelerometer that includes a sensing element The device may be configured to generate an iner- and an IC interface able to take the information tial wake-up/interrupt signal when a programma- from the sensing element and to provide the mea- ble acceleration threshold is exceeded at least sured acceleration signals to the external world along one of the three axes. 2 through an I C/SPI serial interface. The LIS3L02DQ is available in plastic SMD pack- The sensing element, capable of detecting the ac- age and it is specified over a temperature range celeration, is manufactured using a dedicated pro- extending from -20C to +70C. cess developed by ST to produce inertial sensors The LIS3L02DQ belongs to a family of products and actuators in silicon. suitable for a variety of applications: The IC interface instead is manufactured using a Motion activated functions in mobile terminals CMOS process that allows high level of integration to design a dedicated circuit which is factory Antitheft systems and Inertial navigation trimmed to better match the sensing element char- Gaming and Virtual Reality input devices acteristics. Vibration Monitoring and Compensation A self-test capability allows the user to check the Figure 2. Block Diagram X+ Reconstruction Y+ CS Filter CHARGE Z+ AMPLIFIER SCL/SPC 2 I C SDA/SDO/SDI DE Regs Reconstruction MUX a MUX Array Filter SDO SPI Z- Y- Reconstruction X- Filter CONTROL LOGIC RDY/INT CLOCK SELF TEST REFERENCE TRIMMING & CIRCUITS INTERRUPT GEN. Rev. 4 May 2005 1/20 Obsolete Product(s) - Obsolete Product(s) Obsolete Product(s) - Obsolete Product(s) LIS3L02DQ Table 2. Pin Description N Pin Function 1 to 2 NC Internally not connected 3 GND 0V supply 4 Vdd Power supply 5 to 12 NC Internally not connected 13 Reserved Leave unconnected or connect to Vdd IO 14 Reserved Leave unconnected or connect to GND 15 RDY/INT Data ready/inertial wake-up interrupt 16 SDO SPI Serial Data Output 2 17 SDA/ I C Serial Data (SDA) SDI/ SPI Serial Data Input (SDI) SDO 3-wire Interface Serial Data Output (SDO) 2 18 SCL/SPC I C Serial Clock (SCL) SPI Serial Port Clock (SPC) 19 CS SPI enable 2 2 I C/SPI mode selection (1: I C mode 0: SPI enabled) 20 Vdd IO Power supply for I/O pads 21 Vdd Power supply 22 GND 0V supply 23 to 44 NC Internally not connected Figure 3. Pin Connection (Top view) 1 X Y NC NC NC NC GND NC Vdd NC NC NC NC NC LIS3L02DQ NC NC NC NC NC NC Z NC NC NC NC DIRECTION OF THE DETECTABLE ACCELERATIONS 2/20 Obsolete Product(s) - Obsolete Product(s) Obsolete Product(s) - Obsolete Product(s) NC NC NC Reserved NC Reserved NC RDY/INT NC SDO NC SDA/SDI/SDO NC SCL/SPC NC CS NC Vdd IO NC Vdd NC GND