LIS331DL_08 Datasheet, PDF (1/42 Pages) STMicroelectronics – MEMS motion sensor 3-axis - ±2g/±8g smart digital output -nano-accelerometer

LIS331DL
MEMS motion sensor
3-axis - ±2g/±8g smart digital output “nano” accelerometer
Features
■ 2.16 V to 3.6 V supply voltage
■ 1.8 V compatible IOs
■ <1 mW power consumption
■ ±2g / ±8g dynamically selectable full-scale
■ I²C/SPI digital output interface
■ Programmable interrupt generator
■ Embedded click and double click recognition
■ Embedded free-fall and motion detection
■ Embedded high pass filter
■ Embedded self test
■ 10000 g high shock survivability
■ ECOPACK^® RoHS and “Green” compliant
(see Section 9)
Applications
■ Free-Fall detection
■ Motion activated functions
■ Gaming and virtual reality input devices
■ Vibration monitoring and compensation
Description
The LIS331DL, belonging to the “nano” family of
ST motion sensors, is the smallest consumer low-
power three axes linear accelerometer. The
device features digital I²C/SPI serial interface
standard output and smart embedded functions.
The sensing element, capable of detecting the
acceleration, is manufactured using a dedicated
LGA 16 (3x3x1 mm)
process developed by ST to produce inertial
sensors and actuators in silicon.
The IC interface is manufactured using a CMOS
process that allows to design a dedicated circuit
which is trimmed to better match the sensing
element characteristics.
The LIS331DL has dynamically user selectable
full scales of ±2g/±8g and it is capable of
measuring accelerations with an output data rate
of 100 Hz or 400 Hz.
A self-test capability allows the user to check the
functioning of the sensor in the final application.
The device may be configured to generate inertial
wake-up/free-fall interrupt signals when a
programmable acceleration threshold is crossed
at least in one of the three axes. Thresholds and
timing of interrupt generators are programmable
by the end user on the fly.
The LIS331DL is available in plastic Land Grid
Array package (LGA) and it is guaranteed to
operate over an extended temperature range from
-40 °C to +85 °C.
Table 1. Device summary
Order code
Temp range [°C]
LIS331DL
-40 to +85
LIS331DLTR
-40 to +85
Package
LGA
LGA
Packing
Tray
Tape and reel
April 2008
Rev 3
1/42
www.st.com
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