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PDF LIS331HH Data sheet ( Hoja de datos )
| Número de pieza | LIS331HH | |
| Descripción | MEMS digital output motion sensor | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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LIS331HH
MEMS digital output motion sensor
ultra low-power high full-scale 3-axes “nano” accelerometer
Preliminary data
Features
■ Wide supply voltage, 2.16 V to 3.6 V
■ Low voltage compatible IOs, 1.8 V
■ Ultra low-current mode consumption
down to 10 µA
■ ±6g/±12g/±24g dynamically selectable full-
scale
■ I2C/SPI digital output interface
■ 16 bit data output
■ 2 independent programmable interrupt engines
■ Sleep to wake-up function
■ 6D orientation detection
■ Embedded self-test
■ 10000 g high shock survivability
■ ECOPACK® RoHS and “Green” compliant (see
Section 8)
Applications
■ Pedometer
■ Gaming and virtual reality input devices
■ Motion activated functions
■ Impact recognition and logging
■ Intelligent power saving for handheld devices
■ Vibration monitoring and compensation
LGA16 (3x3x1 mm)
accelerometer belonging to the “nano” family, with
digital I2C/SPI serial interface standard output.
The device features ultra low-power operational
modes that allow advanced power saving and
smart sleep to wake-up functions.
The LIS331HH has dynamically user selectable
full scales of ±6g/±12g/±24g and it is capable of
measuring accelerations with output data rates
from 0.5 Hz to 1 kHz. The self-test capability
allows the user to check the functioning of the
sensor in the final application.
The device contains 2 indipendent interrupt
engines able to recognize dedicated inertial
events.
Thresholds and timing of interrupt generators are
programmable by the end user on the fly.
The LIS331HH is available in small thin plastic
land grid array package (LGA) and it is
guaranteed to operate over an extended
temperature range from -40 °C to +85 °C.
Description
The LIS331HH is an ultra low-power high
performance high full-scale three axes linear
Table 1. Device summary
Order codes
Temperature range [° C]
LIS331HH
-40 to +85
LIS331HHTR
-40 to +85
Package
LGA16
LGA16
Packaging
Tray
Tape and reel
October 2009
Doc ID 16366 Rev 1
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without notice.
1/37
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LIS331HH
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Table 49.
Table 50.
Table 51.
Table 52.
Table 53.
Table 54.
INT2_SRC description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
INT2_THS register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
INT2_THS description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
INT2_DURATION register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
INT2_DURATION description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Doc ID 16366 Rev 1
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LIS331HH
Mechanical and electricwawlws.pDeactaifSihceaetti4oUn.csom
2.3 Communication interface characteristics
2.3.1
SPI - serial peripheral interface
Subject to general operating conditions for Vdd and Top.
Table 5. SPI slave timing values
Symbol
Parameter
tc(SPC)
fc(SPC)
tsu(CS)
th(CS)
tsu(SI)
th(SI)
tv(SO)
th(SO)
tdis(SO)
SPI clock cycle
SPI clock frequency
CS setup time
CS hold time
SDI input setup time
SDI input hold time
SDO valid output time
SDO output hold time
SDO output disable time
Value (1)
Min Max
100
10
6
8
5
15
50
9
50
Unit
ns
MHz
ns
Figure 3. SPI slave timing diagram (2)
CS (3)
SPC (3)
tsu(CS)
SDI (3)
SDO (3)
tc(SPC)
tsu(SI)
th(SI)
MSB IN
tv(SO)
MSB OUT
th(SO)
th(CS)
(3)
(3)
LSB IN
(3)
tdis(SO)
LSB OUT
(3)
1. Values are guaranteed at 10 MHz clock frequency for SPI with both 4 and 3 wires, based on characterization results, not
tested in production
2. Measurement points are done at 0.2·Vdd_IO and 0.8·Vdd_IO, for both Input and output port
3. When no communication is on-going, data on CS, SPC, SDI and SDO are driven by internal pull-up resistors
Doc ID 16366 Rev 1
11/37
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| PDF Descargar | [ Datasheet LIS331HH.PDF ] | |
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