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PDF LIS3MDL Data sheet ( Hoja de datos )
| Número de pieza | LIS3MDL | |
| Descripción | Digital output magnetic sensor | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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LIS3MDL
Digital output magnetic sensor:
ultra-low-power, high-performance 3-axis magnetometer
Datasheet - production data
LGA-12 (2.0x2.0x1.0 mm)
Features
Wide supply voltage, 1.9 V to 3.6 V
Independent IO supply (1.8 V)
±4/ ±8/ ±12/ 16 gauss selectable magnetic full
scale
Continuous and single-conversion modes
16-bit data output
Interrupt generator
Self-test
I2C/SPI digital output interface
Power-down mode/ low-power mode
ECOPACK®, RoHS and “Green” compliant
Description
The LIS3MDL is an ultra-low-power high-
performance three-axis magnetic sensor.
The LIS3MDL has user-selectable full scales of
±4/ 8/ 12/16 gauss.
The self-test capability allows the user to check
the functioning of the sensor in the final
application.
The device may be configured to generate
interrupt signals for magnetic field detection.
The LIS3MDL includes an I2C serial bus interface
that supports standard and fast mode (100 kHz
and 400 kHz) and SPI serial standard interface.
The LIS3MDL is available in a small thin plastic
land grid array package (LGA) and is guaranteed
to operate over an extended temperature range of
-40 °C to +85 °C.
Applications
Magnetometers
Compasses
Order codes
LIS3MDL
LIS3MDLTR
Table 1. Device summary
Temperature range [C]
Package
-40 to +85
LGA-12
-40 to +85
LGA-12
Packaging
Tray
Tape and reel
May 2015
This is information on a product in full production.
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LIS3MDL
List of figures
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
SPI slave timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
I2C slave timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
LIS3MDL electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Read and write protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
SPI read protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Multiple byte SPI read protocol (2-byte example) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
SPI write protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Multiple byte SPI write protocol (2-byte example). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
SPI read protocol in 3-wire mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
VFLGA 2x2x1 12LD pitch 0.5 mm package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
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LIS3MDL
Magnetic and electrical specifications
2.4.2
Sensor I2C - inter IC control interface
Subject to general operating conditions for Vdd and Top.
Symbol
Table 7. I2C slave timing values
Parameter
I2C standard mode (1)
Min.
Max.
I2C fast mode (1)
Min.
Max.
f(SCL)
tw(SCLL)
tw(SCLH)
tsu(SDA)
th(SDA)
tr(SDA) tr(SCL)
tf(SDA) tf(SCL)
th(ST)
tsu(SR)
SCL clock frequency
SCL clock low time
SCL clock high time
SDA setup time
SDA data hold time
SDA and SCL rise time
SDA and SCL fall time
START condition hold time
Repeated START condition
setup time
0
4.7
4.0
250
0
4
4.7
100
3.45
1000
300
0
1.3
0.6
100
0
20 + 0.1Cb(2)
20 + 0.1Cb(2)
0.6
0.6
400
0.9
300
300
tsu(SP)
STOP condition setup time
4
tw(SP:SR)
Bus free time between STOP
and START condition
4.7
1. Data based on standard I2C protocol requirement, not tested in production.
2. Cb = total capacitance of one bus line, in pF.
0.6
1.3
Unit
kHz
μs
ns
μs
ns
μs
6'$
67$57
Figure 4. I2C slave timing diagram
5(3($7('
67$57
WVX 65
WZ 63 65
67$57
WI 6'$
6&/
WU 6'$
WVX 6'$
WK 6'$
WVX 63
6723
Note:
WK 67 WZ 6&//
WZ 6&/+
WU 6&/
WI 6&/
Measurement points are done at 0.2• Vdd_IO and 0.8• Vdd_IO, for both ports.
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