LSM303DLH STMicroelectronics, LSM303DLH Datasheet - Page 39

• Manufacturer Part Number: LSM303DLH
• Description: IC, DIGITAL COMPASS, ±2g ±4g ±8g, LGA-28
• Manufacturer: STMicroelectronics
• Series: -r

Specifications of LSM303DLH

• No. Of Axes: 3
• Ic Interface Type: I2C, Serial
• Sensor Case Style: LGA
• No. Of Pins: 28
• Supply Voltage Range: 2.5V To 3.3V
• Acceleration Range: ± 2g, ± 4g, ± 8g
• Sensing Axis: Triple
• Acceleration: 2 g, 4 g, 8 g
• Sensitivity: 1 mg/digit, 2 mg/digit, 3.9 mg/digit
• Package / Case: LGA-28L
• Output Type: Linear
• Digital Output - Number Of Bits: 16 bit
• Supply Voltage (max): 3.3 V
• Supply Voltage (min): 2.5 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 30 C
• Digital Output - Bus Interface: I2C
• Package Type: LGA
• Operating Supply Voltage (min): 2.5V
• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Product Depth (mm): 5mm
• Product Height (mm): 1mm
• Product Length (mm): 5mm
• Mounting: Surface Mount
• Pin Count: 28
• Sensor Type: Accelerometer and Magnetometer
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With: 497-10689 - BOARD ADAPTER LSM303DLH DIL24497-10508 - BOARD EVAL FOR MEMS SENSORS

LSM303DLH
9.2
9.2.1
The D6 - D0 bits set the minimum duration of the Interrupt 2 event to be recognized.
Duration time steps and maximum values depend on the ODR chosen.
Magnetic field sensing register description
The magnetometer core contains a set of registers which are used to control its behavior
and to retrieve magnetic field data. The register’s address, composed of 8 bits, is used to
identify them and to read/write the data through the serial interface.
For magnetic field sensing interface, the default (factory) 7-bit slave address is 00111100b
(0x3C) for write operations, or 00111101b (0x3D) for read operations.
CRA_REG_M (00h)
The configuration register A is used to configure the device for setting the data output rate
and measurement configuration. CRA0 through CRA7 indicate bit locations, with CRA
denoting the bits that are in the configuration register. CRA7 denotes the first bit of the data
stream. The number in parentheses indicates the default value of that bit.
Table 56.
Table 57.
Table 58.
CRA7 to CRA5 These bits must be cleared for correct operation.
DO2 to DO0
MS1 to MS0
DO2
0
0
0
0
0
1
1
1
1
CRA_REG_M register
CRA_REG_M description
CRA_REG M description
Data output rate bits. These bits set the rate at which data is written to all three data
output registers
Measurement configuration bits. These bits define the measurement flow of the
device, specifically whether or not to incorporate an applied bias to the sensor into
the measurement
0
DO1
0
0
1
1
0
0
1
1
0
Doc ID 16941 Rev 1
DO0
0
1
0
1
0
1
0
1
DO2
DO1
Minimum data output rate (Hz)
DO0
Not used
0.75
1.5
3.0
7.5
15
30
75
Registers description
MS1
MS0
39/47