LIS35DETR STMicroelectronics, LIS35DETR Datasheet - Page 25

• Manufacturer Part Number: LIS35DETR
• Description: IC ACCELEROMETER 3AXIS 14LGA
• Manufacturer: STMicroelectronics

Specifications of LIS35DETR

• Axis: X, Y, Z
• Acceleration Range: ±2.3g, 9.2g
• Sensitivity: 18mg/digit, 72mg/digit
• Voltage - Supply: 2.16 V ~ 3.6 V
• Output Type: Digital
• Bandwidth: 100Hz ~ 400Hz Selectable
• Interface: I²C, SPI
• Mounting Type: Surface Mount
• Package / Case: 14-LGA
• Sensing Axis: X, Y, Z
• Acceleration: 2 g, 8 g
• Digital Output - Number Of Bits: 8 bit
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 2.16 V
• Supply Current: 0.3 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Digital Output - Bus Interface: I2C, SPI
• Mounting Style: SMD/SMT
• Shutdown: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

LIS35DE
7
7.1
Register description
The device contains a set of registers which are used to control its behavior and to retrieve
acceleration data. The registers address, made of 7 bits, is used to identify them and to
write the data through serial interface.
CTRL_REG1 (20h)
Table 17.
1. CTRL_REG1[4:3] value is loaded at boot, ‘0’ value must not be changed.
Table 18.
DR bit allows to select the data rate at which acceleration samples are produced.
The default value is 0 which corresponds to a data-rate of 100Hz. By changing the content
of DR to “1” the selected data-rate will be set equal to 400Hz.
PD bit allows to turn on the turn the device out of power-down mode. The device is in power-
down mode when PD = “0” (default value after boot). The device is in normal mode when PD
is set to 1.
Zen bit enables the generation of Data Ready signal for Z-axis measurement channel when
set to 1. The default value is 1.
Yen bit enables the generation of Data Ready signal for Y-axis measurement channel when
set to 1. The default value is 1.
Xen bit enables the generation of Data Ready signal for X-axis measurement channel when
set to 1. The default value is 1.
DR
PD
FS
Zen
Yen
Xen
DR
CTRL_REG1 (20h) register
CTRL_REG1 (20h) register description
Data rate selection. Default value: 0
(0: 100 Hz output data rate; 1: 400 Hz output data rate)
Power Down Control. Default value: 0
(0: power down mode; 1: active mode)
Full Scale selection. Default value: 0
(refer to
Z axis enable. Default value: 1
(0: Z axis disabled; 1: Z axis enabled)
Y axis enable. Default value: 1
(0: Y axis disabled; 1: Y axis enabled)
X axis enable. Default value: 1
(0: X axis disabled; 1: X axis enabled)
PD
Table 2
FS
for typical full scale value)
Doc ID 15594 Rev 1
0
(1)
0
(1)
Zen
Register description
Yen
Xen
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