LIS302DLTR STMicroelectronics, LIS302DLTR Datasheet - Page 20

• Manufacturer Part Number: LIS302DLTR
• Description: ACCELEROMETER 3AXIS MEMS 14-LGA
• Manufacturer: STMicroelectronics

Specifications of LIS302DLTR

• Featured Product: STM32 Cortex-M3 Companion Products
• 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
• Shutdown: Yes
• For Use With: 497-9047 - BOARD DEMO ACCELEROMETER DIL24497-8373 - BOARD EVAL EXTENSION SN250497-8204 - BOARD ADAPTER LIS302SG DIL24497-8203 - BOARD DEMO LIS302SG497-6404 - BOARD EVAL SPZB260 MOD FOR STR9497-6342 - BOARD EVALUATION FOR LIS302DL497-6246 - BOARD EVAL ACCELEROM LIS302ALK497-6227 - BOARD ADAPTER 20DIP LIS3LV02DL497-6226 - BOARD EVAL ACCELEROM LIS3LV02DL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-5911-2

Digital interfaces
5.2
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Table 13.
Table 14.
Table 15.
Data are transmitted in byte format (DATA). Each data transfer contains 8 bits. The number
of bytes transferred per transfer is unlimited. Data is transferred with the Most Significant bit
(MSb) first. If a receiver can’t receive another complete byte of data until it has performed
some other function, it can hold the clock line, SCL LOW to force the transmitter into a wait
state. Data transfer only continues when the receiver is ready for another byte and releases
the data line. If a slave receiver doesn’t acknowledge the slave address (i.e. it is not able to
receive because it is performing some real time function) the data line must be left HIGH by
the slave. The Master can then abort the transfer. A LOW to HIGH transition on the SDA line
while the SCL line is HIGH is defined as a STOP condition. Each data transfer must be
terminated by the generation of a STOP (SP) condition.
In order to read multiple bytes, it is necessary to assert the most significant bit of the sub-
address field. In other words, SUB(7) must be equal to 1 while SUB(6-0) represents the
address of first register to read.
In the presented communication format MAK is Master Acknowledge and NMAK is No
Master Acknowledge.
SPI bus interface
The LIS302DL SPI is a bus slave. The SPI allows to write and read the registers of the
device.
The Serial Interface interacts with the outside world with 4 wires: CS, SPC, SDI and SDO.
Master
Master
Slave
Slave
Master
Slave
ST
ST
Transfer when Master is receiving (reading) one byte of data from slave
ransfer when master is receiving (reading)
Multiple bytes of data from slave
SAD + W
SAD + W
DATA
SAK
SAK
SUB
SUB
MAK
SAK
SAK
SR
SR
SAD + R
DATA
SAD + R
SAK
SAK
NMAK
DATA
DATA
NMAK
LIS302DL
SP
MAK
SP