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参数资料
| 型号： | LIS3DHTR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PBGA16 |
| 封装： | 3 X 3 MM, 1 MM HEIGHT, GREEN, PLASTIC, LGA-16 |
| 文件页数： | 15/42页 |
| 文件大小： | 689K |
| 代理商： | LIS3DHTR |
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Digital interfaces
LIS3DH
22/42
Doc ID 17530 Rev 1
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 be read.
In the presented communication format MAK is Master acknowledge and NMAK is No
Master Acknowledge.
6.2
SPI bus interface
The LIS3DH 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.
Figure 6.
Read and write protocol
CS is the serial port enable and it is controlled by the SPI master. It goes low at the start of
the transmission and goes back high at the end. SPC is the serial port clock and it is
controlled by the SPI master. It is stopped high when CS is high (no transmission). SDI and
Table 15.
Transfer when master is receiving (reading) one byte of data from slave:
Master
ST
SAD + W
SUB
SR
SAD + R
NMAK
SP
Slave
SAK
DATA
Table 16.
Transfer when master is receiving (reading) multiple bytes of data from slave
Master ST SAD+W
SUB
SR SAD+R
MAK
NMAK SP
Slave
SAK
SAK DATA
DATA
CS
SPC
SDI
SDO
RW
AD5 AD4 AD3 AD2 AD1 AD0
DI7 DI6 DI5 DI4 DI3 DI2 DI1 DI0
DO7 DO6 DO5 DO4 DO3 DO2 DO1 DO0
MS
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LIS3DSH | 功能描述:加速计 - 板上安装 MEMS 3-Axis Nano 1.71 to 3.6V 1.6kHz RoHS:否 制造商:Murata 传感轴:Double 加速:12 g 灵敏度: 封装 / 箱体: 输出类型:Analog 数字输出 - 位数:11 bit 电源电压-最大:5.25 V 电源电压-最小:4.75 V 电源电流:4 mA 最大工作温度:+ 125 C 最小工作温度:- 40 C |
| LIS3DSHTR | 功能描述:加速计 - 板上安装 MEMS 3-Axis Nano 1.71 to 3.6V 1.6kHz RoHS:否 制造商:Murata 传感轴:Double 加速:12 g 灵敏度: 封装 / 箱体: 输出类型:Analog 数字输出 - 位数:11 bit 电源电压-最大:5.25 V 电源电压-最小:4.75 V 电源电流:4 mA 最大工作温度:+ 125 C 最小工作温度:- 40 C |
| LIS3L02AL | 功能描述:加速计 - 板上安装 3-axis +/-2g Linear MEMS Intertial Sensr RoHS:否 制造商:Murata 传感轴:Double 加速:12 g 灵敏度: 封装 / 箱体: 输出类型:Analog 数字输出 - 位数:11 bit 电源电压-最大:5.25 V 电源电压-最小:4.75 V 电源电流:4 mA 最大工作温度:+ 125 C 最小工作温度:- 40 C |
| LIS3L02AL | 制造商:STMicroelectronics 功能描述:ACCELEROMETER 3 AXIS LGA-8 302 |
| LIS3L02ALETR | 制造商:ST 功能描述:MEMS INERTIAL SENSOR: 3-Axis - ??2g/??6g LINEAR ACCELEROMETER |
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