參數(shù)資料
型號(hào)： LSM303DLHTR
廠商： STMICROELECTRONICS
元件分類(lèi)： 模擬信號(hào)調(diào)理
英文描述： SPECIALTY ANALOG CIRCUIT, PBGA28
封裝： 5 X 5 MM, 1 MM HEIGHT, ROHS COMPLIANT, PLASTIC, LGA-16
文件頁(yè)數(shù)： 19/47頁(yè)
文件大?。?/td> 585K
代理商： LSM303DLHTR
Digital interfaces
LSM303DLH
26/47
Doc ID 16941 Rev 1
The SCL_M and SDA_M lines in this bus specification can be connected to a host of
devices. The bus can be a single master to multiple slaves, or it can be a multiple master
configuration. All data transfers are initiated by the master device which is responsible for
generating the clock signal, and the data transfers are 8 bits long. All devices are addressed
by the unique 7-bit address of the I2C. After each 8-bit transfer, the master device generates
a 9th clock pulse, and releases the SDA_M line.
The receiving device (addressed slave) pulls the SDA_M line low to acknowledge (ACK) the
successful transfer, or leaves the SDA_M high to negative acknowledge (NACK). As per the
I2C specification, all transitions in the SDA_M line must occur when SCL_M is low. This
requirement leads to two unique conditions on the bus associated with the SDA_M
transitions when SCL_M is high. The master device pulling the SDA line low while the
SCL_M line is high indicates the Start (S) condition, while the Stop (P) condition is indicated
by the SDA_M line pulled high while the SCL_M line is high. The I2C protocol also allows for
the Restart condition, in which the master device issues a second start condition without
issuing a stop.
All bus transactions begin with the master device issuing the start sequence followed by the
slave address byte. The address byte contains the slave address; the upper 7 bits (bits7-1),
and the least significant bit (LSb). The LSb of the address byte designates if the operation is
a read (LSb=1) or a write (LSb=0). At the 9th clock pulse, the receiving slave device issues
the ACK (or NACK). Following these bus events, the master sends data bytes for a write
operation, or the slave clocks out data with a read operation. All bus transactions are
terminated with the master issuing a stop sequence.
I2C bus control can be implemented with either hardware logic or in software. Typical
hardware designs release the SDA_M and SCL_M lines as appropriate to allow the slave
device to manipulate these lines. In a software implementation, care must be taken to
perform these tasks in code.
Magnetic signal interface reading/writing
The interface uses an address pointer to indicate which register location is to be read from
or written to. These pointer locations are sent from the master to this slave device and
succeed the 7-bit address plus 1 bit read/write identifier.
To minimize the communication between the master and magnetic digital interface of the
LSM303DLH, the address pointer is updated automatically without master intervention.
This automatic address pointer update has two additional features. First, when address 12
or higher is accessed the pointer updates to address 00, and secondly when address 09 is
reached, the pointer rolls back to address 03. Logically, the address pointer operation
functions as shown below.
●
if address pointer = 09, then address pointer = 03
●
while if address pointer >12, then address pointer = 0
●
while address pointer = address pointer + 1
●
the address pointer value itself cannot be read via the I2C bus.
Any attempt to read an invalid address location returns 0’s, and any write to an invalid
address location or an undefined bit within a valid address location is ignored by this device.
Table 16.
SAD+Read/Write patterns
Command
SAD[6:0]
R/W
SAD+R/W
Read
0011110
1
00111101 (3Dh)
Write
0011110
0
00111100 (3Ch)
相關(guān)PDF資料
PDF描述
LSM330DL SPECIALTY ANALOG CIRCUIT, PBGA28
LSN-0.75/16-D12HJ-C 1-OUTPUT 12.8 W DC-DC REG PWR SUPPLY MODULE
LSN-1.8/16-D12HJ-C 1-OUTPUT 28.8 W DC-DC REG PWR SUPPLY MODULE
LSN-1.2/16-D12HJ-C 1-OUTPUT 19.2 W DC-DC REG PWR SUPPLY MODULE
LSN-2.5/16-D12HJ-C 1-OUTPUT 40 W DC-DC REG PWR SUPPLY MODULE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LSM303DLM 功能描述:加速計(jì) - 板上安裝 3axis accelerometr & 3-axis magnetometer RoHS:否 制造商:Murata 傳感軸:Double 加速:12 g 靈敏度: 封裝 / 箱體: 輸出類(lèi)型:Analog 數(shù)字輸出 - 位數(shù):11 bit 電源電壓-最大:5.25 V 電源電壓-最小:4.75 V 電源電流:4 mA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C
LSM303DLMTR 功能描述:加速計(jì) - 板上安裝 3-Axis 2.16V to 3.6V 3D Magnetic 3-Ch RoHS:否 制造商:Murata 傳感軸:Double 加速:12 g 靈敏度: 封裝 / 箱體: 輸出類(lèi)型:Analog 數(shù)字輸出 - 位數(shù):11 bit 電源電壓-最大:5.25 V 電源電壓-最小:4.75 V 電源電流:4 mA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C
LSM303DLMTR-CUT TAPE 制造商:ST 功能描述:LSM303DLM Series 3 Axis ?/?/? g 3.6 V Digital Output Accelerometer - LGA-28L
LSM303DTR 功能描述:加速計(jì) - 板上安裝 Ultra Compact High Perf E-Compass 3D accelerometer and 3D magnetometer module RoHS:否 制造商:Murata 傳感軸:Double 加速:12 g 靈敏度: 封裝 / 箱體: 輸出類(lèi)型:Analog 數(shù)字輸出 - 位數(shù):11 bit 電源電壓-最大:5.25 V 電源電壓-最小:4.75 V 電源電流:4 mA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C
LSM315 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:3 AMP SCHOTTKY ORING RECTIFIER
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*