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ADT75ARM-REEL7

更新时间： 2024-02-08 15:35:20
品牌 Logo 应用领域
亚德诺 - ADI 传感器换能器温度传感器输出元件
页数 文件大小 规格书
24页 389K
描述
+-1∑C Accurate, 12-Bit Digital Temperature Sensor

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ADT75ARM-REEL7 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：ActiveReach Compliance Code：unknown
风险等级：5.76Is Samacsys：N
最大精度（摄氏度）：3 Cel其他特性：ACCURACY FOR A GRADE
主体宽度：3 mm主体高度：0.85 mm
主体长度或直径：3 mm外壳：PLASTIC
安装特点：SURFACE MOUNT位数：12
最大工作电流：0.001 mA最高工作温度：125 °C
最低工作温度：-55 °C输出接口类型：I2C INTERFACE
封装形状/形式：SQUARE传感器/换能器类型：TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL
最大供电电压：5.5 V最小供电电压：3 V
表面贴装：YES端子面层：NOT SPECIFIED
端接类型：SOLDERBase Number Matches：1

ADT75ARM-REEL7 数据手册

 浏览型号ADT75ARM-REEL7的Datasheet PDF文件第17页浏览型号ADT75ARM-REEL7的Datasheet PDF文件第18页浏览型号ADT75ARM-REEL7的Datasheet PDF文件第19页浏览型号ADT75ARM-REEL7的Datasheet PDF文件第21页浏览型号ADT75ARM-REEL7的Datasheet PDF文件第22页浏览型号ADT75ARM-REEL7的Datasheet PDF文件第23页 
 ꢁT75C  
C
SMBALERT  
1.  
is pulled low.  
SMBus ALERT  
2. Master initiates a read operation and sends the SMBus alert  
response address (ARA = 0001 100). This reserved  
SMBus/I2C address must not be used as a specific device  
address.  
The OS/ALERT pin can behave as a SMBus alert pin when the  
SMBus alert function is enabled by setting Bit D7 in the  
configuration register. The interrupt mode must also be selected  
(Bit D1 in the configuration register). The OS/ALERT pin is an  
open-drain output and requires a pull-up to VDD. Several  
SMBus alert outputs can be wire-AND’ed together, so that the  
common line goes low if one or more of the SMBus alert  
outputs goes low. The polarity of the OS/ALERT pin must be set  
for active low for a number of outputs to be wire-AND’ed  
together.  
3. The device whose SMBus alert output is low responds to the  
SMBus alert response address and the master reads its device  
address. As the device address is seven bits long, the ADT75’s  
LSB is free to be used as an indicator as to which temperature  
limit was eꢀceeded. The LSB is high if the temperature is  
greater than or equal to TOS, and the LSB is low if the  
temperature is less than THYST. The address of the device is now  
known and it can be interrogated in the usual way.  
SMBALERT  
The OS/ALERT output can operate as a  
Slave devices on the SMBus normally cannot signal to the  
SMBALERT  
SMBALERT  
allows them to do so.  
the SMBus general call address.  
function.  
4. If more than one devices’ SMBus alert output is low, the  
one with the lowest device address has priority, which is in  
accordance with normal SMBus specifications.  
master that they want to talk, but the  
function  
is used in conjunction with  
Once the ADT75 has responded to the SMBus alert response  
One or more SMBus alert outputs can be connected to a  
SMBALERT  
address, it resets its SMBus alert output. If the  
line  
SMBALERT  
common  
SMBALERT  
line connected to the master. When the  
remains low, the master sends the ARA again. It continues to do  
line is pulled low by one of the devices, the  
SMBALERT  
this until all devices whose  
responded.  
outputs were low have  
following procedure occurs as shown in Figure 20.  
MASTER  
RECEIVES  
SMBALERT  
MASTER  
ACK  
MASTER  
NACK  
DEVICE ACK  
MASTER  
RECEIVES  
SMBALERT  
ALERT RESPONSE  
NO  
START  
RD ACK DEVICE ADDRESS  
STOP  
ACK  
ADDRESS  
ALERT RESPONSE  
DEVICE  
ADDRESS  
NO  
ACK  
START  
RD ACK  
ACK  
PEC  
STOP  
ADDRESS  
MASTER SENDS  
ARA AND READ  
COMMAND  
DEVICE SENDS  
ITS ADDRESS  
MASTER SENDS  
ARA AND READ  
COMMAND  
DEVICE SENDS DEVICE SENDS  
ITS ADDRESS ITS PEC DATA  
SMBALERT  
Figure 20. ADT75 Responds to  
ARA  
SMBALERT  
Figure 21. ADT75 Responds to  
ARA  
with Packet Error Checking (PEC)  
Rev. 0 | Page 20 of 24  
 
 
 
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