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| 型号： | LM99 |
| 厂商： | National Semiconductor Corporation |
| 元件分类： | 温度/湿度传感器 |
| 英文描述： | 【1C Accurate, High Temperature, Remote Diode Temperature Sensor with Two-Wire Interface |
| 中文描述： | 【集成电路准确，高温，远程二极管温度传感器，两线接口 |
| 文件页数： | 4/20页 |
| 文件大小： | 349K |
| 代理商： | LM99 |
1.0 Functional Description (Continued)
1.9.1 SMBus Timing Diagrams
LM99 Timing Diagram
1.10 SERIAL INTERFACE RESET
In the event that the SMBus Master is RESET while the
LM99 is transmitting on the SMBData line, the LM99 must be
returned to a known state in the communication protocol.
This may be done in one of two ways:
1.
When SMBData is LOW, the LM99 SMBus state ma-
chine resets to the SMBus idle state if either SMBData
or SMBCLK are held low for more than 35 ms (t
TIM-
EOUT
). Note that according to SMBus specification 2.0 all
devices are to timeout when either the SMBCLK or
SMBData lines are held low for 25-35 ms. Therefore, to
insure a timeout of all devices on the bus the SMBCLK
or SMBData lines must be held low for at least 35 ms.
2.
When SMBData is HIGH, have the master initiate an
SMBus start. The LM99 will respond properly to an
SMBus start condition at any point during the communi-
cation. After the start the LM99 will expect an SMBus
Address address byte.
20053810
(a) Serial Bus Write to the internal Command Register followed by a the Data Byte
20053811
(b) Serial Bus Write to the Internal Command Register
20053812
(c) Serial Bus Read from a Register with the Internal Command Register preset to desired value.
FIGURE 7. SMBus Timing Diagrams
LM99
www.national.com
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相关PDF资料 |
PDF描述 |
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| LMF/1/40209/522 | 12 CONTACT(S), BRASS, FEMALE, CIRCULAR CONNECTOR, SOCKET |
| LMF/1/40209/523 | 12 CONTACT(S), BRASS, FEMALE, CIRCULAR CONNECTOR, SOCKET |
| LMF/1/40209/524 | 12 CONTACT(S), BRASS, FEMALE, CIRCULAR CONNECTOR, SOCKET |
| LMF/1/40209/525 | 12 CONTACT(S), BRASS, FEMALE, CIRCULAR CONNECTOR, SOCKET |
| LMF/1/40210/520 | 4 CONTACT(S), BRASS, FEMALE, CIRCULAR CONNECTOR, SOCKET |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LM99-1CIMM | 功能描述:板上安装温度传感器 RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| LM99-1CIMM/NOPB | 功能描述:板上安装温度传感器 RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| LM99-1CIMMX | 功能描述:板上安装温度传感器 RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| LM99-1CIMMX/NOPB | 功能描述:板上安装温度传感器 RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| LM99-1EVAL | 功能描述:BOARD EVALUATION LM99-1 RoHS:否 类别:编程器，开发系统 >> 评估板 - 传感器 系列:PowerWise® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- |
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