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參數資料
| 型號： | LM95241CIMM |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | Dual Remote Diode Temperature Sensor with SMBus Interface and TruTherm⑩ Technology (65nm/90nm) |
| 中文描述： | DIGITAL TEMP SENSOR-DUAL TRIP POINT |
| 封裝： | MO-187, MSOP-8 |
| 文件頁數： | 12/19頁 |
| 文件大?。?/td> | 708K |
| 代理商： | LM95241CIMM |
1.0 Functional Description
(Continued)
1.8 SERIAL INTERFACE RESET
In the event that the SMBus Master is RESET while the
LM95241 is transmitting on the SMBDAT line, the LM95241
must be returned to a known state in the communication
protocol. This may be done in one of two ways:
1.
When SMBDAT is LOW, the LM95241 SMBus state
machine resets to the SMBus idle state if either SMB-
DAT or SMBCLK are held low for more than 35ms
(t
TIMEOUT
). Note that according to SMBus specification
2.0 all devices are to timeout when either the SMBCLK
or SMBDAT lines are held low for 25-35ms. Therefore, to
insure a timeout of all devices on the bus the SMBCLK
or SMBDAT lines must be held low for at least 35ms.
2.0 LM95241 Registers
Command register selects which registers will be read from or written to. Data for this register should be transmitted during the
Command Byte of the SMBus write communication.
2.
When SMBDAT is HIGH, have the master initiate an
SMBus start. The LM95241 will respond properly to an
SMBus start condition at any point during the communi-
cation.After the start the LM95241 will expect an SMBus
Address address byte.
1.9 ONE-SHOT CONVERSION
The One-Shot register is used to initiate a single conversion
and comparison cycle when the device is in standby mode,
after which the device returns to standby. This is not a data
register and it is the write operation that causes the one-shot
conversion. The data written to this address is irrelevant and
is not stored. A zero will always be read from this register.
P7
P6
P5
P4
Command
P3
P2
P1
P0
P0-P7: Command
Register Summary
Name
Status Register
Configuration Register
Command
(Hex)
02h
03h
Power-On
Default Value
(Hex)
-
00h
Read/Write
RO
R/W
# of used
bits
5
5
Comments
4 status bits and 1 busy bit
Includes conversion rate
control
Controls thermal diode filter
setting
Selects the 2N3904 or Intel
processor on 65nm or 90nm
process thermal diode model
Enables or disables TruTherm
technology for Remote Diode
measurements
Activates one conversion for
all 3 channels if the chip is in
standby mode (i.e.
RUN/STOP bit = 1). Data
transmitted by the host is
ignored by the LM95241.
Remote Diode Filter Control
06h
05h
R/W
2
Remote Diode Model Type
Select
30h
01h
R/W
2
Remote Diode TruTherm
Mode Control
07h
01h
6
1-shot
0Fh
-
WO
-
Local Temperature MSB
Remote Temperature 1 MSB
Remote Temperature 2 MSB
Local Temperature LSB
Remote Temperature 1 LSB
Remote Temperature 2 LSB
Manufacturer ID
Revision ID
10h
11h
12h
20h
21h
22h
FEh
FFh
-
-
-
-
-
-
RO
RO
RO
RO
RO
RO
RO
RO
8
8
8
2
All unused bits will report zero
All unused bits will report zero
All unused bits will report zero
3/5
3/5
01h
A4h
L
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12
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LM95241CIMM/NOPB | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| LM95241CIMM-1 | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| LM95241CIMM-1/NOPB | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| LM95241CIMM-2 | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| LM95241CIMM-2/NOPB | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
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