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參數資料
| 型號： | LM95221CIMMX |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | Dual Remote Diode Digital Temperature Sensor with SMBus Interface |
| 中文描述： | 雙遠程二極管數字溫度傳感器，帶有SMBus接口 |
| 文件頁數： | 11/16頁 |
| 文件大小： | 282K |
| 代理商： | LM95221CIMMX |
1.0 Functional Description
(Continued)
1.8 SERIAL INTERFACE RESET
In the event that the SMBus Master is RESET while the
LM95221 is transmitting on the SMBDAT line, the LM95221
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 LM95221 SMBus state
machine resets to the SMBus idle state if either SMB-
DAT or SMBCLK are held low for more than 35ms
(t
). 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 LM95221 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 LM95221 will respond properly to an
SMBus start condition at any point during the communi-
cation.After the start the LM95221 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
3
4
Comments
2 status bits and 1 busy bit
Includes conversion rate
control
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 LM95221.
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
3
3
All unused bits will report zero
All unused bits will report zero
All unused bits will report zero
01h
61h
L
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11
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LM95221CIMMX/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 |
| LM95221EVAL | 功能描述:溫度傳感器開發(fā)工具 LM95221 EVAL BOARD RoHS:否 制造商:Texas Instruments 產品類型:Temperature Sensors and Control ICs 工具用于評估:MSP430G2553 接口類型:USB 工作電源電壓: 工作電源電流: |
| LM95231 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:TruTherm Precision Dual Remote Diode Temperature Sensor with SMBus Interface |
| LM95231_06 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Precision Dual Remote Diode Temperature Sensor with SMBus Interface and TruTherm Technology |
| LM95231BIMM | 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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