- 您現在的位置：買賣IC網 > PDF目錄358861 > LM40 (National Semiconductor Corporation) Hardware Monitor with Dual Thermal Diodes and SensorPath Bus PDF資料下載
參數資料
| 型號： | LM40 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Hardware Monitor with Dual Thermal Diodes and SensorPath Bus |
| 中文描述： | 硬件監(jiān)控雙熱二極管和SensorPath總線 |
| 文件頁數： | 20/27頁 |
| 文件大?。?/td> | 369K |
| 代理商： | LM40 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁當前第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁
2.0 Register Set
(Continued)
2.9.3 Temperature Data Readout (Addr: 001 001; 09h)
Reg
Add
Register
Name
R/
W
P
O
R
Val
Bit
15
MSb
Bit
14
Bit
13
Bit
12
Bit
11
Bit
10
Bit
9
Bit
8
Bit
7
Bit
6
Bit
5
Bit
4
Bit
3
Bit
2
Bit
1
Bit
0
LSb
001 001
Local
Temperature
Data
Readout
Processor/
Remote
Temperature
Data
Readout
R
MSb
Sign
128
C
64C 32C 16C 8C
4C
2C
1C
0.5
C
Reserved
SNUM
Reserved
0
0
0
0
Reserved
EF
Res
0
0
0
Bit
0
1
Type
RO
RO
Description
Reserved.
Will always read "0".
Reserved for Local Temperature Data Readout.
Will always read "0".
EF (Error Flag) for Remote Temperature Data Readout.
This bit indicates that an error was detected
during the measurement of the current remote Temperature sensor such as a diode fault condition. When a
diode fault occurs the value of the temperature reading will be 200h or -256C.
0: No error detected.
1: Error detected.
SNUM (Sensor Number).
This field indicates the number of the current Temperature Sensor, to which the
data in the Temperature Readout field belongs. Temperature Sensor 0 is always assigned to the local
sensor of the LM40.
0: Local temperature sensor (see
Table Thermal Diode Input Mapping
)
1-2: Remote sensor 1 and 2 (see
Table Thermal Diode Input Mapping
)
Reserved.
Will always read "0".
Temperature Readout.
This field holds the result of the temperature measurement. The active size of this
field for the LM40 is 10-bits, left justified. See
Table Temperature Data Format
for examples.
3-2
RO
5-4
15-6
RO
RO
Thermal Diode Input Mapping
Sensor Number
(SNUM)
0
1
2
Sensor Input
Local
Processor, D1+/D1-
Remote, D2+/D2-
Board Connection
none
CPU Thermal Diode
MMBT3904 Thermal Diode or GPU
Thermal Diode
All LM40 temperature data has a common format. The LM40’s temperature data format is two’s complement and has 10-bits of
resolution with the LSb having a weight of 0.5 C. The LM40 can resolve temperature between +255.5 C and -256 C, inclusive.
It can measure local temperatures between +85 C and 0 C and remote temperatures between +125 C and 0 C with an
accuracy of
±
3.0 C.
Temperature Data Format
Temperature
+140 C
+100 C
+1 C
0 C
- 0.5 C
-1 C
Binary
01 0001 1000
00 1100 1000
00 0000 0010
00 0000 0000
11 1111 1111
11 1111 1110
Hex
118h
0C8h
002h
000h
3FFh
3FEh
L
www.national.com
20
相關PDF資料 |
PDF描述 |
|---|---|
| LM4120AIM5X-5.0 | Precision Micropower Low Dropout Voltage Reference |
| LM4120AIM5-1.8 | Precision Micropower Low Dropout Voltage Reference |
| LM4120AIM5-3.3 | Precision Micropower Low Dropout Voltage Reference |
| LM4120AIM5X-2.5 | Precision Micropower Low Dropout Voltage Reference |
| LM4120AIM5X-3.3 | Precision Micropower Low Dropout Voltage Reference |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LM400 | 制造商:LM TECHNOLOGIES 功能描述:MODULE BLUETOOTH V2.0 CLASS 1 BC04 制造商:LM TECHNOLOGIES 功能描述:BLUETOOTH MODULE, BC04, CLASS 1, EDR 制造商:LM TECHNOLOGIES 功能描述:BLUETOOTH MOD, PDA, GPS, POS, BC04, CLASS 1, EDR; Supply Voltage Min:2.7V; Supply Voltage Max:3.6V; Data Rate:3Mbps; Bluetooth Version:Bluetooth 2.0 + EDR; Bluetooth Class:Class 1; Receive Sensitivity:-88dBm; Type:Bluetooth Module ;RoHS Compliant: Yes |
| LM4001 | 制造商:SEMTECH_ELEC 制造商全稱:SEMTECH ELECTRONICS LTD. 功能描述:SURFACE MOUNT SILICON RECTIFIERS |
| LM4001G | 制造商:SEMTECH_ELEC 制造商全稱:SEMTECH ELECTRONICS LTD. 功能描述:SURFACE MOUNT GLASS PASSIVATED SILICON RECTIFIERS |
| LM4002 | 制造商:SEMTECH_ELEC 制造商全稱:SEMTECH ELECTRONICS LTD. 功能描述:SURFACE MOUNT SILICON RECTIFIERS |
| LM4002G | 制造商:SEMTECH_ELEC 制造商全稱:SEMTECH ELECTRONICS LTD. 功能描述:SURFACE MOUNT GLASS PASSIVATED SILICON RECTIFIERS |
發(fā)布緊急采購，3分鐘左右您將得到回復。