參數(shù)資料
型號(hào): LM95213CISD
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 溫度/濕度傳感器
英文描述: 2-Diode Input and Local Digital Temperature Sensor with Two-Wire Interface and TCRIT Outputs
中文描述: DIGITAL TEMP SENSOR-SERIAL, 11BIT(s), 2Cel, SQUARE, SURFACE MOUNT
封裝: LLP-14
文件頁(yè)數(shù): 21/34頁(yè)
文件大?。?/td> 415K
代理商: LM95213CISD
Bit(s)
Bit Name
Read/
Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
7
6
5
4
3
2
1
0
SIGN
32
16
8
4
2
1
1/2
Sign bit
bit weight 32°C
bit weight 16°C
bit weight 8°C
bit weight 4°C
bit weight 2°C
bit weight 1°C
bit weight 1/2°C (0.5°C)
All registers have 2’s complement format.
The offset range for each remote is
+63.5°C/64°C. The value programmed
in this register is directly added to the
actual reading of the ADC and the
modified number is reported in the remote
value registers.
2.3 CONFIGURATION REGISTERS
2.3.1 Main Configuration Register
Register Name
Command
Byte
(Hex)
0x03
Read/
Write
D7
D6
D5
D4
D3
D2
D1
D0
POR
Default
(Hex)
0x00
Configuration
R/W
STBY
Bit(s)
Bit Name
Read/
Write
RO
Description
7
STBY
Reserved will report "0" when read.
6
R/W
Software Standby
1 – standby (when in this mode one conversion sequence can be initiated by writing
to the one-shot register)
0 – active/converting
Reserved – will report "0" when read.
5–0
RO
2.3.2 Conversion Rate Register
Register Name
Command
Byte
(Hex)
0x04
Read/
Write
D7
D6
D5
D4
D3
D2
D1
D0
POR
Default
(Hex)
0x02
Conversion Rate
R/W
CR1
CR0
Bit(s)
Bit Name
Read/
Write
RO
Description
7-2
CR[1:0]
Reserved – will report "0" when read.
1-0
R/W
Conversion rate control bits modify the time interval for conversion of the channels
enabled. The channels enabled are converted sequentially then standby mode
enabled for the remainder of the time interval.
CR[1:0]
00
01
10
11
Conversion Rate
continuous (30 ms to 104 ms)
0.364 s
1s
2.5 s
2.3.3 Channel Conversion Enable
When a conversion is disabled for a particular channel it is skipped. The continuous conversion rate is effected all other conversion
rates are not effected as extra standby time is inserted in order to compensate. See Conversion Rate Register description.
21
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