參數(shù)資料
型號(hào)： LM83CIMQAX
廠商： National Semiconductor Corporation
元件分類(lèi)： 溫度/濕度傳感器
英文描述： Triple-Diode Input and Local Digital Temperature Sensor with Two-Wire Interface
中文描述： 三二極管輸入和本地?cái)?shù)字溫度傳感器兩線接口
文件頁(yè)數(shù)： 14/20頁(yè)
文件大?。?/td> 331K
代理商： LM83CIMQAX
1.0 Functional Description
(Continued)
Command Se-
lect Address
<
P7:P0
>
hex
Power On Default State
Register Name
Register Function
<
D7:D0
>
binary
<
D7:D0
>
deci-
mal
5Ch-6Fh and
F0h-FDh
FEh
FFh
Reserved for Future Use
0000 0001
1
RMID
RSR
Read Manufacturers ID
Read Stepping or Die
Revision Code
2.2 LOCAL and D1, D2 and D3 REMOTE TEMPERATURE REGISTERS (LT, D1RT, D2RT, and D3RT)
(Read Only Address 00h, 01h, 30h and 31h):
D7
D6
D5
D4
D3
D2
D1
MSB
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
D7–D0: Temperature Data. One LSB = 1C. Two’s complement format.
D0
LSB
2.3 STATUS REGISTERS 1 and 2
2.3.1 Status Register 1 (SR1)
(Read Only Address 02h):
D7
D6
0
LHIGH
Power up default is with all bits “0” (zero).
D0: LCRIT: When set to a 1 indicates an Local Critical Temperature alarm.
D1: D2CRIT: When set to a 1 indicates a Remote Diode 2 Critical Temperature alarm.
D2: D2OPEN: When set to 1 indicates a Remote Diode 2 disconnect.
D4: D2RHIGH: When set to 1 indicates a Remote Diode 2 HIGH Temperature alarm.
D6: LHIGH: When set to 1 indicates a Local HIGH Temperature alarm.
D7, D5, and D3: These bits are always set to 0 and reserved for future use.
D5
0
D4
D3
0
D2
D1
D0
D2RHIGH
D2OPEN
D2CRIT
LCRIT
Status Register 2
2.3.2 Status Register 2 (SR2)
(Read Only Address 35h):
D7
D6
D1RHIGH
0
D1OPEN
Power up default is with all bits “0” (zero).
D0: D1CRIT, when set to 1 indicates a Remote Diode 1 Critical Temperature alarm.
D1: D3CRIT, when set to 1 indicates a Remote Diode 3 Critical Temperature alarm.
D2: D3OPEN, when set to 1 indicates a Remote Diode 3 disconnect.
D4: D3RHIGH, when set to 1 indicates a Remote Diode 3 HIGH Temperature alarm.
D5: D1OPEN, when set to 1 indicates a Remote Diode 1 disconnect.
D5
D4
D3
0
D2
D1
D0
D3RHIGH
D3OPEN
D3CRIT
D1CRIT
D7: D1RHIGH, when set to 1 indicates a Remote Diode 1
HIGH Temperature alarm.
D6, and D3: These bits are always set to 0 and reserved for future use.
2.4 MANUFACTURERS ID REGISTER
(Read Address FEh) Default value 01h.
2.5 CONFIGURATION REGISTER
(Read Address 03h/Write Address 09h):
D7
INT mask
D6
0
D5
D1
D4
D2
D3
D3
D2
Local
T_CRIT_A
mask
D1
D0
0
T_CRIT_A
mask
T_CRIT_A
mask
T_CRIT_A
mask
INT Inversion
Power up default is with all bits “0” (zero).
D7: INT mask: When set to 1 INT interrupts are masked.
L
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