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參數(shù)資料
| 型號： | LM89 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | 【0.75∑C Accurate, Remote Diode and Local Digital Temperature Sensor with Two-Wire Interface |
| 中文描述： | 【0.75ΣC準(zhǔn)確，遠(yuǎn)程二極管和本地數(shù)字溫度傳感器兩線接口 |
| 文件頁數(shù)： | 14/20頁 |
| 文件大?。?/td> | 745K |
| 代理商： | LM89 |
2.0 LM89 Registers
(Continued)
Command Select Address
Read Address
<
P7:P0
>
hex
12h
Power-On-Default State
<
D7:D0
>
binary
Register
Name
Register Function
Write Address
<
P7:P0
>
hex
12h
<
D7:D0
>
decimal
0
0000 0000
RTOLB
Remote Temperature Offset Low
Byte
Remote HIGH Setpoint Low Byte
Remote LOW Setpoint Low Byte
Remote T_CRIT Setpoint
Local T_CRIT Setpoint
T_CRIT Hysteresis
Manufacturers Test Registers
Remote Diode Temperature Filter
Read Manufacturer’s ID
Read Stepping or Die Revision
Code
13h
14h
19h
20h
21h
13h
14h
19h
20h
21h
0000 0000
0000 0000
0110 1110
0101 0101
0000 1010
0
0
RHSLB
RLSLB
RCS
LCS
TH
110
85
10
B0h-BEh
BFh
FEh
FFh
B0h-BEh
BFh
NA
NA
0000 0000
0000 0001
LM89 0011 0001
LM89-1 0011 0100
0
1
49
52
RDTF
RMID
RDR
2.2 LOCAL and REMOTE TEMPERATURE REGISTERS (LT, RTHB, RTLB)
(Read Only Address 00h, 01h):
BIT
Value
D7
SIGN
D6
64
D5
32
D4
16
D3
8
D2
4
D1
2
D0
1
For LT and RTHB D7–D0: Temperature Data. LSB = 1C. Two’s complement format.
(Read Only Address 10h):
BIT
Value
D7
0.5
D6
0.25
D5
0.125
D4
0
D3
0
D2
0
D1
0
D0
0
For RTLB D7–D5: Temperature Data. LSB = 0.125C. Two’s complement format.
The maximum value available from the Local Temperature register is 127; the minimum value available from the Local
Temperature register is -128. The maximum value available from the Remote Temperature register is 127.875; the minimum value
available from the Remote Temperature registers is 128.875.
2.3 STATUS REGISTER (SR)
(Read Only Address 02h):
D7
Busy
D6
D5
D4
D3
D2
D1
D0
LHIGH
LLOW
RHIGH
RLOW
OPEN
RCRIT
LCRIT
Power up default is with all bits “0” (zero).
D0: LCRIT: When set to “1” indicates a Local Critical Temperature alarm.
D1: RCRIT: When set to “1” indicates a Remote Diode Critical Temperature alarm.
D2: OPEN: When set to “1” indicates a Remote Diode disconnect.
D3: RLOW: When set to “1” indicates a Remote Diode LOW Temperature alarm
D4: RHIGH: When set to “1” indicates a Remote Diode HIGH Temperature alarm.
D5: LLOW: When set to “1” indicates a Local LOW Temperature alarm.
D6: LHIGH: When set to “1” indicates a Local HIGH Temperature alarm.
D7: Busy: When set to “1” ADC is busy converting.
2.4 CONFIGURATION REGISTER
(Read Address 03h /Write Address 09h):
D7
D6
D5
0
D4
D3
0
D2
Local
T_CRIT_A
mask
D1
0
D0
ALERT mask
RUN/STOP
Remote
T_CRIT_A
mask
Fault Queue
Power up default is with all bits “0” (zero)
D7: ALERT mask: When set to “1” ALERT interrupts are masked.
L
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14
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| LM89-1CIMM/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(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)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(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
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