參數(shù)資料
型號： LM81CIMT-3
英文描述： DATA ACQ SYSTEM|6-CHANNEL|8-BIT|TSSOP|24PIN|PLASTIC
中文描述： 數(shù)據(jù)ACQ木材系統(tǒng)| 6聲道| 8位| TSSOP封裝| 24針|塑料
文件頁數(shù)： 19/33頁
文件大?。?/td> 388K
代理商： LM81CIMT-3
Functional Description
(Continued)
8.0 TEMPERATURE MEASUREMENT SYSTEM
The LM81 temperature sensor and ADC produce 9-bit or
12-bit two’s-complement temperature data. A digital com-
parator
compares
the
temperature
user-programmable High, Low, Critical setpoints and Hyster-
esis values.
data
to
the
8.1 Temperature Data Format
Temperature data can be read from the Temperature, T
HIGH
setpoint, T
HIHYST
setpoint, T
LOW
setpoint, T
C
setpoint and
T
HYST
Offset registers; and written to the T
HIGH
setpoint,
T
HIHYST
, T
LOW
setpoint, T_CRIT setpoint and T
HYST
offset
registers. T
HIGH
setpoint, T
LOW
setpoint, T_CRIT setpoint
temperature data is represented by an 8-bit, two’s comple-
ment word with an LSB (Least Significant Bit) equal to 1C:
Temperature
Digital Output
Binary
0111 1101
0001 1001
0000 0001
0000 0000
1111 1111
1110 0111
1101 1000
Hex
7Dh
19h
01h
00h
FFh
E7h
D8h
+125C
+25C
+1.0C
+0C
1.0C
25C
40C
By default Temperature Register data is represented by a
9-bit two’s complement digital word with the LSB having a
resolution of 0.5C:
Temperature
Digital Output
Binary
0 1111 1010
0 0011 0010
0 0000 0011
0 0000 0000
1 1111 1111
1 1100 1110
1 1011 0000
Hex
0 FAh
0 32h
0 03h
0 00h
1 FFh
1 CEh
1 B0h
+125C
+25C
+1.5C
+0C
0.5C
25C
40C
In the extended mode temperature Register data can also be
represented by a 12-bit two’s complement digital word with
an LSB of 0.0625C:
Temperature
Digital Output
Binary
0111 1100 0000
0001 1001 0000
0000 0001 0000
0000 0000 0001
0000 0000 0000
1111 1111 1111
1111 1111 0000
1110 0111 0000
1101 1000 0000
Hex
7 D0h
1 90h
0 10h
0 01h
0 00h
F FFh
F F0h
E 70h
D 80h
+125C
+25C
+1.0C
+0.0625C
0C
0.0625C
1.0C
25C
40C
T
Offset temperature data is represented by a 3-bit word
with an LSB (Least Significant Bit) equal to 1C.
DS100072-24
(Non-Linear Scale for Clarity)
FIGURE 9. 9-bit Temperature-to-Digital Transfer
Function
DS100072-27
(Non-Linear Scale for Clarity)
FIGURE 10. 12-bit Temperature-to-Digital Transfer
Function
L
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參數(shù)描述
LM81CIMT-3/NOPB 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
LM81CIMT-31 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Serial Interface ACPI-Compatible Microprocessor System
LM81CIMTX3 制造商:Texas Instruments 功能描述:
LM81CIMTX-3 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
LM81CIMTX-3/NOPB 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
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