參數資料
型號: LM87
廠商: National Semiconductor Corporation
英文描述: Serial Interface System Hardware Monitor with Remote Diode Temperature Sensing
中文描述: 串行接口系統硬件監(jiān)控與遠程二極管溫度傳感器
文件頁數: 11/32頁
文件大?。?/td> 470K
代理商: LM87
Functional Description
(Continued)
2.1 Internal Registers of the LM87
TABLE 1. The internal registers and their corresponding internal LM87 addresses are as follows:
Register
LM87 Internal Hex
Address
13h
Power on
Value
0100 0110
Notes
Internal Temp. Hardware
High Limit
External Temp. Hardware
High Limit
Test Register
Channel Mode Register
Internal Temp. Hardware
High Limit
External Temp. Hardware
High Limit
Value RAM DAC Data
Register
Value RAM
70 C Default - User adjustable. Lockable by setting bit
1 of register 4Ah.
85 C Default - User adjustable. Lockable by setting bit
2 of register 4Ah.
14h
0101 0101
15h
16h
17h
0000 0000
0000 0000
0100 0110
70 C Default - User adjustable.
18h
0101 0101
85 C Default - User adjustable.
19h
1111 1111
Defaults to full scale DAC setting.
1Ah-3Fh
(See Section 13.18) Contains: monitoring results
(temperature, voltages, fan counts), WATCHDOG
limits, and Company/Stepping IDs
This designates the National Semiconductor LM87.
Revisions of this device will start with 1 and increment
by one.
Company ID
Revision
3Eh
3Fh
0000 0010
0000 0110
Configuration Register 1
Interrupt Status Register 1
Interrupt Status Register 2
Interrupt Mask Register 1
Interrupt Mask Register 2
CI Clear Register
VID0-3/Fan Divisor Register
40h
41h
42h
43h
44h
46h
47h
0000 1000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0101 XXXX
The upper four bits set the divisor for Fan Counters 1
and 2. The lower four bits reflect the state of the
VID0-VID3 inputs.
The lower bit reflects the state of VID4 input.
VID4 Register
Configuration Register 2
Interrupt Status Register 1
Mirror
Interrupt Status Register 2
Mirror
SMBALERT# Enable
49h
4Ah
4Ch
1000 000X
0000 0000
0000 0000
4Dh
0000 0000
80h
0010 0000
L
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相關代理商/技術參數
參數描述
LM87CIMT 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: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor
LM87CIMT 制造商:Texas Instruments 功能描述:HDW MON, 2 REMOTE TEMP SENS, SMD 制造商:Texas Instruments 功能描述:HDW MON, 2 REMOTE TEMP SENS, SMD; IC Output Type:Voltage; Sensing Accuracy Range: 3C; Sensing Temperature Min:-40C; Sensing Temperature Max:+125C; Supply Voltage Min:2.8V; Supply Voltage Max:3.8V; Sensor Case Style:TSSOP; No. of ;RoHS Compliant: Yes
LM87CIMT/NOPB 功能描述:板上安裝溫度傳感器 Hdw Mon & 2 Remote Temp Sens RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor
LM87CIMTX 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: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor
LM87CIMTX/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: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor