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| 型號： | LM80CIMT-5 |
| 英文描述： | Single-Ended Data Acquisition System |
| 中文描述： | 單端數(shù)據(jù)采集系統(tǒng) |
| 文件頁數(shù)： | 11/29頁 |
| 文件大?。?/td> | 409K |
| 代理商： | LM80CIMT-5 |
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Functional Description
(Continued)
2.2 Serial Bus Interface
The Serial Bus control lines consists of the SDA(serial data),
SCL (serial clock) and A0-A1 (address) pins. The LM80 can
only operate as a slave. The SCL line only controls the serial
interface, all other clock functions within LM80 such as the
ADC and fan counters are done with a separate asynchro-
nous internal clock.
When using the Serial Bus Interface a write will always
consist of the LM80 Serial Bus Interface Address byte, fol-
lowed by the Internal Address Register byte, then the data
byte. There are two cases for a read:
1.
If the Internal Address Register is known to be at the
desired Address, simply read the LM80 with the Serial
Bus Interface Address byte, followed by the data byte
read from the LM80.
2.
If the Internal Address Register value is unknown, write
to the LM80 with the Serial Bus Interface Address byte,
followed by the Internal Address Register byte. Then
restart the Serial Communication with a Read consisting
of the Serial Bus Interface Address byte, followed by the
data byte read from the LM80.
The default power on Serial Bus address for the LM80 is:
0101(A2)(A1)(A0) binary, where A0-A2 reflect the state of
the pins defined by the same names.
All of these communications are depicted in the Serial Bus
Interface Timing Diagrams as shown in Figure 5
DS100040-8
(a) Serial Bus Write to the Internal Address Register followed by the Data Byte
DS100040-9
(b) Serial Bus Write to the Internal Address Register Only
DS100040-10
(c) Serial Bus Read from a Register with the Internal Address Register Preset to Desired Location
FIGURE 5. Serial Bus Timing
L
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM80CIMT-5/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 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| LM80CIMT-5/NOPB | 制造商:Texas Instruments 功能描述:Temperature Sensor IC |
| LM80CIMT-51 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Serial Interface ACPI-Compatible Microprocessor System Hardware Monitor |
| LM80CIMTX3 | 制造商:Texas Instruments 功能描述: |
| LM80CIMTX-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 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
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