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參數(shù)資料
| 型號： | LM99CIMMX |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | 【1C Accurate, High Temperature, Remote Diode Temperature Sensor with Two-Wire Interface |
| 中文描述： | 【集成電路準確，高溫，遠程二極管溫度傳感器，兩線接口 |
| 文件頁數(shù)： | 11/20頁 |
| 文件大小： | 349K |
| 代理商： | LM99CIMMX |
1.0 Functional Description
(Continued)
1.9 COMMUNICATING WITH THE LM99
The data registers in the LM99 are selected by the Com-
mand Register. At power-up the Command Register is set to
“00”, the location for the Read Local Temperature Register.
The Command Register latches the last location it was set
to. Each data register in the LM99 falls into one of four types
of user accessibility:
1.
Read only
2.
Write only
3.
Read/Write same address
4.
Read/Write different address
A
Write
to the LM99 will always include the address byte and
the command byte. A write to any register requires one data
byte.
Reading
the LM99 can take place either of two ways:
1.
If the location latched in the Command Register is cor-
rect (most of the time it is expected that the Command
Register will point to one of the Read Temperature Reg-
isters because that will be the data most frequently read
from the LM99), then the read can simply consist of an
address byte, followed by retrieving the data byte.
If the Command Register needs to be set, then an
address byte, command byte, repeat start, and another
address byte will accomplish a read.
The data byte has the most significant bit first. At the end of
a read, the LM99 can accept either Acknowledge or No
Acknowledge from the Master (No Acknowledge is typically
used as a signal for the slave that the Master has read its
last byte). It takes the LM99 31.25 ms to measure the
temperature of the remote diode and internal diode. When
retrieving all 10 bits from a previous remote diode tempera-
ture measurement, the master must insure that all 10 bits are
from the same temperature conversion. This may be
achieved by using one-shot mode or by setting the conver-
sion rate and monitoring the busy bit such that no conversion
occurs in between reading the MSB and LSB of the last
temperature conversion.
2.
L
www.national.com
11
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|---|---|
| LM99CIMMX/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(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: 安裝風格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| LM99EVAL | 功能描述:BOARD EVALUATION LM99 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 傳感器 系列:PowerWise® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- |
| LM99EVAL/NOPB | 功能描述:溫度傳感器開發(fā)工具 LM99 EVAL BOARD RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:Temperature Sensors and Control ICs 工具用于評估:MSP430G2553 接口類型:USB 工作電源電壓: 工作電源電流: |
| LM9V381 | 制造商:SHARP 制造商全稱:Sharp Electrionic Components 功能描述:Color STN-LCD Module |
| LMA100.A.BI.001 | 功能描述:829MHz, 1.9GHz, 2.6GHz Panel RF Antenna 698MHz ~ 960MHz, 1.71GHz ~ 2.17GHz, 2.5GHz ~ 2.7GHz 5.1dBi Connector, SMA Male Base Mount 制造商:taoglas limited 系列:- 包裝:散裝 零件狀態(tài):有效 頻率組:寬帶 頻率（中心/帶）:829MHz，1.9GHz，2.6GHz 頻率范圍:698MHz ~ 960MHz，1.71GHz ~ 2.17GHz，2.5GHz ~ 2.7GHz 天線類型:面板 頻帶數(shù):3 VSWR:- 回波損耗:- 增益:5.1dBi 功率 - 最大值:- 特性:- 端接:連接器，SMA 公型 侵入防護:IP67 安裝類型:基座 高度（最大值）:1.437"（36.50mm） 應(yīng)用:- 標準包裝:1 |
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