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參數(shù)資料
| 型號： | SE98ATP,547 |
| 廠商： | NXP Semiconductors |
| 文件頁數(shù)： | 10/43頁 |
| 文件大?。?/td> | 849K |
| 描述： | IC TEMP SENSOR DDR 8-HWSON |
| 產(chǎn)品培訓(xùn)模塊： | I²C Bus Fundamentals |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 功能： | 溫度監(jiān)控系統(tǒng)（傳感器） |
| 傳感器類型： | 內(nèi)部 |
| 感應(yīng)溫度： | -40°C ~ 125°C |
| 精確度： | ±4°C（最小值） |
| 拓?fù)洌?/td> | ADC（三角積分型），寄存器庫 |
| 輸出類型： | I²C?/SMBus? |
| 輸出警報(bào)： | 是 |
| 輸出風(fēng)扇： | 是 |
| 電源電壓： | 1.7 V ~ 3.6 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-WFDFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 8-WSON |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 產(chǎn)品目錄頁面： | 847 (CN2011-ZH PDF) |
| 其它名稱： | 568-4731-6 |
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SE98A_4
?NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 04 25 November 2009
10 of 43
NXP Semiconductors
SE98A
DDR memory module temp sensor, 1.7 V to 3.6 V
In interrupt mode, EVENT
asserts when the temperature crosses the alarm upper
boundary. If the EVENT
output is cleared and the temperature continues to increase until
it crosses the critical temperature threshold, EVENT
asserts again. Because the
temperature is greater than the critical temperature threshold, a Clear EVENT
command
does not clear the EVENT
output. Once the temperature drops below the critical
temperature, EVENT
de-asserts immediately.
" Advisory notification:
NXP device: If the EVENT
output is not cleared before the temperature goes
above the critical temperature threshold EVENT
de-asserts immediately when
temperature drops below the critical temperature.
Competitor devices: If the EVENT
output is not cleared before or when the
temperature is in the critical temperature threshold, EVENT
will remain asserted
after the temperature drops below the critical temperature until a Clear EVENT
command.
Work-around: Always clear the EVENT
output before temperature exceeds the
critical temperature.
SE98B will keep EVENT
asserted after the temperature drops below the critical
temperature until a Clear EVENT
command de-asserts EVENT
.
7.4 Conversion rate
The conversion time is the amount of time required for the ADC to complete a
temperature measurement for the local temperature sensor. The conversion rate is the
inverse of the conversion period which describes the number of cycles the temperature
measurement completes in one secondthe faster the conversion rate, the faster the
temperature reading is updated. The SE98As conversion rate is at least 8 Hz or 125 ms.
7.4.1 What temperature is read when conversion is in progress
The SE98A has been designed to ensure a valid temperature is always available. When a
read to the temperature register is initiated through the SMBus, the device checks to see if
the temperature conversion process (Analog-to-Digital conversion) is complete and a new
temperature is available:
" If the temperature conversion process is complete, then the new temperature value is
sent out on the SMBus.
" If the temperature conversion process in not complete, then the previous temperature
value is sent out on the SMBus.
It is possible that while the SMBus Master is reading the temperature register, a new
temperature conversion completes. However, this will not affect the data (MSB or LSB)
that is being shifted out. On the next read of the temperature register the new temperature
value will be shifted out.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SE98PW | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:SO-DIMM SMBus/I2C-bus temperature sensor |
| SE98PW,118 | 功能描述:板上安裝溫度傳感器 I2C LOCAL +/- 2OC 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 |
| SE98PW-T | 功能描述:板上安裝溫度傳感器 I2C LOCAL +/- 2OC TS DIMM 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 |
| SE98TK | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DDR memory module temp sensor, 3.3 V |
| SE98TK,118 | 功能描述:板上安裝溫度傳感器 I2C LOCAL +/- 2OC 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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