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| 型號： | SE97BTP,547 |
| 廠商： | NXP Semiconductors |
| 文件頁數(shù)： | 12/53頁 |
| 文件大?。?/td> | 386K |
| 描述： | IC TEMP SENSOR DIMM 8HWSON |
| 產(chǎn)品培訓(xùn)模塊： | I²C Bus Fundamentals |
| 特色產(chǎn)品： | NXP - I2C Interface |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 功能： | 溫度監(jiān)控系統(tǒng)（傳感器），DIMM DDR 內(nèi)存 |
| 傳感器類型： | 內(nèi)部 |
| 感應(yīng)溫度： | -40°C ~ 125°C |
| 精確度： | ±3°C（最小值） |
| 拓?fù)洌?/td> | ADC（三角積分型），比較器，寄存器庫 |
| 輸出類型： | I²C?/SMBus? |
| 輸出警報： | 是 |
| 輸出風(fēng)扇： | 是 |
| 電源電壓： | 3 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： | 568-5055-6 |
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SE97B_1
?NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 01 27 January 2010
12 of 53
NXP Semiconductors
SE97B
DDR memory module temp sensor with integrated SPD
Table 5
shows the default values and the example value to be programmed to these
registers.
7.7 SMBus TIMEOUT
The SE97B supports SMBus TIMEOUT feature. If the host holds SCL LOW more than
35 ms, the SE97B would reset its internal state machine to the bus IDLE state to prevent a
system bus hang-up. This feature is turned on by default and release SDA. The SMBus
TIMEOUT can be disabled by writing a 1 to SMBUS[7].
Remark: When SMBus TIMEOUT is enabled, the I
2
C-bus minimum bus speed is limited
by the SMBus TIMEOUT specification limit of 10 kHz.
The SE97B has no SCL driver, so it cannot hold the SCL line LOW.
7.8 SMBus Alert Response Address (ARA)
The SE97B supports SMBus ALERT when it is programmed for the Interrupt mode and
when the EVENT
polarity bit is set to 0. In Comparator mode or when the EVENT
polarity
bit is set to 1, the SMBus ALERT address is not acknowledged. The EVENT
pin can be
ANDed with other EVENT
or interrupt signals from other slave devices to signal their
intention to communicate with the host controller. When the host detects EVENT
or other
interrupt signal LOW, it issues an ARA to which a slave device would respond with its
address. When there are multiple slave devices generating an ALERT the SE97B
performs bus arbitration with the other slaves. If it wins the bus, it responds to the ARA
and then clears the EVENT
pin. This feature is turned off by default and can be enabled
by writing a 0 to SMBUS[0].
Remark: Either in comparator mode or when the SE97B crosses the critical temperature,
the host must also read the EVENT
status bit and provide remedy to the situation by
bringing the temperature to within the alarm window or below the critical temperature if
that bit is set. Otherwise, the EVENT
pin will not get de-asserted.
Table 5.
Registers to be initialized
Register
Default value
Example value
Description
01h
0000h
0209h
Configuration register
" hysteresis = 1.5 ?/SPAN>C
" EVENT
output = Interrupt mode
" EVENT
output is enabled
02h
0000h
0550h
Upper Boundary Alarm Trip register = 85 癈
03h
0000h
1F40h
Lower Boundary Alarm Trip register = 20 癈
04h
0000h
05F0h
Critical Alarm Trip register = 95 癈
22h
21h
21h
SMBus register = no change
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SE97PW | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DDR memory module temp sensor with integrated SPD, 3.3 V |
| SE97PW,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 |
| SE97PW-T | 功能描述:板上安裝溫度傳感器 I2C LOCAL +/- 2OC TS +SPD 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 |
| SE97TK | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DDR memory module temp sensor with integrated SPD, 3.3 V |
| SE97TK,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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