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| 型号： | SE97BTP,547 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 7/53页 |
| 文件大小： | 386K |
| 描述： | IC TEMP SENSOR DIMM 8HWSON |
| 产品培训模块： | I²C Bus Fundamentals |
| 特色产品： | NXP - I2C Interface |
| 标准包装： | 1 |
| 功能： | 温度监控系统（传感器），DIMM DDR 内存 |
| 传感器类型： | 内部 |
| 感应温度： | -40°C ~ 125°C |
| 精确度： | ±3°C（最小值） |
| 拓扑： | ADC（三角积分型），比较器，寄存器库 |
| 输出类型： | I²C?/SMBus? |
| 输出警报： | 是 |
| 输出风扇： | 是 |
| 电源电压： | 3 V ~ 3.6 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WFDFN 裸露焊盘 |
| 供应商设备封装： | 8-WSON |
| 包装： | 标准包装 |
| 产品目录页面： | 847 (CN2011-ZH PDF) |
| 其它名称： | 568-5055-6 |
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SE97B_1
?NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 01 27 January 2010
7 of 53
NXP Semiconductors
SE97B
DDR memory module temp sensor with integrated SPD
7.3 EVENT
output condition
The EVENT
output indicates conditions such as the temperature crossing a predefined
boundary. The EVENT
modes are very configurable and selected using the configuration
register (CONFIG). The interrupt mode or comparator mode is selected using CONFIG[0],
using either TCRIT/UPPER/LOWER or TCRIT only temperature bands (CONFIG[2]) as
modified by hysteresis (CONFIG[10:9]). The UPPER/LOWER (CONFIG[6]) and TCRIT
(CONFIG[7]) bands can be locked. Figure 4
shows an example of the measured
temperature versus time, with the corresponding behavior of the EVENT
output in each of
these modes.
Upon device power-up, the default condition for the EVENT
output is high-impedance to
prevent spurious or unwanted alarms, but can be later enabled (CONFIG[3]). CONFIG[3]
does not have to be cleared (e.g., set back to (0)) before changing CONFIG[2] or
CONFIG[0]. EVENT
output polarity can be set to active HIGH or active LOW
(CONFIG[1]). EVENT
status can be read (CONFIG[4]) and cleared (CONFIG[5]).
If the EVENT
output is enabled (CONFIG[3] = 1) and the part is switched between
Interrupt mode and Comparator mode or vice versa, the EVENT
output may glitch during
the change.
If the device enters Shutdown mode (CONFIG[8]) with asserted EVENT
output, the output
either de-asserts (default) or remains asserted (frozen) depending on SMBUS[4].
7.3.1 EVENT
pin output voltage levels and resistor sizing
The EVENT
open-drain output is typically pulled up to a voltage level from 0.9 V to 3.6 V
with an external pull-up resistor, but there is no real lower limit on the pull-up voltage for
the EVENT
pin since it is simply an open-drain NMOS pull-down output. It could be pulled
up to 0.1 V and would not affect the output. From the system perspective, there will be a
practical limit. That limit will be the voltage necessary for the device monitoring the
interrupt pin to detect a HIGH on its input. A possible practical limit for a CMOS input
would be 0.4 V. Another thing to consider is the value of the pull-up resistor. When a low
supply voltage is applied to the drain (through the pull-up resistor) it is important to use a
higher value pull-up resistor, to allow a larger maximum signal swing on the EVENT
pin.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SE97PW | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:DDR memory module temp sensor with integrated SPD, 3.3 V |
| SE97PW,118 | 功能描述:板上安装温度传感器 I2C LOCAL +/- 2OC RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| SE97PW-T | 功能描述:板上安装温度传感器 I2C LOCAL +/- 2OC TS +SPD DIMM RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| SE97TK | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:DDR memory module temp sensor with integrated SPD, 3.3 V |
| SE97TK,118 | 功能描述:板上安装温度传感器 I2C LOCAL +/- 2OC RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
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