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| 型号： | SE97BTP,547 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 17/53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
17 of 53
NXP Semiconductors
SE97B
DDR memory module temp sensor with integrated SPD
7.10.1.3 Acknowledge polling
Acknowledge polling can be used to determine if the SE97B is busy writing or is ready to
accept commands. Polling is implemented by sending a Selective Read command
(described in Section 7.10.3
Read operations
) to the device. The SE97B will not
acknowledge the slave address as long as internal write is in progress.
7.10.2 Memory Protection
The lower half (the first 128 bytes) of the memory can be write protected by special
EEPROM commands without an external control pin. The SE97B features three types of
memory write protection instructions, and three respective read Protection instructions.
The level of write-protection (set or clear) that has been defined using these instructions
remained defined even after power cycle.
The memory protection commands are:
" Permanent Write Protection (PWP)
" Reversible Write Protection (RWP)
" Clear Write Protection (CWP)
" Read Permanent Write Protection (RPWP)
" Read Reversible Write Protection (RRWP)
" Read Clear Write Protection (RCWP)
Table 6
is the summary for normal and memory protection instructions.
[1] The most significant bit, bit 7, is sent first.
[2] V
I(ov)
ranges from 7.0 V to 10 V.
[3] A0, A1, and A2 are compared against the respective external pins on the SE97B. Do not apply V
I(ov)
to the A0 pin during
Normal EEPROM read/write, Permanent Write Protection (PWP) and Read PWP.
This special EEPROM command consists of a unique 4-bit fixed address (0110b) and the
voltage level applied on the 3-bit hardware address. Normally, to address the memory
array, the 4-bit fixed address is 1010b. To access the memory protection settings, the
4-bit fixed address is 0110b. Figure 13
and Figure 14
show the write and read protection
sequence, respectively.
Table 6.
EEPROM commands summary
Command
Fixed address
Hardware selectable
address
R/W
Bit 7
[1]
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Normal EEPROM read/write
1
0
1
0
A2
A1
A0
R/W
Reversible Write Protection (RWP)
0
1
1
0
V
SS
V
SS
V
I(ov)
[2]
0
Clear Reversible Write Protection (CRWP)
0
1
1
0
V
SS
V
DD
V
I(ov)
[2]
0
Permanent Write Protection (PWP)
[3]
0
1
1
0
A2
A1
A0
0
Read RWP
0
1
1
0
V
SS
V
SS
V
I(ov)
[2]
1
Read CRWP
0
1
1
0
V
SS
V
DD
V
I(ov)
[2]
1
Read PWP
0
1
1
0
A2
A1
A0
1
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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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