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| 型號： | SE97BTP,547 |
| 廠商： | NXP Semiconductors |
| 文件頁數(shù)： | 17/53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 |
| 標準包裝： | 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） |
| 拓撲： | 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： | 標準包裝 |
| 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
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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