參數(shù)資料
型號: SE97BTP,547
廠商: NXP Semiconductors
文件頁數(shù): 28/53頁
文件大?。?/td> 386K
描述: IC TEMP SENSOR DIMM 8HWSON
產(chǎn)品培訓模塊: 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:
輸出風扇:
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
供應商設備封裝: 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
SE97B_1
?NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 01  27 January 2010
28 of 53
NXP Semiconductors
SE97B
DDR memory module temp sensor with integrated SPD
8.4   Temperature format
The temperature data from the temperature read back register is an 11-bit 2s complement
word with the least significant bit (LSB) equal to 0.125 癈 (resolution).
" A value of 019Ch will represent 25.75 ?/SPAN>C
"  A value of 07C0h will represent 124 ?/SPAN>C
"  A value of 1E64h will represent 25.75 ?/SPAN>C.
The unused LSB (bit 0) is set to 0. Bit 11 will have a resolution of 128 癈.
The upper 3 bits of the temperature register indicate Trip Status based on the current
temperature, and are not affected by the status of the EVENT
 output.
One of the ways to calculate the Temperature, Upper Boundary, Lower Boundary, and
Critical Alarm Trip values in 癈 from the 12-bit Temp data is:
"  If the SIGN bit = 0, then the temperature is positive, 
(癈) = +(Temp data) ?0.125 癈 (0.250 癈 for alarm registers).
"  If the SIGN bit = 1, then the temperature is negative, 
(癈) = (2s complement of Temp data) ?0.125 癈 (0.250 癈 for alarm registers).
Table 15
 lists the examples of the content of the temperature data register for positive and
negative temperature for two scenarios of status bits: status bits = 000b and
status bits = 111b.
 
Table 15.   Degree Celsius and Temperature Data register
Temperature
Content of Temperature Data register
Status bits = 000b
Status bits = 111b
Binary
Hex
Binary
Hex
+125 癈
000 0 01111101 000 0
07D0h
111 0 01111101 000 0
E7D0h
+25 癈
000 0 00011001 000 0
0190h
111 0 00011001 000 0
E190h
+1 癈
000 0 00000001 000 0
0010h
111 0 00000001 000 0
E010h
+0.25 癈
000 0 00000000 010 0
0004h
111 0 00000000 010 0
E004h
+0.125 癈
000 0 00000000 001 0
0002h
111 0 00000000 001 0
E002h
0 癈
000 0 00000000 000 0
0000h
111 0 00000000 000 0
E000h
0.125 癈
000 1 11111111 111 0
1FFEh
111 1 11111111 111 0
FFFEh
0.25 癈
000 1 11111111 110 0
1FFCh
111 1 11111111 110 0
FFFCh
1 癈
000 1 11111111 000 0
1FF0h
111 1 11111111 000 0
FFF0h
20 癈
000 1 11110100 000 0
1F40h
111 1 11110100 000 0
FF40h
25 癈
000 1 11100111 000 0
1E70h
111 1 11100111 000 0
FE70h
55 癈
000 1 11001001 000 0
1C90h
111 1 11001001 000 0
FC90h
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