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參數(shù)資料
| 型號： | LM75BD,112 |
| 廠商： | NXP Semiconductors |
| 文件頁數(shù)： | 8/37頁 |
| 文件大?。?/td> | 520K |
| 描述： | IC TEMP SENSOR DIGITAL 8-SOIC |
| 特色產(chǎn)品： | Digital Temperature Sensor / Thermal Watchdog |
| 標(biāo)準(zhǔn)包裝： | 100 |
| 功能： | 溫度監(jiān)視系統(tǒng)（傳感器），監(jiān)視器 |
| 傳感器類型： | 內(nèi)部 |
| 感應(yīng)溫度： | -55°C ~ 125°C |
| 精確度： | ±3°C（最小值） |
| 拓?fù)洌?/td> | ADC（三角積分型），比較器，振蕩器，寄存器庫 |
| 輸出類型： | 2 線串行，I²C? |
| 輸出警報： | 無 |
| 輸出風(fēng)扇： | 是 |
| 電源電壓： | 2.8 V ~ 5.5 V |
| 工作溫度： | -55°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SO |
| 包裝： | 管件 |
| 其它名稱： | 935285837112 LM75BD LM75BD-ND |
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LM75B
All information provided in this document is subject to legal disclaimers.
?NXP B.V. 2014. All rights reserved.
Product data sheet
Rev. 5 22 January 2014
8 of 37
NXP Semiconductors
LM75B
Digital temperature sensor and thermal watchdog
7.4.1 Pointer register
The Pointer register contains an 8-bit data byte, of which the two LSB bits represent the
pointer value of the other four registers, and the other 6 MSB bits are equal to 0, as shown
in Table 6
and Table 7
. The Pointer register is not accessible to the user, but is used to
select the data register for write/read operation by including the pointer data byte in the
bus command.
Because the Pointer value is latched into the Pointer register when the bus command
(which includes the pointer byte) is executed, a read from the LM75B may or may not
include the pointer byte in the statement. To read again a register that has been recently
read and the pointer has been preset, the pointer byte does not have to be included. To
read a register that is different from the one that has been recently read, the pointer byte
must be included. However, a write to the LM75B must always include the pointer byte in
the statement. The bus communication protocols are described in Section 7.10
.
At power-up, the Pointer value is equal to 00 and the Temp register is selected; users can
then read the Temp data without specifying the pointer byte.
7.4.2 Configuration register
The Configuration register (Conf) is a write/read register and contains an 8-bit
non-complement data byte that is used to configure the device for different operation
conditions. Table 8
shows the bit assignments of this register.
Table 6.
Pointer register
B7
B6
B5
B4
B3
B2
B[1:0]
0
0
0
0
0
0
pointer value
Table 7.
Pointer value
B1
B0
Selected register
0
0
Temperature register (Temp)
0
1
Configuration register (Conf)
1
0
Hysteresis register (Thyst)
1
1
Overtemperature shutdown register (Tos)
Table 8.
Conf register
Legend: * = default value.
Bit
Symbol
Access
Value
Description
B[7:5]
reserved
R/W
000* reserved for manufacturers use; should be kept as
zeroes for normal operation
B[4:3]
OS_F_QUE[1:0] R/W
OS fault queue programming
00*
queue value = 1
01
queue value = 2
10
queue value = 4
11
queue value = 6
B2
OS_POL
R/W
OS polarity selection
0*
OS active LOW
1
OS active HIGH
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|---|---|
| LM75BDP | 制造商:NXP Semiconductors 功能描述:IC TEMP SENSOR DIGITAL 8-TSSOP 制造商:NXP Semiconductors 功能描述:IC, TEMP SENSOR, DIGITAL, 8-TSSOP |
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| LM75BDP/DG,118 | 功能描述:板上安裝溫度傳感器 DIGITAL TEMP SENSOR AND THERMAL WATCHDOG 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 |
| LM75BDP118 | 制造商:NXP Semiconductors 功能描述:DIGITAL TEMP SENSOR IC 11BIT +/-3C TS |
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