- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄67358 > ADT7476ARQZ-REEL7 (ANALOG DEVICES INC) DIGITAL TEMP SENSOR-SERIAL, 10BIT(s), 2.50Cel, RECTANGULAR, SURFACE MOUNT PDF資料下載
參數(shù)資料
| 型號： | ADT7476ARQZ-REEL7 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | DIGITAL TEMP SENSOR-SERIAL, 10BIT(s), 2.50Cel, RECTANGULAR, SURFACE MOUNT |
| 封裝： | ROHS COMPLIANT, MO-137AE, QSOP-24 |
| 文件頁數(shù)： | 19/72頁 |
| 文件大?。?/td> | 5219K |
| 代理商： | ADT7476ARQZ-REEL7 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁當(dāng)前第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁
ADT7476
Rev. B | Page 26 of 72
For applications in which the monitoring cycle time is important,
it can be calculated easily.
The total number of channels measured is
Four dedicated supply voltage inputs
One supply voltage (VCC pin)
One local temperature
Two remote temperatures
As mentioned previously, the ADC performs round-robin
conversions and takes 11 ms for each voltage measurement,
12 ms for a local temperature reading, and 39 ms for each
remote temperature reading. The total monitoring cycle time
for averaged voltage and temperature monitoring is, therefore,
nominally
(5 × 11) + 12 + (2 × 39) = 145 ms
Fan TACH measurements are made in parallel and are not
synchronized with the analog measurements in any way.
STATUS REGISTERS
The results of limit comparisons are stored in Interrupt Status
Register 1 and Interrupt Status Register 2. The status register bit
for each channel reflects the status of the last measurement and
limit comparison on that channel. If a measurement is within
limits, the corres-ponding status register bit is cleared to 0. If
the measurement is out-of-limits, the corresponding status
register bit is set to 1.
The state of the various measurement channels can be polled by
reading the status registers over the serial bus. In Bit 7 (OOL) of
Interrupt Status Register 1 (0x41), 1 means that an out-of-limit
event has been flagged in Interrupt Status Register 2. This also
means that the user needs to read Interrupt Status Register 2.
Alternatively, Pin 10 or Pin 14 can be configured as an SMBALERT
output. This hard interrupt automatically notifies the system
supervisor of an out-of-limit condition. Reading the status
registers clears the appropriate status bit as long as the error
condition that caused the interrupt has cleared. Status register
bits are sticky. Whenever a status bit is set, indicating an out-of-
limit condition, it remains set even if the event that caused it
has gone away (until read).
The only way to clear the status bit is to read the status register
after the event has gone. Interrupt mask registers (Register 0x74
and Register 0x75) allow individual interrupt sources to be masked
from causing an SMBALERT. However, if one of these masked
interrupt sources goes out-of-limit, its associated status bit is set
in the interrupt status registers.
Interrupt Status Register 1 (0x41)
Bit 7 (OOL) = 1, denotes that a bit in Status Register 2 is set and
Status Register 2 should be read.
Bit 6 (R2T) = 1, Remote 2 temperature high or low limit has
been exceeded.
Bit 5 (LT) = 1, Local temperature high or low limit has been
exceeded.
Bit 4 (R1T) = 1, Remote 1 temperature high or low limit has
been exceeded.
Bit 3 (5 V) = 1, 5 V high or low limit has been exceeded.
Bit 2 (VCC) = 1, VCC high or low limit has been exceeded.
Bit 1 (VCCP) = 1, VCCP high or low limit has been exceeded.
Bit 0 (2.5 V) = 1, 2.5 V high or low limit has been exceeded. If
the 2.5 V input is configured as THERM, this bit represents the
status of THERM.
Interrupt Status Register 2 (0x42)
Bit 7 (D2 FAULT) = 1, indicates an open or short on D2+/D2–
inputs.
Bit 6 (D1 FAULT) = 1, indicates an open or short on D1+/D1–
inputs.
Bit 5 (F4P) = 1, indicates that Fan 4 has dropped below
minimum speed. Alternatively, indicates that the THERM limit
has been exceeded, if the THERM function is used. Alternatively,
indicates the status of GPIO6.
Bit 4 (FAN3) = 1, indicates that Fan 3 has dropped below
minimum speed.
Bit 3 (FAN2) = 1, indicates that Fan 2 has dropped below
minimum speed.
Bit 2 (FAN1) = 1, indicates that Fan 1 has dropped below
minimum speed.
Bit 1 (OVT) = 1, indicates that a THERM overtemperature limit
has been exceeded.
Bit 0 (12 V/VC) = 1, indicates that a 12 V high or low limit has
been exceeded. If the VID code change function is used, this bit
indicates a change in VID code on the VID0 to VID5 inputs.
SMBALERT Interrupt Behavior
The ADT7476 can be polled for status, or an SMBALERT
interrupt can be generated for out-of-limit conditions. It is
important to note how the SMBALERT output and status bits
behave when writing interrupt handler software.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADT7482ARMZ-RL | DIGITAL TEMP SENSOR-SERIAL, 11BIT(s), 2.5Cel, SQUARE, SURFACE MOUNT |
| ADT7482ARMZ-U2 | DIGITAL TEMP SENSOR-SERIAL, 11BIT(s), 2.5Cel, SQUARE, SURFACE MOUNT |
| ADT7485ARMZ-REEL | DIGITAL TEMP SENSOR-SERIAL, 16BIT(s), 1Cel, SQUARE, SURFACE MOUNT |
| ADT7485ARMZ | DIGITAL TEMP SENSOR-SERIAL, 16BIT(s), 1Cel, SQUARE, SURFACE MOUNT |
| ADT7485ARMZ-REEL7 | DIGITAL TEMP SENSOR-SERIAL, 16BIT(s), 1Cel, SQUARE, SURFACE MOUNT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADT7476EBZEVB | 功能描述:BOARD EVALUATION FOR ADT7476 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:dBCool® 標(biāo)準(zhǔn)包裝:1 系列:- 傳感器類型:CMOS 成像，彩色（RGB） 傳感范圍:WVGA 接口:I²C 靈敏度:60 fps 電源電壓:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相關(guān)產(chǎn)品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP |
| ADT7481 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Dual Channel Temperature Sensor and Over Temperature Alarm |
| ADT7481ARMZ | 功能描述:板上安裝溫度傳感器 2 CH TEMP SNSR/ALARM 2 WIRE SMBUS INTRFCE 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 |
| ADT7481ARMZ-001 | 功能描述:板上安裝溫度傳感器 2 CH TEMP SNSR/ALARM 2 WIRE SMBUS INTRFCE 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 |
| ADT7481ARMZ-1 | 功能描述:IC SENSOR TEMP 2CH ALARM 10MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱管理 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 功能:溫度監(jiān)控系統(tǒng)（傳感器） 傳感器類型:內(nèi)部和外部 感應(yīng)溫度:-40°C ~ 125°C，外部傳感器 精確度:±2.5°C 本地（最大值），±5°C 遠(yuǎn)程（最大值） 拓?fù)?ADC，比較器，寄存器庫 輸出類型:2 線 SMBus? 輸出警報:無 輸出風(fēng)扇:無 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-8 供應(yīng)商設(shè)備封裝:SOT-23-8 包裝:Digi-Reel® 其它名稱:296-22675-6 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。