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參數(shù)資料
| 型號： | ADT7310TRZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 16/24頁 |
| 文件大?。?/td> | 393K |
| 描述： | IC TEMP SENSOR 16BIT SPI 8SOIC |
| 標準包裝： | 98 |
| 功能： | 溫度監(jiān)控系統(tǒng)（傳感器） |
| 傳感器類型： | 內部 |
| 感應溫度： | -55°C ~ 150°C |
| 精確度： | ±0.5°C |
| 拓撲： | ADC（三角積分型），振蕩器，寄存器庫 |
| 輸出類型： | SPI? |
| 輸出警報： | 是 |
| 輸出風扇： | 無 |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 工作溫度： | -55°C ~ 150°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 8-SO |
| 包裝： | 管件 |
| 產品目錄頁面： | 798 (CN2011-ZH PDF) |
ADT7310
Data Sheet
Rev. A | Page 16 of 24
TEMPERATURE VALUE REGISTER
The temperature value register stores the temperature measured
by the internal temperature sensor. The temperature is stored as
a 16-bit twos complement format. The temperature is read back
from the temperature value register (Register Address 0x02) as a
16-bit value.
Bit 2, Bit 1, and Bit 0 are event alarm flags for T
CRIT
, T
HIGH
, and
TLOW. When the ADC is configured to convert the temperature
to a 16-bit digital value, Bit 2, Bit 1, and Bit 0 are no longer used
as flag bits and are, instead, used as the LSB bits for the extended
digital value.
ID REGISTER
This 8-bit read-only register stores the manufacturer ID in Bit 7
to Bit 3 and the silicon revision in Bit 2 to Bit 0.
T
CRIT
SETPOINT REGISTER
The 16-bit TCRIT setpoint register (Register Address 0x04)
stores the critical overtemperature limit value. A critical
overtemperature event occurs when the temperature value
stored in the temperature value register exceeds the value
stored in this register. The CT pin is activated if a critical
overtemperature event occurs. The temperature is stored in
twos complement format with the MSB being the temperature
sign bit.
The default setting for the TCRIT setpoint is 147癈.
Table 9. Temperature Value Register (Register Address 0x02)
Bit
Default Value
Type
Name
Description
0
0
R
T
LOW
flag/LSB0 Flags a T
LOW
event if the configuration register, Register Address 0x01[7] = 0
(13-bit resolution). When the temperature value is below TLOW,, this bit it set to 1.
Contains the Least Significant Bit 0 of the 15-bit temperature value if the
configuration register, Register Address 0x01[7] = 1 (16-bit resolution).
1
0
R
THIGH flag/LSB1 Flags a THIGH event if the configuration register, Register Address 0x01[7] = 0
(13-bit resolution). When the temperature value is above THIGH, this bit it set to 1.
Contains the Least Significant Bit 1 of the 15-bit temperature value if the
configuration register, Register Address 0x01[7] = 1 (16-bit resolution).
2
0
R
TCRIT flag/LSB2 Flags a TCRIT event if the configuration register, Register Address 0x01[7] = 0
(13-bit resolution). When the temperature value exceeds T
CRIT
, this bit it set to 1.
Contains the Least Significant Bit 2 of the 15-bit temperature value if the
configuration register, Register Address 0x01[7] = 1 (16-bit resolution).
[7:3]
00000
R
Temp
Temperature value in twos complement format.
[14:8]
0000000
R
Temp
Temperature value in twos complement format.
15
0
R
Sign
Sign bit, indicates if the temperature value is negative or positive.
Table 10. ID Register (Register Address 0x03)
Bit
Default Value
Type
Name
Description
[2:0]
XXX
R
Revision ID
Contains the silicon revision identification number.
[7:3]
11000
R
Manufacture ID Contains the manufacturer identification number.
Table 11. TCRIT Setpoint Register (Register Address 0x04)
Bit
Default Value
Type Name
Description
[15:0]
0x4980
R/W
T
CRIT
16-bit critical overtemperature limit, stored in twos complement format.
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