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| 型号： | ADT7310TRZ-REEL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 16/24页 |
| 文件大小： | 393K |
| 描述： | IC TEMP SENS 16B DGTL SPI 8SOIC |
| 标准包装： | 2,500 |
| 功能： | 温度监控系统（传感器） |
| 传感器类型： | 内部 |
| 感应温度： | -55°C ~ 150°C |
| 精确度： | ±0.5°C |
| 拓扑： | ADC（三角积分型），振荡器，寄存器库 |
| 输出类型： | SPI? |
| 输出警报： | 是 |
| 输出风扇： | 无 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -55°C ~ 150°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SO |
| 包装： | 带卷 (TR) |
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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