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EMC1182-1-AIA-TR 参数 Datasheet PDF下载

EMC1182-1-AIA-TR图片预览
型号: EMC1182-1-AIA-TR
PDF下载: 下载PDF文件 查看货源
内容描述: 双通道1C温度传感器,带有beta补偿和1.8V的SMBus通信 [Dual Channel 1C Temperature Sensor with Beta Compensation and 1.8V SMBus Communications]
分类和应用: 传感器温度传感器通信
文件页数/大小: 48 页 / 565 K
品牌: SMSC [ SMSC CORPORATION ]
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Dual Channel 1°C Temperature Sensor with Beta Compensation and 1.8V SMBus Communications  
Datasheet  
Table 6.7 Temperature Limit Registers (continued)  
ADDR.  
R/W  
REGISTER  
B7  
B6  
B5  
B4  
B3  
B2  
B1  
B0  
DEFAULT  
08h  
External  
Diode Low  
Limit High  
Byte  
00h  
(0°C)  
R/W  
128  
64  
32  
16  
8
4
2
1
0Eh  
External  
Diode Low  
Limit Low  
Byte  
14h  
R/W  
0.5  
0.25 0.125  
-
-
-
-
-
00h  
The device contains both high and low limits for all temperature channels. If the measured temperature  
exceeds the high limit, then the corresponding status bit is set and the ALERT / THERM2 pin is  
asserted. Likewise, if the measured temperature is less than or equal to the low limit, the  
corresponding status bit is set and the ALERT / THERM2 pin is asserted.  
The data format for the limits must match the selected data format for the temperature so that if the  
extended temperature range is used, the limits must be programmed in the extended data format.  
The limit registers with multiple addresses are fully accessible at either address.  
When the device is in Standby mode, updating the limit registers will have no effect until the next  
conversion cycle occurs. This can be initiated via a write to the One Shot Register (see Section 6.8,  
"One Shot Register 0Fh") or by clearing the RUN / STOP bit (see Section 6.4, "Configuration Register  
03h / 09h").  
6.7  
Scratchpad Registers 11h and 12h  
Table 6.8 Scratchpad Register  
ADDR  
R/W  
REGISTER  
B7  
B6  
B5  
B4  
B3  
B2  
B1  
B0  
DEFAULT  
11h  
12h  
R/W  
R/W  
Scratchpad  
Scratchpad  
7
7
6
6
5
5
4
4
3
3
2
2
1
1
0
0
00h  
00h  
The Scratchpad Registers are Read / Write registers that are used for place holders to be software  
compatible with legacy programs. Reading from the registers will return what is written to them.  
6.8  
One Shot Register 0Fh  
The One Shot Register is used to initiate a one shot command. Writing to the one shot register when  
the device is in Standby mode and BUSY bit (in Status Register) is ‘0’, will immediately cause the ADC  
to update all temperature measurements. Writing to the One Shot Register while the device is in Active  
mode will have no effect.  
SMSC EMC1182  
31  
Revision 1.0 (07-11-13)  
DATASHEET