參數(shù)資料
型號(hào): STCN75DS2E
廠商: 意法半導(dǎo)體
元件分類: 溫度/濕度傳感器
英文描述: Digital temperature sensor and thermal watchdog
中文描述: 數(shù)字溫度傳感器和熱看門狗
文件頁數(shù): 18/35頁
文件大?。?/td> 194K
代理商: STCN75DS2E
Functional description
STCN75
18/35
3.1.5
Hysteresis temperature register (T
HYS
)
T
HYS
register is a two-byte (16-bit) READ/WRITE register that stores the user-
programmable lower trip-point temperature for the thermal alarm in two’s complement
format (see
Table 8
). This register defaults to 75°C at power-up (i.e., 0100 1011 0000
0000).
The format of this register is the same as that of the Temperature register. The MSB
position contains the sign bit for the digital temperature and Bit14 contains the temperature
MSB.
Table 8.
3.2
Power-up default conditions
The STCN75 always powers up in the following default states:
Thermostat mode = comparator mode
Polarity = active-low
Fault tolerance = 1 fault (i.e., relevant bits set to '0' in the configuration register)
T
OS
= 80°C
T
HYS
= 75°C
Register pointer = 00 (temperature register)
Note:
After power-up these conditions can be reprogrammed via the serial interface.
T
OS
and T
HYS
register format
(1)
HS byte
1.
These are comparable formats to the DS75 and LM75.
Bytes
LS byte
Bits
MSB
TMSB
TLSB
LSB
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
STCN75
S
TMSB
TD TD TD TD TD TD
9-bit
TLSB
0
0
0
0
0
0
0
Keys: S = two’s complement sign bit
TMSB = temperature MSB
TLSB = temperature LSB
TD = temperature Data
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