參數(shù)資料
型號: DS1775
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 溫度/濕度傳感器
英文描述: SOT23 Digital Thermometer and Thermostat(SOT23數(shù)字溫度計(jì)和恒溫控制器)
中文描述: DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), RECTANGULAR, SURFACE MOUNT
封裝: SOT-23, 5 PIN
文件頁數(shù): 5/13頁
文件大?。?/td> 307K
代理商: DS1775
DS1775
5 of 13
O.S. OUTPUT TRANSFER FUNCTION
Figure 2
Regardless of the mode chosen, the O.S. output is open–drain and the active state is set in the
configuration register. The power–up default is active low. Refer to the “OPERATION–Programming”
section for instructions in adjusting the thermostat setpoints, thermostat mode, and O.S. active state.
OPERATION–Programming
There are three areas of interest in programming the DS1775: the configuration register, the T
OS
register,
and the T
HYST
register. All programming is done via the 2–wire interface by setting the pointer to the
appropriate location. Table 3 illustrates the pointer settings for the four registers of the DS1775.
Pointer Register Structure
Table 3
POINTER
00h
01h
02h
03h
ACTIVE REGISTER
Temperature (default)
Configuration
T
HYST
T
OS
The DS1775 will power up with the temperature register selected. If the host wishes to change the data
pointer it simply addresses the DS1775 in the write mode (R/
W
=0), receives an acknowledge, and writes
the 8 bits that correspond to the new desired location. The last pointer location is always maintained so
that consecutive reads from the same register do not require the host to always provide a pointer address.
The only exception is at power–up, in which case the pointer will always be set to 00h, the temperature
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