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STCN75 датащи(PDF) 7 Page - STMicroelectronics

номер детали STCN75
подробное описание детали  Digital temperature sensor and thermal watchdog
PDF  35 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STCN75 датащи(HTML) 7 Page - STMicroelectronics

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STCN75
Summary description
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1.2
Temperature sensor output
The STCN75 Temperature Sensor has a dedicated open drain Over-Limit Signal/Interrupt
(OS/INT) output which features a thermal alarm function. This function provides a user-
programmable trip and turn-off temperature. It can operate in either of two selectable
modes:
●
Section 2.3: Comparator mode
●
Section 2.4: Interrupt mode.
At power-up the STCN75 immediately begins measuring the temperature and converting
the temperature to a digital value.
The measured temperature value is compared with a temperature limit (which is stored in
the 16-bit (TOS) READ/WRITE register), and the hysteresis temperature (which is stored in
the 16-bit (THYS) READ/WRITE register). If the measured value exceeds these limits, the
OS/INT pin is activated (see Figure 3 on page 8).
Note:
See Pin descriptions on page 8 for details.
Figure 1.
Logic diagram
1.
SDA and OS/INT are open drain.
Table 1.
Signal names
Pin
Sym
Type/direction
Description
1SDA(1)
1.
SDA and OS/INT are open drain.
Input/ Output
Serial data input/output
2
SCL
Input
Serial clock input
3OS/INT(1)
Output
Over-limit signal/interrupt alert output
4
GND
Supply Ground
Ground
5A2
Input
Address2 Input
6A1
Input
Address1 Input
7A0
Input
Address0 Input
8VDD
Supply power
Supply voltage (2.7V to 5.5V)
AI11899
SDA(1)
VDD
STCN75
GND
SCL
OS/INT(1)
A0
A1
A2



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