STCN75DS2E STMICROELECTRONICS [STMicroelectronics], STCN75DS2E Datasheet - Page 7

• Manufacturer Part Number: STCN75DS2E
• Description: Digital temperature sensor and thermal watchdog
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

1.2
Note:
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:
●
●
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 (T
the 16-bit (T
OS/INT pin is activated (see
See
Figure 1.
1. SDA and OS/INT are open drain.
Table 1.
1. SDA and OS/INT are open drain.
Pin
Pin descriptions on page 8
Section 2.3: Comparator mode
Section 2.4: Interrupt
1
2
3
4
5
6
7
8
OS
HYS
Logic diagram
Signal names
OS/INT
) READ/WRITE register), and the hysteresis temperature (which is stored in
SDA
GND
Sym
) READ/WRITE register). If the measured value exceeds these limits, the
SCL
V
A
A
A
DD
2
1
0
(1)
(1)
SDA
mode.
SCL
Type/direction
Supply Ground
Figure 3 on page
Supply power
Input/ Output
A 0
A 1
A 2
(1)
for details.
Output
Input
Input
Input
Input
GND
V DD
STCN75
8).
Serial data input/output
Serial clock input
Over-limit signal/interrupt alert output
Ground
Address2 Input
Address1 Input
Address0 Input
Supply voltage (2.7V to 5.5V)
AI11899
OS/INT
Description
(1)
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