stcn75 STMicroelectronics, stcn75 Datasheet - Page 8

• Manufacturer Part Number: stcn75
• Description: Digital Temperature Sensor And Thermal Watchdog
• Manufacturer: STMicroelectronics

1.3
1.3.1
1.3.2
1.3.3
8/35
Figure 2.
1. SDA and OS/INT are open drain.
Figure 3.
Pin descriptions
See
to this device.
SDA (open drain)
This is the Serial Data Input/Output pin for the 2-wire serial communication port.
SCL
This is the Serial Clock Input pin for the 2-wire serial communication port.
OS/INT (open drain)
This is the Over-Limit Signal/Interrupt Alert Output pin. It is open drain, so it needs a pull-up
resistor. In Interrupt mode, it outputs a pulse whenever the measured temperature exceeds
the programmed threshold (T
the measured temperature is above or below the threshold and hysteresis (T
V DD
Figure 1 on page 7
A 0
A 1
A 2
Analog-to-Digital
Converter (ADC)
Connections (SO8 and TSSOP8)
Functional block diagram
Temperature
Sensor and
S-D
and
2-wire I
OS/INT (1)
Table 1 on page 7
OS
SDA (1)
THYS Set Point Register
TOS Set Point Register
). It behaves as a thermostat, toggling to indicate whether
Configuration Register
Temperature Register
2
GND
SCL
C Interface
1
2
3
4
for a brief overview of the signals connected
8
7
6
5
GND
AI11841
V DD
A 0
A 1
A 2
Control and Logic
Pointer Register
Comparator
HYS
).
AI11833a
OS/INT
SDA
SCL