STCN75M2E STMicroelectronics, STCN75M2E Datasheet - Page 18

IC TEMP SENSOR DIGITAL SO-8

STCN75M2E

Manufacturer Part Number
STCN75M2E
Description
IC TEMP SENSOR DIGITAL SO-8
Manufacturer
STMicroelectronics
Datasheet

Specifications of STCN75M2E

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Function
Temp Sensor, Watchdog
Topology
ADC (Sigma Delta), Comparator, Register Bank
Sensor Type
Internal
Sensing Temperature
-55°C ~ 125°C
Output Type
I²C™/SMBus™
Output Alarm
Yes
Output Fan
No
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-55°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (0.154", 3.90mm Width)
Full Temp Accuracy
+/- 3 C
Digital Output - Bus Interface
Serial (2-Wire, I2C)
Digital Output - Number Of Bits
9 bit
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 55 C
Ic Output Type
Digital
Sensing Accuracy Range
± 0.5°C
Temperature Sensing Range
-55°C To +125°C
Supply Current
125µA
Supply Voltage Range
2.7V To 5.5V
Sensor Case Style
SOIC
No. Of Pins
8
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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Part Number:
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Functional description
3.1.5
3.2
Note:
18/37
Hysteresis temperature register (T
T
programmable lower trip-point temperature for the thermal alarm in two’s complement
format (see
(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 bit 14 contains the temperature MSB.
Table 8.
1. These are comparable formats to the DS75 and LM75.
Power-up default conditions
The STCN75 always powers up in the following default states:
After power-up these conditions can be reprogrammed via the serial interface.
STCN75
HYS
Bytes
Bits
Keys: S = two’s complement sign bit
Thermostat mode = comparator mode
Polarity = active-low
Fault tolerance = 1 fault (i.e., relevant bits set to '0' in the configuration register)
T
T
Register pointer = 00 (temperature register)
register is a two-byte (16-bit) READ/WRITE register that stores the user-
OS
HYS
= 80 °C
TMSB = temperature MSB
TLSB = temperature LSB
TD = temperature Data
MSB
= 75 °C
15
Table
S
T
OS
and T
TMSB
8). This register defaults to 75 °C at power-up
14
HYS
TD TD TD TD TD TD
13
HS byte
register format
Doc ID 13307 Rev 8
12
TMSB
11
10
(1)
HYS
9
)
8
TLSB
9-bit
7
6
0
5
0
TLSB
LS byte
4
0
3
0
2
0
STCN75
1
0
LSB
0
0

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