STCN75M2E STMicroelectronics, STCN75M2E Datasheet - Page 6

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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Description
The STCN75 is a high-precision digital CMOS temperature sensor IC with a sigma-delta
temperature-to-digital converter and an I
on page
thermal management, electronics equipment, and industrial controllers, and is packaged in
the industry standard 8-lead TSSOP and SO8N packages.
The device contains a band gap temperature sensor and 9-bit ADC which monitor and
digitize the temperature to a resolution up to 0.5 °C. The STCN75 is typically accurate to
(±3 °C - max) over the full temperature measurement range of –55 °C to 125 °C with ±2 °C
accuracy in the –25 °C to +100 °C range. The STCN75 is pin-for-pin and software
compatible with the TCN75.
STCN75 is specified for operating at supply voltages from 2.7 V to 5.5 V. Operating at 3.3 V,
the supply current is typically (125 µA).
The on-board sigma-delta analog-to-digital converter (ADC) converts the measured
temperature to a digital value that is calibrated in degrees centigrade; for Fahrenheit
applications a lookup table or conversion routine is required.
The STCN75 is factory-calibrated and requires no external components to measure
temperature.
Serial communications
The STCN75 has a simple 2-wire I
user to access the data in the temperature register at any time. It communicates via the
serial interface with a master controller which operates at speeds up to 400 kHz. Three pins
(A0, A1, and A2) are available for address selection, and enable the user to connect up to 8
devices on the same bus without address conflict.
In addition, the serial interface gives the user easy access to all STCN75 registers to
customize operation of the device.
7). It is targeted for general applications such as personal computers, system
Doc ID 13307 Rev 8
2
C-compatible digital serial interface which allows the
2
C-compatible serial digital interface (see
Figure 1
STCN75

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