STLM75M2E STMicroelectronics, STLM75M2E Datasheet - Page 17

• Manufacturer Part Number: STLM75M2E
• Description: IC TEMP SENSOR DIGITAL SO-8
• Manufacturer: STMicroelectronics

Specifications of STLM75M2E

• Featured Product: STM32 Cortex-M3 Companion Products
• 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
• For Use With: 497-10508 - BOARD EVAL FOR MEMS SENSORS497-10048 - BOARD EVAL ACCELEROMETER497-6238 - BOARD STLM75/STDS75/ST72F651
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

STLM75
Table 5.
3.1.2
Table 6.
1. Indicates operation mode; 0 = comparator mode, and 1 = interrupt mode (see
2. The OS is active-low ('0').
Pointer
STLM75
value
Default
page
(H)
Byte
00
01
02
03
Keys: SD = shutdown control bit
13).
P1
0
0
1
1
M = thermostat mode
POL = output polarity
FT0 = fault tolerance0 bit
Register pointers selection summary
Configuration register
The configuration register is used to store the device settings such as device operation
mode, OS operation mode, OS polarity, and OS fault queue.
The configuration register allows the user to program various options such as thermostat
fault tolerance, thermostat polarity, thermostat operating mode, and shutdown mode. The
user has READ/WRITE access to all of the bits in the configuration register except the MSB
(Bit7), which is reserved as a “Read only” bit (see
thus powers-up in its default state only.
Configuration register format
Reserved
MSB
Bit7
P0
0
1
0
1
0
TEMP
CONF
Name
T
T
HYS
OS
Bit6
Overtemperature
0
0
Configuration
Temperature
Description
Hysteresis
shutdown
(2)
(1)
register
register
register
Bit5
0
0
Doc ID 13296 Rev 12
Width
(bits)
16
16
16
8
Bit4
FT1
0
Read-
(R/W)
Type
R/W
R/W
R/W
only
FT1 = fault tolerance1 bit
Bit 5 = must be set to '0'.
Bit 6 = must be set to '0'.
Bit 7 = must be set to '0'. Reserved.
Power-on
default
Bit3
FT0
4B00
5000
Table
N/A
0
00
Comparator mode
6). The entire register is volatile and
To store measured temperature data
Default = 75 °C
Set point for overtemperature
shutdown (T
POL
Bit2
0
Functional description
and
OS
Comments
) limit default = 80 °C
Interrupt mode on
Bit1
M
0
Bit0
LSB
SD
0
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