STTS75DS2F STMicroelectronics, STTS75DS2F Datasheet - Page 17

• Manufacturer Part Number: STTS75DS2F
• Description: IC TEMP SENSOR DGTL WCHDG 8MSOP
• Manufacturer: STMicroelectronics

Specifications of STTS75DS2F

• 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-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Full Temp Accuracy: +/- 3 C
• Digital Output - Bus Interface: Serial (2-Wire, I2C)
• Digital Output - Number Of Bits: 12 bit
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 55 C
• For Use With: 497-8844 - EVAL DAUGHTER STTS75 8-TSSOP497-8419 - BOARD ST72651AR6/STTS75/STLM20
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-6331-2

STTS75
3
3.1
3.1.1
Table 5.
Table 6.
Pointer
value
(H)
00
01
02
03
MSB
Bit7
0
P1
0
0
1
1
Functional description
The STTS75 registers have unique pointer designations which are defined in
page
must “point” to the device register to be accessed.
All of these user-accessible registers can be accessed via the digital serial interface at
anytime (see
●
●
●
●
●
Registers and register set formats
Command/pointer register
The most significant bits (MSBs) of the command register must always be zero. Writing a '1'
into any of these bits will cause the current operation to be terminated (see
The command register retains pointer information between operations. Therefore, this
register only needs to be updated once for consecutive READ operations from the same
register. All bits in the command register default to '0' at power-up.
Command/pointer register format
Register pointers selection summary
P0
0
1
0
1
Bit6
Command register/address pointer register
Configuration register
Temperature register
Overlimit signal temperature register (T
Hysteresis temperature register (T
17. Whenever any READ/WRITE operation to the STTS75 register is desired, the user
0
CONF
Name
TEMP
T
T
HYS
OS
Serial interface on page
Overtemperature
Configuration
Temperature
Description
Bit5
Hysteresis
shutdown
0
register
register
register
Doc ID 13298 Rev 11
Bit4
Width
0
(bits)
16
16
16
8
21), and they include:
HYS
(R/W)
Read
Type
R/W
R/W
R/W
only
)
Bit3
OS
0
Power-on
)
default
4800
5000
N/A
00
Bit2
To store measured temperature data
Default = 75 °C
Set point for overtemperature
shutdown (T
0
Functional description
OS
Comments
Bit1
P1
) limit default = 80 °C
Pointer
Table
Table 6 on
5).
Bit0
LSB
P0
17/41