STTS751-0WB3F STMicroelectronics, STTS751-0WB3F Datasheet - Page 20

• Manufacturer Part Number: STTS751-0WB3F
• Description: Board Mount Temperature Sensors 2.25 V Low-Volt Digital Temp Sensor
• Manufacturer: STMicroelectronics

Specifications of STTS751-0WB3F

• Temperature Threshold: + 125 C
• Full Temp Accuracy: - 40 C to + 125 C
• Package / Case: SOT-23-6L
• Digital Output - Bus Interface: 2 Wire, SMBus
• Digital Output - Number Of Bits: 12 bit
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 2.25 V
• Description/function: Digital Temperature Sensor
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Supply Current: 50 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

STTS751 register summary
4.9
Table 20.
4.10
Table 21.
4.11
Table 22.
20/36
ADDR
ADDR
ADDR
(hex)
(hex)
(hex)
22
20
21
R/W
R/W SMBus timeout TIMEOUT
R/W
R/W
R/W
R/W
Therm limit
The Therm limit is a read/write register located at address 20h. The power-on default value
is 85 °C (55h). The format is 8-bit, two's complement integer. This is the same format as
the upper byte of the temperature register
Whenever the temperature exceeds the value of the therm limit, the Addr/Therm output will
be asserted (low). See
Therm limit
Therm hysteresis
The Therm hysteresis values controls the hysteresis for Addr/Therm output. Once Therm
output has asserted, it will not de-assert until the temperature has fallen below the
respective therm limit minus the therm hysteresis value. See
information.
The therm hysteresis register is read/write and is located at address 21h. The power-up
default value is 10 °C (0Ah). The format is 8-bit, two's complement integer.
Therm hysteresis
SMBus timeout register
At power-up, the STTS751 is configured with an SMBus timeout of 25 to 35 milliseconds
(t
SMBus timeout register
TIMEOUT: [bit 7]
[bits 6:0] Not used - reserved.
TIMEOUT
Therm hysteresis
1: SMBus timeout is enabled. Default condition.
0: SMBus timeout is disabled.
Register
Register
Register
Therm
). See
Section 3.7
b7
sign
sign
b7
b7
Section 6
for more information.
64 °C
64 °C
Doc ID 16483 Rev 5
b6
b6
b6
0
for more information.
32 °C
32 °C
b5
b5
b5
0
(Section 4.2: Temperature register
16 °C
16 °C
b4
b4
b4
0
8 °C
8 °C
b3
b3
b3
0
4 °C
4 °C
b2
b2
b2
0
Section 5
2 °C 1 °C
2 °C 1 °C 0A (10 °C, dec)
b1
b1
b1
0
b0
b0
b0
for more
0
55 (85 °C, dec)
format).
default (hex)
default (hex)
default (hex)
Power-up
Power-up
Power-up
STTS751
80