STTS424E02BDN3F STMicroelectronics, STTS424E02BDN3F Datasheet - Page 25

• Manufacturer Part Number: STTS424E02BDN3F
• Description: IC TEMP SENSOR 2KB EEPRM 8-TDFN
• Manufacturer: STMicroelectronics

Specifications of STTS424E02BDN3F

• Function: Temp Monitoring System (Sensor)
• Topology: ADC (Sigma Delta), Register Bank
• Sensor Type: Internal
• Sensing Temperature: -40°C ~ 125°C
• Output Type: I²C™/SMBus™
• Output Alarm: Yes
• Output Fan: No
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-TDFN
• Temperature Threshold: + 150 C
• Full Temp Accuracy: +/- 1 C
• Digital Output - Bus Interface: 2-Wire, I2C
• Digital Output - Number Of Bits: 10 bit
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 2.7 V
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Supply Current: 100 uA
• For Use With: 497-8843 - EVAL DAUGHTER STTS424E02 8-TDFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-8284-2

STTS424E02
4.4
Note:
Temperature trip point registers (R/W)
The STTS424E02 alarm mode registers provide for 11-bit data in 2s compliment format.
The data provides for one LSB = 0.25 °C. All unused bits in these registers are read as '0'.
The STTS424E02 has three temperature trip point registers (see
●
●
●
If the upper or lower boundary threshold values are being altered in-system, all interrupts
should be turned off until a known state can be obtained to avoid superfluous interrupt
activity.
Table 14.
Table 15.
Table 16.
Table 17.
P2
Bit
Bit
Bit
15
15
15
0
0
1
0
0
0
Alarm temperature upper boundary threshold
Alarm temperature lower boundary threshold
Critical temperature trip point value
P1
Bit
Bit
Bit
14
14
14
1
1
0
0
0
0
P0
Bit
Bit
Bit
0
1
0
13
13
13
Temperature trip point register format
Alarm temperature upper boundary register format
Alarm temperature lower boundary register format
Critical temperature register format
0
0
0
UPPER
LOWER
CRITICAL Critical temperature
MSB
MSB
MSB
Sign
Sign
Sign
Name
Bit
Bit
Bit
12
12
12
Bit
Bit
Bit
11
11
11
Alarm temperature upper boundary
Alarm temperature lower boundary
Alarm window upper boundary temperature
Alarm window lower boundary temperature
Doc ID 13448 Rev 8
Bit
Bit
Bit
10
10
10
Register description
Critical temperature trip point
Bit
Bit
Bit
9
9
9
(Table
Bit
Bit
Bit
8
8
8
17).
Bit
Bit
Bit
7
7
7
(Table
(Table
Bit
Bit
Bit
6
6
6
16), and
15),
Bit
Bit
Bit
5
5
5
Temperature sensor registers
Width
(bits)
Bit
Bit
Bit
4
4
4
16
16
16
Table
Bit
Bit
Bit
3
3
3
14):
(R/W)
Type
R/W
R/W
R/W
LSB
LSB
LSB
Bit
Bit
Bit
2
2
2
state (POR)
Default
Bit
Bit
Bit
00 00
00 00
00 00
1
0
1
0
1
0
25/50
Bit
Bit
Bit
0
0
0
0
0
0