STTS424BDN3F STMicroelectronics, STTS424BDN3F Datasheet - Page 23
STTS424BDN3F
Manufacturer Part Number
STTS424BDN3F
Description
IC MEMORY MOD TEMP SENSOR 8-TDFN
Manufacturer
STMicroelectronics
Datasheet
1.STTS424BDN3F.pdf
(36 pages)
Specifications of STTS424BDN3F
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
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-8502-2
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
STTS424
4.4
Note:
Table 13.
Temperature trip point registers (r/w)
The STTS424 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 STTS424 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.
P2
Bit
Bit
15
13
14
15
0
0
1
0
Alarm temperature upper boundary threshold
Alarm temperature lower boundary threshold
Critical temperature trip point value
P1
Below (temperature) alarm window
– 0 = Temperature is equal to or above the alarm window lower boundary temperature.
– 1 = Temperature is below the alarm window.
Above (temperature) alarm window
– 0 = Temperature is equal to or below the alarm window upper boundary temperature.
– 1 = Temperature is below the alarm window.
Above critical trip
– 0 = Temperature is below the critical temperature setting.
– 1 = Temperature is equal to or above the critical temperature setting.
Bit
14
1
1
0
0
P0
Bit
0
1
0
13
Temperature register bit definitions
Temperature trip point register format
Alarm temperature upper boundary register format
0
UPPER
LOWER
CRITICAL Critical temperature
Sign
MSB
Name
Bit
12
Bit
11
Alarm temperature upper boundary
Alarm temperature lower boundary
Alarm window upper boundary temperature
Bit
10
Definition with hysteresis = 0
Bit
Register description
9
(Table
Bit
8
Bit
17).
7
(Table
(Table
Bit
6
16), and
15),
Bit
5
Temperature sensor registers
Table
Bit
4
14):
Width
(bits)
16
16
16
Bit
3
LSB
(R/W)
Bit
Type
R/W
R/W
R/W
2
Bit
1
0
Default
(POR)
00 00
00 00
00 00
state
23/36
Bit
0
0