STTS424BDN3F STMicroelectronics, STTS424BDN3F Datasheet - Page 7

• Manufacturer Part Number: STTS424BDN3F
• Description: IC MEMORY MOD TEMP SENSOR 8-TDFN
• Manufacturer: STMicroelectronics

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

STTS424
2
2.1
Serial communications
The STTS424 has a simple 2-wire SMBus/I
allows the user to access the data in the temperature register at any time. It communicates
via the serial interface with a master controller which operates at speeds of up to 400 kHz. It
also gives the user easy access to all of the STTS424 registers in order to customize device
operation.
Device type identifier (DTI) code
The JC42.4 temperature sensor has its own unique I
are no compatibility or data translation issues. The DTI code is the unique 4-bit address,
'0011'.
The full I
and A2 pins. This allows up to 8 unique addresses, hence 8 STTS424 devices may be
connected on the same bus.
Figure 1.
1. SDA and EVENT are open drain.
Table 1.
1. SDA and EVENT are open drain.
See
Pin
1
2
3
4
5
6
7
8
Section 2.2: Pin descriptions on page 9
2
C address consists of the unique DTI code and 3 bits determined by the A0, A1,
EVENT
Symbol
SDA
Logic diagram
Signal names
SCL
V
V
A0
A1
A2
SS
DD
(1)
(1)
Serial bus address selection pin. Can be tied to V
Serial bus address selection pin. Can be tied to V
Serial bus address selection pin. Can be tied to V
Supply ground
Serial data
Serial clock
Event output pin. Open drain and active-low.
Supply power (2.7 V to 3.6 V)
SDA
SCL
A 2
A 1
A 0
(1)
STTS424
2
V DD
V SS
for details.
Description
C-compatible digital serial interface which
2
C address, which ensures that there
AI12947
EVENT
(1)
Serial communications
SS
SS
SS
or V
or V
or V
DD
DD
DD
.
.
.
Input
Input
Input
Input/output
Input
Output
Direction
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