STTS424E02BDN3F STMicroelectronics, STTS424E02BDN3F Datasheet - Page 32

• 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

SPD EEPROM operation
5.5.3
32/50
Write cycle polling using ACK
During the internal write cycle, the device disconnects itself from the bus, and writes a copy
of the data from its internal latches to the memory cells. The maximum write time (t
shown
make use of this, a polling sequence can be used by the bus master.
The sequence, as shown in
●
●
●
Figure 13. Write cycle polling flowchart using ACK
First byte of instruction
with RW = 0 already
decoded by the device
Initial condition: a write cycle is in progress.
Step 1: the bus master issues a start condition followed by a device select code (the
first byte of the new instruction).
Step 2: if the device is busy with the internal write cycle, no ACK will be returned and
the bus master goes back to step 1. If the device has terminated the internal write
cycle, it responds with an ACK, indicating that the device is ready to receive the second
part of the instruction (the first byte of this instruction having been sent during step 1).
inTable 2: AC SMBus and I
ReSTART
STOP
NO
Figure
NO
DEVICE SELECT
START Condition
Doc ID 13448 Rev 8
Addressing the
WRITE Cycle
in Progress
with RW = 0
Operation is
Returned
Memory
2
ACK
Next
C compatibility timings
13, is:
YES
WRITE Operation
WRITE Operation
Continue the
DATA for the
YES
NO
and Receive ACK
Send Address
Condition
START
, but the typical time is shorter. To
Random READ Operation
DEVICE SELECT
Continue the
with RW = 1
YES
STTS424E02
w
) is
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