STTS424E02BDN3F STMicroelectronics, STTS424E02BDN3F Datasheet - Page 29

• 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
5.4
Table 21.
Figure 10. Result of setting the write protection
Setting the write protection
The Write Control (WC) is tied low, hence the write protection of the memory array is
dependent on whether software write-protection has been set.
Software write-protection allows the bottom half of the memory area (addresses 00h to 7Fh)
to be write protected irrespective of subsequent states of the write control (WC) signal.
Software write-protection is handled by three instructions:
●
●
●
The level of write-protection (set or cleared) that has been defined using these instructions,
remains defined even after a power cycle.
Current address read
Random address read
Sequential read
Byte write
Page write
TS write
TS read
SWP: Set write protection
CWP: Clear write protection
PSWP: Permanently set write protection
Mode
Memory
Area
Operating modes
Default EEPROM memory area
state before write access
to the Protect Register
Standard
Standard
R/W bit
Array
Array
1
0
1
1
0
0
0
1
Doc ID 13448 Rev 8
FFh
80h
7Fh
00h
Bytes
≤ 16
≥ 1
1
1
1
2
2
START, device select, R/W = 1
START, device select, R/W = 0, address
reSTART, device select, R/W = 1
Similar to current or random address read
START, device select, R/W = 0
START, device select, R/W = 0
START, device select, R/W = 0, pointer data, stop
START, device select, R/W = 1, pointer data, stop
State of the EEPROM memory
area after write access
to the Protect Register
Protected
Standard
Initial sequence
Array
Write
Array
SPD EEPROM operation
FFh
80h
7Fh
00h
AI01936c
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