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ST7DALIF2 Datasheet(PDF) 26 Page - STMicroelectronics

No. de pieza ST7DALIF2
Descripción Electrónicos  Configurable watchdog timer
PDF  171 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7DALIF2 Datasheet(HTML) 26 Page - STMicroelectronics

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Data EEPROM
ST7DALIF2
26/171
If a programming cycle is interrupted (by a RESET action), the memory data will not be
guaranteed.
7.6
Data EEPROM readout protection
The readout protection is enabled through an option bit (see Section 22.1 on page 161).
When this option is selected, the programs and data stored in the EEPROM memory are
protected against readout (including a re-write protection). In Flash devices, when this
protection is removed by reprogramming the Option Byte, the entire Program memory and
EEPROM is first automatically erased.
Note:
Both Program Memory and data EEPROM are protected using the same option bit.
Figure 8.
Data EEPROM programming cycle
LAT
ERASE CYCLE
WRITE CYCLE
PGM
tPROG
READ OPERATION NOT POSSIBLE
WRITE OF
DATA LATCHES
READ OPERATION POSSIBLE
INTERNAL
PROGRAMMING
VOLTAGE



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