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M58LW032D Datasheet(PDF) 45 Page - STMicroelectronics

Part # M58LW032D
Description  32 Mbit 4Mb x8, 2Mb x16, Uniform Block 3V Supply Flash Memory
PDF  51 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M58LW032D Datasheet(HTML) 45 Page - STMicroelectronics

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M58LW032D
Figure 21. Block Unprotect Flowchart and Pseudo Code
Write D0h
AI06158b
YES
NO
SR7 = 1
Start
Write 60h
Write FFh
Read Status Register
Blocks Unprotect
Sucessful
SR3 = 1
SR4, SR5 = 1,1
SR5 = 1
VPEN Invalid Error
Invalid Command
Sequence Error
Blocks Unprotect
Error
YES
YES
YES
NO
NO
NO
Blocks Unprotect Command
– write 60h, Block Adress
– write D0h, Block Adress
do:
– read status register
while SR7 = 1
If SR3 = 1, VPEN Invalid Error
Read Memory Array Command:
– write FFh
If SR4 = 1, SR5 = 1 Invalid Command
Sequence Error
If SR5 = 1, Blocks Unprotect Error



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