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M58LW032A Datasheet(PDF) 55 Page - STMicroelectronics

Part # M58LW032A
Description  32 Mbit 2Mb x16, Uniform Block, Burst 3V Supply Flash Memory
PDF  61 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M58LW032A Datasheet(HTML) 55 Page - STMicroelectronics

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M58LW032A
Figure 28. Blocks Unprotect Flowchart and Pseudo Code
Write D0h
AI06158b
YES
NO
b7 = 1
Start
Write 60h
Write FFh
Blocks Unprotect
Sucessful
b3 = 1
b4, b5 = 1,1
b5 = 1
VPP Invalid
Error
Invalid Command
Sequence Error
Blocks Unprotect
Error
YES
YES
YES
NO
NO
NO
Block Unprotect Command
– write 60h, Block Adress
– write D0h, Block Adress
while b7 = 1
If b3 = 1, VPP Invalid Error
Read Memory Array Command:
– write FFh
If b4 = 1, b5 = 1 Invalid Command
Sequence Error
If b5 = 1, Blocks Unprotect Error
do:
– read status register ( toggle G or E,
do not use the Read Status Register command)
Read Status Register
(toggle G or E )
End



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