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M58BW016DB Datasheet(PDF) 53 Page - STMicroelectronics

Part # M58BW016DB
Description  16 Mbit 512Kb x32, Boot Block, Burst 3V Supply Flash Memories
PDF  63 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M58BW016DB Datasheet(HTML) 53 Page - STMicroelectronics

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M58BW016BT, M58BW016BB, M58BW016DT, M58BW016DB
Figure 25. Unlock Device and Change Tuning Protection Code Flowchart
AI04501
Reset
Device locked
by tuning code
1st: Write Cycle
2nd: Write Cycle
(old code,
factory setup = 0xFFFFh)
YES
3rd: Write Cycle
4th: Write Cycle
(old code,
factory setup = 0xFFFFh)
YES
YES
NO
DEVICE LOCKED
Add: don't care
Data: 0x48h
6th: Write Cycle
Add: 0x00000h
Data: First 32 bit
7th: Write Cycle
(new code)
YES
b7 = 1
Add: don't care
Data: 0x48h
8th: Write Cycle
Add: 0x00001h
Data: Second 32 bit
9th: Write Cycle
(new code)
YES
b7 = 1
DEVICE UNLOCKED
Reset
Device locked
by new code
TUNING PROTECTION
UNLOCK SEQUENCE
Add: don't care
Data: 0xFFh
5th: Write Cycle
Issue Read command
Issue
Read
command
Add: don't care
Data: 0x78h
Add: 0x00000h
Data: First 32 bit
b7 = 1
Add: don't care
Data: 0x78h
Add: 0x00001h
Data: Second 32 bit
b7 = 1
Read Status
Register
b0 = 1
Add: don't care
Data: 0xFFh



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