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M36W216 View Datasheet(PDF) - STMicroelectronics

Part NameDescriptionManufacturer
M36W216 16 Mbit 1Mb x16 / Boot Block Flash Memory and 2 Mbit 128Kb x16 SRAM / Multiple Memory Product ST-Microelectronics
STMicroelectronics ST-Microelectronics
M36W216 Datasheet PDF : 62 Pages
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M36W216TI, M36W216BI
Table 15. Block Lock Status
Item
Block Lock Configuration
Block is Unlocked
Block is Locked
Block is Locked-Down
Address
xx002
Data
LOCK
DQ0=0
DQ0=1
DQ1=1
Table 16. Protection Status
Current
Protection Status(1)
(WPF, DQ1, DQ0)
Next Protection Status(1)
(WPF, DQ1, DQ0)
Current State
Program/Erase
Allowed
After
Block Lock
Command
After
Block Unlock
Command
After Block
Lock-Down
Command
After
WPF transition
1,0,0
yes
1,0,1
1,0,0
1,1,1
0,0,0
1,0,1(2)
no
1,0,1
1,0,0
1,1,1
0,0,1
1,1,0
yes
1,1,1
1,1,0
1,1,1
0,1,1
1,1,1
no
1,1,1
1,1,0
1,1,1
0,1,1
0,0,0
yes
0,0,1
0,0,0
0,1,1
1,0,0
0,0,1(2)
no
0,0,1
0,0,0
0,1,1
1,0,1
0,1,1
no
0,1,1
0,1,1
0,1,1
1,1,1 or 1,1,0 (3)
Note: 1. The protection status is defined by the write protect pin and by DQ1 (‘1’ for a locked-down block) and DQ0 (‘1’ for a locked block)
as read in the Read Electronic Signature command with A1 = VIH and A0 = VIL.
2. All blocks are locked at power-up, so the default configuration is 001 or 101 according to WPF status.
3. A WPF transition to VIH on a locked block will restore the previous DQ0 value, giving a 111 or 110.
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