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M28W320ECT10N6F データシート(PDF) 14 Page - STMicroelectronics

部品番号 M28W320ECT10N6F
部品情報  32 Mbit (2Mb x16, Boot Block) 3V Supply Flash Memory
PDF  53 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M28W320ECT10N6F データシート(HTML) 14 Page - STMicroelectronics

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The lock status can be monitored for each block
using the Read Electronic Signature command.
Locked-Down blocks revert to the locked (and not
locked-down) state when the device is reset on
power-down. Table. 10 shows the protection sta-
tus after issuing a Block Lock-Down command.
Refer to the section, Block Locking, for a detailed
explanation.
Table 4. Commands
Note: 1. X = Don’t Care, RA=Read Address, RD=Read Data, SRD=Status Register Data, ID=Identifier (Manufacture and Device Code),
QA=Query Address, QD=Query Data, BA=Block Address, PA=Program Address, PD=Program Data, PRA=Protection Register Ad-
dress, PRD=Protection Register Data.
2. The signature addresses are listed in Tables 5, 6 and 7.
3. Program Addresses 1 and 2 must be consecutive Addresses differing only for A0.
4. Program Addresses 1,2,3 and 4 must be consecutive Addresses differing only for A0 and A1.
5. 55h is reserved.
6. To be characterized.
Commands
Bus Write Operations
1st Cycle
2nd Cycle
3rd Cycle
4th Cycle
5th Cycle
Op. Add Data
Op. Add Data
Op.
Add Data Op.
Add Data
Op. Add Data
Read Memory
Array
1+ Write
X
FFh
Read
RA
RD
Read Status
Register
1+ Write
X
70h
Read
X
SRD
Read Electronic
Signature
1+ Write
X
90h
Read SA(2)
IDh
Read CFI Query
1+ Write
X
98h
Read
QA
QD
Erase
2
Write
X
20h
Write
BA
D0h
Program
2
Write
X
40h
or
10h
Write
PA
PD
Double Word
Program(3)
3
Write
X
30h
Write
PA1
PD1
Write
PA2
PD2
Quadruple Word
Program(4)
5Write
X
56h(6) Write
PA1
PD1
Write
PA2
PD2
Write
PA3
PD3 Write
PA4
PD4
Clear Status
Register
1
Write
X
50h
Program/Erase
Suspend
1Write
X
B0h
Program/Erase
Resume
1Write
X
D0h
Block Lock
2
Write
X
60h
Write
BA
01h
Block Unlock
2
Write
X
60h
Write
BA
D0h
Block Lock-Down
2
Write
X
60h
Write
BA
2Fh
Protection
Register Program
2
Write
X
C0h
Write
PRA
PRD



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