m28w320fcb STMicroelectronics, m28w320fcb Datasheet - Page 22

• Manufacturer Part Number: m28w320fcb
• Description: 32 Mbit 2mb X16, Boot Block 3v Supply Flash Memory
• Manufacturer: STMicroelectronics

Command interface
Table 4.
1. X = Don't Care, RA=Read Address, RD=Read Data, SRD=Status Register Data, ID=Identifier (Manufacture and Device
2. 55h is reserved.
3. The signature addresses are listed in
4. Program Addresses 1 and 2 must be consecutive Addresses differing only for A0.
5. Program Addresses 1,2,3 and 4 must be consecutive Addresses differing only for A0 and A1.
6. To be characterized.
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Read Memory
Array
Read Status
Register
Read Electronic
Signature
Read CFI Query
Erase
Program
Double Word
Program
Quadruple Word
Program
Clear Status
Register
Program/Erase
Suspend
Program/Erase
Resume
Block Lock
Block Unlock
Block Lock-Down
Protection
Register Program
Commands
Code), QA=Query Address, QD=Query Data, BA=Block Address, PA=Program Address, PD=Program Data,
PRA=Protection Register Address, PRD=Protection Register Data.
(4)
(5)
Commands
1+ Write
1+ Write
1+ Write
1+ Write
2
2
3
5
1
1
1
2
2
2
2
Write
Write
Write
Write
Write
Write
Write
Write
Write
Write
Write
Op
1st Cycle
(1)(2)
Add
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Data
D0h
C0h
FFh
70h
20h
40h
10h
30h
56h
50h
B0h
60h
60h
60h
90h
98h
or
(6)
Table
Read
Read
Read
Read
Write
Write
Write PA1
Write PA1
Write
Write
Write
Write PRA PRD
5,
Op
Table 6
2nd Cycle
Add Data
RA
SA
QA
BA
BA
BA
BA
PA
(3)
X
and
SRD
D0h
PD1
PD1
D0h
2Fh
01h
RD
IDh
QD
PD
Table
Bus Write Operations
Write
Write
Op
7.
3rd Cycle
Add Data
PA2
PA2
PD2
PD2
Write
Op
M28W320FCT, M28W320FCB
4th Cycle
Add Data
PA3
PD3 Write
Op
5th Cycle
Add
PA4
Data
PD4