M28W320EB-ZB STMICROELECTRONICS [STMicroelectronics], M28W320EB-ZB Datasheet - Page 14

• Manufacturer Part Number: M28W320EB-ZB
• Description: 32 Mbit (2Mb x16, Boot Block) 3V Supply Flash Memory
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

M28W320EBT, M28W320EBB
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),
Table 5. Read Electronic Signature
Note:
14/45
Manufacture.
Code
Device Code
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
Commands
2. A0=V
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.
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.
RP = V
(3)
(4)
IL
IH
outputs Manufacturer code, A0=V
.
M28W320EBT
M28W320EBB
Cycles
No. of
Device
Write
Write
Write
Write
Write
Write
Write
Write
Write
Write
Write
Bus
Op.
X
X
X
X
X
X
X
X
X
X
X
1st Cycle
V
V
V
E
40h or
56h
IL
IL
IL
Addr
FFh
B0h
D0h
70h
90h
98h
20h
10h
30h
50h
(6)
IH
V
V
V
G
IL
IL
IL
Data
Read
Read
Read
Read
Write
Write
Write
Write
outputs Device code. Address A7-A1 must be V
V
V
V
W
Bus Write Operations
IH
IH
IH
SA
Bus
Op.
PA1
PA1
RA
QA
BA
PA
X
(2)
2nd Cycle
V
V
V
A0
IH
IH
IL
Addr
SRD
PD1
PD1
D0h
IDh
QD
RD
PD
A1-A7
V
V
V
Data
Write
Write
IL
IL
IL
Bus
Don’t Care
Don’t Care
Don’t Care
Op.
PA2
PA2
A8-A20
3nd Cycle
Addr
PD2
PD2
IL
.
Data
Write
DQ0-DQ7
BCh
BDh
20h
PA3
DQ8-DQ15
PD3
00h
88h
88h
Write