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| 型號(hào)： | LE28DW3215AT-80 |
| 元件分類： | EEPROM |
| 英文描述： | EEPROM |
| 中文描述： | EEPROM的 |
| 文件頁(yè)數(shù)： | 7/17頁(yè) |
| 文件大?。?/td> | 125K |
| 代理商： | LE28DW3215AT-80 |
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32 Megabit FlashBank Memory
LE28DW3215AT-80
7
SANYO Electric Co., Ltd. Semiconductor Company 1-1-1 Sakata Oizumi Gunma Japan
R.0.00 (2002/2/6) No.XXXX -7/17
Table: 2 Operating Modes Selection
Array Operating Mode
CE#
OE#
WE#
DQ
A20
A19-A0
Read
Bank1
V
IL
V
IL
V
IL
V
IL
V
IH
V
IH
D
OUT
D
OUT
V
IL
V
IH
A
IN
A
IN
Bank2
Block Erase
Bank1
V
IL
V
IL
V
IH
V
IH
V
IL
V
IL
D
IN
D
IN
V
IL
V
IH
See Table3
Bank2
See Table3
Sector Erase
Bank1
V
IL
V
IL
V
IH
V
IH
V
IL
V
IL
D
IN
D
IN
V
IL
V
IH
See Table3
Bank2
See Table3
Program
Bank1
V
IL
V
IL
V
IH
V
IH
V
IH
V
IH
X
V
IL
V
IL
V
IL
X
V
IL
D
IN
D
IN
High Z
X
V
IL
V
IH
X
X
See Table3
Bank2
Stand-by
Write Inhibit
See Table3
X
X
Bank Erase
Bank1
V
IL
V
IL
CE#
V
IH
V
IH
OE#
V
IL
V
IL
WE#
D
IN
D
IN
DQ
V
IL
V
IH
A20
See Table3
Bank2
Status Operating Mode
See Table3
A19-A0
Product Identification
Bank1
V
IL
V
IL
V
IL
V
IL
V
IH
V
IH
D
OUT
D
OUT
V
IL
V
IH
Bank2
A
19
-A
1
=V
IL
Note3)
A
0
=V
IL
or V
IH
Note1: Entering an illegal state during an Erase, Program, or Write operation will not affect the operation, i. e., the
erase program, or write will continue to normal completion
Table: 3 Software Command Codes
1st Bus Cycle
Address
Note1,4
2nd Bus Cycle
Address
Note1,4
3rd Bus Cycle
Address
Note1,4
5555
+B
AX
5555
+B
AX
4th Bus Cycle
Address
Note1,4
5th Bus Cycle
Address
Note1,4
6th Bus Cycle
Address
Note1,4
Data
Note5
Data
Note5
Data
Note5
Data
Note5
Data
Note5
Data
Note5
Command Code
Software ID Entry
5555
AA
2AAA
55
90
Note2
Software ID Exit
5555
AA
2AAA
55
F0
Note3
Word Program
5555
AA
2AAA
55
5555
A0
Word
Address
Data
In
Sector Erase
5555
AA
2AAA
55
5555
80
5555
AA
2AAA
55
S
AX
+B
AX
L
AX
+B
AX
5555
+B
AX
30
Block Erase
5555
AA
2AAA
55
5555
80
5555
AA
2AAA
55
50
Bank Erase
5555
AA
2AAA
55
5555
80
5555
AA
2AAA
55
10
Notes for Software Command Code:
1.Command Code Address format: A14 - A0 are in HEX code.
When Byte Mode, the format is only used by A14-A0.
2.With A19-A0=0;
Sanyo Manufacturer Code = 0062H is read with A0=0.
Sanyo LE28DW3215AT-80 Device code 25B9h, 25BAh is read with A0=1.
3.The device does not remain in software product ID Mode if powered down.
4.Address A20 to A15 are ” Don’t Care ” for Command sequences.
A20 is bank selection address have been reserved in last bus cycle of command sequence.
5.Data format DQ0 to DQ7 are in HEX and DQ8 to DQ15 are “Don’t care”.
6.B
AX
= Bank address: A20, L
AX
= Block address: A19 to A15, S
AX
= Sector address: A19 to A11.
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