WED7F328XDNSN
WED7F2328XDNSN
White Electronic Designs
HEADLINE
FEATURES:
DESCRIPTION:
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8M x 32 and 2 x 8m x 32 Densities
The WED7F328XDNSN and WED7F2328XDNSN are
organized as one and two banks of 8M x 32 respec-
tivelyꢀ The modules are based on Intel's E28F640J3,
8M x 8 / 4M x 16 device familyꢀ Both modules offer
access times of 120-150nsꢀ
Based on Intel's Strataflash (J3) family of Flash
Devices
E28F640J3
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(64) 128Kb Erase Blocks (Symetrical)
High Performance Interface Async Page Mode Reads
PIN CONFIGURATIONS
Pin# Pin
Name
VSS
VCC 2NC2
Pin# Pin
Name
NC
Pin# Pin
Name
Pin# Pin
Name
DQ9
120/25
ns
Read Access
Time
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■
2ꢀ7V -3ꢀ6V Vcc Operation
1
2
1
41 11
A
61
62DQ
63
64
65
66
67
68
69
70
71
72V
73
74
75
76
77
78
79
80
2
42A
10
8
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
NC
128 bit Protection Register;
3
NC
2
3
*
43
9
A
64
bit
Unique
Device
Identifier
4
G
24
2
*
44
45
A8
A7
A6
A5
A4
A3
A2
A1
O
64
bit
User
Programmable
OTP
Cells
5
W0
5 SS V
6
W1
2
6
29DQ 46
30DQ 47
31DQ 48
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Common Flash Interface (CFI)
Scaleable Command Set (SCS)
7
NC
2
7
8
DQ16
DQ17
DQ18
DQ19
20
2
8
9
9
2
2
W
49
50
51
52A
53
54
55
56
57
58
59
60
32 byte Write Buffer, 64M Total Erase Cycles
100,000 Erase Cycles per Block
Package
80 pin SIMM
10
11
12DQ
13
14
15
16
17
18
19
30
31
32A
33
34
35
36
37
38
39
NC
A21
20
CC
■
DQ21
DQ22
DQ23
DQ24
DQ25
DQ26
DQ27
A19
A18
A17
A16
A15
A14
A13
A12
W3
VSS
PD1
PD2
PD3
PD4
PD5
PD6
PD7
VSS
DQ15
DQ14
DQ13
DQ12
DQ11
DQ10
CAPACITANCE
8M x32 2 x 8M x 32
Parameter
Sym
CA
Max
35
Max
70
Unit
pF
Address Lines
2
0
2D8 Q 40
Data lines
CDQ
CG
15
30
pF
* SIMM DENSITY
Chip & Write Enable Lines
Output Enable Lines
15
30
pF
32MB PIN 24= E0
64MB PIN 24= E0
PIN 23= NC
PIN 23= E1
CG
35
70
pF
WED7F328XDNSN: 8M x 32
WED7F2328XDNSN: 2 X 8M x 32
FIGꢀ 1
BLOCK DIAGRAMS
A
0-
A
22
A0-
A
22
0
A
0-
A
22
STRATAFLASH
STRATAFLASH
E
0
G
E
G
E
1
G
DQ0-7
DQ0-7
DQ0-7
8M x 8
8M x 8
8M x 8
8M x 8
8M x 8
8M x 8
8M x 8
8M x 8
8M x 8
8M x 8
8M x 8
8M x 8
W
W
W
W
0
1
2
3
W0
W1
W2
W3
W
W
W
W
0
1
2
3
DQ8-15
DQ16-23
DQ24-31
DQ8-15
DQ16-23
DQ24-31
DQ8-15
DQ16-23
DQ24-31
July 2002 Revꢀ 0
ECO #15351
1
White Electronic Designs Corporation (508) 366-5151 wwwꢀwhiteedcꢀcom