w49f002u Winbond Electronics Corp America, w49f002u Datasheet - Page 2

• Manufacturer Part Number: w49f002u
• Description: 256k X 8 Cmos Flash Memory
• Manufacturer: Winbond Electronics Corp America

PIN CONFIGURATIONS
RESET
A13
A17
V
A16
A12
A11
A14
A15
WE
A6
A5
A9
A8
A7
A4
DD
16
1
2
4
5
10
11
12
13
14
15
3
6
7
8
9
DQ0
RESET
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
GND
A16
A15
A12
A4
A3
A2
A5
A1
A0
A7
A6
10
11
12
13
6
7
8
5
9
10
15
11
12
13
14
16
2
1
3
4
5
6
7
8
9
14
A
4
1
2
D
Q
1
15
3
A
1
5
D
Q
2
16
32-pin
TSOP
A
1
6
2
G
D
N
32-pin
32-pin
PLCC
DIP
17
1
D
Q
R
E
S
E
T
3
/
32
18
D
D
V
D
Q
4
31
19
W
E
Q
/
D
5
30
20
A
1
7
D
Q
6
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
27
23
29
28
26
25
24
22
21
V
WE
A17
A14
A13
A8
A9
A11
OE
A10
CE
DQ7
DQ6
DQ5
DQ4
DQ3
OE
A14
A13
A8
A11
A10
CE
DQ7
DD
A9
31
29
28
26
25
23
18
17
32
30
27
24
22
21
20
19
OE
A10
CE
DQ7
DQ6
DQ5
DQ4
DQ3
GND
DQ2
DQ1
DQ0
A0
A1
A2
A3
- 2 -
BLOCK DIAGRAM
PIN DESCRIPTION
RESET
A17
DQ0 DQ7
V
WE
V
SYMBOL
OE
CE
A0
SS
DD
.
.
A0 A17
RESET
GND
V
WE
CE
OE
DD
DECODER
CONTROL
Reset
Address Inputs
Data Inputs/Outputs
Chip Enable
Output Enable
Write Enable
Power Supply
Ground
MAIN MEMORY
BOOT BLOCK
PARAMETER
MAIN MEMORY
128K BYTES
16K BYTES
PIN NAME
OUTPUT
BUFFER
PARAMETER
96K BYTES
8K BYTES
8K BYTES
W49F002U
BLOCK2
BLOCK1
BLOCK1
BLOCK2
DQ0
DQ7
.
.
3FFFF
3C000
3BFFF
3A000
39FFF
38000
37FFF
20000
1FFFF
00000