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