Pin configurations block diagram, Pin description, Power supply gnd ground nc no connection – Rainbow Electronics W29C020C User Manual
Page 2
W29C020C
- 2 -
PIN CONFIGURATIONS
BLOCK DIAGRAM
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
NC
A16
A15
A12
V
W E
A14
A13
A8
A9
A11
OE
A10
C E
DQ7
DQ6
DQ5
DQ4
DQ3
DD
A17
32-pin
DIP
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
C E
DQ7
A
1
2
A
1
6
N
C
V
D
D
/
W
E
A
1
5
A
1
7
32-pin
PLCC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
A3
A2
A1
A0
DQ0
DQ1
DQ2
GND
OE
A10
CE
DQ7
DQ6
DQ5
DQ4
DQ3
32-pin
TSOP
A15
A12
A7
A6
A5
A4
V
WE
A14
A13
A8
DD
A11
A9
NC
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
A16
A17
DECODER
CORE
ARRAY
CONTROL
OUTPUT
BUFFER
CE
OE
WE
A0
A17
.
.
.
DQ0
DQ7
.
.
8K Byte Boot Block (Optional)
8K Byte Boot Block (Optional)
V
V
DD
SS
PIN DESCRIPTION
SYMBOL
PIN NAME
A0
−
A17
Address Inputs
DQ0
−
DQ7
Data Inputs/Outputs
CE
Chip Enable
OE
Output Enable
WE
Write Enable
V
DD
Power Supply
GND
Ground
NC
No Connection
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