Pin configurations, Block diagram, Pin description – Rainbow Electronics W49F002U User Manual

Page 2: Power supply gnd ground

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W49F002U

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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

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