King Billion Electronics Co., Ltd

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SF23C3200B

December 8, 2003

Page 3 of 7

V1.1

This specification is subject to change without notice. Please contact sales person for the latest version before use.

4. Pin Description

SF23C3200

10

9

8

7

6

5

4

3

41

40

39

38

37

36

35

34

33

11

13

32

14

16

18

20

23

25

27

29

22

12

2

1

42

15

17

19

21

24

26

28

30

31

43

A0

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

A12

A13

A14

A15

A16

CE

OE

BYTE

Q0

Q1

Q2

Q3

Q4

Q5

Q6

Q7

VCC

GND

A17

A18

A19

Q8

Q9

Q10

Q11

Q12

Q13

Q14

Q15/A-1

GND

A20

Symbol

Pin No. I/O

Description

A18, A17

1, 2

I

Mask ROM Address input pins.

A7 ~ A0

3 ~ 10

I

Mask ROM Address input pins.

CEn

11

I

The CEn (Chip Enable) input is the device selection and power control for

internal Mask ROM array. Whenever CEn goes high, the internal Mask

ROM will enter standby (power saving) mode. Otherwise, it is in active

mode and the contents of the ROM can be accessed.

GND

12

P

Negative power supply input pin.

OEn

13

I

OEn (Output Enable) is the output control which gates ROM array data onto

the data output pins Q7 ~ Q0 in Byte mode (BYTEB pin is at “low” state) or

Q15A-1, Q14 ~ Q0 in Word mode (BYTEB pin is at “high” state).

Q0,

Q1,

Q2,

Q3,

Q4,

Q5,

Q6,

Q7,

14,

16,

18,

20,

23,

25,

27,

29

O,

O,

O,

O,

O,

O,

O,

O,

Mask ROM array Data lower byte outputs drive Q7 ~ Q0 pins during read

operations (CEn and OEn are “low”). The Q7 ~ Q0 pins stay in high-Z when

the chip is deselected (CEn high) or when the outputs are disabled (OEn

high).

Q8,

Q9,

Q10,

Q11,

Q12,

Q13,

Q14,

Q15A-1,

15,

17,

19,

21,

24,

26,

28,

30

O,

O,

O,

O,

O,

O,

O,

O/I,

Mask ROM data higher byte output pins when Word mode is selected

(BYTEB is at “high” level) during read operations (CEn and OEn are

“low”). They will be tri-stated when Byte mode is selected (BYTEB at

“low” level), the chip is deselected (CEn high), the outputs are disabled

(OEn high).

Q15A-1 is Mask ROM MSB Data output pin in Word mode and LSB

address pin in Byte mode.

VCC

22

P

Positive power supply input pin.