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NJU3555

PRELIMINARY

4-BIT SINGLE CHIP OTP MICRO CONTROLLER

s

GENERAL DESCRIPTION

The

NJU3555

is the C-MOS 4-bit Single Chip OTP type

Micro Controller with programmable Flash Memory.

It is completely compatible with the

NJU3505

in function

and the pin configuration. Therefore, the

NJU3555

is

suitable for the final evaluation before

NJU3505

mask

generation, the small quantity production and short lead-

time.

*

In this data sheet, only OTP programming and the

difference between

NJU3555

and

NJU3505

are

mentioned mainly.

Therefore the detail function and specification should

be referred on the

NJU3505

data sheet.

NJU3555FA1

NJU3555L

s

PACKAGE OUTLINE

s

FEATURES

q

q

q

q

q

8,192 X 8bits

8,128 X 8bits (Program area)

64 X 8bits (Option area)

Internal Data RAM

256 X 4bits

Wide operating voltage range

2.7V ~ 5.5V

Package outline

QFP44-A1 / SDIP42 (Compatible with

NJU3505)

ROM programmer 鈥淪UPERPRO/L鈥?by XELTEK co,.

Internal One Time Programmable ROM

s

PIN CONFIGURATION IN OTP PROGRAMMING MODE

[ QFP44-A1 ]

CNT2

Open

CNT1

Open

D7

D6

[ SDIP42 ]

CNT1

CNT2

V

DD

Open

D5

D4

D3

D2

Open

D1

D0

Open

Open

RESET

PROM

CLK

REQ

V

SS

V

SS

Open

1

2

Open

3

4

5

6

RESET

PROM

CLK

REQ

V

SS

7

8

9

10

12

13

14

15

16

17

18

19

20

21

11

33

32

31

30

29

28

27

26

25

24

22

23

NJU3555FA1

Open

V

DD

Open

V

DD

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

42

41

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

24

23

22

Open

D7

D6

V

DD

Open

D5

D4

D3

D2

Open

D1

D0

44

43

42

41

40

39

38

37

36

35

34

NJU3555L

Open

Note) The pin configuration in Normal operating mode is the same as

NJU3505.

V

SS

-1-

next

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