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NJU3553

PRELIMINARY

4-BIT SINGLE CHIP OTP MICRO CONTROLLER

s

GENERAL DESCRIPTION

The

NJU3553

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

Micro Controller with programmable Flash Memory.

It is completely compatible with the

NJU3503

in function

and the pin configuration. Therefore, the

NJU3553

is

suitable for the final evaluation before

NJU3503

mask

generation, the small quantity production and short lead-

time.

*

In this data sheet, only OTP programming and the

difference between

NJU3553

and

NJU3503

are

mentioned mainly.

Therefore the detail function and specification should

be referred on the

NJU3503

data sheet.

s

PACKAGE OUTLINE

NJU3553L

NJU3553M

s

FEATURES

q

q

q

q

q

Internal One Time Programmable ROM 2,048 X 8bits

Internal Data RAM

128 X 4bits

Wide operating voltage range

2.7V ~ 5.5V

Package outline

SDIP28 / SDMP30 (Compatible with

NJU3503)

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

s

PIN CONFIGURATION IN OTP PROGRAMMING MODE

[ SDIP28 ]

[ SDMP30 ]

D3

D4

D5

D6

D7

V

DD

CNT1

CNT2

1

2

3

4

28

27

26

25

24

23

22

21

20

19

18

17

16

15

V

DD

RESET

D2

D1

D0

D3

D4

D5

Open

D6

D7

V

DD

CNT1

CNT2

7

8

9

10

11

12

13

V

SS

14

NJU3553L

5

6

Open

Open

Open

PROM

REQ

CLK

V

SS

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

V

DD

RESET

D2

D1

D0

NJU3553M

Open

PROM

Open

REQ

CLK

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

NJU3503.

-1-

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