NJU3552

- 1 -

4-BIT SINGLE CHIP OTP MICRO CONTROLLER

s GENERAL DESCRIPTION

The NJU3552 is the C-MOS 4-bit Single Chip OTP type

Micro Controller with programmable Flash Memory.

It is completely compatible with the NJU3502 in function

and the pin configuration.

Therefore, the NJU3552 is

suitable for the final evaluation before NJU3502 mask

generation, the small quantity production and short lead-

time.

*

In this data sheet, only OTP programming and the

difference

between

NJU3552

and

NJU3502

are

mentioned mainly.

Therefore the detail function and specification should

be referred on the NJU3502 data sheet.

s FEATURES

q

Internal One Time Programmable ROM

1,024 X 8bits

q

Internal Data RAM

64 X 4bits

q

Wide operating voltage range

2.7V ~ 5.5V

q

Package outline

SDIP24 / DMP24

q

ROM programmer “SUPERPRO/L” by XELTEK co,.

s PIN CONFIGURATION IN OTP PROGRAMMING MODE

Note) The pin configuration in Normal operating mode is the same as NJU3502.

s PACKAGE OUTLINE

PRELIMINARY

NJU3552L

NJU3552M

RESET

D6

Open

1

2

3

4

5

6

7

8

9

10

11

12

24

23

22

21

20

19

18

17

16

15

14

13

D0

D1

D2

PROM

CLK

REQ

Open

D3

Open

D7

Open

CNT2

CNT1

D5

D4

Open