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NJU3552

4-BIT SINGLE CHIP OTP MICRO CONTROLLER

Japan Radio Corporation  

NJU3552

PRELIMINARY

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 PACKAGE OUTLINE

NJU3552L

NJU3552M

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

Open 1

D0

2

D1

3

D2

4

Open

5

6

D3

7

Open 8

PROM

9

CLK

10

REQ

11

VSS

12

24

VDD

23

CNT2

22

CNT1

21

D7

20

19

Open

18

17

D6

16

D5

15

D4

14 Open

13

RESET

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

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