NJU3552
PRELIMINARY
4-BIT SINGLE CHIP OTP MICRO CONTROLLER
ꢀꢀ PACKAGE OUTLINE
ꢀꢀ 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.
NJU3552L
NJU3552M
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.
ꢀꢀ FEATURES
ꢀꢀ Internal One Time Programmable ROM 1,024 X 8bits
ꢀꢀ Internal Data RAM
64 X 4bits
ꢀꢀ Wide operating voltage range
ꢀꢀ Package outline
2.7V − 5.5V
SDIP24 / DMP24
ꢀꢀ ROM programmer “SUPERPRO/L” by XELTEK co,.
ꢀꢀ PIN CONFIGURATION IN OTP PROGRAMMING MODE
Open
D0
1
24
23
22
21
20
19
18
17
16
15
14
13
VDD
2
CNT2
CNT1
D7
D1
D2
3
4
5
Open
6
Open
D3
7
Open
PROM
8
D6
D5
D4
9
CLK
10
11
12
REQ
Open
RESET
VSS
Note) The pin configuration in Normal operating mode is the same as NJU3502.
26/Mar/2001
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