NJU3551
PRELIMINARY
4-BIT SINGLE CHIP OTP MICRO CONTROLLER
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GENERAL DESCRIPTION
The
NJU3551
is the C-MOS 4-bit Single Chip OTP type
Micro Controller with programmable Flash Memory.
It is completely compatible with the
NJU3501
in function
and the pin configuration. Therefore, the
NJU3551
is
suitable for the final evaluation before
NJU3501
mask
generation, the small quantity production and short lead-
time.
*
In this data sheet, only OTP programming and the
difference between
NJU3551
and
NJU3501
are
mentioned mainly.
Therefore the detail function and specification should
be referred on the
NJU3501
data sheet.
NJU3551D
NJU3551G
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PACKAGE OUTLINE
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FEATURES
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q
q
q
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Internal One Time Programmable ROM 512 X 8bits
Internal Data RAM
64 X 4bits
Wide operating voltage range
2.7V ~ 5.5V
Package outline
DIP20 / SOP20
ROM programmer 鈥淪UPERPRO/L鈥?by XELTEK co,.
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PIN CONFIGURATION IN OTP PROGRAMMING MODE
Open
D0
D1
D2
D3
Open
PROM
CLK
REQ
V
SS
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
V
DD
Open
CNT2
CNT1
D7
D6
D5
D4
Open
RESET
Note) The pin configuration in Normal operating mode is the same as
NJU3501.
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