NJU3553
PRELIMINARY
4-BIT SINGLE CHIP OTP MICRO CONTROLLER
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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.
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PACKAGE OUTLINE
NJU3553L
NJU3553M
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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,.
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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.
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