NJU3554 Datasheet, PDF (1/17 Pages) New Japan Radio – 4-BIT SINGLE CHIP OTP MICRO CONTROLLER

NJU3554
PRELIMINARY
4-BIT SINGLE CHIP OTP MICRO CONTROLLER
s GENERAL DESCRIPTION
The NJU3554 is the C-MOS 4-bit Single Chip OTP type
Micro Controller with programmable Flash Memory.
It is completely compatible with the NJU3504 in function
and the pin configuration. Therefore, the NJU3554 is
suitable for the final evaluation before NJU3504 mask
generation, the small quantity production and short lead-
time.
s PACKAGE OUTLINE
* In this data sheet, only OTP programming and the
difference between NJU3554 and NJU3504 are
mentioned mainly.
Therefore the detail function and specification should
be referred on the NJU3504 data sheet.
NJU3554FA1
NJU3554L
s FEATURES
q Internal One Time Programmable ROM 4,096 X 8bits
q Internal Data RAM
256 X 4bits
q Wide operating voltage range
2.7V ~ 5.5V
q Package outline
QFP44-A1 / SDIP42 (Compatible with NJU3504)
q ROM programmer “SUPERPRO/L” by XELTEK co,.
s PIN CONFIGURATION IN OTP PROGRAMMING MODE
[ QFP44-A1 ]
[ SDIP42 ]
1
2
Open ³
4
5
6
RESET
7
PROM
8
CLK
9
REQ
10
V_SS 11
NJU3554FA1
33 V_DD
32 Open
31
D5
30
D4
29
D3
28
D2
27 Open
26
D1
25
D0
24 _Open
23
CNT1
1
CNT2
2
3
4
5
Open 6
7
8
9
RESET
10
PROM
11
CLK
12
REQ
13
V_SS 14
V_SS 15
16
17
Open 18
19
20
V_DD 21
42
41
40
Open
39
38
D7
37
D6
36 V_DD
35 Open
34
D5
33
D4
32
D3
31
D2
30 Open
29
D1
28
D0
27
26
25
24
Open
23
22
Note) The pin configuration in Normal operating mode is the same as NJU3504.
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