NJU3551 Datasheet, PDF (1/13 Pages) New Japan Radio – 4-BIT SINGLE CHIP OTP MICRO CONTROLLER

NJU3551
PRELIMINARY
4-BIT SINGLE CHIP OTP MICRO CONTROLLER
s 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.
s PACKAGE OUTLINE
* 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
s FEATURES
q Internal One Time Programmable ROM 512 X 8bits
q Internal Data RAM
64 X 4bits
q Wide operating voltage range
2.7V ~ 5.5V
q Package outline
DIP20 / SOP20
q ROM programmer “SUPERPRO/L” by XELTEK co,.
s PIN CONFIGURATION IN OTP PROGRAMMING MODE
Open 1
D0
2
D1
3
D2
4
D3
5
Open 6
PROM
7
CLK
8
REQ
9
V_SS
10
20
V_DD
19 Open
18
CNT2
17
CNT1
16
D7
15
D6
14
D5
13
D4
12 Open
11
RESET
Note) The pin configuration in Normal operating mode is the same as NJU3501.
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