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PDF NJU3555 Data sheet ( Hoja de datos )
| Número de pieza | NJU3555 | |
| Descripción | 4-BIT SINGLE CHIP OTP MICRO CONTROLLER | |
| Fabricantes | New Japan Radio | |
| Logotipo |  |
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NJU3555
PRELIMINARY
4-BIT SINGLE CHIP OTP MICRO CONTROLLER
s GENERAL DESCRIPTION
The NJU3555 is the C-MOS 4-bit Single Chip OTP type
Micro Controller with programmable Flash Memory.
It is completely compatible with the NJU3505 in function
and the pin configuration. Therefore, the NJU3555 is
suitable for the final evaluation before NJU3505 mask
generation, the small quantity production and short lead-
time.
s PACKAGE OUTLINE
* In this data sheet, only OTP programming and the
difference between NJU3555 and NJU3505 are
mentioned mainly.
Therefore the detail function and specification should
be referred on the NJU3505 data sheet.
NJU3555FA1
NJU3555L
s FEATURES
q Internal One Time Programmable ROM 8,192 X 8bits
8,128 X 8bits (Program area)
64 X 8bits (Option area)
q Internal Data RAM
256 X 4bits
q Wide operating voltage range
2.7V ~ 5.5V
q Package outline
QFP44-A1 / SDIP42 (Compatible with NJU3505)
q ROM programmer “SUPERPRO/L” by XELTEK co,.
s PIN CONFIGURATION IN OTP PROGRAMMING MODE
[ QFP44-A1 ]
[ SDIP42 ]
Open
RESET
PROM
CLK
REQ
VSS
1
2
3
4
5
6
7
8
9
10
11
NJU3555FA1
33 VDD
32 Open
31 D5
30 D4
29 D3
28 D2
27 Open
26 D1
25 D0
24 Open
23
CNT1
CNT2
Open
RESET
PROM
CLK
REQ
VSS
VSS
Open
VDD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
42
41
40
Open
39
38 D7
37 D6
36 VDD
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 NJU3505.
-1-
1 page  
NJU3555
q Reset Terminal Type
Internal Pull-up Resistance
NJU3555
With Pull-up
NJU3505
Without Pull-up
q Option information set in the initialization
When the initialization is performed(RESET terminal is “L”), the operation information stored in option area is
set as shown in the following timing chart . The option information is set in the term of 1 / fOSC x 512clock after
RESET releasing and oscillation stability time. After information set, the program counter is set to 0000H and
the NJU3555 operates in normal.
[ TIMING CHART ]
Oscillator
Clock
Oscillation
Stability
Time
Option information setting
1/fOSCx512clock
Normal
Operation
Oscillation
Start
PC=0000H
RESET
fOSC=4MHz
about 128µsec
-5-
5 Page 
NJU3555
s ELECTRICAL CHARACTERISTICS AC CHARACTERISTICS 1
PARAMETER
Operating
Frequency
Instruction Cycle
Time
External Clock
Pulse Width
External Clock
Rise Time
Fall Time
RESET Low-Level
Width
RESET Rise Time
Port Input Level
Width
Edge Detection (PH1)
Rise Time
Fall Time
Restart Signal (PH0)
Rise Time
External interrupt
input (EXTI)
Rise Time
Fall Time
CNTI Clock
Frequency
CNTI High-Level
Width
CNTI
Rise Time
Fall Time
SYM
BOL
fOSC
tC
tCPH
tCPL
tCPR
tCPF
tRST
tRSR
tPIN
tEDR
tEDF
tSTR
tEXR
tEXF
fCT
tCT
tCTR
tCTF
CONDITIONS
VDD=2.7~3.6V
VDD=3.6~5.5V
X’tal Resonator
Ceramic Resonator
External Resistor
Oscillation
External Clock
X’tal Resonator
Ceramic Resonator
External Resistor
Oscillation
External Clock
VDD=2.7~3.6V
VDD=3.6~5.5V
VDD=2.7~5.5V
VDD=2.7~5.5V
VDD=2.7~5.5V
VDD=2.7~5.5V
VDD=2.7~5.5V
VDD=2.7~5.5V
VDD=2.7~5.5V
VDD=2.7~5.5V
VDD=2.7~5.5V
VDD=2.7~5.5V
MIN
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
250
125
4/fOSC
6/fOSC
6/fOSC
(VSS=0V, Ta= -20~75°C)
TYP MAX UNIT
2.0
2.0
1.0
2.0 MHz
4.0
4.0
2.0
4.0
6/fOSC
16600
16600
s
ns
20 ns
s
20 ms
s
200 ns
200 ns
200 ns
fOSC/64
Hz
s
200 ns
- 11 -
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet NJU3555.PDF ] | |
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