NJU3505
n
TERMINAL DESCRIPTION 1
No.
NJU
NJU
SYMBOL
PF0
PF1
PF2
INPUT/OUTPUT
FUNCTIONS
3505F 3505L
44
1
2
5
6
7
3
4
X
X
5
6
8
9
7
8
9
10
10
11
12
13
11
12
14
15
Note )
INPUT/OUTPUT 3-bit Input / Output PORTF.
INPUT/OUTPUT Selects a terminal circuit for each port from follows by the
INPUT/OUTPUT mask option.
·C-MOS
Schmitt Trigger Input Terminal with Pull-up
Resistance (ISP)
·C-MOS
Schmitt Trigger Input Terminal (IS)
·C-MOS
Output Terminal (OC)
PG0
INPUT/OUTPUT
2-bit Input / Output PORTG.
PG1
INPUT/OUTPUT Selects a terminal circuit for each port from follows by the
mask option.
·C-MOS
Schmitt Trigger Input Terminal with Pull-up
Resistance (ISP)
·C-MOS
Schmitt Trigger Input Terminal (IS)
·C-MOS
Output Terminal (OC)
PH0
INPUT/OUTPUT
2-bit Input / Output PORTH.
PH1
INPUT/OUTPUT Selects a terminal circuit for each port from follows by the
mask option.
·C-MOS
Schmitt Trigger Input Terminal with Pull-up
Resistance (ISP)
·C-MOS
Schmitt Trigger Input Terminal (IS)
·C-MOS
Output Terminal (OC)
When the ports are selected as the input terminal, PH0
operates also as RESTART signal input terminal to return
from STANDBY mode, and PH1 operates also as the Edge
Detector Terminal.
RESET Terminal.
INPUT
RESET
When the low level input-signal, the system is initialized.
Maker Testing Terminal with Pull-down Resistance
TEST
INPUT
The terminal is recommended to connect to GND.
Internal Oscillator Terminals.
OSC1
INPUT
Connects a device selected from the ceramic or the crystal
OSC2
OUTPUT
resonator, or the resistor, to these terminals for the internal
oscillator.
In the external clock operation, OSC1 is the external clock
input terminal and OSC2 is normally open terminal.
V
SS
Power Source ( 0V )
–
AV
SS
Analog Block Power Source ( 0V )
–
Connects to V
SS
terminal when A/D converter is not used.
INPUT/OUTPUT : Input or Output is selected by the mask option.
INOUT
: Input or Output is changed by the program.
X
: No terminals in the
NJU3505L(SDIP
package).
NJU3505
n
TERMINAL DESCRIPTION 2
No.
NJU
NJU
SYMBOL
AIN0
AIN1
AIN2
AIN3
/
/
/
/
PI0
PI1
PI2
PI3
INPUT/OUTPUT
INPUT
INPUT
INPUT
INPUT
F U N C T I O N
4-bit Input PORTI.
Selects a function of either of 1) or 2) for PORTI by the
mask option.
1) 4-bit Analog Input to A/D Converter. (AD)
2) 4-bit Input Terminals as PORTI.
Selects a terminal circuit for each port from follows by the
mask option.
·C-MOS
Input Terminal with Pull-up Resistance (ICP)
·C-MOS
Input Terminal (IC)
Analog Block Power source
Connect to V
DD
terminal when A/D converter is not used.
2-bit Input PORTJ.
Selects a function of either of 1) or 2) for PORTJ by the
mask option.
1) Input terminal for A/D Converter.
Reference Voltage Input Terminal : V
REF
(AD)
External Clock Input Terminal : ADCK
(AD)
2) 2-bit Input Terminals as PORTJ.
Selects a terminal circuit for each port from follows by the
mask option.
·C-MOS
Schmitt Trigger Input Terminal with Pull-up
Resistance
(ISP)
·C-MOS
Schmitt Trigger Input Terminal (IS)
2-bit Input PORTK.
Selects a function of either of 1) or 2) for PORTK by the
mask option.
1) External Interrupt Input Terminal with Pull up
resistance :EXTI
(R/F)
External Clock Input Terminal with Pull up resistance for
Timer2 :CNTI
(IIP,II)
2) 2-bit Input Terminals as PORTK.
Selects a terminal circuit for each port from follows by
the mask option.
·C-MOS
Schmitt Trigger Input Terminal with Pull-up
Resistance (ISP)
·C-MOS
Schmitt Trigger Input Terminal (IS)
3505F 3505L
13
14
15
16
16
17
18
19
18
17
19
21
20
22
AV
DD
V
REF
/ PJ0
ADCK / PJ1
–
INPUT
INPUT
20
21
23
24
EXTI / PK0
CNTI / PK1
INPUT
INPUT
22
23
25
26
SDO
Note )
2-bit Input / Output PORTL.
/ PL0 SDO :OUTPUT
Selects a function of either of 1) or 2) for PORTL by the
PL0 :OUTPUT
SDI(O) / PL1 SDI(O) :INOUT mask option.
1) Serial Interface Function
PL1 :
Serial Data Output Terminal : SDO (SO)
INPUT/OUTPUT
Serial Data Input-Output Terminal with Pull-up
Resistance : SDI(O)
(SDP)
2) 2-bit Input / Output Terminals as PORTL.
Selects a terminal circuit for each port from follows by the
mask option.
·C-MOS
Input Terminal with Pull-up Resistance (ICP):PL1
·C-MOS
Input Terminal
(IC) : PL1
·C-MOS
Output Terminal (OC) : PL0,PL1
INPUT/OUTPUT : Input or Output is selected by the mask option.
INOUT
: Input or Output is changed by the program.
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