4
NJU3503
,,#
TERMINAL DESCRIPTION 1
No.
NJU
3503M
NJU
3503L
SYMBOLS INPUT/OUTPUT
F U N C T I O N S
1
2
3
1
2
3
PB0
PB1
PB2
INPUT/OUTPUT
INPUT/OUTPUT
INPUT/OUTPUT
3-bit Input / Output PORTB.
Selects a terminal circuit for each port from follows by the
mask option.
x
C-MOS Schmitt Trigger Input Terminal with Pull-up
Resistance (ISP)
x
C-MOS Schmitt Trigger Input Terminal (IS)
x
C-MOS Output Terminal (OC)
When the ports are selected as the input terminal, PB0
operates also as RESTART signal input terminal to return
from STANDBY mode, and PB1 operates also as the Edge
Detector Terminal.
5
6
4
5
ADCK / PC0
V
REF
/ PC1
INPUT
INPUT
2-bit Input PORTC.
Selects a function of either of 1) or 2) for PORTC by the
mask option.
1) Input terminal for A/D Converter.
External Clock Input Terminal : ADCK (ACP,AC)
Reference Voltage Input Terminal : V
REF
(AD)
2) 2-bit Input Terminals as PORTC.
Selects a terminal circuit for each port from follows by the
mask option.
x
C-MOS Schmitt Trigger Input Terminal with Pull-up
Resistance (ISP)
x
C-MOS Schmitt Trigger Input Terminal (IS)
7 6
AV
DD
Analog Block Power source
Connect to V
DD
terminal when A/D converter is not used.
8
9
10
11
7
8
9
10
AIN0 / PD0
AIN1 / PD1
AIN2 / PD2
AIN3 / PD3
AIN0 to AIN3:
INPUT
PD0 to PD3:
INPUT/OUTPUT
4-bit Input PORTD.
Selects a function of either of 1) or 2) for PORTD by the
mask option.
1) 4-bit Analog Input to A/D Converter. (AD)
2) 4-bit Input / Output Terminals as PORTD.
Selects a terminal circuit for each port from follows by the
mask option.
x
C-MOS Input Terminal with Pull-up Resistance (ICP)
x
C-MOS Input Terminal (IC)
x
Nch-FET Open-Drain Output Terminal with Pull-up
Resistance (ONP)
x
Nch-FET Open-Drain Output Terminal (ON)
Note )
INPUT/OUTPUT : Input or Output is selected by the mask option.
INOUT
: Input or Output is changed by the program.
5
NJU3503
,,#
TERMINAL DESCRIPTION 2
No.
NJU
3503M
NJU
3503L
SYMBOL
INPUT/OUTPUT
F U N C T I O N S
12
13
14
11
12
13
AIN4 / PE0
AIN5 / PE1
PE2
AIN4, AIN5:
INPUT
PE0 to PE2:
INPUT/OUTPUT
3-bit Input / Output PORTE.
Selects a function of either of 1) or 2) for PORTE by the
mask option.
1) 2bit Analog Input to A/D Converter. : AIN4,AIN5 (AD)
2) 3-bit Input / Output Terminals as PORTE.
Selects a terminal circuit for each port from follows by the
mask option.
x
C-MOS Input Terminal with Pull-up Resistance (ICP)
x
C-MOS Input Terminal (IC)
x
Nch-FET Open-Drain Output Terminal with Pull-up
Resistance (ONP)
x
Nch-FET Open-Drain Output Terminal (ON)
15 14
V
SS
Power Source ( 0V )
16
17
15
16
OSC1
OSC2
INPUT
OUTPUT
Internal Oscillator Terminals.
Connects a device selected from the ceramic or the crystal
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.
19
17
TEST INPUT
Maker Testing Terminal with Pull-down Resistance
The terminal is recommended to connect to GND.
20
21
18
19
EXTI / PF0
CNTI / PF1
INPUT
INPUT
2-bit Input PORTF.
Selects a function of either of 1) or 2) for PORTF by the
mask option.
1) External Interrupt Input Terminal with Pull up
resistance :EXTI ( IIP,II, P / F )
External Clock Input Terminal with Pull up resistance
for Timer2 :CNTI (IIP,II)
2) 2-bit Input Terminals as PORTF.
Selects a terminal circuit for each port from follows by the
mask option.
x
C-MOS Schmitt Trigger Input Terminal with
Pull-up Resistance (ISP)
x
C-MOS Schmitt Trigger Input Terminal (IS)
22
23
20
21
SDO / PG0
SDI(O)/ PG1
SDO :OUTPUT
PG0 :OUTPUT
SDI(O) :INOUT
PG1 :
INPUT/OUTPUT
2-bit Input / Output PORTG.
Selects a function of either of 1) or 2) for PORTG by the
mask option.
1) Serial Interface Function
Serial Data Output Terminal : SDO (SO)
Serial Data Input-Output Terminal with Pull-up
Resistance : SDI(O) (SDP)
2) 2-bit Input / Output Terminals as PORTG.
Selects a terminal circuit for each port from follows by the
mask option.
x
C-MOS Input Terminal with Pull-up Resistance (ICP):PG1
x
C-MOS Input Terminal (IC) : PG1
x
C-MOS Output Terminal (OC) : PG0,PG1
Note )
INPUT/OUTPUT : Input or Output is selected by the mask option.
INOUT
: Input or Output is changed by the program.
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