NJU3503
„#
TERMINAL DESCRIPTION 1
No.
NJU
3503M
NJU
3503L
SYMBOLS
PB0
PB1
PB2
INPUT/OUTPUT
FUNCTIONS
1
2
3
1
2
3
5
6
4
5
INPUT/OUTPUT 3-bit Input / Output PORTB.
INPUT/OUTPUT Selects a terminal circuit for each port from follows by the
INPUT/OUTPUT mask option.
xC-MOS
Schmitt Trigger Input Terminal with Pull-up
Resistance (ISP)
xC-MOS
Schmitt Trigger Input Terminal (IS)
xC-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.
2-bit Input PORTC.
INPUT
ADCK / PC0
Selects a function of either of 1) or 2) for PORTC by the
INPUT
V
REF
/ PC1
mask option.
1) Input terminal for A/D Converter.
External Clock Input Terminal
: ADCK (ACP,AC)
(AD)
Reference Voltage Input Terminal : V
REF
2) 2-bit Input Terminals as PORTC.
Selects a terminal circuit for each port from follows by the
mask option.
xC-MOS
Schmitt Trigger Input Terminal with Pull-up
Resistance
(ISP)
xC-MOS
Schmitt Trigger Input Terminal (IS)
AV
DD
Analog Block Power source
–
Connect to V
DD
terminal when A/D converter is not used.
4-bit Input PORTD.
AIN0 / PD0 AIN0 to AIN3:
AIN1 / PD1
INPUT Selects a function of either of 1) or 2) for PORTD by the
mask option.
AIN2 / PD2
1) 4-bit Analog Input to A/D Converter. (AD)
AIN3 / PD3 PD0 to PD3:
INPUT/OUTPUT
2) 4-bit Input / Output Terminals as PORTD.
Selects a terminal circuit for each port from follows by the
mask option.
xC-MOS
Input Terminal with Pull-up Resistance (ICP)
xC-MOS
Input Terminal (IC)
xNch-FET
Open-Drain Output Terminal with Pull-up
Resistance (ONP)
xNch-FET
Open-Drain Output Terminal (ON)
INPUT/OUTPUT : Input or Output is selected by the mask option.
INOUT
: Input or Output is changed by the program.
7
8
9
10
11
6
7
8
9
10
Note )
4
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
15
16
17
14
15
16
19
20
21
17
18
19
3-bit Input / Output PORTE.
AIN4 / PE0 AIN4, AIN5:
AIN5 / PE1
INPUT Selects a function of either of 1) or 2) for PORTE by the
mask option.
PE2
1) 2bit Analog Input to A/D Converter. : AIN4,AIN5 (AD)
PE0 to PE2:
INPUT/OUTPUT 2) 3-bit Input / Output Terminals as PORTE.
Selects a terminal circuit for each port from follows by the
mask option.
xC-MOS
Input Terminal with Pull-up Resistance (ICP)
xC-MOS
Input Terminal (IC)
xNch-FET
Open-Drain Output Terminal with Pull-up
Resistance (ONP)
xNch-FET
Open-Drain Output Terminal (ON)
V
SS
Power Source ( 0V )
–
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.
Maker Testing Terminal with Pull-down Resistance
TEST
INPUT
The terminal is recommended to connect to GND.
2-bit Input PORTF.
EXTI / PF0
INPUT
Selects a function of either of 1) or 2) for PORTF by the
CNTI / PF1
INPUT
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.
xC-MOS
Schmitt Trigger Input Terminal with
Pull-up Resistance (ISP)
xC-MOS
Schmitt Trigger Input Terminal (IS)
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)
22
20
SDO
/ PG0 SDO :OUTPUT
PG0 :OUTPUT
23
21
SDI(O)/ PG1 SDI(O) :INOUT
PG1 :
INPUT/OUTPUT
Note )
2) 2-bit Input / Output Terminals as PORTG.
Selects a terminal circuit for each port from follows by the
mask option.
xC-MOS
Input Terminal with Pull-up Resistance (ICP):PG1
xC-MOS
Input Terminal
(IC) : PG1
xC-MOS
Output Terminal (OC) : PG0,PG1
INPUT/OUTPUT : Input or Output is selected by the mask option.
INOUT
: Input or Output is changed by the program.
5
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