NJU3503(1999) データシートの表示（PDF） - Japan Radio Corporation
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NJU3503 Datasheet PDF : 59 Pages
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NJU3503
„# TERMINAL DESCRIPTION 1
No.
NJU NJU
3503M 3503L
1
1
2
2
3
3
5
4
6
5
SYMBOLS INPUT/OUTPUT
FUNCTIONS
PB0
INPUT/OUTPUT 3-bit Input / Output PORTB.
PB1
INPUT/OUTPUT Selects a terminal circuit for each port from follows by the
PB2
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.
ADCK / PC0
INPUT
2-bit Input PORTC.
VREF / PC1
INPUT
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 : VREF (AD)
7
6
8
7
9
8
10 9
11 10
Note )
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)
AVDD
–
Analog Block Power source
Connect to VDD terminal when A/D converter is not used.
AIN0 / PD0
AIN1 / PD1
AIN2 / PD2
AIN3 / PD3
AIN0 to AIN3: 4-bit Input PORTD.
INPUT Selects a function of either of 1) or 2) for PORTD by the
mask option.
PD0 to PD3: 1) 4-bit Analog Input to A/D Converter. (AD)
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.
4
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