NJU3503(1999) データシートの表示（PDF） - Japan Radio Corporation

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NJU3503
(Rev.:1999)

4-BIT SINGLE CHIP MICRO CONTROLLER

Japan Radio Corporation  

NJU3503

„# TERMINAL DESCRIPTION 2

No.

NJU NJU

3503M 3503L

12 11

13 12

14 13

15 14

16 15

17 16

19 17

20 18

21 19

SYMBOL INPUT/OUTPUT

FUNCTIONS

AIN4 / PE0

AIN5 / PE1

PE2

VSS

OSC1

OSC2

TEST

EXTI / PF0

CNTI / PF1

AIN4, AIN5:

3-bit Input / Output PORTE.

INPUT Selects a function of either of 1) or 2) for PORTE by the

mask option.

PE0 to PE2: 1) 2bit Analog Input to A/D Converter. : AIN4,AIN5 (AD)

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)

–

Power Source ( 0V )

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.

INPUT

Maker Testing Terminal with Pull-down Resistance

The terminal is recommended to connect to GND.

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.

xC-MOS Schmitt Trigger Input Terminal with

Pull-up Resistance (ISP)

xC-MOS Schmitt Trigger Input Terminal (IS)

22 20 SDO / PG0 SDO :OUTPUT 2-bit Input / Output PORTG.

PG0 :OUTPUT Selects a function of either of 1) or 2) for PORTG by the

mask option.

23 21 SDI(O)/ PG1 SDI(O) :INOUT 1) Serial Interface Function

PG1 :

Serial Data Output Terminal : SDO (SO)

INPUT/OUTPUT Serial Data Input-Output Terminal with Pull-up

Resistance : SDI(O) (SDP)

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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