NJU3503 datasheet(5/59 Pages) NJRC

Part #	NJU3503

Description	4-BIT SINGLE CHIP MICRO CONTROLLER???

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Manufacturer	NJRC [New Japan Radio]

Direct Link	http://www.jrc.co.jp/eng/index.html

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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.

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)

15

14

VSS

–

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

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

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.

xC-MOS Input Terminal with Pull-up Resistance (ICP):PG1

xC-MOS Input Terminal

(IC)

: PG1

xC-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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