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

!" MASK OPTION

The NJU3503 can set or select the following options by the mask option as same as the mask of

program coding in ROM.

1) INPUT OUTPUT Terminal Selection

All of input-output terminals select a type for each port from the following table1 to table2 by the mask option.

[ CIRCUIT TYPE TABLE 1 ]

TERMINAL TYPES

SYMBOL

Input/ Output

Terminal *1

EXTRA FUNCTION

REMARKS

PA0

PA1

PA2

PA3

PB0

PB1

PB2

ADCK / PC0

VREF / PC1

AIN0 / PD0

AIN1 / PD1

AIN2 / PD2

AIN3 / PD3

AIN4 / PE0

AIN5 / PE1

PE2

IOP

IO

IOP

IO

IOP

IO

IOP

IO

ISP OC

IS

ISP OC

IS

Restart signal input

Edge detector

ISP OC

IS

ISP

IS

ISP

IS

ICP ONP

IC ON

ICP ONP

IC ON

ICP ONP

IC ON

ICP ONP

IC ON

ICP ONP

IC ON

ICP ONP

IC ON

ICP ONP

IC ON

ACP External clock input

AC

AD Reference input

AD Analog input (AIN0)

AD Analog input (AIN1)

AD Analog input (AIN2)

AD Analog input (AIN3)

AD Analog input (AIN4)

AD Analog input (AIN5)

E Restart signal input

D Not Restart

R Rising edge detector

F Falling edge detector

D Not edge detector

Note) “IOP, IO, ISP, IS, OC, ICP, IC, ONP, ON, ACP, AC, AD, R, F, D” are symbols using on MASK

OPTIONGENERATOR(MOG).

*1) The symbol and the detail circuits of INPUT OUTPUT TERMINAL are written in INPUT OUTPUT

TERMINAL TYPE.

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