NJU3504 datasheet(6/62 Pages) NJRC

Part #	NJU3504

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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NJU3504

„# TERMINAL DESCRIPTION 3

No.

NJU

3504F

NJU

3504L

SYMBOL

INPUT/OUTPUT

F U N C T I O N

24

27

SCK /

CKOUT

SCK

:INOUT

CKOUT :

OUTPUT

Selects a function of either of 1) or 2) by the mask option.

1) Serial Clock Input or Output Terminal with Pull-up

Resistance.

2) Clock Divided by Pre-scaler Output Terminal.

Selects the dividing times of the clock in the pre-scaler by

the mask option.

25

26

27

28

29

30

31

PA0

PA1

PA2

PA3

INOUT

4-bit Programmable Input / Output PORTA.

These 4-bit terminals’ direction can be changed by the

program as 4-Input or 4-Output.

Use of Pull-up resistance is in accordance with the mask

option.

xas Input : C-MOS Input Terminals

xas Output: Nch-FET Open-Drain Output Terminals

29

30

31

32

33

34

35

PB0

PB1

PB2

PB3

INOUT

4-bit Programmable Input / Output PORTB.

These 4-bit terminals’ direction can be changed by the

program as 4-Input or 4-Output.

Use of Pull-up resistance is in accordance with the mask

option.

xas Input : C-MOS Input Terminals

xas Output: Nch-FET Open-Drain Output Terminals

33

36

VDD

–

Power Source (2.4V to 5.5V)

34

35

37

38

PC0

PC1

INPUT/OUTPUT

2-bit Input / Output PORTC.

Selects a terminal circuit for each port from follows by the

mask option.

xC-MOS Input Terminal with Pull-up Resistance(IA)

xC-MOS Input Terminal(IC)

xNch-FET Open-Drain Output Terminal with Pull-up

Resistance(OA)

xNch-FET Open-Drain Output Terminal(OC)

36

37

38

39

40

41

42

PD0

PD1

PD2

PD3

INPUT/OUTPUT

4-bit Input / Output PORTD.

Selects a terminal circuit for each port from follows by the

mask option.

xC-MOS Input Terminal with Pull-up Resistance(IA)

xC-MOS Input Terminal(IC)

xC-MOS Output Terminal(OB)

40

41

42

43

1

2

3

4

PE0

PE1

PE2

PE3

INPUT/OUTPUT

4-bit Input / Output PORTE.

Selects a terminal circuit for each port from follows by the

mask option.

xC-MOS Input Terminal with Pull-up Resistance(IA)

xC-MOS Input Terminal(IC)

xC-MOS Output Terminal(OB)

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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