NJU3505L 查看數據表（PDF） - Japan Radio Corporation

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NJU3505L

4-BIT SINGLE CHIP MICRO CONTROLLER

Japan Radio Corporation  

NJU3505

s TERMINAL DESCRIPTION 1

No.

NJU NJU

SYMBOL INPUT/OUTPUT

FUNCTIONS

3505F 3505L

44 5

16

27

PF0

INPUT/OUTPUT 3-bit Input / Output PORTF.

PF1

INPUT/OUTPUT Selects a terminal circuit for each port from the following

PF2

INPUT/OUTPUT by the mask option.

•C-MOS Schmitt Trigger Input Terminal with Pull-up

Resistance (ISP)

•C-MOS Schmitt Trigger Input Terminal (IS)

•C-MOS Output Terminal (OC)

3X

PG0

INPUT/OUTPUT 2-bit Input / Output PORTG.

4X

PG1

INPUT/OUTPUT Selects a terminal circuit for each port from the following

by the mask option.

•C-MOS Schmitt Trigger Input Terminal with Pull-up

Resistance (ISP)

•C-MOS Schmitt Trigger Input Terminal (IS)

•C-MOS Output Terminal (OC)

58

PH0

INPUT/OUTPUT 2-bit Input / Output PORTH.

69

PH1

INPUT/OUTPUT Selects a terminal circuit for each port from the following

by the mask option.

•C-MOS Schmitt Trigger Input Terminal with Pull-up

Resistance (ISP)

•C-MOS Schmitt Trigger Input Terminal (IS)

•C-MOS Output Terminal (OC)

When the ports are selected as the input terminal, PH0

operates also as RESTART signal input terminal to return

from STANDBY mode, and PH1 operates also as the Edge

Detector Terminal.

7 10

RESET

INPUT

RESET Terminal.

When the low level input-signal, the system is initialized.

8 11

TEST

INPUT

Maker Testing Terminal with Pull-down Resistance

The terminal is recommended to connect to GND.

9 12

10 13

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.

11 14

VSS

–

Power Source ( 0V )

12 15

AVSS

–

Analog Block Power Source ( 0V )

Connects to VSS terminal when A/D converter is not used.

Note ) INPUT/OUTPUT : Input or Output is selected by the mask option.

INOUT : Input or Output is changed by the program.

X

: No terminals in the NJU3505L(SDIP package).

-4-

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