MSM64481-014GS-2K-H 查看數據表（PDF） - Oki Electric Industry

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MSM64481-014GS-2K-H

Built-in 512-Bit EEPROM and LCD Driver 4-Bit Microcontroller

Oki Electric Industry 

¡ Semiconductor

MSM64481

PIN DESCRIPTIONS

Function

Power

supply

Ground

Control

Ports

Display

drivers

Oscillation

Symbol

VDD1

VDD2

GND

RESET

TEST

P0.0

P0.1

P0.2

P1.0

P1.1

P1.2

P1.3

P2.0

P2.1

P2.2

P2.3

COM1

COM2

SEG1

to

SEG40

OSC1

Type

—

—

—

I

I

I

I

I

Description

—

Power supply for driving the LCD drivers

Ground

System reset input pin. When this pin is set "L", the internal state is

initialized. This pin contains a built-in pull-up resistor.

Pin for IC testing

Input port. Also used for external interrupt.

Input port. Also used for external interrupt.

Input port for detecting external voltage

I/O I/O port

I/O I/O port

O

LCD common driving outputs

O

O LCD segment driving outputs

I

RC oscillator pin (for an external capacitor C)

5/12

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