MSM6408 データシートの表示（PDF） - Oki Electric Industry

部品番号

コンポーネント説明

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MSM6408

High speed and High performance 4-Bit Microcontroller

Oki Electric Industry 

¡ Semiconductor

MSM6408

PIN DESCRIPTIONS

Symbol

P0.0

P0.1/SCK

P0.2/SO

P0.3/SI

P1.0/CIN

P1.1/TMO

P1.2/TCK

P1.3

P2.0/INT

P2.1

P2.2

P2.3

P3.0 to 3.3

P4.0 to 4.3

P5.0 to 5.3

P6.0 to 6.3

P7.0 to 7.3

P8.0 to 8.3

OSC0

OSC1

TEST

Type

Description

P0.1 is shared with serial clock (SLK) input/output.

I/O

P0.2 is shared with serial data (SO) output.

P0.3 is shared with serial data (SI) input.

P1.0 is shared with counter input (CIN).

P1.1 is shared with timer output (TMO).

I/O

P1.2 is shared with timer clock input (TCK).

P2.0 is shared with external interrupt input (INT).

I

Input ports with a latch, with built-in pull-up resistor.

I/O

—

I/O

—

I/O

—

I/O

—

I/O

—

I/O

—

I

Crystal connection pins for clock oscillation.

O

O

(Test pin for manufacturer)

During reset

"1"

"1"

The latch is

reset.

"1"

"0"

"0"

"0"

"0"

"0"

Oscillation

waveform

Pulse output

RESET

I

Input pin for system reset.

—

VDD

— Power supply voltage pins.

—

GND

Note: 1. The pins except for pins P2.0 to P2.3 are pseudo bidirectional ports.

2. When each port is used for output, the MSM6408 can drive one TTL (one input).

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