M38C88EA-XXXFP 데이터 시트보기 (PDF) - MITSUBISHI ELECTRIC

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M38C88EA-XXXFP

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

MITSUBISHI ELECTRIC  

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MITSUBISHI MICROCOMPUTERS

38C8 Group

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

DESCRIPTION

The 38C8 group is the 8-bit microcomputer based on the 740 family

core technology.

The 38C8 group has a LCD drive control circuit (bias control, time

sharing control), a 10-bit A-D converter, and a Serial I/O as additional

functions.

The various microcomputers in the 38C8 group include variations of

internal memory size and packaging. For details, refer to the section

on part numbering.

FEATURES

qBasic machine-language instructions ....................................... 71

qThe minimum instruction execution time ............................ 0.5 µs

(at 8 MHz oscillation frequency)

qMemory size

ROM ............................................................................ 60 K bytes

RAM ............................................................................ 2048 bytes

qProgrammable input/output ports ............................................. 35

qSoftware pull-up resistors

.................................................................. Ports P0–P3, P41–P47

qInterrupts ................................................... 15 sources, 15 vectors

(includes key input interrupt)

qTimers ............................................................ 8-bit ✕ 3, 16-bit ✕ 2

qSerial I/O ........................ 8-bit ✕ 1 (UART or Clock-synchronized)

qA-D converter (32 kHz operating available) ... 10-bit ✕ 8 channels

qLCD drive control circuit

Bias ................................................................................... 1/5, 1/7

Duty .............................................................................. 1/16, 1/32

Common output ............................................................... 16 or 32

Segment output ............................................................... 52 or 68

qMain clock generating circuit (RC oscillation selectable)

...................... (connect to external ceramic resonator or resistor)

qSub-clock generating circuit

............................................. (connect to quartz-crystal oscilaltor)

qPower source voltage

In high-speed mode .................................................... 4.0 to 5.5 V

In middle-speed mode ................................................ 2.2 to 5.5 V

In low-speed mode ..................................................... 2.2 to 5.5 V

qPower dissipation

In high-speed mode ........................................................... 30 mW

(at 8 MHz oscillation frequency, at 5 V power source voltage)

In low-speed mode ............................................................. 60 µW

(at 32 kHz oscillation frequency, at 3 V power source voltage, at

WIT state, at voltage multiplier operating, LCD drive waveform

generating state)

qOperating temperature range ................................... – 20 to 85°C

APPLICATIONS

Dot-matrix-type displays

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