M38B79MFH-A154FP datasheet, PDF

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M38B79MFH-A154FP: DescriptionSINGLE-CHIP 8-BIT CMOS MICROCOMPUTER; File Size1MB，109 Pages; ManufacturerMitsubishi; Websitehttp://www.mitsubishielectric.com/semiconductors/

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M38B79MFH-A154FP Overview

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

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38B7 Group

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

DESCRIPTION

The 38B7 group is the 8-bit microcomputer based on the 740 family

core technology.

The 38B7 group has six 8-bit timers, one 16-bit timer, a fluorescent

display automatic display circuit, 16-channel 10-bit A-D converter, a

serial I/O with automatic transfer function, which are available for

controlling musical instruments and household appliances.

The 38B7 group has variations of internal memory type. For details,

refer to the section on part numbering.

For details on availability of microcomputers in the 38B7 group, refer

to the section on group expansion.

Built-in pull-down resistors connected to high-breakdown voltage ports

are available by specifying with the mask option in the mask ROM

version. For the details, refer to the section on the mask option of

pull-down resistor.

•

Power dissipation

In high-speed mode .......................................................... 35 mW

(at 4.19 MHz oscillation frequency)

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

µW

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

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

FEATURES

Basic machine-language instructions ....................................... 71

The minimum instruction execution time .......................... 0.48

µs

(at 4.19 MHz oscillation frequency)

Memory size

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

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

Programmable input/output ports ............................................. 75

High-breakdown-voltage output ports ...................................... 52

Software pull-up resistors . (Ports P6

to P6

, P7, P8

to P8

, P9,

PA, PB)

Interrupts .................................................. 22 sources, 16 vectors

Timers ........................................................... 8-bit

6, 16-bit

Serial I/O1 (Clock-synchronized) ................................... 8-bit

(max. 256-byte automatic transfer function)

Serial I/O2 (UART or Clock-synchronized) .................... 8-bit

Serial I/O3 (Clock-synchronized) ................................... 8-bit

PWM ............................................................................ 14-bit

8-bit

1 (also functions as timer 6)

A-D converter .............................................. 10-bit

16 channels

D-A converter ................................................................ 1 channel

Fluorescent display function ......................... Total 56 control pins

Interrupt interval determination function ..................................... 1

(Serviceable even in low-speed mode)

Watchdog timer ............................................................ 16-bit

Buzzer output ............................................................................. 1

Two clock generating circuits

Main clock (X

–X

OUT

) .......................... Internal feedback resistor

Sub-clock (X

CIN

–X

COUT

) .......... Without internal feedback resistor

(connect to external ceramic resonator or quartz-crystal oscillator)

Power source voltage

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

(at 4.19 MHz oscillation frequency and high-speed selected)

In middle-speed mode ........................................... 2.7 to 5.5 V (*)

(at 4.19 MHz oscillation frequency and middle-speed selected)

In low-speed mode ................................................ 2.7 to 5.5 V (*)

(at 32 kHz oscillation frequency)

(*: 4.0 to 5.5 V for Flash memory version)

•

qSupply

voltage ................................................. V

= 5 V ± 10 %

qProgram/Erase

voltage ............................... V

= 11.7 to 12.6 V

qProgramming

method ...................... Programming in unit of byte

qErasing

method

Batch erasing ........................................ Parallel/Serial I/O mode

Block erasing .................................... CPU reprogramming mode

qProgram/Erase

control by software command

qNumber

of times for programming/erasing ............................ 100

qOperating

temperature range (at programming/erasing)

..................................................................... Normal temperature

sNotes

1. The flash memory version cannot be used for application em-

bedded in the MCU card.

2. Power source voltage Vcc of the flash memory version is 4.0

to 5.5 V.

APPLICATION

Musical instruments, VCR, household appliances, etc.

•

M38B79MFH-A154FP Related Products

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