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DESCRIPTION

The 3886 group is the 8-bit microcomputer based on the 740 fam-

ily core technology.

The 3886 group is designed for controlling systems that require

analog signal processing and include two serial I/O functions, A-D

converters, D-A converters, system data bus interface function,

watchdog timer, and comparator circuit.

The multi-master I

C bus interface can be added by option.

FEATURES

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

●Minimum instruction execution time .................................. 0.4 µs

(at 10 MHz oscillation frequency)

●Memory size

ROM ................................................................. 32K to 60K bytes

RAM ............................................................... 1024 to 2048 bytes

●Programmable input/output ports ............................................ 72

●Software pull-up resistors ................................................. Built-in

●Interrupts ................................................. 21 sources, 16 vectors

(Included key input interrupt)

●Timers ............................................................................. 8-bit ✕ 4

●Serial I/O1 .................... 8-bit ✕ 1(UART or Clock-synchronized)

●Serial I/O2 ................................... 8-bit ✕ 1(Clock-synchronized)

●PWM output circuit ....................................................... 14-bit ✕ 2

●Bus interface .................................................................... 2 bytes

●I

C bus interface (option) ............................................. 1 channel

●A-D converter ............................................... 10-bit ✕ 8 channels

●D-A converter ................................................. 8-bit ✕ 2 channels

●Comparator circuit ...................................................... 8 channels

●Watchdog timer ............................................................ 16-bit ✕ 1

●Clock generating circuit ..................................... Built-in 2 circuits

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

●Power source voltage

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

(at 10 MHz oscillation frequency)

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

(at 10 MHz oscillation frequency)

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)

3886 Group

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

MITSUBISHI MICROCOMPUTERS

●Power dissipation

In high-speed mode ..........................................................40 mW

(at 10 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)

●Memory expansion possible (only for M38867M8A/E8A)

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

●Supply voltage ................................................. VCC = 5 V ± 10 %

●Program/Erase voltage ............................... VPP = 11.7 to 12.6 V

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

●Erasing method

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

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

●Program/Erase control by software command

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

●Operating temperature range (at programming/erasing)

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

■Notes

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

Household product, consumer electronics, communications, note

book PC, etc.

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