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
2
C bus interface can be added by option.
FEATURES
<Microcomputer mode>
G
Basic machine-language instructions ...................................... 71
G
Minimum instruction execution time .................................. 0.4
μ
s
(at 10 MHz oscillation frequency)
G
Memory size
ROM ................................................................. 32K to 60K bytes
RAM ............................................................... 1024 to 2048 bytes
G
Programmable input/output ports ............................................ 72
G
Software pull-up resistors ................................................. Built-in
G
Interrupts ................................................. 21 sources, 16 vectors
(Included key input interrupt)
G
Timers ............................................................................. 8-bit
4
G
Serial I/O1 .................... 8-bit
1(UART or Clock-synchronized)
G
Serial I/O2 ................................... 8-bit
1(Clock-synchronized)
G
PWM output circuit ....................................................... 14-bit
2
G
Bus interface .................................................................... 2 bytes
G
I
2
C bus interface (option) ............................................. 1 channel
G
A-D converter ............................................... 10-bit
8 channels
G
D-A converter ................................................. 8-bit
2 channels
G
Comparator circuit ...................................................... 8 channels
G
Watchdog timer ............................................................ 16-bit
1
G
Clock generating circuit..................................... Built-in 2 circuits
(connect to external ceramic resonator or quartz-crystal oscillator)
G
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
G
Power dissipation
In high-speed mode ..........................................................40 mW
(at 10 MHz oscillation frequency, at 5 V power source voltage)
In low-speed mode ............................................................ 60
μ
W
(at 32 kHz oscillation frequency, at 3 V power source voltage)
G
Memory expansion possible (only for M38867M8A/E8A)
G
Operating temperature range....................................–20 to 85°C
<Flash memory mode>
G
Supply voltage................................................. V
CC
= 5 V ± 10 %
G
Program/Erase voltage ............................... V
PP
= 11.7 to 12.6 V
G
Programming method...................... Programming in unit of byte
G
Erasing method
Batch erasing ........................................ Parallel/Serial I/O mode
Block erasing .................................... CPU reprogramming mode
G
Program/Erase control by software command
G
Number of times for programming/erasing ............................ 100
G
Operating temperature range (at programming/erasing)
..................................................................... Normal temperature
I
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