MITSUBISHI MICROCOMPUTERS
3803/3804 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
DESCRIPTION
The 3803/3804 group is the 8-bit microcomputer based on the 740
family core technology.
The 3803/3804 group is designed for household products, office
automation equipment, and controlling systems that require ana-
log signal processing, including the A-D converter and D-A
converters.
The 3804 group is the version of the 3803 group to which an I
2
C-
BUS control function has been added.
FEATURES
qBasic
machine-language instructions ...................................... 71
qMinimum
instruction execution time ................................ 0.24
µs
(at 16.8 MHz oscillation frequency)
qMemory
size
ROM ............................................................... 16 K to 60 K bytes
RAM ................................................................. 640 to 2048 bytes
qProgrammable
input/output ports ............................................ 56
qSoftware
pull-up resistors ................................................. Built-in
qInterrupts
21 sources, 16 vectors ............................................... 3803 group
(external 8, internal 12, software 1)
23 sources, 16 vectors ............................................... 3804 group
(external 9, internal 13, software 1)
qTimers
........................................................................... 16-bit
✕
1
8-bit
✕
4
(with 8-bit prescaler)
qWatchdog
timer ............................................................ 16-bit
✕
1
qSerial
I/O ...................... 8-bit
✕
2 (UART or Clock-synchronized)
8-bit
✕
1 (Clock-synchronized)
qPWM
............................................ 8-bit
✕
1 (with 8-bit prescaler)
qI
2
C-BUS interface (3804 group only) ........................... 1 channel
qA-D
converter ............................................. 10-bit
✕
16 channels
(8-bit reading enabled)
qD-A
converter ................................................. 8-bit
✕
2 channels
qLED
direct drive port .................................................................. 8
qClock
generating circuit ..................................... Built-in 2 circuits
(connect to external ceramic resonator or quartz-crystal oscillator)
qPower
source voltage
In high-, middle-speed mode
At 16.8 MHz oscillation frequency ............................ 4.5 to 5.5 V
At 12.5 MHz oscillation frequency ............................ 4.0 to 5.5 V
At 8.38 MHz oscillation frequency) ........................ 2.7 to 5.5 V
½
In low-speed mode
At 32 kHz oscillation frequency .............................. 2.7 to 5.5 V
½
(½ This value of flash memory version is 4.0 to 5.5 V.)
qPower
dissipation
In high-speed mode ................................................ 60 mW (typ.)
(at 16.8 MHz oscillation frequency, at 5 V power source voltage)
In low-speed mode ................................................... 60
µW
(typ.)
(at 32 kHz oscillation frequency, at 3 V power source voltage)
qOperating
temperature range .................................... –20 to 85°C
qPackages
SP .................................................. 64P4B (64-pin 750 mil SDIP)
FP ....................................... 64P6N-A (64-pin 14
✕
14 mm QFP)
HP ..................................... 64P6Q-A (64-pin 10
✕
10 mm LQFP)
<Flash memory mode>
qSupply
voltage ................................................. V
CC
= 5 V ± 10 %
qProgram/Erase
voltage ........................... V
PP
= 11.7 V 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
q
Operating temperature range (at programming/erasing) ...........
........................................................................ Room temperature
sNotes
1. The flash memory version cannot be used for application em-
bedded in the MCU card.
2. Supply voltage Vcc of the flash memory version is 4.0 to 5.5
V.
Embedded System
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