
3803/3804 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
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
G
Basic machine-language instructions ...................................... 71
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Minimum instruction execution time ................................ 0.24
μ
s
(at 16.8 MHz oscillation frequency)
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Memory size
ROM ............................................................... 16 K to 60 K bytes
RAM................................................................. 640 to 2048 bytes
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Programmable input/output ports ............................................ 56
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Software pull-up resistors ................................................. Built-in
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Interrupts
21 sources, 16 vectors ...............................................3803 group
(external 8, internal 12, software 1)
23 sources, 16 vectors ...............................................3804 group
(external 9, internal 13, software 1)
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Timers ........................................................................... 16-bit
1
8-bit
4
(with 8-bit prescaler)
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Watchdog timer ............................................................ 16-bit
1
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Serial I/O...................... 8-bit
2 (UART or Clock-synchronized)
8-bit
1 (Clock-synchronized)
G
PWM ............................................8-bit
1 (with 8-bit prescaler)
G
I
2
C-BUS interface (3804 group only) ........................... 1 channel
G
A-D converter ............................................. 10-bit
16 channels
(8-bit reading enabled)
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D-A converter ................................................. 8-bit
2 channels
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LED direct drive port .................................................................. 8
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Clock generating circuit..................................... Built-in 2 circuits
(connect to external ceramic resonator or quartz-crystal oscillator)
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Power 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
In low-speed mode
At 32 kHz oscillation frequency.............................. 2.7 to 5.5 V
(
This value of flash memory version is 4.0 to 5.5 V.)
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Power 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
μ
W (typ.)
(at 32 kHz oscillation frequency, at 3 V power source voltage)
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Operating temperature range....................................–20 to 85°C
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Packages
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>
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Supply voltage................................................. V
CC
= 5 V ± 10 %
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Program/Erase voltage ........................... V
PP
= 11.7 V to 12.6 V
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Programming method...................... Programming in unit of byte
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Erasing method
Batch erasing ........................................ Parallel/Serial I/O mode
Block erasing.................................... CPU reprogramming mode
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Program/Erase control by software command
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Number of times for programming/erasing ............................ 100
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Operating temperature range (at programming/erasing) ...........
........................................................................Room temperature
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Notes
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.