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M38748EFT-XXXFS Datasheet

  • M38748EFT-XXXFS

  • SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

  • 1282.72KB

  • 92頁

  • MITSUBISHI   MITSUBISHI

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MITSUBISHI MICROCOMPUTERS
3874 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
DESCRIPTION
The 3874 group is the 8-bit microcomputer based on the 740 fam-
ily core technology.
The 3874 group includes data link layer communication control cir-
cuit, A-D converters, D-A converter, automatic data transfer serial
I/O, UART, and watchdog timer etc.
The various microcomputers in the 3874 group include variations
of internal memory size and packaging. For details, refer to the
section on part numbering.
For details on availability of microcomputers in the 3874 group, re-
fer to the section on group expansion.
FEATURES
qBasic
machine-language instructions ...................................... 71
qMinimum
instruction execution time ................................. 0.32
碌s
(at 6.4 MHz oscillation frequency, in double-speed mode)
qMemory
size
ROM ............................................................... 16 K to 60 K bytes
RAM ............................................................... 1024 to 2048 bytes
qProgrammable
input/output ports ............................................ 72
qInput
port .................................................................................... 1
qInterrupts
................................................. 27 sources, 16 vectors
(Interrupt source discrimination register exists, included key in-
put interrupt)
qTimer
1, timer 2, timer 3 ................................................. 8-bit
!
3
qTimer
X, timer Y............................................................ 16-bit
!
2
qSerial
I/O1 .................... 8-bit
!
1(UART or Clock-synchronized)
qSerial
I/O2 ................................... 8-bit
!
1(Clock-synchronized)
qSerial
I/O3 ...................................................................... 8-bit
!
1
(Clock-synchronized automatic data transfer/arbitrary bit trans-
fer function available)
qA-D
converter ................................................. 8-bit
!
8 channels
qD-A
converter ................................................... 8-bit
!
1 channel
qData
link layer communication control circuit ............................ 1
qClock
generating circuit ..................................... Built-in 2 circuits
(connect to external ceramic resonator or quartz-crystal oscillator)
qWatchdog
timer ............................................................ 20-bit
!
1
qPower
source voltage ................................................ 3.0 to 5.5 V
qPower
dissipation
In double-speed mode ...................................................... 90 mW
In high-speed mode .......................................................... 60 mW
(at 32 kHz oscillation frequency, at 5 V power source voltage)
In low-speed mode .......................................................... 180
碌W
(at 32 kHz oscillation frequency, at 3 V power source voltage)
qOperating
temperature range .................................... 鈥?0 to 85擄C
(Extended operating temperature version and automotive ver-
sion)
APPLICATION
Automotive comfort control for audio system, air conditioning etc.,
automotive body electronics control, household appliances, and
other consumer applications, etc.

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