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M38C80EA-XXXFP Datasheet

  • M38C80EA-XXXFP

  • SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

  • 51頁(yè)

  • MITSUBISHI   MITSUBISHI

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MITSUBISHI MICROCOMPUTERS
38C8 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
DESCRIPTION
The 38C8 group is the 8-bit microcomputer based on the 740 family
core technology.
The 38C8 group has a LCD drive control circuit (bias control, time
sharing control), a 10-bit A-D converter, and a Serial I/O as additional
functions.
The various microcomputers in the 38C8 group include variations of
internal memory size and packaging. For details, refer to the section
on part numbering.
FEATURES
qBasic
machine-language instructions ....................................... 71
qThe
minimum instruction execution time ............................ 0.5
碌s
(at 8 MHz oscillation frequency)
qMemory
size
ROM ............................................................................ 60 K bytes
RAM ............................................................................ 2048 bytes
qProgrammable
input/output ports ............................................. 35
qSoftware
pull-up resistors
.................................................................. Ports P0鈥揚(yáng)3, P4
1
鈥揚(yáng)4
7
qInterrupts
................................................... 15 sources, 15 vectors
(includes key input interrupt)
qTimers
............................................................ 8-bit
鉁?/div>
3, 16-bit
鉁?/div>
2
qSerial
I/O ........................ 8-bit
鉁?/div>
1 (UART or Clock-synchronized)
qA-D
converter (32 kHz operating available) ... 10-bit
鉁?/div>
8 channels
qLCD
drive control circuit
Bias ................................................................................... 1/5, 1/7
Duty .............................................................................. 1/16, 1/32
Common output ............................................................... 16 or 32
Segment output ............................................................... 52 or 68
qMain
clock generating circuit (RC oscillation selectable)
...................... (connect to external ceramic resonator or resistor)
qSub-clock
generating circuit
............................................. (connect to quartz-crystal oscilaltor)
qPower
source voltage
In high-speed mode .................................................... 4.0 to 5.5 V
In middle-speed mode ................................................ 2.2 to 5.5 V
In low-speed mode ..................................................... 2.2 to 5.5 V
qPower
dissipation
In high-speed mode ........................................................... 30 mW
(at 8 MHz oscillation frequency, at 5 V power source voltage)
In low-speed mode ............................................................. 60
碌W
(at 32 kHz oscillation frequency, at 3 V power source voltage, at
WIT state, at voltage multiplier operating, LCD drive waveform
generating state)
qOperating
temperature range ................................... 鈥?20 to 85擄C
APPLICATIONS
Dot-matrix-type displays

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