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M38748MET-XXXFS Datasheet(PDF) 1 Page - Mitsubishi Electric Semiconductor |
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M38748MET-XXXFS Datasheet(HTML) 1 Page - Mitsubishi Electric Semiconductor |
1 / 92 page 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 µs (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 3874 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER MITSUBISHI MICROCOMPUTERS 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 µW (at 32 kHz oscillation frequency, at 3 V power source voltage) qOperating temperature range .................................... –40 to 85°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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