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M38C88E2 Datasheet(PDF) 2 Page - Renesas Technology Corp |
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M38C88E2 Datasheet(HTML) 2 Page - Renesas Technology Corp |
2 / 55 page 1 38C8 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER MITSUBISHI MICROCOMPUTERS 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 type and packaging. For details, refer to the section on part numbering. FEATURES qBasic machine-language instructions ....................................... 71 qThe minimum instruction execution time ............................ 0.5 µs (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–P3, P41–P47 qInterrupts ................................................... 14 sources, 14 vectors (includes key input interrupt) qTimers ............................................................ 8-bit ✕ 3, 16-bit ✕ 2 qSerial I/O ........................ 8-bit ✕ 1 (UART or Clock-synchronized) qA-D converter (32 kHz operating available) ... 10-bit ✕ 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 external 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 µW (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 ................................... – 20 to 85°C APPLICATIONS Dot-matrix-type LCD displays |
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