DESCRIPTION
The 38C2 group is the 8-bit microcomputer based on the 740 family core technology.
The 38C2 group has an LCD drive control circuit, a 10-channel A-D converter, and a Serial I/O as additional functions.
The various microcomputers in the 38C2 group include variations of internal memory size and packaging. For details, refer to the section on part numbering.

FEATURES
● Basic machine-language instructions ....................................... 71
● The minimum instruction execution time .......................... 0.25 µs
                                                         (at 8MHz oscillation frequency)
● Memory size
   ROM ................................................................ 16 K to 60 K bytes
   RAM ................................................................. 640 to 2048 bytes
● Programmable input/output ports ............................................. 51
                                                                       (common to SEG: 24)
● Interrupts ................................................... 18 sources, 16 vectors
● Timers ............................................................8-bit ✕ 4, 16-bit ✕ 2
● A-D converter ................................................. 10-bit ✕ 8 channels
● Serial I/O ........................ 8-bit ✕ 2 (UART or Clock-synchronized)
● PWM .................. 10-bit ✕ 2, 16-bit ✕ 1 (common to IGBT output)
● LCD drive control circuit
   Bias ................................................................................... 1/2, 1/3
   Duty ........................................................................... 1/2, 1/3, 1/4
   Common output .......................................................................... 4
   Segment output ........................................................................ 24
● Two clock generating circuits
   (connect to external ceramic resonator or quartz-crystal oscillator)
● Watchdog timer ............................................................... 8-bit ✕ 1
●  LED direct drive port .................................................................. 8
   (average current: 15 mA, peak current: 30 mA, total current: 90 mA)
● Power source voltage
   In through mode .......................................................... 4.0 to 5.5 V
                                                         (at 8 MHz oscillation frequency)
   In frequency/2 mode ................................................... 1.8 to 5.5 V
                 (at 4 MHz oscillation frequency, A-D operation excluded)
   In low-speed mode ..................................................... 1.8 to 5.5 V
                                                       (at 32 kHz oscillation frequency)
● Power dissipation
   In through mode ................................................................. 26 mW
                                     (at 8 MHz oscillation frequency, VCC = 5 V)
   In low-speed mode .............................................................21 µW
                                    (at 32 kHz oscillation frequency, VCC = 3 V)
● Operating temperature range ................................... – 20 to 85°C