38K0 group

      The 38K0 group is the 8-bit microcomputer based on the 740 family core technology.The 38K0 group has the USB function, an 8-bit bus interface, a Serial Interface, three 8-bit timers, and an 8-channel 10-bit A/D converter, which are available for the PC peripheral I/O device.The various microcomputers in the 38K0 group include variations of internal memory size and packaging. For details, refer to the section on part numbering.
       It has lots of unique features. Basic machine-language instructions  is 71. The minimum instruction execution time is 0.25 s(at 8 MHz system clock✻). Memory size is like that ROM is 16 K to 32 K bytes and RAM is 1024 to 2048 bytes. Programmable input/output ports is 48. Software pull-up resistors : Interrupts are 15 sources, 15 vectors. USB function (Full-Speed USB2.0 specification) is 4 endpoints. External bus interface is 8-bit * 1 channel. Timers is 8-bit * 3. Watchdog timer is 16-bit * 1. Power source voltage (L version) is 4.00 to 5.25 V(At 12 MHz/2-divide mode( = 6 MHz)), 4.00 to 5.25 V(At 8 MHz/Through mode ( = 8 MHz)), 3.00 to 5.25 V(At 6 MHz/Through mode ( = 6 MHz)). Powe disspation is 125 mW (typ.)(At 5 V power source voltage , at 8 MHz system clock, in through mode), 30 mW (typ.)(At 3.3 V power source voltage , at 6 MHz system clock, in through mode).Operating temperature range is from20°C to 85°C.
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