Low-pin count, general-purpose MCU with built-in A/D converter, serialinterface, sub-clock, etc. Maximum oscillation frequency is 12.5MHz. Comes in a42-pin package. Available in QzROM, Flash memory, and Mask ROM versions.

3850H Group page is here.

Main Solutions

Key Features:

[QzROM Version]

  • Basic machine-language instructions: 71
  • Minimum instruction execution time: 0.32 μs (at 12.5 MHz oscillationfrequency)
  • Memory size
    • ROM: 16K bytes
    • RAM: 512 bytes
  • Programmable input/output ports: 34
  • On-chip software pull-up resistor
  • Interrupts: 15 sources, 14 vectors
  • Timers: 8-bit × 4
  • Serial interface
    • Serial I/O1: 8-bit × 1(UART or Clock-synchronized)
    • Serial I/O2: 8-bit × 1(Clock-synchronized)
  • PWM: 8-bit × 1
  • A/D converter: 10-bit × 9 channels
  • Watchdog timer: 16-bit × 1
  • Clock generating circuit: Built-in 2 circuits (connect to external ceramicresonator or quartz-crystal oscillator)
  • Power source voltage
    [In high-speed mode]
    • f(XIN) <12.5MHz: 4.0 to 5.5 V
    • f(XIN) <6.0MHz: 2.7 to 5.5 V
    • f(XIN) <4.2MHz: 2.2 to 5.5 V
    • f(XIN) <2.1MHz: 2.0 to 5.5 V
    [In middle-speed mode]
    • f(XIN) <12.5MHz: 2.7 to 5.5 V
    • f(XIN) <8.4MHz: 2.2 to 5.5 V
    • f(XIN) <4.2MHz: 1.8 to 5.5 V
    [In low-speed mode]
    • f(XCIN) <50kHz: 1.8 to 5.5 V
  • Power dissipation
    • In high-speed mode: 30mW (typ.) (at 12.5 MHz oscillation frequency, at 5 Vpower source voltage)
    • In low-speed mode: 45 μW (typ.) (at 32 kHz oscillation frequency, at 3 Vpower source voltage)
  • Operating temperature range: –20 to 85 degrees C

[Mask ROM, Flash Memory Version]

  • Basic machine-language instructions: 71
  • Minimum instruction execution time: 0.32 μs (at 12.5 MHz oscillationfrequency)
  • Memory size
    • ROM: 8K to 16K bytes
    • RAM: 512 to 1024 bytes
  • Programmable input/output ports : 34
  • On-chip software pull-up resistor
  • Interrupts: 15 sources, 14 vectors
  • Timers: 8-bit × 4
  • Serial Interface
    • Serial I/O1: 8-bit × 1(UART or Clock-synchronized)
    • Serial I/O2: 8-bit × 1(Clock-synchronized)
  • PWM: 8-bit × 1
  • A/D converter: 10-bit × 9 channels
  • Watchdog timer: 16-bit × 1
  • Clock generating circuit: Built-in 2 circuits (connect to external ceramicresonator or quartz-crystal oscillator)
  • Power source voltage
    • In high-speed mode: 4.0 to 5.5 V (at 12.5 MHz oscillation frequency)
    • In high-speed mode: 2.7 to 5.5 V (at 6 MHz oscillation frequency)
    • In middle-speed mode: 2.7 to 5.5 V (at 12.5 MHz oscillation frequency)
    • In low-speed mode 2.7 to 5.5 V (at 32 kHz oscillation frequency)
  • Power dissipation
    • In high-speed mode
      • Except M38507F8FP/SP: 32.5mW
      • M38507F8FP/SP: 37.5mW
        (at 12.5 MHz oscillation frequency, at 5 V power source voltage)
    • In low-speed mode
      • Except M38507F8FP/SP: 60 μW
      • M38507F8FP/SP: 450 μW
        (at 32 kHz oscillation frequency, at 3 V power source voltage)
  • Operating temperature range: –20 to 85 degrees C

 

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Characteristics data Information on observed values. Please use this as reference data when developing your set.
Reference oscillator circuit constants Oscillator circuit constants provided for reference by Murata Manufacturing, Kyocera and Nihon Dempa Kogyo.
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