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7547

Low-pin count, general-purpose MCU with built-in input capture/output compare, A/D converter, serial interface, on-chip oscillator, etc. Maximum oscillationfrequency is 8MHz. Comes in a 36-pin package. This QzROM version ispin-compatible with 7542 Group MCUs. Enhanced with power-on reset and voltage drop detection circuits.

 

Key Features:

  • Basic machine-language instructions: 71
  • The minimum instruction execution time: 0.25 μs (at 8 MHz oscillationfrequency, double-speed mode)
  • Memory size
    • ROM: 8K, 16K bytes
    • RAM: 384, 512 bytes
  • Programmable I/O ports: 29
  • Interrupts: 18 sources, 16 vectors
  • Timers: 8-bit × 2, 16-bit × 2
  • Output compare: 4-channel
  • Input capture: 2-channel
  • Serial interface: 8-bit × 2 (UART or Clock-synchronized)
  • A/D converter: 10-bit × 8 channels
  • Clock generating circuit: Built-in type
    (low-power dissipation by an on-chip oscillator)
    (connected to external ceramic resonator or quartz-crystal oscillatorpermitting RC oscillation)
  • Watchdog timer: 16-bit × 1
  • Power-on reset circuit: Built-in type
  • Voltage drop detection circuit: Built-in type
  • Power source voltage
    • XIN oscillation frequency at ceramic oscillation, in double-speed mode ormiddle-speed mode
      • At 8 MHz: 4.5 to 5.5 V
    • XIN oscillation frequency at ceramic oscillation, in high-speed mode
      • At 8 MHz: 4.0 to 5.5 V
      • At 4 MHz: 2.4 to 5.5 V
      • At 2 MHz: 2.2 to 5.5 V
    • XIN oscillation frequency at RC oscillation in high-speed mode ormiddle-speed mode
      • At 4 MHz: 4.0 to 5.5 V
      • At 2 MHz: 2.4 to 5.5 V
      • At 1 MHz: 2.2 to 5.5 V
    • XIN oscillation frequency at on-chip oscillation: 1.8 to 5.5 V
  • Power dissipation: TBD
  • Operating temperature range: –20 to 85 degrees C

 

Below you will find information to support the development of your application.

 

Resources for Software and Hardware

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e-learning Information for studying and learning about microcontrollers and microprocessors.
FAQ Frequently asked questions and useful hints for development.
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Video Watch videos related to this product.

 

Hardware Design Support

Title Description
Reference oscillator circuit constants Oscillator circuit constants provided for reference by Murata Manufacturing, Kyocera and Nihon Dempa Kogyo.

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