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Product Overview:

Low-pin count, general-purpose MCU with built-in carrier wave generatingcircuit, perfect for remote control applications. Built-in power-on reset andvoltage drop detection circuits. Maximum oscillation frequency is 4MHz. Comesin a 32-pin package. QzROM version available

740Series QzROM

 

Key Features:

  • Basic machine-language instructions: 71
  • The minimum instruction execution time: 2 μs (at 4 MHz oscillationfrequency)
  • Memory size
    • ROM: 4K to 60K bytes
    • RAM: 512, 256 bytes
  • Programmable I/O ports: 25
  • Key-on wakeup input: 8 inputs
  • LED output port: 8
  • Interrupts: 7 sources, 7 vectors
  • Timers: 8-bit × 3
  • Carrier wave generating circuit: 1 channel (8-bit timer × 2)
  • Clock generating circuit: Built-in type (connect to external ceramicresonator or quartz-crystal oscillator)
  • 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/quartz-crystal oscillation
      At 4 MHz: 1.8 to 3.6 V
  • Power dissipation: 1.8mW
  • Operating temperature range: –20 to 85 degrees C

Key Applications:

Remote control transmit.

Product Lineup:


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