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    • 參數(shù)資料
      型號: MC68HC05K1DW
      廠商: MOTOROLA INC
      元件分類: 微控制器/微處理器
      英文描述: 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PDSO16
      封裝: SOIC-16
      文件頁數(shù): 70/154頁
      文件大?。?/td> 1544K
      代理商: MC68HC05K1DW
      Technical Data
      MC68HC05K0 MC68HC05K1 — Rev. 2.0
      22
      General Description
      MOTOROLA
      Technical Data
      1.6.1 VDD and VSS
      V
      DD and VSS are the power supply and ground pins. The MCU operates
      from a single 3.0-V to 6.0-V power supply.
      Very fast signal transitions occur on the MCU pins, placing high
      short-duration current demands on the power supply. To prevent noise
      problems, take special care to provide good power supply bypassing at
      the MCU. Place bypass capacitors as close to the MCU as possible, as
      Figure 1-3. Bypassing Layout Recommendation
      1.6.2 OSC1, OSC2, and PB1/OSC3
      The OSC1, OSC2, and PB1/OSC3 pins are the control connections for
      the 2-pin or 3-pin on-chip oscillator. The oscillator can be driven by any
      of these:
      Crystal
      Ceramic resonator
      Resistor-capacitor (RC) combination
      External clock signal
      The frequency of the internal oscillator is fosc. The MCU divides the
      internal oscillator output by two to produce the internal clock with a
      frequency of fop.
      V
      DD
      V
      SS
      C1
      MCU
      C2
      V
      DD
      V
      SS
      +
      C1
      OSC1
      OSC2
      C2
      Note:
      Actual layout varies according to component dimensions.
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