Arithmetic Logic Functions | MC3456

双计时电路

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MC3456 双计时电路是一款稳定性很好的控制器，能够产生准确的时间延迟或振荡。如果需要，可提供附加的端子用于触发或重置。在时间延迟运行模式下，时间由每个计时器一个外部电阻和电容器进行精确控制。要作为振荡器稳定运行，空转频率和占空比均通过两个外部电阻和一个电容器进行准确控制。该电路可在下降波形时进行触发和重置，输出结构可以源/汲最高 200 mA 的电流或驱动 MTTL 电路。

  • Direct Replacement for NE556/SE556 Timers
  • Timing from Microseconds through Hours
  • Operates in Both Astable and Monostable Modes
  • Adjustable Duty Cycle
  • High Current Output can Source or Sink 200 mA
  • Output can Drive MTTL
  • Temperature Stability of 0.005% per °C
  • Normally "On" or Normally "Off" Output
  • Dual Version of the Popular MC1455 Timer

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