IC 555 Timer

Timer & Oscillator Toolkit

Free · Designed for iPad

Practical Oscillator Circuits Using 555 Timers, Logic ICs, and Op-Amps. Master the design of oscillators and waveform generators with 555 timers, logic ICs, op-amps, and transistors. The application provides a comprehensive collection of over 130 tutorials and circuit diagrams, covering 555 timer circuits and practical applications, CMOS 4000 series logic oscillators, TTL 74LS and 74HC series oscillators, operational amplifier–based waveform generators, and transistor multivibrators. Designed for electronics beginners, students, hobbyists, and professional engineers, the app serves as a complete reference and learning tool for designing, understanding, and building oscillators, multivibrators, pulse generators, and waveform circuits commonly used in both analog and digital electronics. In addition to tutorials and schematics, the app includes built-in calculators for frequency, timing, duty cycle, and component value estimation, helping users quickly calculate and adjust circuit parameters. All topics are presented with clear circuit diagrams and detailed explanations. Covered Topics: • 555 Timer IC Series • Astable, monostable, and bistable modes • Pulse Width Modulation (PWM) • Voltage conversion circuits • Sensor and external module interfacing • CMOS Logic Oscillators • CMOS 4000 series circuits • Astable, monostable, and bistable modes • Gated CMOS oscillators • TTL / HC Logic Oscillators • TTL 74LS series circuits • 74HC series logic oscillators • Astable and monostable modes • Operational Amplifier Oscillators • Sine wave generators • Square-wave pulse generators • Triangle wave generators • Transistor-Based Oscillators • Transistor-Based Astable multivibrators • Transistor-Based Monostable multivibrators The application supports the following languages: English, French, German, Indonesian, Italian, Polish, Portuguese, Russian, Spanish, Turkish, and Ukrainian. The content is regularly updated and expanded with each new release, ensuring the latest tutorials and circuit examples are always available.

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Added new content: oscillators based on CMOS, TTL, op-amps, and transistors.

Version 3.0

The developer, ALG Software Lab, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Location
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  • Data Linked to You

    The following data may be collected and linked to your identity:

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    The following data may be collected but it is not linked to your identity:

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Privacy practices may vary based, for example, on the features you use or your age. Learn More

Accessibility

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Information

  • Provider
    • ALG Software Lab SIA
  • Size
    • 20.6 MB
  • Category
    • Education
  • Compatibility
    Requires iOS 15.0 or later.
    • iPhone
      Requires iOS 15.0 or later.
    • iPad
      Requires iPadOS 15.0 or later.
    • iPod touch
      Requires iOS 15.0 or later.
    • Mac
      Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
  • Languages
    English and 10 more
    • English, French, German, Indonesian, Italian, Polish, Portuguese, Russian, Spanish, Turkish, Ukrainian
  • Age Rating
    4+
  • Copyright
    • © ALG Software Lab SIA
  • Developer Website
  • Privacy Policy

    • More by ALG Software Lab

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