555 Timer PRO 2.8.0.134

With almost a half million downloads so far, users have found timer software to be superior to any other printed or digital resources. Each provides an array of design wizards, circuit blocks and information panels that facilitate the use of the 555 timer in projects. Component value calculations for the 555 take into account the supply voltage, timer fabrication (CMOS or Bipolar), and, where appropriate, load currents.