There are a huge number of cheap timing parts. You can even get an entire waveform generator in a 10pin MSOP. http://www.analog.com/media/en/technical-documen

There are a huge number of cheap timing parts. You can even get an entire waveform generator in a 10pin MSOP. http://www.analog.com/media/en/technical-documentation/data-sheets/ad9833.pdf http://www.analog.com/media/en/technical-documentation/data-... There are many better alternatives now. https://www.electronicdesign.com/boards/555-best-ic-ever-or-obsolete-anachronism https://www.electronicdesign.com/boards/555-best-ic-ever-or-...