The chip we’ll be using for our oscillator is the CD40106BE; also called the HEF40106, depending on who makes it (datasheet, PDF) which is a hex inverter with hysteresis.

Where electronics engineers discover the latest toolsThe design site for hardware software, ... (555 Schmitt Trigger Logic Inverter Level Translator) (555 Level Translator Test Circuit) 555 datasheet.

TL;DR #2–no better example than this is needed to explain why designers–who design with logic gates and flip-flops–design synchronous digital systems rather than random-logic ones. Report ...