Happy 50th Birthday to the Signetics 555 Timer IC – EEJournal
https://www.eejournal.com/article/happy-50th-birthday-to-the-signetics-555-timer-ic/
Web ResultJan 10, 2022 · Signetics announced the NE555 timer/oscillator IC in 1972, 50 years ago. Over five decades, this simple 8-pin chip has consistently sold in the billions, each year. It’s a perennial hobbyist favorite. Well-known authors such as Walter Jung wrote 555 timer cookbooks, and 555 circuits have been popular for new circuit …
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