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555 timer IC
Signetics NE555 in 8-pin DIP package
Type
Active, integrated circuit
Invented
Hans Camenzind (1971)
First production
1972
Electronic symbol
Internal block diagram[1]
The 555 timer IC is an integrated circuit used in a variety of timer, delay, pulse generation, and oscillator applications. It is one of the most popular timing ICs due to its flexibility and price. Derivatives provide two (556) or four (558) timing circuits in one package.[2] The design was first marketed in 1972 by Signetics[3][4] and used bipolar junction transistors. Since then, numerous companies have made the original timers and later similar low-power CMOS timers. In 2017, it was said that over a billion 555 timers are produced annually by some estimates, and that the design was "probably the most popular integrated circuit ever made".[5]
^Cite error: The named reference TI_NE555_Datasheet was invoked but never defined (see the help page).
^Cite error: The named reference Signetics_1985_Linear_Databook was invoked but never defined (see the help page).
^Fuller, Brian (15 August 2012). "Hans Camenzind, 555 timer inventor, dies". EE Times. Retrieved 27 December 2016.
^Cite error: The named reference Signetics_1972_Linear1_Databook was invoked but never defined (see the help page).
^Lowe, Doug (2017-02-06). Electronics All-in-One For Dummies. Wiley. p. 339. ISBN 978-1-119-32079-1. The 555 timer chip, developed in 1970, is probably the most popular integrated circuit ever made. By some estimates, more than a billion of them are manufactured every year.
The 555timerIC is an integrated circuit used in a variety of timer, delay, pulse generation, and oscillator applications. It is one of the most popular...
– 8 August 2012) was an electronics engineer known for designing the 555timerIC in 1971 under contract to Signetics. He was the inventor on 20 US patents...
the low threshold. A similar relaxation oscillator can be built with a 555timerIC (acting in astable mode) that takes the place of the neon bulb above...
Wing 555 Field Artillery Battalion, part of the United States 5th Infantry Regiment Triple Nickel Books, published by Solomon Gelman 555timerIC, an integrated...
innovate in IC technology, and remained a significant force. Around 1971, the Signetics introduced the innovative 555timerIC, which it called "The IC Time...
MAX038. Both devices have since been discontinued.[citation needed] 555timerIC Santo, Brian (1 May 2009). "25 Microchips That Shook the World". IEEE...
high and turn on the AND gate output. Comparator Operational amplifier 555timerIC Ramón Pallás-Areny; John G. Webster (1999). Analog Signal Processing...
and well-known analog chips are the 741 operational amplifier, and the 555timerIC. Power supply chips are also considered to be analog chips. Their main...
expressly to make and sell integrated circuits" and inventor of the 555timerIC. At the time, it was claimed that with the Signetics acquisition, Philips...
as integrated circuits became more popular, oscillators such as the 555timerIC became more commonly used. In addition to its use as the active device...
outputs of the game controller, Wozniak used a simple timer circuit, built around a quad 555timerIC called a 558, whose period is proportional to the resistance...
sampled sounds have been replaced by an analogue oscillator based on a 555timerIC, and the tone selector offers three octave ranges. The sound is much...
telecommunications products. t is best known for its redesign of the 555timerIC as a low-voltage CMOS device. The company provides MOSFET arrays, including...
series as a side effect of the solid state timing circuits (e.g. the 555timerIC) in their envelope generators not being able to re-trigger until their...
pp. 343–349. ISBN 978-0-521-37095-0. Rapid Electronics Ltd., "MK484 Radio IC" datasheet "Mk484 Radios". Archived from the original on 2020-11-06. Retrieved...
Camenzind (1934–2012), electronics engineer, famous for designing the 555timerIC Oscar Camenzind (born 1971), Swiss cyclist Fictitious characters with...
O P Q R S T U V W X Y Z 16VSB – 2VSB – 32VSB – 4000 series – 4VSB – 555timerIC – 7400 series – 8VSB Absolute gain (physics) – Access control – Access...
jpg" width="35" height="35" class="photo". "555timer teardown: inside the world's most popular IC". {{cite web}}: |first= has generic name (help)CS1...
Logic probes. Schematic of a simple logic tester How to make a simple logic tester How to make a logic tester using a 555timer chip Elenco logic probes...
but there were also blocks containing drivers, and a timer circuit similar to the later 555timerIC. The original Norbit modules of the YL 6000 series...
medical entomologist Hans R. Camenzind (1934–2012), inventor of the 555timerIC Florian Cajori (1859–1930), mathematician Robert Frank (1924–2019), important...
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