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Silicon die of the first 555 chip (1971) Die of a CMOS NXP ICM7555 chip. The timer IC was designed in 1971 by Hans Camenzind under contract to Signetics. [3] In 1968, he was hired by Signetics to develop a phase-locked loop (PLL) IC. He designed an oscillator for PLLs such that the frequency did not depend on the power supply voltage or ...
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Signetics Corporation was an American electronics manufacturer specifically established to make integrated circuits. [1] Founded in 1961, they went on to develop a number of early microprocessors and support chips, as well as the widely used 555 timer chip.
Hans R. Camenzind (Swiss Standard German: [ˈkaːməntsɪnd]; 1 January 1934 – 8 August 2012 [1]) was an electronics engineer known for designing the 555 timer IC in 1971 under contract to Signetics. [2] He was the inventor on 20 US patents.
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Deutsch: Der NE555 enthält 24 Bipolartransistoren, zwei Dioden und 15 Widerstände, die zusammen sechs Funktionsblöcke bilden: Zwischen der Versorgungsspannung V CC (+) und der Masse GND(−) befindet sich ein Spannungsteiler aus drei identischen Widerständen, der, wenn nicht von außen beschaltet, die beiden Referenzspannungen ¹/ 3 V CC und ²/ 3 V CC liefert.
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Research and industry in this specialty continues to grow and prosper. Some examples of long-lived and well-known analog chips are the 741 operational amplifier, and the 555 timer IC. Power supply chips are also considered to be analog chips. Their main purpose is to produce a well-regulated output voltage supply for other chips in the system.
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related to: 555 timer chip datasheet pdf file format name and number of pages