Is the LM555 an obsolete operational amplifier which has been substituted with a newer version?
When was the LM555 invented and if it has been replaced, why and which?
When was the LM555 invented and if it has been replaced, why and which?
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LM555 is a timer IC, not an op amp.
They still sell them. Invented 30 years or so ago.
Here is a data sheet
http://www.national.com/ds/LM/LM555.pdf
They still sell them. Invented 30 years or so ago.
Here is a data sheet
http://www.national.com/ds/LM/LM555.pdf