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LM555/NE555/SA555
Single Timer
Features
High Current Drive Capability (200mA) Adjustable Duty Cycle Temperature Stability of 0.005%/ C Timing From Sec to Hours Turn off Time Less Than 2 Sec
Description
The LM555/NE555/SA555 is a highly stable controller capable of producing accurate timing pulses. With a monostable operation, the time delay is controlled by one external resistor and one capacitor. With an astable operation, the frequency and duty cycle are accurately controlled by two external resistors and one capacitor.
8-DIP
Applications
Precision Timing Pulse Generation Time Delay Generation Sequential Timing
2002 Fairchild Semiconductor Corporation
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Can you give me more details about NE555?
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Please read the datasheet.
Then ask me a specific question.
Hey,
I read it. NE555 is a controller capable of producing accurate timing pulses
I didn't find this datasheet on your site. Now it's OK.
Thanks guys!
NE555 Datasheet Fairchild is now available. You can download it from our site.
Circuits Using the NE555 Timer
The NE555 timer and its companion devices, the NE556 dual timer and NE558 quad timer
can be used in a number of applications. The device can function both as an astable device and as a
monostable device (one-shot) and can be triggered in several of ways. A few circuits will be discussed
using these devices. There are many applications, limited by only your ingenuity. A few typical
circuits will be presented. By suitable component changes, they may be customized for a particular
application, or used as is.
http://www.northcountryradio.com/PDFs/column009.pdf
In this circuit the 555 timer is used in a novel way, as a voltage controlled switch.
http://www.zen22142.zen.co.uk/Circuits/Switching/vcs555.htm
The 555 timer IC was first
introduced around 1971 by the Signetics Corporation as the SE555/NE555 and was called "The IC Time Machine"
and was also the very first and only commercial timer ic available. It provided circuit designers and hobby tinkerers
with a relatively cheap, stable, and user-friendly integrated circuit for both monostable and astable applications.
Since this device was first made commercially available, a myrad of novel and unique circuits have been developed and
presented in several trade, professional, and hobby publications. The past ten years some manufacturers stopped
making these timers because of competition or other reasons.
http://www.uoguelph.ca/~antoon/gadgets/555/555.html
The NE-555 would prove to be a " hit " and provide Electronic Engineers, Circuit Designers and a host of "Hobby Tinkerers" with a relatively novel
and highly economical timer chip that was indeed very stable at timing all the way up to its maximum timing or oscillating frequency of 200KHz
and in a very short time proved to be a very "user-friendly" timer integrated circuit for both simple and complex monostable as well as brilliant
astable applications. Invented by a clever Swiss born gentleman by the name of Hans R. Camenzind in 1970, the NE-555 went on to become a legend in the industry.
http://www.unitechelectronics.com/NE-555.htm
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