555 Timer - Revision history

DT Online at 16:35, 27 January 2018

2018-01-27T16:35:24Z

← Older revision		Revision as of 16:35, 27 January 2018
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	=====Description=====		=====Description=====

	The [http://en.wikipedia.org/wiki/555_timer_IC '''555 Timer'''] chip is designed to function as a [~~http~~://en.wikipedia.org/wiki/~~Multivibrator~~ '''monostable ''(one stable state)'' multivibrator'''] or as an '''~~astable~~ ''(free running)'' multivibrator'''.		The [http://en.wikipedia.org/wiki/555_timer_IC '''555 Timer'''] chip is designed to function as a [https://en.wikipedia.org/wiki/555_timer_IC#Monostable '''monostable ''(one stable state)'' multivibrator'''] or as an [https://en.wikipedia.org/wiki/555_timer_IC#Astable'''Astable ''(free running)'' multivibrator'''].


	=====Features and Applications=====		=====Features and Applications=====

	It contains the equivalent of approximately 20 transistors,resistors, diodes etc. It is used for timing or switching circuits which give pulsed or digital outputs.		It contains the equivalent of approximately 20 transistors, resistors, diodes etc. It is used for timing or switching circuits which give pulsed or digital outputs.
	[[File:555Timer.jpg\|200px\|right]]		[[File:555Timer.jpg\|200px\|right]]

DT Online: Added Template

2016-07-03T11:11:15Z

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	[[File:Signetics NE555N.JPG\|200px\|right]]		[[File:Signetics NE555N.JPG\|200px\|right]]
			__TOC__


			=====Description=====

	The [http://en.wikipedia.org/wiki/555_timer_IC '''555 Timer'''] chip is designed to function as a [http://en.wikipedia.org/wiki/Multivibrator '''monostable ''(one stable state)'' multivibrator'''] or as an '''astable ''(free running)'' multivibrator'''.		The [http://en.wikipedia.org/wiki/555_timer_IC '''555 Timer'''] chip is designed to function as a [http://en.wikipedia.org/wiki/Multivibrator '''monostable ''(one stable state)'' multivibrator'''] or as an '''astable ''(free running)'' multivibrator'''.


			=====Features and Applications=====

	It contains the equivalent of approximately 20 transistors,resistors, diodes etc. It is used for timing or switching circuits which give pulsed or digital outputs.		It contains the equivalent of approximately 20 transistors,resistors, diodes etc. It is used for timing or switching circuits which give pulsed or digital outputs.
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	'''Uses:''' Oscillators, triggers, inverters, timers.		'''Uses:''' Oscillators, triggers, inverters, timers.


			{{Transistor & IC Buyers Guide}}


	[[Category:Secondary]]		[[Category:Secondary]]
	[[Category:Electronics Components]]		[[Category:Electronics Components]]

DT Online at 08:12, 3 June 2015

2015-06-03T08:12:12Z

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	[[Category:Secondary]]		[[Category:Secondary]]
	[[Category:Electronics ~~and Control]]~~		[[Category:Electronics Components]]
	~~[[Category:Materials and~~ Components]]

DT Online at 21:25, 30 April 2015

2015-04-30T21:25:12Z

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	[[Category:Secondary]]		[[Category:Secondary]]
			[[Category:Electronics and Control]]
	[[Category:Materials and Components]]		[[Category:Materials and Components]]
	~~[[Category:Electronics and Control]]~~

DT Online: Corrected category link

2015-04-30T21:23:10Z

Corrected category link

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	[[Category:Secondary]]		[[Category:Secondary]]
	[[Category:Components]]		[[Category:Materials and Components]]
	[[Category:Electronics and Control]]		[[Category:Electronics and Control]]

DT Online: Added category links

2015-04-28T15:12:04Z

Added category links

← Older revision		Revision as of 15:12, 28 April 2015
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	{{Secondary Electronics}}		[[Category:Secondary]]
			[[Category:Components]]
			[[Category:Electronics and Control]]

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2014-11-16T12:38:10Z

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	~~[[Category:~~Electronics]]		{{Secondary Electronics}}

DT Online: Added category link

2014-11-13T16:46:39Z

Added category link

← Older revision		Revision as of 16:46, 13 November 2014
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	'''Uses:''' Oscillators, triggers, inverters, timers.		'''Uses:''' Oscillators, triggers, inverters, timers.


			[[Category:Electronics]]

DT Online: 555 Timer

2014-11-11T18:47:23Z

555 Timer

New page

[[File:Signetics NE555N.JPG|200px|right]]
The [http://en.wikipedia.org/wiki/555_timer_IC '''555 Timer'''] chip is designed to function as a [http://en.wikipedia.org/wiki/Multivibrator '''monostable ''(one stable state)'' multivibrator'''] or as an '''astable ''(free running)'' multivibrator'''.

It contains the equivalent of approximately 20 transistors,resistors, diodes etc. It is used for timing or switching circuits which give pulsed or digital outputs.
[[File:555Timer.jpg|200px|right]]

'''Data:'''
Pin
# connected to the negative ''(-ve)'' supply
# TRIGGER a voltage greater than 1/3 supply volts enables the chip.
# OUTPUT is equal to the supply volts when the output is on ''(600mW max)''.
# RESET when connected to positive supply volts.
# CONTROL OUTPUT applying a variable voltage to this pin varies the frequency of the output.
# THRESHOLD a voltage higher than the threshold voltage ''(2/3 supply volts)'' turns on the output.
# DISCHARGE when the output is turned on the pin goes to 0v allowing discharge of any connected capacitor.
# positive supply voltage ''(+ve)'' ''(4.5v - 16v)''

'''Uses:''' Oscillators, triggers, inverters, timers.