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Study of an Integrated Circuit Timer 555

INTRODUCTION
555 timer is a highly stable integrated circuit capable of functioning as an accurate time-delay generator and as an astable multivibrator or free running multivibrator. When used as an oscillator the frequency and duty cycle are accurately controlled by only two external resistors and a capacitor. Some of its important features are timing from micro-seconds through hours, monostable and astable operation, trigger and reset inputs are logic compatible, and output compatible with CMOS, DTL and TTL (when used with 5V supply).
The set-up consists of 555 IC with facilities for convenient connection at the board, a power supply, built-in facilities for various type of triggers-variable frequency, variable voltage, and manual. The resistors and capacitors required are mounted on the board.
The set-up is complete in all respect, including patch chords

Description

STUDY OF ASTABLE & MONOSTABLE MULTIVIBRATORS USING TIMER IC: 555

FEATURES
• Operation as a free running/ astable multivibrator
• Operation as a monostable multivibrator
• Operation as a preset time delay

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