![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgV1qdXB1xLUdM-WznfEvDho7p1cUmBxu99RtspDrmAoyQ63mE0VfCsOhD6BepBTvqCoY_cmeJn7RKaN20vbWI_upL1a4H6ksZN1aA2akOD52i3MVp79yMjnPT6D9Vm2jxtgeroDvUqDXc/s0/Die_of_the_first_555_chip.jpg)
TIMER IC 555
- The 555 Integrated Circuit was first introduced by Signetics Corporation as Type SE555/NE555.
- Available in 8-pin circular style TO-99 Can, 8-pin mini-DIP and 14-pin DIP
Features:
- Operation: +5VDC to +18VDC.
- Compatible to TTL/CMOS, and op-amp based circuits.
- Versatile Applications: oscillator, pulse generator, square and ramp wave generator, one-shot multivibrator, safety alarm, timer circuits, traffic light controllers, PWM, etc.
- 555 timer can provide time delay ranging from microseconds to hours.
Symbol (Source: Wikipedia)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiMpaJlRYgmwEX8ROmphdE22RgRkzfamMnQqcaIRz9nc3NJyWBXdL16kDhkx2CdwkwXIb6c2lCshNxgb67mvor_dlKhEZlFVkfk7ezlT9FpYrDZhJ7HB-nmw3UQbYIo2eLPshag3fGSWEo/s0/375px-NE555_Bloc_Diagram.svg.png)
Internal CMOS design of timer IC 555
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgT6i5Vmh6G1N2bxBVr07kuMEj0LIODoeGCXUGPOSOlUrt2gcaiuFn1qShj2CEYOMae3aFl8degzin5mOvxF3cBciuFWznp1VgnlkmJ4n8-WAHzlIOg2osG2SrKpE7fDM6eDajdJ0GRT0g/s16000/1024px-C555_Internal_Circuit.svg.png)
Datasheet for 555 timer IC ~ +4.5VDC to +18VDC (Source Texas Instruments: click here)
Comments
Post a Comment