Able to tolerate and operate at a wide range of voltages. 5V to 15V at least.
Able to tolerate abuse..... ask me how I know
Low cost .... as little as 25 cents each
Easy to obtain Mouser.com , eBay.com , RadioShack.com , many more vendors
Easy to experiment with.
Datasheet URLs
http://www.ti.com/product/cd40106b-mil
Each of the 6 inverters has a Schmitt trigger input... this means the input has hysteresis and switches at approximately 1/3 of Vcc and 2/3 of Vcc. This makes the chip capable of doing some really cool things. Each section can do some powerful things and they can be linked together to create crazy features.
My thanks to fritzing.org .... I have used their fabulous application for many purposes including schematic drawing ...
Oscillator
== Delay circuit ========
Example one is designed to accept a positive trigger pulse and output a 2 second pulse. No more trigger pulses will be processed until 120 seconds has passed.
Positive going trigger pulse arrives at R1. R1 , C1, D4 and R10 shorten the pulse to arbitrary value ( 1 millisecond in this case ).
R3 and C3 produce a 2 second pulse.
R2 and C2 produce a 120 second pulse. This pulse is used to disable any further 2 second pulses. See U1C and U1D , D1.
D3 and D2 isolate the 2 second and 120 second pulse generators.
The output of U1B ( 2 second pulse ) can be beefed up using low cost transistors and/or an opto-isolator.
D1-D4 are 1N4148 or equivalent.
Tone Generator
Some Circuits by others ...
http://www.electroschematics.com/tag/40106-circuits/
Siren , power converter , metal detector , PWM
Datasheet links
http://www.futurlec.com/4000Series/CD40106.shtml
keywords 777CD40106 77774C14 99guspuppet 77740106 777fritzing
