четверг, 2 декабря 2010 г.

I had a fact about 4066 ic datasheet

4066 ic datasheet


Although we are looking at an example from , according to my main component supplier /Newark this IC is also manufactured by Texas , Semi, Microelectronics and . This is where the benefit of the IC comes to mind, normally one might use a 1k ohm resistor and an NPN switching transistor as an electronic switch, and I have myself. With regards to the current the IC can switch, Is, the maximum is 25mA per switch. The other interesting parameter is the turn-on and turn off times – at 6 volts it can turn on in around 10 nanoseconds and turn off at around 13 nanoseconds so a rough calculation – say it takes 30 nanoseconds to switch on and then switch off, that’s 33.3 million times per seconds 33.3 MHz . And here is the Arduino sketch: . Anyhow, let’s have a look at something much more interesting – a very basic ! Consider the circuit below: The 74HC4066 switches creates a final voltage through the sum of various currents being switched into the final output. First of all, here is a video of the switches being turned on and off one at a time: and the corresponding Arduino sketch: . The next video shows the results of sending decimal numbers 0~15 to the shift register – in effect continually adding the outputs of the pins until all pins are on, then in reverse: and the corresponding Ardiono sketch: . High resolution photos are available on . Notes: In writing this post, I used information from , plus information and circuit inspiration from various books by Forrest Mims III . - Posted by , , , , , , , , , , , , , ,
4066 ic datasheet
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