So... I have a couple of mc3418dw SOICs. Any ideas for a project with them?

Question

Here is the datasheet if you don't know what they are:

http://www.datasheetarchive.com/pdf/2265915.pdf

I am just curious. i have two of them and jsut wondering what would be a fun project with them.

Answer 1

hey, those are cool. you would need to be pretty good with digital design to get them to do anything. those suckers are pretty complex! each chip is both a mux and a demux in the same package. this would make them good for any type of communication encoding. looking over the pin outs, it looks like they are used to convert analog and digital signals. they wont be very useful by themselves. you will need two pieces of digital electronics to communicate with each other. the best use i can think of is building a wireless control between a robot and a computer. it is about as hard as it sounds. but any geek can do it if you have had a few digital and programing classes. i guess it is worth saying that because that is a highend chip it is worthless without a highend project.

write a program that can send data to a comm port on your computer. java would be the easiest.

build a buffer circuit that stores the data send out by the comm port. there are plans for these buffers all over the internet.

encode the data using this chip and send it to a transmitter. the cool thing about this chip is it will let you fit a lot of data into a really cheap transmitter. you could use a el cheapo radio shack walkie-talkie. to control a 128 function robot 1/4 of a mile away.

use a compatible receiver connected to a buffer that can be accessed as a memory location by a microcontroller or a PIC.

Was that too much?

Answer 2

Appears you can build a full duplex coder/decoder for audio signals.

So you can build your own telephone system...