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Electronics => Electronics => Topic started by: walkercreations on October 15, 2009, 09:15:35 AM

Title: ATMega168
Post by: walkercreations on October 15, 2009, 09:15:35 AM
Does anyone have a link for it at digikey.com? When I did a search there all I got was some search box thing to narrow my search.
Title: Re: ATMega168
Post by: chelmi on October 15, 2009, 10:17:06 AM
As they say "Give a man a fish and he will eat for a day, teach a man to fish and he will eat for the rest of his life."

So instead of giving you a link I will try to explain how to narrow your search.

ATmega168 comes in 4 different packages (see the datasheet), so you need to specify which one you want. I assume you need the through-hole (DIP) package, so select this in the package box.
You will get a few results, most of them are out of stocks versions. The two stocked versions are two different frequencies (10MHz or 20MHz). Just get the 20MHz, it's the same price.

Hope this helps.

Chelmi.
Title: Re: ATMega168
Post by: galannthegreat on October 15, 2009, 12:56:29 PM
Always when searching Digi-Key for something that you want to purchase right away, it is best to check the "In Stock" box below the search criteria, it helps to really narrow down what you want to buy, not what is not in stock and what may take awhile on backorder or special order.
Title: Re: ATMega168
Post by: chelmi on October 15, 2009, 01:13:19 PM
Always when searching Digi-Key for something that you want to purchase right away, it is best to check the "In Stock" box below the search criteria, it helps to really narrow down what you want to buy, not what is not in stock and what may take awhile on backorder or special order.

Good point galannthegreat
I made a mistake in my previous post: the 10MHz is not available. It's even easier than I thought.
A feature I'd love to see on Digi-Key or Mouser is a way to show only the items with a minimum order quantity of 1.
It would save a lot of time for hobbyists who don't want to order a reel of 3000 transistors...

Chelmi.
Title: Re: ATMega168
Post by: galannthegreat on October 15, 2009, 02:18:46 PM
The "Cut Tape (CT)" option in the "Packaging" column generally allows you to order one at time. They go based on what machine it will be fed into for placement and the like. Cut tape is for when a technician or technologist grabs and picks the items from a bin for hand placement of the components.
Title: Re: ATMega168
Post by: chelmi on October 15, 2009, 02:38:02 PM
Nice trick :)
It also depends on the kind of component. For IC the packaging is often tube and in this case there is no "cut tube" :(
Title: Re: ATMega168
Post by: galannthegreat on October 15, 2009, 03:02:24 PM
That would make sense lol.
Title: Re: ATMega168
Post by: walkercreations on October 15, 2009, 03:32:40 PM
ATmega168 comes in 4 different packages (see the datasheet)

How am I going to look at the datasheet if I can't find the item? Thank's anyway. Hope you look one day for something you know nothing about and need help finding it. You preach Karma but one day Karma will be your worse enemy. Good luck with that one.
Title: Re: ATMega168
Post by: SmAsH on October 15, 2009, 03:40:33 PM
It should say in the filter selections.
You want 28pin dip i think...
Title: Re: ATMega168
Post by: chelmi on October 15, 2009, 04:00:12 PM
ATmega168 comes in 4 different packages (see the datasheet)

How am I going to look at the datasheet if I can't find the item? Thank's anyway. Hope you look one day for something you know nothing about and need help finding it. You preach Karma but one day Karma will be your worse enemy. Good luck with that one.

I'm not sure to understand what you meant here...
Anyway the datasheet is available on atmels website.
Title: Re: ATMega168
Post by: SmAsH on October 15, 2009, 04:04:35 PM
He thought you mean to look at the datasheet of the item on digikey to find out what package it is.
Title: Re: ATMega168
Post by: galannthegreat on October 15, 2009, 05:58:46 PM
The package that most hobbyist tend towards is the 28 PDIP package, so if you're unsure about what a package means look at what the datasheet specifies it as and choose accordingly. You shouldn't stress too much about it, this is what you want (you probably found this one):http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=ATMEGA168-20PU-ND (http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=ATMEGA168-20PU-ND).

P.S. Look at the stock aswell, if it's high it is most likely what a lot of people are ordering.
Title: Re: ATMega168
Post by: chelmi on October 15, 2009, 08:00:43 PM
He thought you mean to look at the datasheet of the item on digikey to find out what package it is.

I understood that part, I was talking about the karma stuff...
Title: Re: ATMega168
Post by: SmAsH on October 16, 2009, 05:29:51 AM
ahh, i just didn't pay any attention to that ;D