try rs http://uk.rs-online.com/web/p/led-display-drivers/6229493/ £7 (+VAT)free delivery
Quote£7 (+VAT)At that price, it probably makes sense to program some AVR chips to emulate max7219.
I am in no way affiliated with this seller.I bought a tube of ten from this seller http://www.ebay.co.uk/itm/10pcs-MAX7219-MAX7219CNG-8-Digit-LED-Display-Driver-DIP-/140439183565?pt=LH_DefaultDomain_0&hash=item20b2d3e0cd a few months back. I tested them on a breadboard when they arrived an all worked without problem. The ones I have since used continue to work fine in clocks running 24/7
Last time I bought some I paid $12 for 10 chips (shipping included) and they took about a week to arrive. They came in Maxim-branded tubes and powered on just fine.
For one-off stuff, it is a lot easier to make your own clone from a mcu.
How does an MCU do current regulation?
Even if they're clones they still save a lot of work/components.
QuoteEven if they're clones they still save a lot of work/components.vs. what?
What MCU will do that with no external components?
QuoteWhat MCU will do that with no external components?A mega328p for example?