One of the reasons why the 7490 has become obsolete (scarce if you prefer) is because they are a high current, high heat device compared with the newer technology (CMOS, etc.). The 74LS Series is an improvement in speed but still relatively high current and heat. Many designers are considering low voltage devices as a result of the increased demand for portable, battery powered stuff. I would thing that newer designs for production quantities would consider alternatives to the 74xx or 74LSxx devices. That being said, it is just MHO. ----- Original Message ----- From: "PicDude" To: "Microcontroller discussion list - Public." Sent: Friday, June 30, 2006 1:45 AM Subject: Re: [EE] Where have all the 7490's gone? > Nice resource -- thanks. > -Neil. > > > On Wednesday 28 June 2006 17:51, Harold Hallikainen wrote: >> I'm finding them at various places in LS and HC. Try >> http://www.findchips.com . >> >> Harold >> >> > Why have all the 74xx90's (decade counters) disappeared suddenly? My >> > usual >> > sources (Digikey & Mouser) are claiming that they're >> > discontinued/obsolete. >> > Anyone know where I can get just 10-12 of these in SOIC packaging? >> > Have >> > some >> > PCB's already made from over a year ago that I need these for, so it's >> > not a >> > simple matter of choosing a different part. >> > >> > Cheers, >> > -Neil. >> > -- >> > http://www.piclist.com PIC/SX FAQ & list archive >> > View/change your membership options at >> > http://mailman.mit.edu/mailman/listinfo/piclist >> >> -- >> FCC Rules Updated Daily at http://www.hallikainen.com - Advertising >> opportunities available! > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist