Those go the other way - 4 to 16. He needs 16-to-4. that's 16 individual inputs which produce 4 binary coded outputs.
Maybe a small cpld? On May 9, 2008, at 12:30 PM, [EMAIL PROTECTED] wrote: > On 9 May 2008 at 8:15, Pete Smith wrote: > >> Another consideration might be hardware related. I am planning to >> use a >> 74HC147 to control the Xtall, but it only covers 0-9. I am trying >> to have >> a switch control with 9 positions, but 15 and 10 will be outside >> the range >> of the IC. Does anyone know of an off-the-shelf IC that does 16-to-4 >> binary encoding? I have been unsuccessful in finding one. >> >> 73, Pete N4ZR >> > 74XX154, 74HC4514, 74HC4515. The 4514 and 4515 have input latches, > the 154 doesn't. > all available from Mouser. > > Dave - WB6DHW > <http://wb6dhw.com> > > > ------------------------------------ > > Yahoo! Groups Links > > > -Jack Brindle, W6FB =======================================================================
