A microcontroller is all you need. I can realize/program this for you if 
you like - for a small fee.
How many do you need?

- Henry


Jack Brindle schrieb:
> 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
> =======================================================================
> 
> 
> 
> ------------------------------------
> 
> Yahoo! Groups Links
> 
> 
> 
> 

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