Help, Stuck with 74ls147 Priority encoder

Thread Starter

kieran2326

Joined Mar 11, 2010
1
Have Been Stuck on this project, Need a 74Ls147, Unable to buy/find one in new Zealand, is there and equivalent? Please help any ideas where i might be able to find one? Thanks so much
 

SgtWookie

Joined Jul 17, 2007
22,230
Have you tried looking for a 74HC147, or just a plain 74147, or an 74S147, etc?

If you're connecting an HC up to the output of an LS, you may need to use pull-up resistors to match the logic levels.
 

Papabravo

Joined Feb 24, 2006
21,157
A CPLD or an FPGA is about the only alternative I can think of. Since it is a combinatorial circuit you should be able to develop the logic equations or the VHDL or Verilog needed to implement the function.
 
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