[sdiy] 4-bit encoder?

[David G Dixon]

Hello SDIY team,
 
I'm currently waist deep in a digital logic design problem, and I will need
a 4-bit decoder and a 4-bit encoder.  For the decoder, I will use CD4514 or
equivalent.  However, I'm not finding any comparable chip for the encoder.
At this point, I am resigned to making my own 4-bit encoder from two 3-bit
encoders (CD4532) and a quad OR gate (CD4071).
 
My question to the group is this:  Do you know of an actual 4-bit encoder
IC?
 
Thanks and cheers,
Dave Dixon
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