Hi all.
The chip MC13156DW appears to run on negative Vee around 4V. What should be considered to make it run on a negative ground circuit board that will handle its outputs and other circuitry ?

----> https://www.electrokit.com/uploads/productfile/40353/MC13156.pdf

 

What should be considered to make it run on a negative ground circuit board that will handle its outputs and other circuitry ?

All inputs and outputs that go to ground should be referenced the the plus voltage, and all inputs and outputs that go to (-)Vee should go to ground.
AC (capacitor or transformer) couple signals should be unaffected, but all DC coupled signals will now be referenced the the plus voltage instead of ground.
Some of those can be AC coupled prior to the 50Ω loads, if the signal needs to be ground referenced, such as those at pins 5, 10, and 24.