CMOS and Pseudo NMOS
The name ``pseudo-NMOS'' originates from the circumstance that in the
  older NMOS technologies a depletion mode NMOS transistor with its gate
  connected to source was used as a pull-up device.
   http://www.iue.tuwien.ac.at/phd/schrom/node101.html


Pseudo-NMOS isn't totem pole output, just add a small PMOS pull-up.

Note: Depletion mode refers to the channel being inverted at Vgs = 0, similar to a typical JFET, you use the gate to pull the device out of conduction.