>"Totem pole" and "push-pull" both mean the same thing.

Not historically. I am with Olin on this one, but see below ...

Push-pull output has historically been used for valve and transistor 
amplifiers that have an output transformer with centre tapped primary, each 
half driven alternatively in a Class B configuration. This was the 
configuration of output stage that every 6 transistor pocket radio from the 
50s through the 70s used.

Totem pole has historically been the term used for the likes of TTL logic 
output stages. These devices never used the term push-pull in their 
descriptions from the manufacturer.

Possibly there has been some confusion arise through the use of push-pull 
for transformerless transistor output stages in audio amplifiers, which 
although of a totem pole style circuit configuration, used the term 
push-pull.

So from this one ends up using push-pull for linear use, and totem pole for 
digital use ... 

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