Complex_Type
You asked if there was just one Boeing 737 Type Certificate Data Sheet (TCDS).
Currently there are eleven, ranging from the 737-100 Series to the 737-900 Series.
For anyone interested in the TCDS for the type they are flying, here is a good starting point.
http://www.airweb.faa.gov/Regulatory...e?OpenFrameSet
There are other sources for TCDS including EASA and CAA(UK) but since the question was about Boeing 737, the above will suffice.