Actually, the Type Certificate lists them as
ERJ 170:
Model ERJ 170-100 LR
Model ERJ 170-100 STD
Model ERJ 170-100 SU
Model ERJ 170-100 SE
Model ERJ 170-200 STD
Model ERJ 170-200 LR
Canadian Type Certificate Data Sheet A-244
US Type Certificate Data Sheet A56NM
However, the flight crew type rating designator is
EMB 170:
Joint Operational Evaluation Board Report - Embraer 170/175