若矩阵\( \begin{pmatrix} a_{11} & a_{12} \\ a_{21} & a_{22}\end{pmatrix}\)满足：\(a_{11}\)，\(a_{12}\)，\(a_{21}\)，\(a_{22}∈\{0,1\}\)，且\( \begin{vmatrix} a_{11} & a_{12} \\ a_{21} & a_{22}\end{vmatrix} =0\)，则这样的互不相等的矩阵共有\((\)　　\()\)