东芝TOSHIBA TLP521−1，TLP521−2,TLP521−4 PDF资料下载

应用功能：光电藕合器 The TOSHIBA TLP521−1, −2 and −4 consist of a photo−transistor optically coupled to a gallium arsenide infrared emitting diode. The TLP521−2 offers two isolated channels in an eight lead plastic DIP package, while the TLP521−4 provides four isolated channels in a sixteen plastic DIP package.