引脚图如下：MR->P2.7UD->P2.6WR->P2.5SP->5V/3V---------A5->P6.7A4->P6.6A3->P6.5A2->P6.4A1->P6.1A0->P6.0---------D7->P4.7D6->P4.6D5->P4.5D4->P4.4D3->P4.3D2->P4.2D1->P4.1D0->P4.0----------（如果只需要点频以下可不接）FSK->P3.7OSK->P3.6RD->P3.5