1OEAB11CLKAB21SAB3GND41A151A26VCC71A381A491A510GND111A6121A7131A8142A1152A2162A317GND182A4192A5202A621VCC222A7232A824GND252SAB262CLKAB272OEAB282OEBA#292CLKBA302SBA31GND322B8332B734VCC352B6362B5372B438GND392B3402B2412B1421B8431B7441B645GND461B5471B4481B349VCC501B2511B152GND531SBA541CLKBA551OEBA#56